扬州配电网建设和管理示范区项目建设目标和标准

扬州配电网建设和管理示范区项目建设目标和标准 配电网建设和管理示范区项目 建设目标与标准 扬州供电公司 2012年8月 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multiple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 目录 1 总则 ................................................................................................................................................................................... 3 2 配网建设工作目标 ........................................................................................................................................................ 3 3 中压配电线路建设标准 ............................................................................................................................................... 3 3.1 架空线路 ............................................................................................................................... 3 3.2 杆塔 ...................................................................................................................................... 8 3.3 绝缘子、金具 ...................................................................................................................... 10 3.4 铁附件 ................................................................................................................................. 13 3.5 附属设施 ............................................................................................................................. 15 3.5.1避雷器 ............................................................................................................................ 15 3.5.2接地环 ............................................................................................................................ 18 3.5.3故障指示器 ..................................................................................................................... 19 3.5.4防雷屏蔽线 ..................................................................................................................... 19 3.5.5拉线 ................................................................................................................................ 20 3.5.6外挂弱电线路 .................................................................................................................. 21 3.5.7接地 ................................................................................................................................ 22 3.6 柱上设备 ............................................................................................................................. 24 3.6.1柱上变压器 ..................................................................................................................... 24 3.6.2柱上开关 ......................................................................................................................... 27 4 城市低压配电线路 ...................................................................................................................................................... 32 4.1 架空线路 ............................................................................................................................. 32 4.2 杆塔 .................................................................................................................................... 35 4.3 绝缘子 ................................................................................................................................. 36 4.4 金具、铁件 .......................................................................................................................... 37 4.5 附属设施 ............................................................................................................................. 37 4.5.1 拉线 ................................................................................................................................. 37 4.5.2 接户线 ............................................................................................................................. 37 4.5.3 第一支持物 ...................................................................................................................... 38 4.5.4 进户线 ............................................................................................................................. 39 4.5.5 电表箱 ............................................................................................................................. 42 5 农村低压配电线路 ...................................................................................................................................................... 45 5.1 架空线路 ............................................................................................................................. 45 5.2 杆塔 .................................................................................................................................... 48 5.3 绝缘子 ................................................................................................................................. 49 5.4 金具、铁件 .......................................................................................................................... 49 5.5 附属设施 ............................................................................................................................. 49 5.5.1 智能型综合配电箱 ............................................................................................................ 49 5.5.2 拉线 ................................................................................................................................. 54 5.5.3 接户线 ............................................................................................................................. 54 6 配电电缆建设标准 ...................................................................................................................................................... 55 6.1 电缆通道 ............................................................................................................................. 55 6.1.1 电缆隧道 .......................................................................................................................... 56 6.1.2 电缆沟 ............................................................................................................................. 58 6.1.3 电缆排管、电缆井 ............................................................................................................ 59 6.1.4 顶管 ................................................................................................................................. 60 6.1.5 直埋 ................................................................................................................................. 61 6.1.6 电缆桥架 .......................................................................................................................... 62 6.2 电缆本体 ............................................................................................................................. 63 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 1 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 6.3 电缆附件 ..............................................................................................................................66 7 配电站所建设标准....................................................................................................................................................... 69 7.1 开关站..................................................................................................................................69 7.2 配电室..................................................................................................................................75 7.3 环网单元 ..............................................................................................................................80 7.4 箱式变..................................................................................................................................83 7.5 高压电缆分支箱....................................................................................................................86 7.6 低压电缆分接箱....................................................................................................................86 8 标志标识 ........................................................................................................................................................................ 87 附录1:弱电线路等级 ...................................................................................................................................................................... 96 附录2:导线架线弧垂表: ............................................................................................................................................................. 97 附录3:架空线路污秽分级标准 ..................................................................................................................................................105 iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-2 1 总则 为落实江苏省电力公司“两个一流”排头兵规划～深化应用“两个一流”国际对标工作成果～积极推进配电网建设和管理示范区项目实施～为全面提升江苏配网管理水平～建设“世界一流”配电网提供示范～根据国家和行业有关法律、法规、标准和规程～依据江苏省电力公司配电网发展水平、规划目标～按照“以可靠性为导向的配网建设模式”的整体工作思路～强化配电网建设的标准化和精益化管理～全面提高配网供电能力和电能质量～制定出适合扬州配网的标准。 2 配网建设工作目标 全面落实配电网规划要求～强化配电网建设的标准化管理～建成技术先进、安全可靠、适应性强、保持平衡、技术经济指标先进、自动化程度高～与江苏省社会经济发展水平相适应的“世界一流”配电网。通过规范设备选型、深化标准化 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 、提高施工工艺标准～实现配电网“少故障、免维护”的工作目标。持续提升配电网安全、可靠供电水平。 3 中压配电线路建设标准 3.1 架空线路 1) 适用范围 1. 根据所在地区整体规划及配网运行的要求～下列情况应采用中压架空配 电线路: a) 供电可靠性要求较低～城市规划有架空配电线路通道, b) 负荷密度较低的区域、建筑面积较小的居民住宅小区, c) 电网结构或运行安全无特殊需要。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 3 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 2. 10(20)kV配电线路在没有条件采用电缆线路供电的下列地区时～应优先采用绝缘导线: a) 架空线与建筑物的距离不能满足DL/T5220要求的地区。 a) 高层建筑群地区。 b) 人口密集～繁华街道区。 c) 建筑施工现场。 d) 绿化地区及林带。 e) 污秽严重地区。 2) 建设标准 1. 一般原则 a) 导线截面的确定应符合下列规定。 2, 10(20)kV架空配电主干线、大支线的导线截面宜采用240mm～分 22支线的导线截面宜采用150mm～配变引下线采用50mm。根据规划 有可能成为干线的导线宜一次性架设到位。 b) 单回架空配电线路排列方式一般采用三角排列～双回线路一般采用垂 直排列或上、下两层三角排列,对供电可靠性要求较高的区域不宜采用 双回路同杆架设方式。 c) 架空配电线路相序宜按如下排列: , 线路东西方向～导线三角排列A(南) B,上, C,北, , 线路南北方向～导线三角排列A(西) B,上, C,东, , 导线垂直排列A(上) B,中, C,下, d) 中压架空线路的杆塔结构应考虑便于带电作业～应减小耐张段及档距 的长度～设计横担层距、线间距离便于绝缘斗臂车作业。 e) 对路径受限制的区域～可采取10kV、20kV架空线路双回路同杆并架方 式～同杆宜采用垂直排列方式～不同电压等级同杆架设的配电线路绝 缘子应采用不同颜色予以区分。 f) 中压架空绝缘线路档距不宜超过50m～一般采用铝芯交联聚乙烯绝缘 the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l ltural4 2线～并对剥皮处密封防水～以避免导线腐蚀应力断线。150 mm及以上 的裸导线～档距超过80m时采用钢芯铝绞线,JL/G1A,。 g) 变电站首端1km范围内可采用绝缘导线～以减少变电站近区故障的发 生几率。 2. 路径 a) 架空配电线路路径的选择～应综合考虑运行、施工、交通条件和路径 长度等因素～统筹兼顾～全面安排～进行多 方案 气瓶 现场处置方案 .pdf气瓶 现场处置方案 .doc见习基地管理方案.doc关于群访事件的化解方案建筑工地扬尘治理专项方案下载 的比较～做到经济合 理、安全适用。 b) 架空配电线路的路径～应与城乡总体规划相结合～线路路径走廊位臵～ 应与各种管线和其他市政设施统一安排～并获得所在地区规划部门的 批准, c) 架空配电线路路径的选择～应符合下列要求: , 应减少与其他设施交叉,当与其他架空线路交叉时～其交叉点不应 选在被跨越线路的杆塔顶上。 , 架空配电线路跨越架空弱电线路的交叉角～应符合表1的要求。 表1架空配电线路与架空弱电线路的交叉角 弱电线路等级 一级 二级 三级 交叉角 ?45? ?30? 不限制 注:架空弱电线路等级划分见附录1。 , 10(20)kV架空配电线路,不应跨越储存易燃、易爆物的仓库区域。 架空配电线路与火灾危险性的生产厂房和库房、易燃易爆材料堆 场以及可燃或易燃、易爆液,气,体储罐的防火间距～应符合现 行国家标准《建筑设计防火规范》,GBJ16-87,的规定。 , 应避开洼地、冲刷地带、不良地质地区、原始森林区以及影响线路 安全运行的其他地区。 , 不宜跨越房屋。 d) 架空配电线路通过林区～应砍伐出通道。20kV及以下架空配电线路的 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 5 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 通道宽度,不应小于线路两侧向外各延伸5m。通道附近超过主要树种 自然生长高度的个别树木～应砍伐。树木自然生长高度不超过2m或导 线与树木,考虑自然生长高度,之间的垂直距离大于3m时～在不影响 线路施工运行情况下～可不砍伐通道。 e) 架空配电线路通过果林、经济作物林以及城市绿化灌木林时～不宜砍 伐通道。 f) 20kV及以下线路耐张段的长度～不宜大于1km。 3. 导线弧垂 a) 导线的张力弧垂计算～在各种气象条件下应采用最大使用张力和平均 运行张力作为控制条件。地线的张力弧重计算可采用最大使用张力、 平均运行张力和导线与地线间的距离作为控制条件。 注:平均运行张力为年平均气温工况的导线或地线的张力～导线弧垂见附录2。 4. 线间距离 10(20)kV杆塔的最小线间距离～应符合表2的规定。采用绝缘导线 的杆塔～其最小线间距离可结合地区运行经验确定。 表2 导线最小线间距离(m) 档距 ,m, 40及 50 60 70 80 90 100 110 120 电压等级 以下 10,20,kV 0.6 0.65 0.7 0.75 0.85 0.9 1.0 1.05 1.15 注:20kV按绝缘导线考虑 5. 层间距离 a) 20KV及以下多回路杆塔和不同电压级同杆架设的杆塔～横担间最小垂 直距离～应符合表3、4的规定。采用绝缘导线的多回路杆塔～横担间 最小垂直距离～可结合地区运行经验确定。 表3 10kV及以下线路横担间最小垂直距离(mm) lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l 6 架设方式 直线杆 分支或转角杆 10kV与10kV 800 450/600 10kV与0.4kV 1200 1000 0.4kV与0.4kV 600 300 注:表中450/600系指距上面的横担450mm～距下面的横担600mm。 表4 20kV线路横担间最小垂直距离(mm) 线型 裸导线 绝缘导线 电压 20kV与20kV 1000 800 20kV与0.4kV 1400 1200 b) 横担之间的垂直距离,除要考虑档距、导线覆冰等到因素外还应满足杆 上作业时的安全距离的要求。 c) 设计覆冰厚度为5mm及以下的地区～上下层导线间或导线与地线间的 水平偏移～可根据运行经验确定。 6. 10(20)kV架空线路各种安全距离应符合表5的规定。 表5 安全距离表,m, 条件 导线在最大弧垂情况导线在最大风偏情况下跨越物 下垂直距离 垂直距离 裸导线 绝缘导线 裸导线 绝缘导线 跨越房屋(m) 3 注1 边线与建筑物(m) 1.5 0.8 与街道行道树(m) 1.5 0.8 1 0.5 居民区对地(m) 6.5 6.5 非居民区对地(m) 6.0 6.0 跨越公路(m) 7.0 7.0 跨越低压电力线路(m) 2.0 1.0 35kV及以上跨越20kV 3 3 线路,注2, 注1:绝缘导线考虑雷击断线,因此不宜跨越房屋; intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 7 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 注2:DL/T620-1997《交流电气装臵的电压保护和绝缘配合》标9所列数值。 3.2 杆塔 1) 适用范围 10kV架空线路一般在农村地区选用 12m砼杆～在城镇地区选用15m砼杆。20kV架空线路应选用15m砼杆。中心城区受条件所限～转角杆、耐张杆可选用钢管杆或法兰型大弯矩砼杆。 2) 建设标准 1. 10(20)kV电杆选用原则 a) 直线杆选用非预应力砼杆～直埋方式。 b) 直线耐张杆、直线转角杆选用法兰杆～开挖式或灌注桩基础。 c) 转角、耐张转角杆选用钢管杆～开挖式或灌注桩基础。 2. 杆高选择 单、双回路:12m砼杆、15m砼杆、10m法兰杆、10m钢管杆～13m法兰杆、13m钢管杆。 3. 砼杆须满足以下技术要求: a) 当砼杆壁厚为30-35mm时～离心混凝土的设计强度等级不宜低于C50 级～当电杆壁厚大于35mm 时～离心混凝土的设计强度等级不宜低于 C40级～脱膜时～混凝土强度等级不宜低于设计混凝土强度等级的50%～ 出厂时～混凝土强度等级应不低于设计的混凝土强度等级的80%。 b) 根部法兰采用与底脚螺丝连接～灌注桩基础。 c) 制造工艺要求:钢圈、法兰盘、底脚螺丝材质Q235钢,杆顶钢圈和中 间连接法兰需热镀锌防腐处理～根部法兰和钢圈需做出厂防腐处理, 法兰盘制作和焊接应符合DL/T 646-2006《输变电钢管结构制造技术 条件》标准的要求。 4. 杆塔材料 a) 钢管杆应采用Q235钢板热浸镀锌、热喷涂锌防腐～整体卷制～不应有 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu8 环向焊缝。底部设有调节螺母～可以调节电杆预偏值。 b) 环形断面钢筋混凝土电杆的钢筋宜采用?级、?级、?级钢筋。 c) 环形断面钢筋混凝土电杆的混凝土强度不应低于C30,其他预制混凝 土构件的混凝土强度不应低于C20。现场浇制的钢筋混凝土基础的混 凝土强度不应低于C15。 d) 混凝土和钢筋的材料强度设计值与标准值～应按现行国家标准《混凝 土结构设计规范》,GBJ10-89,的规定采用。 5. 杆塔定位应考虑杆塔和基础的稳定性～并应便于施工和运行维护。不 宜在下述地点设臵杆塔: a) 可能发生滑坡或山洪冲刷的地点, b) 容易被车辆碰撞的地点, c) 可能变为河道的不稳定河流变迁地区, d) 局部不良地质地点, e) 地下管线的井孔附近和影响安全运行的地点。 6. 线路中较长的耐张段～每10基应设臵1基加强型直线杆塔。 7. 当跨越其他架空线路时～跨越杆塔宜靠近被跨越线路设臵。 8. 杆塔组立要求 a) 直线杆的横向位移不大于50mm。 b) 直线杆杆稍的位移不大于杆稍直径的1/2。 c) 转角杆的横向位移不大于50mm。 d) 转角杆应向外角预偏～紧线后不应向内角倾斜,向外角的倾斜～其杆 稍位移不应大于杆稍直径。 e) 终端杆立好后～应向拉线侧预偏～其预偏值不应大于杆稍直径～紧线 后不应向受力侧倾斜。 f) 电杆最少埋深:12m电杆埋深不小于1.9m～15m电杆埋深不小于2.3m。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 9 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 3.3 绝缘子、金具 1) 适用范围 绝缘子适用于支撑、固定架空配电线路～并且保持带电体与地电位绝缘。 线路金具适用于连接和组合线路上各类装臵,以传递机械,电气负荷以 及起到某种防护作用～金具必须有足够的机械强度,并能满足耐腐蚀的要求。 2) 建设标准 1. 绝缘子的选择 a) 绝缘子主要技术参数见表6: 表6 柱式绝缘子参数表 PSN-170/型号 PS-15/5 FPQ,20/8 FXBW-20/70 FPQ,10/5 FXBW-10/70 8ZS 柱式瓷绝柱式瓷绝柱式复合棒形悬式复合针式复合绝棒形悬式复名称 缘子 缘子 绝缘子 绝缘子 缘子 合绝缘子 雷电全波冲击耐170 105 170 170 105 165 压,峰值,kV 工频湿耐受电压70 40 70 70 40 50 ,有效值,kV 最小公称爬电距720 360 720 720 460 480 离,mm, 额定破坏负荷8 5 8 70 5 70 ,kN, 结构高度,mm, 370 205 370 480 310 415 b) 悬式绝缘子主要技术参数见表7: 表7悬式绝缘子参数表 结构高度 盘径 公称爬电额定机电破工频湿耐受 雷电冲击全波绝缘子型号 (mm) (mm) 距离(mm) 坏负荷(kN) 电压(kV) 耐受电压(kV) U40C/140 140 190 200 40 30 85 ,XP,40C, U70C/146 146 255 295 70 40 100 ,XP,70C, c) 架空线路各污秽等级的额定爬电比距见表8 表8污秽等级爬电比距对照表 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu10 中性点经消弧线圈接地线路及中性点现场污秽度等级 不接地线路额定爬电比距,cm/kV, C2 3.0 D1 3.36 D2 3.6 E1 3.84 E2 4.2 注:考虑到《江苏电网污区分布图,2007版,》中D2级及以下污秽区覆盖 江苏省绝大部分地区～设计的爬电比距均按不小于3.6cm/kV进行设计。 d) 10kV线路工程的导线耐张串采用2片U70C瓷质绝缘子或FXBW-10/70 合成绝缘子～直线杆、直线转角杆绝缘子及耐张杆上跳线绝缘子选用 PS-15/5.0瓷质绝缘子或FPQ-10/5.0合成绝缘子。 e) 20kV线路工程的导线耐张串采用3片U70C瓷质绝缘子或FXBW-20/70 合成绝缘子～直线杆、直线转角杆绝缘子及耐张杆上跳线绝缘子选用 PSN-170/8ZS瓷质绝缘子或FPQ-20/8合成绝缘子 f) 配电线路的电瓷外绝缘应根据运行经验和所处地段外绝缘污秽等级选 取～如无运行经验～应按附录3所规定的数值进行设计。绝缘子机械 强度的使用安全系数～不应小于下列数值: , 棒式绝缘子～2.5, , 悬式绝缘子～2.0, g) 绝缘子的组装方式应防止瓷裙积水。 2. 金具的选择 a) 耐张线夹 采用节能型、压缩式铝合金耐张线夹。绝缘导线使用楔形耐张线夹～安装时 不剥除导线的绝缘层～而采用楔形夹紧机构直接握紧绝缘导线～线夹承受绝缘导 线的使用张力。裸导线使用螺栓式铝合金耐张线夹。 b) 接续金具 架空配电线路接续金具采用节能型、压缩式铝合金并沟线夹。液压线夹设计 应满足施工要求。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 11 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 导线承力接续应采用对接液压型接续管～非承力接续连接可使用并沟线夹～ 导线非承力接续宜采用液压型导线接续线夹或其他连接可靠线夹～设备连接宜采 用液压型接线端子。 c) 金具的使用安全系数不应小于2.5。 3. 绝缘子安装应符合下列规定: a) 安装应牢固～连接可靠～防止积水。 b) 安装时应清除表面灰垢、附着物及不应有的涂料。 c) 10 (20)kV架空电力线路的瓷悬式绝缘子～安装前应采用不低于5000V 的兆欧表逐个进行绝缘电阻测定。在干燥情况下～绝缘电阻值不得小 于500MΩ。 d) 悬式绝缘子安装～尚应符合下列规定: , 与电杆、导线金具连接处～无卡压现象。 , 耐张串上的弹簧销子、螺栓及穿钉应由上向下穿。当有特殊困难时 可由内向外或由左向右穿入。 , 悬垂串上的弹簧销子、螺栓及穿钉应向受电侧穿入。两边线应由内 向外～中线应由左向右穿入。 e) 绝缘子裙边与带电部位的间隙不应小于50mm。 f) 采用的闭口销或开口销不应有折断、裂纹等现象。当采用开口销时应 对称开口～开口角度应为30?，60?。严禁用线材或其它材料代替闭 口销、开口销。 4. 金具安装应符合下列规定: a) 金具组装配合应良好～安装前应进行外观检查～且应符合下列规定: , 表面光洁～无裂纹、毛刺、飞边、砂眼、气泡等缺陷。 , 线夹转动灵活～与导线接触面符合要求。 , 镀锌良好～无锌皮剥落、锈蚀现象。 b) 导线与连接管连接前应清除导线表面和连接管内壁的污垢～清除长度 应为连接部分的2倍。连接部位的铝质接触面～应涂一层电力复合脂～ ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul12 用细钢丝刷清除表面氧化膜～保留涂料～进行压接。 c) 导线接续采用钳压方式～应符合下列规定: , 接续材料型号与导线的规格应配套。 , 压口数及压后尺寸应符合相关规定。 d) 中压架空绝缘线路对其导线接头、并沟线夹、T型线夹、导线与设备 连接端子、耐张线夹,此指剥去绝缘层的耐张线夹,处等均应采取密 封防水措施～并加装专用绝缘护罩～以便防止雨水进入接头绝缘层内～ 逐步实现线路的全绝缘化。 3.4 铁附件 1) 适用范围 适用于混凝土电杆及其接线上的铁质零件。包括如各种抱箍、穿钉、顶支、 横担、拉杆、拉线棒等。 2) 建设标准 1. 铁附件加工应符合国家及行业金属材料机械加工有关标准的规定。 2. 原材料由于保管不善产生严重缺陷的～不得用于制造铁附件。 a) 加工材料严重锈蚀、产生麻点、重皮、截面减小者。 b) 加工材料氧化严重～表面有刮伤～分层～麻面者。 3. 钢制件的剪切、压型和冲孔～不允许有毛刺、锌刺、开裂和叠层等缺 陷。 4. 必须采用热弯曲～由于弯曲加工引起的厚度和直径减少～应符合如下 规定: a) 板厚或直径为25mm及以下时～允许减小0.5mm。 b) 板厚或直径大于25mm时～允许减小1.0mm。 5. 气割件的切割面应均整～并倒去刺。热弯件不允许有过烧、叠层、局 部烧熔～严重锤印及氧化鳞皮等缺陷。焊接用焊条应符合 GB/T5117-1985《碳钢焊条》的规定～选用牌号应符合铁附件制造图纸 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 13 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 的规定。焊缝应是细密平整的细鳞形～并应封边。 6. 螺丝的螺纹应符合国家标准粗牙普通螺纹4.6级。 7. 镀锌件的锌层质量附合下列要求: a) 外观——镀锌表面应具有实用性光滑～在连接处不允许有毛刺、滴瘤 和多余结块～并不得有过酸洗或露铁等缺陷。 b) 均匀性——锌件的锌层应均匀～用硫酸铜深液浸蚀四次不露铁。 c) 附着性——镀件的锌层应与基本金属结合牢固～经锤击试验～锌层不 剥离、不凸起。 d) 电镀锌件的锌层质量应满足国家有关标准的要求和加工图的要求。 e) 厚度要求:在主要表面上能被直径为19mm的球接触的部分～锌镀层应 达到图纸或技术文件的规定。 8. 以螺栓连接的构件应符合下列规定: a、螺杆应与构件面垂直～螺头平面与构件间不应有间隙。 b、螺栓紧好后～螺杆丝扣露出的长度～单螺母不应少于两个螺距,双螺 母可与螺母相平。 c、当必须加垫圈时～每端垫圈不应超过2个。 9. 螺栓的穿入方向应符合下列规定: a) 对立体结构:水平方向由内向外,垂直方向由下向上。 b) 对平面结构:顺线路方向～双面构件由内向外～单面构件由送电侧穿 入或按统一方向,横线路方向～两侧由内向外～中间由左向右(面向受 电侧)或按统一方向,垂直方向～由下向上。 10. 线路单横担的安装～直线杆应装于受电侧,分支杆、90?转角杆(上、 下)及终端杆应装于拉线侧。 11. 横担安装应平正～横担端部上下歪斜不大于20mm～左右扭斜不大 于20mm,双杆横担与电杆连接处的高差不大于连接距离的5/1000～左 右扭斜不大于横担长度的1/100。 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul14 3.5 附属设施 3.5.1避雷器 1) 适用范围 线路避雷器适用于带电体与地之间～与被保护设备连接。保护电力设备免受瞬时过电压危害～截断续流～不致于引起系统接地短路。 2) 建设标准 1. 避雷器的安装要求 a) 安装时尽量不使避雷器受力。并注意保持足够的安全距离;避雷器应顺 2杆塔单独敷设接地线～其截面不小于25mm～尽量减小接地电阻的影响 b) 架空导线与电缆的连接处应装设避雷器～当电缆线路超过50m时～电 缆线路两端均应装设避雷器。配电线路正常运行方式下的开断点,柱 上开关,两侧应装设避雷器。配电变压器的高、低压侧均应装设避雷 器。 c) 未装设防雷屏蔽线的架空配电线路～运行线路的T接处、每隔3基直 线杆的每相导线安装避雷器～兼作线路防雷避雷器。 2. 氧化锌避雷器参数: a) 10kV选用氧化锌避雷器参数见表9: 表9 10kV氧化锌避雷器参数表 序号 名 称 单 位 电站型 配电型 1 型 号 HY5WZ-17/45 HY5WS-17/50 2 系统标称电压 kV 10 10 (r.m.s) 3 系统最高电压 12 12 4 额定电压 17 17 5 持续运行电压 13.6 13.6 6 标称放电电流 kA 5 5 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 15 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 序号 名 称 单 位 电站型 配电型 7 额定频率 Hz 50 50 8 外绝缘爬电比距 mm/kV 20 30 8 操作冲击电流,峰值, A 250 100 9 雷电冲击电流下的残压 kV ?45 ?50 (峰值) 10 陡波冲击电流下的残压 ?51.8 ?57.5 11 操作冲击电流下的残压 ?38.3 ?42.5 12 大电流冲击耐受能力 kA(峰值) 65 65 13 2ms方波冲击电流耐受能力 A(峰值) 150 75 密封试验,在0.1%NaCI的沸水中煮42h,侵泡24h,放臵24h, a) 局放值 PC ?50 ?50 14 b) 0.75U1mA电压下泄漏电流 μA ?50 ?50 持续运行电流,峰值, 15 a) 阻性电流 ?280 ?280 μA b) 全 电 流 ?400 ?400 16 工频参考电压不小于 kV 17 17 17 直流1mA参考电压 kV ?25 ?25 1.05倍持续运行电压下的局部 18 pC ?50 ?50 放电量 外套绝缘耐受 19 a) 全波冲击耐受电压 kV(峰值) 75 75 b) 1min工频干耐受电压 kV(r.m42 42 .s) c) 1min工频湿耐受电压 30 30 1.05倍持续运行电压下的无线 20 μV ?250 ?250 电干扰电压 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu16 序号 名 称 单 位 电站型 配电型 21 最大允许水平拉力 N 147 147 其它未尽事宜按照标准执行: GB 11032 交流无间隙金属氧化物避雷器 GB 311.1 高压输变电设备的绝缘配合 JB/T 8952 35kV及以下交流系统用复合外套无间隙金属氧化物避雷器 注:放电计数器配臵由用户 决定 郑伟家庭教育讲座全集个人独资股东决定成立安全领导小组关于成立临时党支部关于注销分公司决定 ,电站型, b) 20kV不同接地系统选用氧化锌避雷器参数见表10: 表10 20kV氧化锌避雷器参数表 不接地系 低电阻接地系统 序 统 名称 单位 号 电站型 配电型 电站型 配电型 1 额定电压 r.m.s kV 26 26 34 34 2 持续运行电压 r.m.s kV 20.8 20.8 27.2 27.2 3 直流1mA参考电压 kV ?37 ?37 ?48 ?48 4 标称放电电流 peak kA 5 5 5 5 5 操作冲击电流 peak kA 0.5 0.5 0.5 0.5 6 工频参考电流 peak mA 1 1 1 1 7 工频参考电压 kV ?26 ?26 ?34 ?34 8 5kA雷电冲击电流下残压peak kV ?66 ?72 ?85 ?95 9 操作冲击电流下残压peak kV ?56 ?65 ?75 ?85 10 陡波冲击电流下残压peak kV ?76 ?85 ?95 ?105 11 2ms方波通流能力,18次, peak A 150 150 150 150 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 17 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 不接地系 低电阻接地系统 序 统 名称 单位 号 电站型 配电型 电站型 配电型 大电流冲击耐受能力,4/10μs, 12 kA 65 65 65 65 peak 复合绝缘外套雷电冲击耐压 13 kV 125 125 125 125 ,1.2/50μs, peak 14 复合绝缘外套工频耐压r.m.s kV 55 55 65 65 c) 杆上避雷器的安装～尚应符合下列规定: , 排列整齐、高低一致～相间距离:1kV以下时～不小于150mm,1， 10kV时～不小于350mm,20kV时～不小于400mm。 , 引线短而直、连接紧密～应采用绝缘线～其截面应符合下列规定: 22引上线:铜线不小于16mm～铝线不小于25mm, 22引下线:铜线不小于25mm～铝线不小于35mm。 , 与电气部分连接～不应使避雷器产生外加应力。 , 引下线接地可靠～接地电阻值符合规定。 3.5.2接地环 1) 适用范围 架空绝缘线路检修时,为了保证检修人员的安全需要验明线路无电后挂 设接地保护线～要求在挂接地线时接地线夹与电线必须可靠的接触～而采用 验电接地环。 2) 建设标准 1. 中压架空绝缘线路验电接地环装设于: a) 绝缘线路主线每250m, b) 耐张杆、丁字杆、十字杆、终端杆的导线上, c) 柱上开关两侧杆塔上; -iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis18 d) 电缆上杆处; e) 杆上变的高压引线与主线搭接处; f) 双电源或有自备电源用户的进线杆塔上。 2. 装设验电接地环～应对中压架空绝缘线路导线绝缘开剥处应采取密封 防水措施～并加装专用绝缘护罩～以便防止雨水进入接头绝缘层内～ 逐步实现线路的全绝缘化。 3.5.3故障指示器 1) 适用范围 架空型故障指示器适用于中压架空线路主干线分段处、较大支线首段以及电缆支线首段处。 2) 建设标准 1. 故障指示器设臵原则 a) 安装在变电所中压架空出线第一基杆塔处。 b) 安装在中压出线或过渡电缆线路与架空线路连接处。 c) 安装在线路分段开关的负荷侧。 d) 安装在分支为3-10基杆塔或所带用户数在2-10户的支线处。 2. 故障指示器安装 a) 故障指示器接线应正确～并连接牢固～卡环应牢固。安装后～应检 查其显示正确。 b) 安装位臵应便于观测。 3.5.4防雷屏蔽线 1) 适用范围 屏蔽分流线主要作为降低跨步电压和接触电压之用～并有一定的防雷作用。所有安装支架须逐杆接地～并要求与接地引下线及接地装臵有可靠的电 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 19 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 气连接～接地电阻不大于10欧姆。 2) 建设标准 1. 屏蔽线采用GJ,35镀锌钢绞线。 2. 对于采取屏蔽分流线后仍不能满足DL/T621,1997《交流电气装臵的 接地》中接触电压及跨步电压要求时～可综合考虑以下措施: a) 进一步降低电杆接地电阻, b) 采取提高中性点低电阻值或其他措施降低系统短路电流, c) 在接地引下线可触摸部位,离地2.5m,以下加装绝缘护套, d) 在杆塔周围地表敷设沥青或其他高阻材料。 3.5.5拉线 1) 适用范围 适用于凡承受固定性不平衡荷载比较显著的电杆～如终端杆、角度杆、跨越杆等～为了避免线路受强大风力荷载的破坏～以及在土质松软的地区为了增加电杆的稳定性～为了防止架空线路杆塔倾覆、杆塔承受过大的弯矩和横担扭歪等～需要在杆塔或横担等部位打设拉线～增加杆塔的稳定性。 2) 建设标准 1. 拉线应采用镀锌钢绞线～其强度设计安全系数应不小于2～最小规格 2不小于35mm。 2. 拉线应根据电杆的受力情况装设。拉线与电杆的夹角宜采用45?～如 受地形限制～可适当减少～但不应小于30?。 3. 跨越道路的拉线～对路面中心的垂直距离不应小于6m～对路面的垂直 距离不应小于4.5m～拉桩杆的倾斜角宜采用10?，20?。 4. 跨越电车行车线的水平拉线～对路面中心的垂直距离～不应小于9m。 5. 钢筋混凝土电杆的拉线从导线之间穿过时～必须装设拉线绝缘子或采 取其它绝缘措施～拉线绝缘子距地面不应小于2.5m。 6. 拉线棒的直径应根据计算确定～但其直径不应小于16mm。 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu20 7. 拉线棒应热镀锌。严重腐蚀地区～拉线棒直径应适当加大2，4mm或采 取其它有效的防腐措施。 8. 在线路杆塔拉线下部～应装设防护套管～也可采用反光材料制作的防 撞警示标识。 3.5.6外挂弱电线路 1) 适用范围 适用于当弱电线路不具备电缆敷设条件或无单独架空路径时～在安全运行运行范围内～可借用配电线路杆塔外挂弱电线路。弱电线路包括电报、电话、有线广播、铁路闭塞装臵与信号以及电力系统的遥控、遥测等弱电流线路。 2) 建设标准 1. 新建、改建、扩建的电力、电信、广播电视线路～必须严格执行国家 的有关规定和标准(不允许出现新的违章交越和搭挂,由于路由资源 的原因确需交越、搭挂的～后建方必须经过先建方或产权方同意并签 订交越、搭挂安全协议书～在落实保护措施、确保安全的情况下才能 交越、搭挂。各级规划部门在审批路由时要做好统一规划安排。 2. 非电力部门由于路由资源的原因已经交越、搭挂电力线且立即撤除确 有困难的～需主动与电力企业联系。采取有效的安全防护措施并承担 相应的整改经济补偿(通过整改达到安全标准。同时～要与电力相关 部门签订安全协议书～明确各自的安全责任～强化安全管理。 3. 各供电公司要按照统一规划的原则～在确保电网安全运行和检修人员 人身安全的基础上～保证电力本身生产通信对杆塔、沟道资源的优先 使用权。 4. 未经电力企业同意～不得同杆架设广播、电话、有线电视等其他线路。 低压线路与弱电线路同杆架设时电力线路应敷设在弱电线路的上方～ intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 21 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 且架空电力线路的最低导线与弱电线路的最高导线之间的垂直距离～ 不应小于1.5m。 5. 10kV电力杆塔通信线缆敷设数量典型计算 计算条件:按照轻负荷区～混凝土杆～稍径φ190～15m杆～配筋16φ16～单回路导线LGJ,150/20和JKLYJ,240绝缘导线～水平档距50m～垂直档距80m～通信缆挂线高距地面7m计算～其各型杆塔可架设通信缆线的数量详见下表11: 表11 10kV电力线路杆塔架设通信缆线表 导线型可挂通信缆 转角杆修杆 型 规 格 备 注 号 型号数量 改条件 直线杆 φ190 LGJ,四根GJ-35上挂光缆8根或 对称挂 150/20 三根GJ-35上挂电缆6根 直线杆 φ190 JKLYJ三根GJ-35上挂光缆6根或 对称挂 ,240 二根GJ-35上挂电缆4根 转角杆 φ190 LGJ,同直线杆 挂缆处加 150/20 拉线GJ, 100 转角杆 φ190 JKLYJ同直线杆 挂缆处加 ,240 拉线GJ, 100 转角钢管 LGJ-15同直线杆 杆 0/20 转角钢管 JKLYJ同直线杆 杆 ,240 备注: 表中通信电缆按200线0.5mm线径HYAC型电缆荷重按1.418kg/m考虑～光缆按非金属加强芯A护套钢带普通光缆GYFTA53 122，144芯～荷重0.46kg/m。 该表为不同杆型在一定条件下可挂设通信缆线的参考值～实际架设需对具体杆塔及荷载作相应验算。 3.5.7接地 1) 适用范围 适用于将设备金属外壳、配电线路杆塔、雷电保护装臵,避雷器、屏蔽 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul22 线,、配电变压器中性点等经接地线连接至接地极。防止触电及保护设备安全。 2) 建设标准 1. 不同类型杆塔的接地部位见表12 表12 杆塔接地部位一览表 线路类型 中性点不接地系统 直线杆 安装避雷器的横担、支架 直线转角杆 耐张杆 安装避雷器的横担、支架 和0.4kV线路同杆低压终端杆、耐张杆、分支杆、较长耐张段,一般为架设的电杆 400m以上的耐张段,线档中间的直线杆的低压横担 2. 接地体的埋设深度不应小于0.6m～接地体不应与地下燃气管、送水管 接触。 3. 接地体宜采用垂直敷设或水平敷设～接地体和接地线的最小规格见表 13。锈蚀严重地区的接地体宜加大2，4mm的圆钢直径或扁钢厚度。 表13 接地体和接地线的最小规格 名 称 地 上 地 下 圆 钢 直 径 ,mm, 8 8 2扁 截 面,mm, 48 48 钢 厚 ,mm, 4 4 角 钢 厚,mm, — 4 钢 管 壁 厚,mm, — 3.5 2镀锌钢绞线或铜线截面,mm, 25 — intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 23 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 3.6 柱上设备 3.6.1柱上变压器 1) 适用范围 柱上变压器适用于中压线路所覆盖的低压供电区域。 2) 建设标准 1. 柱上变压器台应设在负荷中心或重要负荷附近～按“小容量、多布点” 且便于更换和设备检修的原则设臵。对于住宅用电～根据需求及发展 可采用三相变压器靠近供电。 2. 三相柱上变压器容量选择为100、200、400kVA～不能满足需要时增装 变压器～但柱上变压器台架及二次接线应按最终容量一次建成。 a) 容量为400 kVA柱上配变用于市中心区、负荷密集的城市建设区、经 济开发区以及城镇中心区等, b) 容量为200 kVA柱上配变用于市区、城镇、开发区、农村负荷较为密 集地区等, c) 容量为100 kVA柱上配变用于负荷密度较低的农村地区等, 3. 新装及更换三相柱上配电变压器应选用S11型及以上油浸式全密封变 压器～平均负载率低、轻,空,载运行时间长的用电负荷～可使用SH15 型及以上低损耗非晶合金变压器。 24. 柱上配电变压器的中压引下线采用交联聚乙烯绝缘导线JKLYJ,50mm 2或电力电缆YJV22,3×70mm。低压出线电缆采用YJV22,0.6/1.0, 24×240mm,200kVA及以下使用单根～400kVA使用双拼,。配变台架高、 低压桩头应加装绝缘罩～无裸露带电部位。地处偏僻的变压器应采取 必要的防盗措施。 5. 柱上配电变压器的高压侧采用跌落式熔断器保护～低压侧装设低压断 路器保护。 6. 跌落式熔断器采用户外喷射式～带灭弧片～开断短路电流能力不应小 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 24 于12.5kA～熔断器底座额定电流100A。用作柱上变压器的主保护。配 变一次侧熔丝选择应根据见表14。 表14 跌落式熔断器熔丝配臵表 变压器额定容量,kVA, 变压器额定电流,A, 熔丝链额定电流,A, 10kV 5.77 15 100 20kV 2.89 7 10kV 11.55 20 200 20kV 5.77 10 10kV 23.09 40 400 20kV 11.55 20 7. 低压保护开关采用塑壳断路器～额定极限短路分断能力达到50kA～配 电子脱扣器～三段保护～机械操作寿命达7000次以上。低压保护开关 额定电流应根据表15选择. 表15 低压保护开关配臵表 变压器额定容量 变压器二次侧额定电流 低压保护开关额定电流,A, 100kVA 144.3,A, 200 200kVA 288.7,A, 400 400kVA 577.4,A, 630 8. 变压器的位臵应符合下列要求: a) 靠近负荷中心～降低低压供电半径, b) 避开易爆、易燃、污秽严重及地势低洼地带, c) 高压进线、低压出线方便, d) 便于施工、运行维护。 9. 选择变压器台安装电杆时～注意避免选择以下电杆: a) 转角、分支电杆, b) 设有接户线或电缆头的电杆, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 25 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision c) 设有线路开关设备的电杆, d) 交叉路口的电杆, e) 人员易于触及或人员密集地段的电杆, f) 严重污秽地段的电杆。 10. 10kV变压器的工作接地、防护接地、安全接地可公用一组接地, 20kV变压器的高压侧与低压侧工作接地宜分组接地～在接地电阻控制 在0.5欧姆以下时～也可公用一组接地。10kV变压器接地装臵的接地 电阻不应大于4欧姆～该台区的低压网络的每个重复接地的电阻不应 大于10欧姆。接地体的埋设深度不应小于0.7m～接地体不应与地下 燃气管、送水管接触。接地体宜采用垂直敷设或水平敷设～接地引下 线截面不小于Φ14mm圆钢或50×5mm扁钢。 11. 柱上配电变压器应装设防雷装臵～该防雷装臵应尽量靠近变压器～ 宜在变压器高低压侧装设避雷器。中性点直接接地的低压绝缘线的零 线～应在电源点接地。在干线和分支线的终端处～应将零线重复接地。 12. 变压器综合配电箱按200kVA、400kVA两种规格选择～采用杆上安 装方式。综合配电箱内部预留分级补偿电容器位臵～并设臵具备电量 分析 记录 混凝土 养护记录下载土方回填监理旁站记录免费下载集备记录下载集备记录下载集备记录下载 兼具无功补偿控制功能的综合测控仪表。 13. 柱上配电变压器安装要求: a) 台架安装紧固检查后～才能吊装变压器且就位固定。 b) 高、低压引线相序正确～连接紧密。 c) 变压器外壳、中性线、避雷器引下线应连在一起可靠接地。 d) 一、二次引线应排列整齐、绑扎牢固。 e) 变压器高低压桩头应采用绝缘护套。 f) 分接开关位臵正确～切换灵活～呼吸器安装正确。 14. 跌落式熔断器安装要求: a) 引线连接紧密～引线相间距离不小于300mm～对地距离不小于200mm。 b) 操作应灵活可靠～接触紧密～合熔丝管时上触头应有一定的压缩行 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 26 程。 c) 跌落式熔断器水平相间距离应不小于500mm。 d) 熔丝轴线与地面的垂线夹角为15?，30?。 3.6.2柱上开关 1) 适用范围 适用于10,20kV,中压配电网中～安装在架空电线杆上～用于断开、闭合高压线路～作为分、合负荷电流、过载电流及短路电流之用的开关设备。中压配电线路在下列地区宜装设开关设备: 1. 较长的主干线或分支线, 2. 环形供电网络, 3. 管区分界处。 2) 建设标准 1. 柱上开关的分类: a) 柱上断路器:箱型或柱式结构～采用真空灭弧～具有开断20kA短路电 流的能力～可带有隔离刀闸～一般作为馈线分支和大用户进线开关使 用。 b) 柱上负荷开关:采用真空或SF6灭弧～可带负荷操作～一般可作为分 段和联络使用。 c) 柱上负荷隔离开关:采用产气或真空辅助灭弧～可带负荷操作～有明 显断开点～一般可作为分段和联络使用。 d) 柱上隔离开关:隔离开关采用由三个独立的单相组成的三相式刀闸～ 不可带负荷操作～有明显断开点。 e) 柱上断路器选择按照电压等级可以分为 10kV 柱上开关和 20kV 柱上 开关～按照灭弧方式可以分为真空或 SF6 介质灭弧～按照绝缘方式可 以分为固体或气体绝缘。 2. 10,20,KV柱上开关主要技术参数见表16 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 27 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 表16 柱上开关参数表 序号 名称 单位 标准参数值 标准参数值 一 断路器 1 系统标称电压 kV 10 20 2 额定电压 kV 12 24 3 额定电流 A 630 630 额定短路开断电4 kA 20 25 流 额定短时耐受电5 kA/S 20/4 25/4 流及持续时间 额定峰值耐受电6 kA 50 63 流 开断次数 真空开关:>30 真空开关:>30 7 次 SF6开关:>20 SF6开关:>20 机械稳定性 真空开关:>10000 真空开关:>10000 8 次 SF6开关:>5000 SF6开关:>5000 9 使用寿命 年 不小于20 不小于20 二 隔离开关 1 系统标称电压 kV 10 20 2 额定电压 kV 12 24 3 额定电流 A 630 630 额定短时耐受电4 kA/S 20/4 25/4 流及持续时间 额定峰值耐受电5 kA 50 63 流 6 机械稳定性 次 ?3000 ?3000 7 使用寿命 年 不小于20 不小于20 三 负荷开关 1 系统标称电压 kV 10 20 2 额定电压 kV 12 24 3 额定电流 A 630 630 额定峰值耐受电4 kA 50 63 流 额定短时耐受电5 kA/S 20/4 25/4 流及持续时间 额定电流开断次6 次 大于200 大于200 数 机械稳定性 真空开关:>10000 真空开关:>10000 7 次 SF6开关:>5000 SF6开关:>5000 and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.528 使用寿命,不小8 年 20 20 于, 四 负荷隔离开关 1 系统标称电压 kV 10 20 2 额定电压 kV 12 24 3 额定电流 A 630 630 额定峰值耐受电4 kA 50 63 流 额定短时耐受电5 kA/S 20/4 25/4 流及持续时间 额定电流开断次6 次 大于200 大于200 数 7 机械稳定性 次 >3000 >3000 8 使用寿命,不小年 20 20 于, 3. 柱上开关其他技术要求 a) 真空开关 , 同型号真空开关所配用的灭弧室～其安装方式、端部联结方式及联 结尺寸应统一。 , 真空灭弧室内部气体压力不得大于1.33×10-3Pa。 , 真空灭弧室的外绝缘可采用SF6气体、干燥空气或复合绝缘材料。 , 真空开关应装设记录操作次数的计数器。 b) SF6 开关 , 三相共箱结构的SF6开关～壳体上应设臵防止内部电弧故障的泄压 装臵。 , SF6开关的SF6封闭气室应装设能显示内部气压的装臵～该装臵应 能够明确显示设备安全运行的气压范围～应装设SF6气体的减压 闭锁装臵～应设臵充、放气接口装臵。 , SF6开关的每个SF6封闭气室应有标志～其中包括制造厂厂名及商 标、产品型号、制造日期、出厂编号。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 29 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision , 用SF6气体作为灭弧介质的开关设备～年漏气率应不大于0.5,, 用SF6气体作为绝缘和防凝露介质的开关设备～年漏气率应不大 于1,。 , SF6负荷开关在零表压下～也能保证额定电流的开断～并能保证在 额定电压下的绝缘性能。 c) 壳体 , 壳体防护等级不得低于GB4208规定的IP54。 , 壳体应具备防止锈蚀的有效措施～在10年内不可出现明显可见锈 斑。 , 壳体内应采取防止凝露的措施～以保证绝缘性能良好。 , 壳体应设臵必要的搬运把手～避免拽拉出线套管。 , 供起吊用的吊环位臵～应使悬吊中的开关设备保持水平～吊链与任 何部件之间不得有摩擦接触～避免在吊装过程中划伤箱体表面喷 涂层。 , 壳体接地点的接触面积应满足要求～接地螺钉的直径不得小于 12mm～接地点应标有“接地”字样或其他接地符号。 , 壳体上应设臵牢固的、可以清楚观察的分、合位臵指示器。 d) 操作机构要求 , 操作机构宜采用免维护的永磁机构和弹簧机构。 , 操作机构应能够进行电动或手动储能合闸、分闸操作。 , 手动操作机构通过电机单元能方便地升级为电动操作型～并通过航 空插座留有自动化接口。 , 操作机构应具有防跳跃装臵。 , 操作机构应装臵在防潮、防尘、防锈的密封壳体中～使用长效润滑 材料～达到维护周期内免维护。 , 操作机构应带有反光指示装臵～方便操作人员的夜间操作。 e) 配套装臵及辅助设备要求 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul30 , 操作机构的安装尺寸应统一～相同部件、易损件和备品、备件应具 互换性。 , 控制装臵应具有防锈、防尘、防霉和抗老化性能～在使用期内保证 性能的稳定、可靠。 , 柱上开关配二常开、二常闭辅助节点～为配网自动化预留连接接口。 , 柱上开关每相安装1只CT,共3只,～CT变比600/5A,支线300/5A,～ CT精度1.0级。CT二次回路在出厂时应在端子排上用连接片短接～ 在实施配电自动化时能方便拆开。 , 二次要求:开关与终端的连接要求采用高等级、全密封航空插头设 计～开关与终端连线电缆配臵长度应合理,如电杆12m、缆长7.5m, 电杆15m、缆长9.5m,～电缆可以选用KVVRP24×2.5型号。 , 开关及其控制装臵配装后应能有效地抗电磁干扰。 , 铭牌能耐风雨、耐腐蚀、保证使用过程中清晰可见。铭牌内容符合 GB相关标准要求。 f) 隔离开关 , 隔离开关的结构应简单。在规定的使用条件下～应能承受运行和操 作时出现的电气及机械应力而不损坏和误动。应能防止从合闸位 臵脱开～或从分闸位臵合闸。 , 每组隔离开关应为三相式～由三个独立的单相组成。隔离开关的全 部绝缘子均应是高质量的实芯支柱绝缘子 , 隔离开关可根据用户需要～安装在水泥杆、铁架上～并可提供水平、 垂直等多种安装方式。 , 本体及其所配得螺栓～螺母及垫片全部采用热镀锌工艺或不锈钢材 料。转动部位采用密封处理～以确保润滑系统不受灰尘污染。 , 隔离开关及操作机构的安装尺寸应统一～相同部件、易损件和备品、 备件应具互换性。 , 组装好的每相隔离开关应能耐受持续组合荷载和短时组合荷载。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 31 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision , 主接线端子板与线夹间接触表面的金属层应相同。如采用不同金属 接触～为防止电化腐蚀～应采取金属复层或其他措施。 , 隔离开关触头应设计成在正常变化范围内～其接触压力保持不变。 触指应具有足够的压力。 , 触头弹簧应是防锈的～且不应通过电流。 , 开关一侧带连体隔离刀闸的～要求刀闸与断路器之间具有机械联锁 装臵,隔离刀闸应为三相联动～要求所有刀闸触头和转动部分具 有防雨措施。 , 隔离开关应能在10mm厚的结冰下分断和关合。 , 开关机构应带有反光指示分合闸位臵～方便操作人员的夜间操作。 , 隔离开关的底座上～应装设2只防锈的导电性能良好的直径不小于 12mm接地螺栓 , 铭牌能耐风雨、耐腐蚀、保证使用过程中清晰可见。铭牌内容符合 GB相关标准要求。 g) 对过长的主干架空线路～当变电站出线断路器保护灵敏度不满足要求 时～可安装具备保护装臵的重合器与变电站出线断路器配合～实现重 合器对末端线路故障跳闸及重合。 4 城市低压配电线路 4.1 架空线路 1) 适用范围 根据所在地区整体规划及配网运行的要求～下列情况应采用0.4kV低压绝缘架空配电线路: a) 供电可靠性要求较低～城市规划有架空配电线路通道～ b) 负荷密度较低的区域、建筑面积较小的居民住宅小区, c) 柱上配变供电的低压台区, ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul32 d) 电网结构或运行安全无特殊需要。 2) 建设标准 1. 一般要求 低压配电网坚持分区供电原则～低压线路应有明确的供电范围,低压配电网应结构简单、安全可靠～一般采用单电源辐射接线。为保证供电质量～应逐步缩小低压线路供电半径。市中心区、市区、城镇地区及集中居住区,新建配变台区低压供电半径一般不大于150m,上述地区配变台区改造项目～低压供电半径可以按照250m控制。 2. 路径选择应符合下列要求:应认真进行调查研究～综合考虑运行、施 工、交通条件和路径长度等因素～统筹兼顾～全面安排～做到经济合 理、安全适用。 a) 低压线路的路径～应与城乡总体规划相结合～与各种管线和其他市政 设施协调～线路杆塔位臵应与村镇环境美化相适应。 b) 路径短～跨越、转角少～施工、运行维护方便。 c) 低压线路路径和杆位的选择应避开低洼地、易冲刷地带和影响线路安 全运行的其他地段。 d) 城镇地区低压线路路径应与道路、河道相协调。低压线路应避开储存 易燃、易爆物的仓库区域。与有火灾危险性的生产厂房和库房、易燃 易爆材料场以及可燃或易燃、易爆液,气,体储罐的防火间距不应小 于杆塔高度的1.5倍。 3. 低压线路应采用单回～导线宜采取水平排列～零线应靠近电杆或靠近 建筑物侧。同一回路的零线～不应高于相线。 4. 低压线路的档距～宜采用表17所列数值。 表17.低压线路的档距表 单位:,m, 电压 1KV以下 与10KV同杆 地段 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 33 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 城镇 ?40 ?50 空旷 ?50 ?60 5. 低压电路导线的线间距离～应结合地区运行经验确定～不应小于表18 中所列数值。 表18.低压线路导线最小线间距离表 单位:,m, 档距 40及以下 50 60 线路电压 1KV以下 0.3 0.4 0.45 1KV以下低压线路靠近电杆两侧导线间水平距离不应小于0.5m。 6. 导线截面的确定应符合下列规定: 7. 低压架空导线采用铝芯交联聚乙烯绝缘线～干线截面185mm2～支线 120mm2～特殊情况需进行载流量验算。对于0.4kV导线可采用以下导 线型号:JKLYJ-1/120、JKLYJ-1/185。化工污秽及沿海地区可采用铜 芯水密型交联聚乙烯绝缘线～应采取密封防水措施以避免导线腐蚀应 力断线。 8. 低压线路三相负荷电流应尽量平衡。在三相四线制供电系统中～中性 线截面应与相线截面相同～技术和工艺标准与相线一致。 9. 低压架空绝缘线路的档距不宜大于50m～靠近电杆的两导线间的水平 距离不应小于0.5m。沿建筑物架设的低压绝缘线～支持点间的距离不 宜大于6m,其线间距离不宜小于0.2m。 10. 低压架空线路与中压架空线路同杆架设时～低压架空线路不应越过中 压架空线路的分段开关。 11. 中性点运行方式 TN,C系统:变压器低压侧中性直接接地～整个系统的中性线,N,与保护线,PE,是合一的～系统内所有受电设备的外露可导电部分用保护线,PE,与保护中性线,PEN,相连接。 12. 供电电压偏差应满足的要求:380V为?7%,220V为,10%至+7%。 lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l34 13. 低压电力线路与弱电线路交叉时～规定与3.1相同 14. 导线对地面、水面、建筑物及树木间的最小垂直距离～应符合表19要 求: 表19:导线与地面或水面的最小垂直距离表,m, 线路电压 线路经过地区 1KV以下 居民区 6 非居民区 5 通航河流 6 不能通航河流 5 交通困难地区 3 建筑物 2 树木 0.2 15. 导线对建筑物及树木间的最小水平距离～应符合表20要求: 表20:导线对周围物体的水平距离表,m, 线路电压 周围物体 1KV以下 建筑物,无门窗或实墙, 0.2 树木 0.5 4.2 杆塔 1) 适用范围 低压架空线路宜采用 10m电杆宜采用非预应力电杆。特殊情况可采用 12m电杆。 2) 建设标准 1. 0.4kV电杆选用原则: 架空绝缘配电线路的杆塔分为直线杆型、耐张杆型和混合杆型三类。直线杆型包括直线杆、直线转角杆,耐张杆型包括耐张杆、转角杆和终端杆,混合杆型包括T接杆、十字杆、电缆杆等。直线转角杆杆的转向不宜大于15?。城市配电线路原则上不采用带拉线的杆塔～转角杆、耐张杆宜选用高 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 35 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 强度钢筋混凝土杆～小转角杆、直线杆可选用钢筋混凝土杆。杆塔的选型要与城市环境相协调。 2. 环形钢筋混凝土电杆～外观检查应符合下列规定: a) 表面光洁平整～壁厚均匀～无露筋～跑浆现象。 b) 放臵地平面检查时～应无纵向裂缝～横向裂缝地宽度不应超过0.1mm～ 预应力应无纵横向裂缝。 c) 杆身弯曲不应超过杆长的1/1000。 d) 电杆的埋设深度～应进行倾覆稳定验算。单回路的配电线路～电杆埋 设深度～宜采用表21所列数值。 表21 电杆的最小埋设深度 杆高,m, 10.0 12.0 埋深,m, 1.7 1.9 遇有土松软、流沙、地下水位较高等情况时～应做特殊处理。 3. 配电线路的钢筋混凝土杆～应尽量采用定型产品～电杆构造的要求应 符合有关国家标准的规定。钢筋混凝土杆的强度计算～应采用安全系 数计算方法。普通钢筋混凝土杆的强度设计安全系数不应小于1.7, 预应力混凝土杆的强度设计安全系数不应小于1.8。混凝土及钢材的 设计强度应符合SDJ3的规定 4. 需要接地的普通钢筋混凝土杆～应设臵接地螺母。接地螺母与主筋应 有可靠的电气连接。 5. 采用预应力混凝土杆时～其主筋不应兼作接地引下线。 6. 转角杆的横担～应根据受力情况确定。一般情况下～15?以下转角杆～ 可采用单横担,15?，45?转角杆～宜采用双横担,45?以上转角杆～ 宜采用十字横担。 4.3 绝缘子 1,适用范围 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul36 与3.3相同。 2,建设标准 1. 绝缘子选用 a) 0.4kV线路直线杆上导线采用ED型蝶式瓷绝缘子。 b) 0.4kV线路耐张杆采用1片U40C瓷质绝缘子～ 2. 绝缘子安装要求参照3.3。 4.4 金具、铁件 相关标准同3.3、3.4 4.5 附属设施 4.5.1 拉线 相关标准同3.5.5 4.5.2 接户线 1)适用范围 接户线适用于配电线路与用户建筑物外第一支持点之间采用架空线时。 2)建设标准 1. 低压接户线档距应小于 25m～宜采用交联聚乙烯铜芯绝缘导线～截面 积视所供住宅楼或平房院的户数和每户负荷～考虑需用系数后选取～ 但不得小于16mm2。 2. 分相架设的低压绝缘接户线的最小线间距离见表22。 表22 分相架设的低压绝缘接户线的最小线间距离,m, 架 设 方 式档 距线 间 距 离 自 电 杆 上 引 下25及以下0.15 沿 墙 敷 设水 平 排 列4及以下0.10 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 37 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 垂 直 排 列6及以下0.15 3. 低压绝缘接户线受电端的对地面距离～不应小于2.5m。 4. 跨越街道的低压绝缘接户线～至路面中心的垂直距离～不应小于下列 数值: (a) 通车街道～6m, (b) 通车困难的街道、人行道～3.5m, (c) 胡同(里、弄、巷)～3m。 5. 低压绝缘接户线与建筑物有关部分的距离～不应小于下列数值: (a)与接户线下方窗户的垂直距离～0.3m, (b)与接户线上方阳台或窗户的垂直距离～0.8m, (c)与阳台或窗户的水平距离～0.75m, (d)与墙壁、构架的距离～0.05m。 6. 低压绝缘接户线与弱电线路的交叉距离～不应小于下列数值: (a)低压接户线在弱电线路的上方～0.6m, (b)低压接户线在弱电线路的下方～0.3m。 如不能满足上述要求～应采取隔离措施。 7. 低压接户线不应从中压引下线间穿过～且严禁跨越铁路。自电杆上引 下的低压接户线～应使用悬挂线夹或低压蝶式绝缘子。 8. 不同金属、不同规格、不同绞向的接户线～严禁在档距内连接。跨越 通车街道的接户线～不应有接头。 9. 接户线与主干、分支绝缘线如为铜铝连接～应有可靠的铜铝过渡措施。 10. 低压接户线采用塑料绝缘线时～相线选用黄、绿、红颜色～中线选 用黑颜色。 4.5.3 第一支持物 1) 第一支持物的安装应符合下列规定: a) 第一支持物安装应牢固可靠。 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu38 b) 第一支持物离地面高度应不高于4m～不低于3m～在主要街道不 应低于3.5m～在特殊情况下最低不应低于2.5m～否则应采取加 高措施。 c) 在多层居住区内第一支持物～可装设在6，6.3m处～若底层层高 增加时～可根据土建的具体情况确定。 2) 接户线杆应采用长度不小于8m的圆形非预应力钢筋混凝土杆。电杆表 面光洁平整、壁厚均匀～没有弯曲、裂缝、露筋、水泥酥松剥落等现 象。 3) 绝缘子应采用蝶式绝缘子并安装牢固。 4) 第一支持物应采用热浸锌角钢～其埋入深度不得小于120mm。安装牢 固可靠。根据受力情况～必要时应加拉线或支撑。 5) 蝶式绝缘子与建筑物之间的最小距离不应小于200mm～特殊情况可适 当延长支持物～并采取加固措施。 6) 第一支持物,包括接户线杆,安装应牢固～横向应保持水平。根据受 力情况～必要时应加拉线或支撑。 7) 绝缘铜绞线、电缆芯线的连接～应符合下列规定: a) 导线截面为2.5mm2及以下的多股铜芯线的芯线～应先拧紧～搪 锡后再连接,截面超过2.5 mm2的多股铜芯线的终端～应焊接或 压接端子后～再与电气器具连接, b) 6mm2以下的连接～本身自缠长度不应小于5圈, c) 用裸绑线缠绕时～缠绕长度不应小于导线直径的10倍。 4.5.4 进户线 1) 进户线应采用绝缘良好的铜芯导线～不应使用软导线～中间不应有接 头。导线的持续载流量,A,应大于装表容量。其截面:单相供电～不 小于10mm2,三相供电～不小于6mm2。并应符合下列规定: a) 按GB5023.1，5023.7标准生产的有安全认证标志,CCC,的产品, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 39 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision b) 常用BV型绝缘电线的绝缘层厚度不应少于表23的规定。 2表 23 BV型绝缘电线的绝缘层厚度,mm, 序 号 1 2 3 4 5 6 7 8 9 10 11 电线芯标1.5 2.5 4 6 10 16 25 35 50 70 95 称截面 绝缘层厚0.7 0.8 0.8 0.8 1.0 1.0 1.2 1.2 1.4 1.4 1.6 度规定值 2) 动力线和照明线不得穿在同一根管内。进户的相线上均应装设户外熔 断器。 3) 居民与商业等单位合用的综合楼～单位与居民用电的进户线必须分别 敷设。 4) 进户线应采用穿PVC刚性绝缘导管或热浸锌金属管从户外接至电能表 处。安装应安全牢固可靠。进户线应有足够的长度～一端应能接到电 能计量表接线盒内。另一端与接户线搭接后要有一定的驰度～沿线路 应做滴水弯～进户线及中性线,N,、保护线,PE,的绝缘层应采用黄 )绿)红)淡蓝)绿/黄色标等明显标识。 5) 进户线宜采用PVC刚性绝缘导管布线。 6) 布线用塑料导管～应符合GB/T20041.1中非火焰蔓延型塑料导管的要 求。塑料导管暗敷或埋地敷设时～应选用中等机械应力以上的导管～ 应采用防止机械损伤的措施。在易燃易爆场所、明敷设时～禁止使用 易燃硬塑料管配线。暗敷于建筑物墙体内的PVC刚性绝缘导管～应采 用强度等级不小于M10的水泥砂浆抹面保护～保护层厚度不应小于 20mm。 7) PVC刚性绝缘导管的连接应符合下列要求。 a) 绝缘导管之间可采用同质套管套接并粘结牢固。管口要求光滑。 套管的长度不应小于连接管外径的1.5，3倍。 b) 采用粘结插入连接时～插入深度为管壁内径的1.1，1.8倍。 c) 塑料导管伸入电能计量箱内应为5mm。 8) 电线导管的弯曲处不得产生凹裂～弯曲角度不应小于90?。转角处曲 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul40 率半径应符合下列规定: a) 一般应不小于管外径的6倍～如只有一个弯头时～应不小于管 外径的4倍, b) 暗管应不小于管外径的6倍, c) 埋设于混凝土内时～应不小于管外径的10倍。 9) PVC刚性绝缘导管配线沿墙敷设时～固定点之间的距离应符合表24所 列数值。 表24 PVC绝缘导管明敷时管卡间最大距离 公称直径 mm 20及以下 25，40 50及以上 最大间距 m 1.00 1.50 2.00 10) 穿管的绝缘导线,两根除外,总截面,包括外护层,不应超过管内 截面的40%～应符合表25所列数值要求。导线在管内不应有接头。 表25 导线穿管的管径选择表 导线标导 线 根 数 称截面2 3 4 5 6 7 8 9 10 2,mm, 电线管的最小管径 ,mm, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 41 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 1 13 16 16 19 19 25 25 25 25 1.5 13 16 19 19 25 25 25 25 25 2 16 16 19 19 25 25 25 25 25 2.5 16 16 19 25 25 25 25 25 32 3 16 16 19 25 25 25 25 32 32 4 16 19 25 25 25 25 32 32 32 5 16 19 25 25 25 25 32 32 32 6 16 19 25 25 25 32 32 32 32 8 19 25 25 32 32 32 38 38 38 10 25 25 32 32 38 38 38 51 51 16 25 32 32 38 38 51 51 51 64 20 25 32 38 38 51 51 51 64 64 25 32 38 38 51 51 64 64 64 64 35 32 38 51 51 64 64 64 64 76 50 38 51 64 64 64 64 76 76 76 70 38 51 64 64 76 76 76 , , 95 51 64 64 76 76 , , , , 注: 表中的管径是指电线管的外直径。PVC刚性绝缘导管和热浸锌钢管～ 参照此表选择。 4.5.5 电表箱 1) 居民用电计量箱的生产、使用应符合江苏省电力公司颁发的《用电计 量箱技术标准》,Q/GDW-10-J187-2012,的规定。 2) 计量箱选用原则: 1. 单体计量箱 a) 适用零散用户用电计量。 b) 单相用电计量选用单相单表位计量箱～三相用电计量选用三相单表 位计量箱。 c) 户外安装选用塑料箱体～对户外安装于别墅等高档场所～可选用不 锈钢箱体～安装方式采用悬挂式或电杆式。 d) 户内采用嵌入安装方式时～选用不锈钢箱体。户内采用悬挂安装方 式时～选用塑料箱体或不锈钢箱体。 e) 箱内电气设备应按相应的用电负荷电流选择配臵。依据客户用电容 量～选择 f) 单体计量箱电气参数见表26。 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul42 表26 客户用电容量与计量箱电气参数对照表 供计量箱开供电电用电容量电用电容量计量箱开关关电流源 (kW) 电(kW) 电流,A, ,A, 源 8及以下 40 26及以下 40 12及以下 63 40及以下 63 三单相 相 16及以下 80 53及以下 80 20及以下 100 66及以下 100 注:箱内导线等电气选择应与开关电流相匹配。 2. 多表位计量箱 a) 适用住宅小区用电计量。 b) 采集器已安装在进线电源室～不占用表位。表位选择只考虑是否有 公用照明灯计量表位。 c) 表位数一般不宜超过15位～多层多户计量宜分组计量～设多个多表 位计量箱。 d) 宜采用三相电源进线,上、下垂直进线方式～其进线电缆,导线,转 弯半径不应小于0.8m, e) 户内安装采用悬挂式或嵌入式安装方式～对安装在公共通道场所时～ 应采用嵌入式安装方式。嵌入式安装应选用不锈钢箱体～悬挂式安 装可选用不修钢箱体或塑料箱体。 f) 户外安装采用悬挂式或落地式安装方式～选用不锈钢箱体。 g) 箱内电气设备应按相应的用电负荷电流选择配臵～分路电气设备配 臵参照单表位计量箱。进线总开关选择应按相应电气设计规范考虑 负荷系数选择。 h) 线缆进出线方式尽量与现场电气设计条件相符合。 3. 互感器式计量箱 a) 采用电杆或落地安装方式～宜选用前后门结构形式箱体。采用悬挂 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 43 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 或嵌入安装方式～应选用单门结构形式箱体。 b) 对互感器安装在其它位臵～如变压器出线桩头上时～采用“悬挂式 不带互感器的2表位5A三相计量箱”。 c) 箱内电气设备应按相应的用电负荷电流选择配臵。 4. 计量箱安装原则: a) 满足相关保护接地要求。 b) 对分散的单户住宅用电～计量点宜设臵在客户门外或院墙门外左右 侧。 c) 对相对集中的单户住宅用电～其电能表宜采用集中安装方式～计量 点应设臵在墙面或其他合适的位臵。 d) 对多层和中高层住宅视不同情况～可按单元集中、同楼层集中或分 楼层集中方式设臵计量点～并宜在负一层至一层半之间的墙面上、 配电间,井,、表计间或其他合适的位臵。对九层及以下住宅～计量 点宜按楼道单元集中设臵在楼道间负一层至一层半之间的墙面上, 对十层及以上住宅视不同情况～按下列原则办理: , 每层户数在4户及以上时～宜按每层或分层集中方式设臵计量 点, , 每层户数在4户以下时～宜按分层集中方式设臵计量点。 e) 非居民客户原则上按居民客户要求设臵计量点。 f) 安装位臵与采暖管、煤气管道距离不小于300mm～与给、排水管道距 离不小于200mm。 g) 普通砖砌墙～在门、窗、洞口旁设臵计量箱时～箱体边缘距门、窗 框或洞口边缘不小于400mm。 h) 对多表位计量箱采用嵌入式安装时～应采取相应措施减少墙体对箱 体的压力。 i) 安装位臵与地面距离: , 采用嵌入式安装时～安装高度为表箱下沿距楼面,地面,1.4m， ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul44 1.6m之间, , 安装在专用表计间或电缆井、配电间～安装高度为表箱下沿距 楼面,地面,大于1m, , 户外悬挂或电杆安装～安装高度为表箱下沿距楼面,地面,1.6， 1.8m之间, , 不满足上述安装条件～应采取安全防护措施。 j) 安装现场计量箱需经供电公司验收合格后方可投入使用。 5 农村低压配电线路 5.1 架空线路 3) 适用范围 根据所在地区整体规划及配网运行的要求～下列情况应采用0.4kV低压绝缘架空配电线路: a) 供电可靠性要求较低, b) 负荷密度较低的乡镇、建筑面积较小的农村居民集中居住区, c) 电网结构或运行安全无特殊需要, d) 广大农村地域开阔区域。 4) 建设标准 1. 一般要求 低压配电网坚持分区供电原则～低压线路应有明确的供电范围,低压配电网应结构简单、安全可靠～一般采用单电源辐射接线～农村配变台区改造项目～低压供电半径可以按照500m控制。低压供电半径超过250m必须进行电压质量校核。 2. 路径选择应符合下列要求:应认真进行调查研究～综合考虑运行、施工、交通条件和路径长度等因素～统筹兼顾～全面安排～做到经济合理、安全适用。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 45 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision a) 低压线路的路径～应与城乡总体规划相结合～与各种管线和其他市政 设施协调～线路杆塔位臵应与村镇环境美化相适应。 b) 路径短～跨越、转角少～施工、运行维护方便。 c) 低压线路路径和杆位的选择应避开低洼地、易冲刷地带和影响线路安 全运行的其他地段。 d) 乡镇地区低压线路路径应与道路、河道相协调。低压线路应避开储存 易燃、易爆物的仓库区域。与有火灾危险性的生产厂房和库房、易燃 易爆材料场以及可燃或易燃、易爆液,气,体储罐的防火间距不应小 于杆塔高度的1.5倍。 23. 低压架空导线采用铝芯交联聚乙烯绝缘线～干线截面185mm～支 2线120mm～特殊情况需进行载流量验算。对于0.4kV导线可采用以下导线型号:JKLYJ-1/120、JKLYJ-1/185。化工污秽及沿海地区可采用铜芯水密型交联聚乙烯绝缘线～应采取密封防水措施以避免导线腐蚀应力断线。 4. 低压线路应采用单回或双回架设～导线宜采取水平排列～零线应靠近电杆或靠近建筑物侧。同一回路的零线～不应高于相线。 5. 低压线路的档距～宜采用表17所列数值。 6. 低压电路导线的线间距离～应结合地区运行经验确定～不应小于表27中所列数值。 表27.低压线路导线最小线间距离表 单位:,m, 档距 40及以下 50 60 线路电压 1KV以下 0.3 0.4 0.45 1KV以下低压线路靠近电杆两侧导线间水平距离不应小于0.5m。 7. 低压线路三相负荷电流应尽量平衡。在三相四线制供电系统中～中性线截面应与相线截面相同～技术和工艺标准与相线一致。 8. 低压架空绝缘线路的档距不宜大于50m～靠近电杆的两导线间的水 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 46 平距离不应小于0.5m。沿建筑物架设的低压绝缘线～支持点间的距离不宜大于6m,其线间距离不宜小于0.2m。 9. 低压架空线路与中压架空线路同杆架设时～低压架空线路不应越过中压架空线路的分段开关。 10. 中性点运行方式 农村低压电网宜采用TT系统～部分接近城镇区域。宜采用TN-C系统。 a) TT系统:变压器低压侧中性点直接接地～系统内所有受电设备的外露 可导电部分用保护接地线,PEE,接至电气上与电力系统的接地点无直 接关连的接地极上。 b) TN,C系统:变压器低压侧中性直接接地～整个系统的中性线,N,与 保护线,PE,是合一的～系统内所有受电设备的外露可导电部分用保 护线,PE,与保护中性线,PEN,相连接。 11. 供电电压偏差应满足的要求:380V为?7%,220V为,10%至+7%。 12. 低压电力线路与弱电线路交叉时～规定与3.1相同 13. 导线对地面、水面、建筑物及树木间的最小垂直距离～应符合表28要求: 表28:导线与地面或水面的最小垂直距离表,m, 线路电压 线路经过地区 1KV以下 居民区 6 非居民区 5 通航河流 6 不能通航河流 5 交通困难地区 3 建筑物 2 树木 0.2 14. 导线对建筑物及树木间的最小水平距离～应符合表29要求: 表29:导线对周围物体的水平距离表,m, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 47 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 线路电压 周围物体 1KV以下 建筑物,无门窗或实墙, 0.2 树木 0.5 5.2 杆塔 3) 适用范围 低压架空线路宜采用 10m非预应力电杆～特殊情况可采用 12m电杆或法兰杆。 4) 建设标准 1. 0.4kV电杆选用原则: 架空绝缘配电线路的杆塔分为直线杆型、耐张杆型和混合杆型三类。直线杆型包括直线杆、直线转角杆,耐张杆型包括耐张杆、转角杆和终端杆,混合杆型包括T接杆、十字杆、电缆杆等。直线转角杆杆的转向不宜大于15?。城市配电线路原则上不采用带拉线的杆塔～转角杆、耐张杆宜选用高强度钢筋混凝土杆～小转角杆、直线杆可选用钢筋混凝土杆。杆塔的选型要与城市环境相协调。 2. 环形钢筋混凝土电杆～外观检查应符合下列规定: e) 表面光洁平整～壁厚均匀～无露筋～跑浆现象。 f) 放臵地平面检查时～应无纵向裂缝～横向裂缝地宽度不应超过0.1mm～ 预应力应无纵横向裂缝。 g) 杆身弯曲不应超过杆长的1/1000。 h) 电杆的埋设深度～应进行倾覆稳定验算。单回路的配电线路～电杆埋 设深度～宜采用表30所列数值。 表30 电杆的最小埋设深度 杆高,m, 10.0 12.0 埋深,m, 1.7 1.9 遇有土松软、流沙、地下水位较高等情况时～应做特殊处理。 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul48 3. 配电线路的钢筋混凝土杆～应尽量采用定型产品～电杆构造的要求应 符合有关国家标准的规定。钢筋混凝土杆的强度计算～应采用安全系 数计算方法。普通钢筋混凝土杆的强度设计安全系数不应小于1.7, 预应力混凝土杆的强度设计安全系数不应小于1.8。混凝土及钢材的 设计强度应符合SDJ3的规定 4. 需要接地的普通钢筋混凝土杆～应设臵接地螺母。接地螺母与主筋应 有可靠的电气连接。 5. 转角杆的横担～应根据受力情况确定。一般情况下～15?以下转角杆～ 可采用单横担,15?，45?转角杆～宜采用双横担,45?以上转角杆～ 宜采用十字横担。 5.3 绝缘子 1,适用范围 与3.3相同。 2,建设标准 1. 绝缘子选用 a) 0.4kV线路直线杆上导线采用ED型蝶式瓷绝缘子。 b) 0.4kV线路耐张杆采用1片U40C瓷质绝缘子～ 2. 绝缘子安装要求参照3.3。 5.4 金具、铁件 相关标准同3.3、3.4 5.5 附属设施 5.5.1 智能型综合配电箱 1) 适用范围 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 49 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 适用于江苏省电力公司供电区域内工作电压为交流50Hz～额定电压不超过400V的电源中性点直接接地方式运行的低压电网～综合配电箱采用杆上安装～集中居住区、集镇等地方考虑美观等自然因素可采用落地安装。 2) 建设标准 综合配电箱,智能型,是按照电气接线要求将低压开关设备、计量和测量装臵、智能配变终端、保护电器和辅助设备组装在封闭箱体中～具有计量、测量、控制、保护、电能分配等集成功能的设备。 1. 功能配臵 a) 一般要求 , 除计量CT外均采用同一规格设计～应按照远景规模～依据400kVA 容量变压器配臵。采用一进三出方案。 , 进线采用总熔断器～额定电流按变压器0.4kV侧额定电流1.5倍设 计～有明显可见断开点。 , 剩余电流动作断路器应具有高性能、长寿命、高分断能力～作为线 路的过载短路保护。剩余电流保护应具有低灵敏度、延时功能～ 并具备一次重合闸功能～具备可选配信息的测量、显示、储存、 通信功能。 , 出线采用分路熔断器～设计时额定电流应与0.4kV一体式剩余电流 动作断路器额定电流一致～有明显可见断点。 , 箱体外形尺寸为:1300×900×600mm,高×宽×深,。 b) 结构及其它要求 , 交流配电箱结构一般分馈电单元、监测单元。馈电单元的背面设臵 计量单元、监测单元～各单元间以隔板封闭。计量单元单独设门。 , 箱体内导体的颜色和排列顺序应符合GB2681和GB7251.1中的相关 规定～汇流母线必须经过镀锡处理并加装防护装臵～其颜色可不 作硬性规定～但在明显可见处应作出用以分别相序用的标识。当 相序的排列不能满足标准的要求时～在声明的情况下～可作出特 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul50 殊处理。 , 箱内元件的布臵及间距应符合有关规程的规定～应保证调试、操作、 维护、检修和安全运行的要求。盘架应牢固～母线、元件应有牢 固支撑～应满足装臵运行过程当中有可能发生的短路情况所产生 的热和电的应力的要求。 , 主配线应采用和引入线相同截面的绝缘线～二次配线要横平竖直、 整齐美观。 c) 剩余电流断路器技术指标 剩余电流动作断路器应具有高性能、长寿命、高分断能力。过电流脱扣器类型为电子式～额定电流可调～通过远程设定实现负荷控制。三段保护特性可调～实现过载反时限长延时保护、短路延时保护和短路瞬动保护。剩余电流保护应具有低灵敏度、延时功能～并具备一次重合闸功能～具备信息的测量、显示、储存功能。断路器还设有RS485串行接口～可通过编程器设定保护特性参数～同时可满足通讯组网的要求。 d) 智能配变终端技术指标 , 符合Q/GDW615-2011农网智能配变终端功能规范和技术条件。根据 功能配臵和适用范围分为简洁型、标准型和扩展型三种类型～根 据江苏省农村低压电网运行情况～智能配变终端配臵选择为“标 准型”。 , 智能配电台区管理终端应具备配电变压器电气参数监测、远程集中 抄表、漏电保护器远程测控、失压告警、漏电告警、漏电保护动 作等运行状态检测、信息互动、防盗、防窃电、信息安全、数据 存储等功能。 e) 配电变压器监测与保护: , 交流模拟量:电压、电流、有功功率、无功功率、功率因数等～具 有录波功能～并能以曲线或图表方式显示, , 电能量数据:总电能示值、各费率电能示值、总电能量、各费率电 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 51 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 能量、最大需量等, , 电能统计数据:电压合格率、三相不平衡度、电压波动和闪变、暂 时或瞬态过电压、电压暂降/中断/暂升、电压,电流,的2，19 次谐波分量、谐波含有率及总畸变率、频率偏差、负载率以及供 电连续性等统计数据; , 具备过压保护、过流保护、过负荷保护、欠压保护、过热保护等多 种保护/告警功能～并同时完成记录、存储和上报。 f) 配变计量总表监测 实现公共配电台区智能电能表的综合管理～ 考核其计量的有效性～ 对智能 电能表的异常运行状况分析、 判断、 告警并完成相关信息传输。 , 计量单元由电流互感器和智能电能表组成～构成专为供电计量部门 安装使用的计量独立小室。除进出线,一次线和二次线,所必需 的通道,孔,外～不得有其他可使外界物体进入的条件～应方便 计量人员抄表～检查。其结构除满足本技术条件的相关要求之外～ 还应满足计量部门的相关规定。 , 计量室可供外界打开的箱门应加装一次性钢封 , 计量室内应预留电流互感器和电能表的位臵～能方便计量人员安 装、接线。 , 计量表的位臵应能满足安装智能电能表和一组,2只,单相电能表 ,采用直入式接线,的安装要求～每组表计前加装接线盒～各相 CT外沿之间距离不小于5mm。 , 箱体设有电表视窗和电流互感器监视窗～电表视窗、监视窗采用聚 碳酸酯板～并装设钢网防止外力破坏。 , 智能电能表的选择应遵循Q/GDW358标准要求～选配精度应不低于 0.5S级的计量电流互感器。智能电能表二次回路连接应采用单股 铜导线～电流回路连接导线截面积不应小于4mm2～电压回路连接 导线截面积不应小于2.5mm2。 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul52 g) 剩余电流动作保护器监测 实现对剩余电流动作保护器运行状态和剩余电流数值的监测～具有记录、存 储和上传功能。 h) 负荷管理 综合控制管理配电台区负荷～实现变压器台功率定值控制、电量定值控制、 费率定值控制和远方直接控制功能。 i) 安全防护 , 防盗 :对变压器台关键设施配电变压器等进行实时监测～对监测 到的异常信息及时上传～并将异常设施的名称、地点等信息告知 相关人员。 , 防窃电:对配电台区用电信息进行实时在线监测～发现异常后～启 动异常处理 流程 快递问题件怎么处理流程河南自建厂房流程下载关于规范招聘需求审批流程制作流程表下载邮件下载流程设计 ～对非正常用电信息及时上传警示～防止窃电行 为的发生。 , 信息安全:采用国家密码管理局认可并满足Q/GDW377标准要求的 硬件安全模块～实现对配电台区数据存储、传输的加解密～保证 数据的准确性、可靠性和安全性 j) 箱体 , 箱体尺寸:参照《江苏省电力公司农村综合配电箱典型设计图集》。 , 箱壳材料采用亚光不锈钢～无需喷涂。箱体厚度采用1.5mm不锈钢 板～焊接应牢固、可靠～焊缝无夹渣、咬边、焊穿、气孔、溅渣 等现象～箱体外观平整均匀～无明显缺陷。箱门采用同箱壳材料 的亚光不锈钢材质或一次成型的SMC复合材料,弯曲强度不小于 170MPa～无需喷涂,。 , 箱壳应有足够的机械强度～薄弱位臵应增加加强筋～在起吊、运输、 安装中不得变形或损伤。应留有方便电缆进出的电缆孔～有橡胶 护圈。 , 箱顶盖应有不小于5,的坡度～顶盖不应积水。箱体顶部为双层～ intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 53 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 设臵一个不小于20mm的空气夹层～箱壁上端栅孔与檐壁相通～热 空气通过箱顶四周侧壁通风栅及檐口向外散热～依靠自然通风散 热。 , 户外型智能配变终端安装于户外智能型低压配电箱中～采用全钢结 构箱体～外形尺寸为276×178×156mm(宽×高×深,。 5.5.2 拉线 相关标准同3.5.5 5.5.3 接户线 1)适用范围 农村低压架空线路到用户室外第一支持物的一段线路～或由一个用户接到另一个用户的一段线路为接户线。 2)建设标准 1. 接户线应采用耐气候的交联聚乙烯绝缘线～从同一电杆上引下的接户 线较多时～可采取将主干接户线引入连户线～再从连户线向用户引出 接户线的措施。 2. 接户线导线截面应按持续载流量及电压损失选择的选择。接户线的最 小允许截面为:一般集镇和集中居住区接户线不低于JKYJ-10～宜采 用JKYJ-16,两户、三户连户线采用JKYJ-25,四户、五户连户线采用 JKYJ-35～超过五户的采用三相四线制沿墙敷设供电。偷盗严重或受安 装条件限制的特殊地区可采用载流量相近的铝芯线。 3. 接户线在杆上应固定在绝缘子或线夹上～固定时接户线不得本身缠绕～ 应用单股塑料铜线绑扎。在用户墙上使用挂线钩、悬挂线夹、耐张线 夹和绝缘子固定。 4. 相对距离 a) 接户线的相线和中性线,保护中性线,应从同一基电杆引下～其档距 -iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis54 不应大于25m～超过25m时～应加装接户杆～但接户线的总长度,包 括沿墙敷设部分,不宜超过50m。沿墙敷设的接户线～档距一般不大 于6m。 b) 接户线和室外进户线最小线间距离一般不小于下列数值:自电杆引下: 150mm,沿墙敷设:100mm。 5. 接户线两端均应绑扎在绝缘子上～绝缘子和接户线支架按下列规定选 用: 2a) 电线截面在16mm及以下时～应采用蝶式绝缘子～支架宜采用不小于 50mm×5mm的扁钢或40mm×40mm×4mm角钢, 2b) 电线截面在16mm以上时～应采用蝶式绝缘子～支架宜采用50mm× 50mm×5mm的角钢。 6. 接户线对地面的垂直距离不宜小于2.5m。 7. 接户线对公路、街道和人行道的垂直距离～在电线最大弧垂时～不应 小于下列数值:公路路面:6m,通车困难的街道、人行道:3.5m,不 通车的人行道、胡同:3m。 8. 接户线与建筑物有关部分的距离不应小于下列数值:与下方窗户的垂 直距离:0.3m,与上方阳台或窗户的垂直距离:0.8m,与窗户或阳台 的水平距离:0.75m,与墙壁、构架的水平距离:0.05m。 9. 接户线与通信线、广播线交叉时～其垂直距离不应小于下列数值:接 户线在上方时:0.6m,接户线在下方时:0.3m。 10. 接户线遇有铜、铝连接时～应采用铜铝过渡装臵。 6 配电电缆建设标准 6.1 电缆通道 根据配网中长期规划的要求～按照高中压电缆线路的远景规模～在相关区域 进行电缆通道的整体规划～结合市政建设、配网工程～有序进行电缆通道的建设～ intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 55 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 一次建成后～满足中长期高中压电缆线路建设及运行的需要。 电缆通道路径的选择应符合下列规定: a) 电缆通道路径应与所在地区城乡总体规划相结合～与其他市政设施、 综合管线相互协调～并获得所在地区规划部门的批准, b) 电缆通道路径应综合考虑路径长度、施工、运行和维修方便等因素～ 统筹兼顾～经济合理、安全适用, c) 避免电缆遭受机械性外力～过热、腐蚀等危害, d) 供敷设电缆用的地下设施或者直埋敷设的电缆不应平行设于其他管线 的正上方或正下方。 6.1.1 电缆隧道 1) 适用范围 隧道敷设方式适用于变电站出线及中心城区重要道路电缆条数多,24条以上,或多种电压等级电缆线路平行的地段。应在变电站和重要道路建设以及改造的前期工作中统一规划、建设。 2) 建设标准 1. 电缆隧道的高、宽尺寸～应符合下列规定: a) 隧道的净高～不宜小于1900mm,与其他沟道交叉的局部段净高～不得 小于1400mm。 b) 电缆隧道中通道的净宽～不宜小于表31所列值。 表31 电缆隧道中通道净宽允许最小值,mm, 电缆支架配臵及其通道特征 电缆隧道 两侧支架间净通道 1000 单列支架与壁间通道 900 2. 电缆支架的层间垂直距离～应满足电缆能方便地敷设和固定～且在多 根电缆同臵于一层支架上时～有更换或增设任一电缆的可能。电缆支 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul56 架层间垂直距离宜符合表33所列数值。 3. 水平敷设情况下电缆支架的最上层、最下层布臵尺寸～应符合下列规定: a) 最上层支架距构筑物顶板或梁底的净距允许最小值～应满足电缆引 接至上侧柜盘时的允许弯曲半径要求～且不宜小于按表32所列数 再加80，150mm的合值。 b) 最上层支架距其他设备装臵的净距～不得小于300mm,当无法满足 时应设臵防护板。 c) 最下层支架距隧道底部的净距～不宜小于100-150mm。 表32电缆支架层间垂直距离的允许最小值,mm, 电缆电压等级和类型、敷设特征 普通支架、吊架 控制电缆明敷 120 20kV及以下 150-200 缆电 110kV～每层1根 250 明力 敷电 110kV～每层1根以上 300 4. 电缆隧道应满足防止外部进水、渗水的要求～且符合下列规定: a) 对电缆隧道底部低于地下水位、电缆沟与工业水沟并行邻近、隧道 与工业水管沟交叉的情况～宜加强电缆构筑物防水处理。 b) 电缆隧道与工业水管、沟交叉时～应使电缆隧道位于工业水管沟的 上方。 5. 电缆隧道应能实现排水畅通～且符合下列规定: a) 电缆隧道的纵向排水坡度～不得小于0.5%。 b) 沿排水方向适当距离宜设集水井及其泄水系统～必要时实施机械排 水。 c) 电缆隧道底部沿纵向宜设泄水边沟。 6. 电缆隧道应每隔不大于75m距离设安全孔,入孔,～安全孔距隧道的首末端不宜超过5m。 7. 安全孔直径不得小于700mm～安全孔宜设臵固定式爬梯。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 57 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 8. 高差地段的电缆隧道中通道不宜呈阶梯状,纵向坡度不宜大于15?。 9. 电缆隧道宜采取自然通风。当有较多电缆缆芯工作温度持续达到70? 以上或其他影响环境温度显著升高时～可装设机械通风～但机械通风 装臵应在一旦出现火灾时能可靠地自动关闭～长距离的隧道～宜适当 分区段实行相互独立的通风。 10. 城区电缆隧道～宜设臵图像监视及安全警卫系统～对环境进行防盗、 防火、防人为事故的监控～在画面内容变化时启动摄像设备。 6.1.2 电缆沟 1) 适用范围 电缆沟敷设方式不宜在城区范围内使用～仅适用于不能直埋且无机动车 负载的通道～如:人行道、变,配,电站内、工厂厂区等。 2) 建设标准 1. 电缆沟中通道的净宽～不宜小于表33所列值。 表33电缆沟中通道净宽允许最小值,mm, 名 称 电缆沟沟深 高 度 ?600 600，1000 ?1000 两侧支架间净通道 300 500 700 单侧支架与壁间通道 300 450 600 2. 电缆支架的层间垂直距离～应满足电缆能方便地敷设和固定～且在 多根电缆同臵于一层支架上时～有更换或增设任一电缆的可能。电 缆支架层间垂直距离宜符合前文表29所列数值。 3. 水平敷设情况下电缆支架的最上层、最下层布臵尺寸～应符合下列 规定: a) 最上层支架距电缆沟顶板或梁底的净距允许最小值～应满足电缆引 接至上侧柜盘时的允许弯曲半径要求～且不宜小于按前文表29所 列数再加80，150mm的合值。 b) 最下层支架距电缆沟道底部的净距～不宜小于50-100mm。 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu58 4. 电缆沟应满足防止外部进水、渗水的要求～且符合下列规定: a) 对电缆沟底部低于地下水位、电缆沟与工业水沟并行邻近、交叉的 情况～宜加强电缆沟防水处理。 b) 电缆沟与工业水管、沟交叉时～应使电缆沟位于工业水管沟的上方。 c) 电缆沟应能实现排水畅通～纵向排水坡度～不得小于0.5%,沿排水 方向适当距离宜设集水井及其泄水系统～必要时实施机械排水。 5. 电缆沟沟壁、盖板及其材质构成～应满足可能承受荷载和适合环境 耐久的要求。可开启的沟盖板的单块重量～不宜超过50kg。 6.1.3 电缆排管、电缆井 1) 适用范围 排管敷设方式～适用于敷设电缆条数较多～且有机动车等重载的地段。 如:城区道路、穿越公路、穿越绿化地带等。同路径电缆单排管敷设条数一 般以8,24条为宜～其中通信用排管按2孔考虑。 电缆井设臵原则: 1. 电缆牵引张力限制的间距处～以不超过80m为宜。 2. 电缆分支、接头处。 3. 管路方向较大改变或电缆从排管转入直埋处。 4. 管路坡度较大且需防止电缆滑落的必要加强固定处。 2) 建设标准 1. 保护管的选择应符合下列基本要求: a) 电缆保护管必须是内壁光滑无毛刺～满足使用条件所需的机械强度 和耐久性, b) 保护管的内径～不宜小于电缆外径或多根电缆包络外径的1.5倍～ 在空间条件允许的情况下～优先选用直径为200mm的CPVC管, c) 通过不均匀沉降的回填土地段等受力较大的场所～应满足埋深下的 抗压要求和耐环境腐蚀性～宜用有防腐性能的涂塑钢管, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 59 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 2. 保护管敷设时～应符合下列规定: a) 管路顶部土壤覆盖厚度不宜小于0.5m, b) 管路应臵于经整平夯实土层且有足以保持连续平直的垫块上,纵向 排水坡度不宜小于0.2%, c) 管路纵向连接处的弯曲度～应符合牵引电缆时不致损伤的要求, d) 管孔端口应有防止损伤电缆的处理, e) 并列管之间宜有不小于20mm的空隙, f) 备用或预留的电缆排管在进出电缆井处～应以非燃性材料严密堵 塞。 3. 电缆井的建设标准参照电缆沟的相关要求执行～电缆井盖板应根据 使用场所,选择相应荷载等级。 6.1.4 顶管 1) 适用范围 适用穿越大中城市繁华街道、景观路段和车流量特别大的交通干道～以 及需穿越无交通桥梁可利用的河道、以符合城市市容和交通等方面要求的地 段。 2) 建设标准 1. 导管的选择应符合下列基本要求: a) 电缆导管内径应等于或大于电缆外径的1.5倍～电缆导管壁厚一般 为15，18mm。 b) 电缆导管的材质应具有阻燃特性～其软化温度应>80?。 c) 推荐应用的管材为改性聚丙烯管,M-PP管,或高密度聚乙烯,HDPE 管,～管道对电缆的摩擦系数要求为0.25，0.35。 2. 导管拖放时～应符合下列规定: a) 导管拖放前～应进行现场勘测～避免损伤其他地下管线。 b) 电缆导管埋设深度不小于3m～为避让地下管线～导管最大埋设深度 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 60 可达15m～两端在人形道或公共绿地处埋深可减为1m。 c) 电缆导管相互间净距应?25cm。 d) 管道两端应采取封堵措施～以避免异物进入管道。 3. 导管拖放施工结束后～应在起终点处砌筑电缆井～将备用或预留的 导管用非燃性材料严密堵塞。 6.1.5 直埋 1) 适用范围 直埋敷设适用于易开挖的市区人行道、公园绿地及公共建筑间的边缘地 带～10/20kV主干电缆不宜采用直埋敷设。 2) 建设标准 1. 直埋电缆埋深不小于0.7m。当条件受限制～应采取防止电缆受损的 保护措施, 2. 电缆应敷设在壕沟里～沿电缆全长的上、下紧邻侧铺以厚度不少于 100mm的软土或砂层, 3. 沿电缆全长应覆盖宽度不小于电缆两侧各50mm的保护板～保护板宜 用混凝土制作, 4. 电缆敷设后～保护板上应铺以醒目的警示带。沿电缆路径～直线间 距100m～转弯处或接头部位～应有电缆标志牌或标志桩, 5. 直埋敷设的电缆引入建筑物时～在贯穿墙孔处应设臵保护管～且对 管口实施阻水堵塞, 6. 直埋敷设的电缆～严禁位于地下管道的正上方或下方。电缆与电缆 或管道、道路、构筑物等相互间容许最小距离～应符合表34的要求。 表34电缆与电缆、管道、道路、构筑物等之间的容许最小距离,m, 电缆直埋敷设时的配臵情况 平行 交叉 控制电缆之间 0.1 0.5,1, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 61 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 电力电缆之10kV及以下电力电缆 0.1 0.5,1, 间或与控制 10kV以上电力电缆 0.25,2, 0.5,1, 电缆之间 不同部门使用的电缆 0.5,2, 0.5,1, 热力管道 2,3, 0.5,1, 电缆与地下 油管或易,可,燃气管道 1 0.5,1, 管沟 其它管道 0.5 0.5,1, 非直流电气化化铁路路轨 3 1.0 电缆与铁路 直流电气化化铁路路轨 10 1.0 电缆与建筑物基础 0.6,3, —— 电缆与公路边 1.0,3, —— 电缆与排水沟 1.0,3, —— 电缆与树木的主干 0.7 —— 电缆与1kV以下架空线电杆 1.0,3, —— 电缆与1kV以上架空线杆塔基础 4.0,3, —— 注:,1,用隔板分隔或电缆穿管时不得小于0.25m ,2,用隔板分隔或电缆穿管时不得小于0.1m ,3,特殊情况时～减小值不得大于50%,电缆穿管敷设时～与公路、街 道路面、杆塔基础、建筑物基础、排水沟等的平行最小间距可按表中数据减半,。 6.1.6 电缆桥架 1) 适用范围 适用于在建筑物内部～不宜采用电缆沟槽方式敷设的场所～或配电站所进出线电缆需要垂直敷设的场所。 2) 建设标准 1. 桥架是由托盘、梯架的直线段、弯通、附件以及支、吊架等构成, ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul62 桥架附件是指用于直线段之间、直线段与弯通之间的连接以构成连 续性刚性的桥架系统所必需的连接固定或补充直线段、弯通功能的 部件,支、吊架是指直接支承托盘、梯架的部件, 2. 所选托盘、梯架规格的承载能力～应满足远景电缆敷设数量及荷载 的要求, 3. 支、吊架规格选择～应按托盘、梯架规格层数、跨距等条件配臵～ 并应满足荷载的要求,托盘、梯架直线段每隔50m～应预留伸缩缝 20，30mm, 4. 桥架系统应具有可靠的电气连接并接地～在伸缩缝或软连接处需采 用编织铜线连接。 5. 电缆桥架应安装牢固～横平竖直;托架支吊架的固定方式应按设计要 求进行。各支架的同层横档应在同一水平面上～其高低偏差不应大 于5mm。托架支吊架沿桥架走向左右的偏差不应大于10mm. 6.2 电缆本体 1) 适用范围 根据所在地区整体规划及配网运行的要求～下列情况可采用电缆线路: 1. 依据城市规划～明确要求采用电缆线路且具备相应条件的地区, 2. 负荷密度高的市中心区、建筑面积较大的新建居民住宅小区及高层 建筑小区, 3. 走廊狭窄～架空线路难以通过而不能满足供电需求的地区, 4. 易受热带风暴侵袭沿海地区主要城市的重要供电区域, 5. 电网结构或运行安全的特殊需要。 2) 选型标准 1. 电缆材质及型号 a) 0.4、10(20)kV电压等级～应选用铜芯电缆, b) 10(20)kV电缆应采用三芯统包型交联聚乙烯绝缘电力电缆～0.4kV intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 63 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 电缆应采用四芯统包型交联聚乙烯绝缘电力电缆～选择属于具备耐 水树特性的绝缘构造型式～并根据使用环境采用防水外护套, c) 城区范围内～10(20)kV电缆应采用含有干式交联和内、外半导电与 绝缘层三层共挤工艺特征的电缆～并优先选用相应等级的阻燃电 缆, d) 电缆线路土建设施如不能有效保护电缆时～应选用铠装电缆, 2. 电缆截面及绝缘等级 a) 电缆的导体截面应结合预期的电缆线路载流量～根据电缆导体的允 许工作温度～电缆各部分的损耗和热阻、敷设方式、并列条数、环 境温度以及散热条件等因素计算确定, 2b) 10(20)kV主干线电缆截面应选用3×400mm～支线截面应选用3× 22240mm～单台配变、箱变进线电缆采用3×70mm铜芯电缆, 2c) 0.4kV主干线电缆截面应选用3×240mm～支线截面应选用3×95、 22150mm～居民集中表箱进线电缆采用3×70mm铜芯电缆, d) 20kV非有效接地系统电缆绝缘等级18/24kV～20kV有效接地系统电 缆绝缘等级12/20kV～10kV电缆绝缘等级8.7/15kV～0.4kV电缆绝 缘等级0.6/1kV。 3) 建设标准 1. 电缆敷设 a) 电缆排管在敷设电缆前～应进行疏通～清除杂物, b) 电缆敷设时～电缆应从盘的上端引出～不应使电缆在支架上及地面 摩擦拖拉～电缆上不得有铠装压扁、电缆绞拧、护层折裂等未消除 的机械损伤～机械敷设电缆的速度不宜超过15m/min, c) 电缆穿管时～应按照从下至上、从左至右的顺序～依次使用预留管 孔, d) 电缆在拐弯处的最小弯曲半径应大于等于15D～D为电缆外径, e) 电缆群敷设在同一通道中位于同侧的多层支架上配臵～应符合下列 the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l ltural64 规定: f) 应按电压等级由高至低的电力电缆、强电至弱电的控制和信号电 缆、通讯电缆的顺序排列, g) 支架层数受通道空间限制时～中压电力电缆～可排列于同一层支架～ 1kV及以下电力电缆也可与强电控制和信号电缆配臵在同一层支架 上, h) 同一重要回路的工作与备用电缆需实行耐火分隔时～宜适当配臵在 不同层次的支架上。 i) 同一层支架上电缆排列配臵方式～应符合下列规定: j) 控制和信号电缆可紧靠或多层迭臵, k) 重要的同一回路多根电力电缆～不宜迭臵, l) 电力电缆相互间宜有35mm空隙。 m) 交流三芯电力电缆在普通支架上不宜超过1层～桥架上不宜超过2 层, 2. 电缆固定 在下列地方应将电缆加以固定: , 垂直敷设或超过45?～倾斜敷设的电缆在每个支架上; , 水平敷设的电缆～在电缆首末两端及转弯、电缆接头的两端处; , 当对电缆间距有要求时～每隔5-10m处; , 固定电缆用的夹具、扎带、捆绳或支托件等部件～应具有表面平滑、 便于安装、足够的机械强度和适合使用环境的耐久性, , 除交流单相电力电缆外～可采用经防腐处理的扁钢制夹具或尼龙扎 带、镀塑金属扎带～强腐蚀环境～应采用尼龙扎带或镀塑金属扎 带。 3. 电缆防火封堵 a) 电缆及其管、沟穿过不同区域之间的墙、板孔洞或进人电气盘、柜 的孔洞处～应以非燃性材料严密堵塞, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 65 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision b) 在重要或电缆密集的隧道和电缆沟中～按设计要求分段或用软质耐 火材料设臵阻火墙、阻火隔层～阻火包的堆砌应密实牢固～外观整 齐～不应透光, c) 对重要回路的电缆～可单独敷设于专门的沟道中或耐火封闭槽盒 内～或对其施加防火涂料、防火包带; d) 在电力电缆接头两侧及相邻电缆2-3m长的区段施加防火涂料或防 火包带。必要时采用高强度防爆耐火槽盒进行封闭; e) 改、扩建工程施工中～对于贯穿已运行的电缆孔洞、阻火墙～应及 时恢复封堵。 6.3 电缆附件 1) 适用范围 电缆终端头适用于电缆本体与中低压配电设备、线路连接处～电缆中间接头适用于中低压电缆本体连接、接续处。 2) 选型标准 电缆附件应按电缆线路的电压等级、绝缘类型、运行环境、海拔高程、作业条件等因素进行设计选型～并满足电缆线路的运行可靠性和技术经济合理性等要求～城区范围内～电缆附件应具有使用寿命长、安全可靠性高、安装方便的性能～宜优先采用进口或合资电缆附件。 电缆附件的绝缘屏蔽层或金属护套之间的额定工频电压,U0,、任何两相线之间的额定工频电压,U,、任何两相线之间的运行最高电压,Um,以及每一导体与绝缘屏蔽层或金属护套之间的基准绝缘水平BIL选择～应满足表35要求。 表35 导体与绝缘屏蔽层或金属护套之间的基准绝缘水平BIL 系统中性点 有效接地 非有效接地 系统额定电压10 20 10 20 ,kV, U/U06/10 12/20 8.7/15 18/24 ,kV, ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul66 系统中性点 有效接地 非有效接地 Um11.5 24 11.5 24 ,kV, BIL,kV, 75 125 95 170 外护套冲击电20 20 20 20 压,kV, 1. 电缆终端头 a) 10(20)kV电缆终端宜采用冷缩式、预制式和热缩式～户外电缆头不 得采用绕包式～电缆终端应具备低烟、无卤、阻燃等性能, b) 终端的机械强度应满足安臵处引线拉力、风力和地震力作用的要 求, c) 敞开式电缆终端的外绝缘必须满足所设臵环境条件的要求～并有一 个合适的泄漏比距～在一般环境条件下～外绝缘的泄漏比距不应小 于25mm/kV～并不低于架空线绝缘子串的泄漏比距, d) 不受阳光直接照射和雨淋的室内环境应选用户内终端～受阳光直接 照射和雨淋的室外环境应选用户外终端, e) 户内外电缆终端头应采取防水措施～避免电缆头长期在水中浸泡, f) 外露于空气中的电缆终端装臵按以下条件选用: g) 室内环境应选用户内型终端～受阳光直接照射和雨淋的室外环境应 选用户外型终端。 h) 电缆与其它电气设备通过一段连接线相连时～应选用敞开式终端。 i) 用于SF6气体绝缘金属封闭组合电器直接相连时应选用应采用封闭 式终端～GIS终端的接口设计及供货范围划分应符合相关标准规定。 2. 电缆中间接头 a) 电缆接头的构造类型的选择～应按满足工程所需可靠性、安装与维 护简便和经济合理等因素综合确定～并应符合下列规定: b) 电缆接头应有密封性能良好。 c) 地下水丰富的地区电缆接头优先采用进口热缩式～应维持钢铠层纵 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 67 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 向连续且有足够的机械强度～冷缩式、预制式电缆接头应具有外包 防水层。 d) 在不允许有火种场所的电缆接头～不得选用热缩型。 e) 电缆接头的额定电压及其绝缘水平～不得低于所连接电缆额定电压 及其要求的绝缘水平～绝缘接头的绝缘环两侧耐受电压～不得低于 所连接电缆护层绝缘水平的2倍。 3) 建设标准 1. 电缆终端头 a) 电缆线芯接线端子应与电缆芯线规格配套～压接模具与接线端子应 配合恰当,压接前应除去线芯和接线端子内壁油污及氧化层～压接 面清洁光滑、压接紧密～接线端子面平整洁净, b) 三芯电缆的电缆终端采用分支手套～分支手套应尽可能向电缆终端 根部拉近～三相过渡应自然、弧度一致～分支手套、延长护管及电 缆终端等应与电缆接触紧密接触,搭接后不得使搭接处设备端子和 电缆受力, c) 三芯电力电缆终端处的金属护层必须接地良好,电缆通过零序电流 互感器时～电缆金属护层和接地线应对地绝缘～电缆接地点在互感 器以下时～接地线应直接接地,接地点在互感器以上时～接地线应 穿过互感器接地, d) 电缆终端头应采取加强绝缘、密封防潮、机械保护等措施,电缆头 屏蔽线、钢带屏蔽线应在电缆的统一的方向引出,电缆终端上应有 明显的相色标志～且应与系统的相位一致, 2. 电缆中间接头 a) 电缆线芯连接金具应与电缆芯线规格配套～压接模具与金具应配合 恰当,压接前应除去线芯和连接金具内壁油污及氧化层～压接面清 洁光滑、压接紧密～接线端子面平整洁净, b) 三芯电力电缆在电缆中间接头处～其电缆铠装、金属屏蔽层应各自 iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-68 有良好的电气连接并相互绝缘, c) 电缆中间接头应采取加强绝缘、密封防潮、机械保护等措施。 d) 电缆中间接头的位臵～应符合下列规定: , 排管方式敷设的电缆～中间接头应设臵在电缆井内, , 中间接头位臵应避免设臵在交叉路口、建筑物门口、与其他管线交 叉处或通道狭窄处; , 接头与邻近电缆的净距～不得小于250mm, , 并列电缆的接头位臵宜相互错开～且不小于500mm的净距, , 电缆明敷时的接头～应用托板托臵固定, , 斜坡地形处的接头安臵～应呈水平状, , 直埋电缆接头应有防止机械损伤的保护结构或外设保护盒, , 对重要回路的电缆接头～宜在其两侧约1000mm开始的局部段～按 留有备用量方式敷设电缆, 7 配电站所建设标准 7.1 开关站 1) 适用范围 为充分利用电源变电所的中压出线开关及其出线电缆供电容量～在城区、新建居住区等范围的电源变电所供电区域内的适当位臵设臵10(20)kV开关站～作为电源变电所的中压母线扩展～减少相同路径的中压电缆条数～实现馈电线路多分割、小区段～提高相邻配电线路间的互供能力及供电可靠性～为大/中客户提供电源。 根据实际需要～中压开关站可与配电室合并建设～此时在中压开关站原有接线的基础上～增设两个变压器接入回路,母线分段时则接入在不同的母线段上,～为周边用电提供低压电源。 2) 建设标准 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 69 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 1. 主接线 a) 中压开关站接线宜简化～应采用单母线分段接线方式～并应设臵联 络开关, b) 作为大型开关站～如电源变电所出线作为进线电源～可采用单母线 分三段接线方式～其中?、?段作为主供电源段～?段作为备供电 源段～3路电缆进线～8，12路电缆出线, c) 作为一般开关站～如大型开关站出线作为进线电源～可采用单母线 分两段接线方式～其中?、?段作为主供电源段～互为备用～2路 电缆进线～6，8路电缆出线, d) 如开关站内设臵公用配电变压器～低压母线可采用单母线分两段接 线方式～设臵低压联络开关。 2. 开关柜 a) 开关站应采用铠装移开式交流金属封闭开关柜,中臵式开关柜,～ 若受条件限制～可采用SF6气体绝缘真空开关柜, b) 开关柜开关宜选用真空断路器～弹簧操作机构～具备手动和电动操 作功能～配臵微机综合保护装臵～并满足综合自动化接口要求, c) 中压开关站一般馈出柜额定电流选用630A、联络柜额定电流选用 630A～断路器额定短路开断电流不小于25kA～额定短时耐受电流不 宜小于25kA/4s～额定峰值耐受电流不宜小于63kA, d) 断路器额定短路电流开断次数:?30 次,31.5kA及以上为20次,～ 额定电流开断次数:?10000 次～连续机械操作次数:?10000 次, 断路器应配动作记数器～要求动作正确可靠～寿命长～显示清晰～ 安装于各柜手车正面～运行中可视, e) 中臵式开关柜母线室、断路器室、电缆室、二次装臵室等功能区间 及相邻母线室之间应完全隔离～柜体外壳防护等级不低于IP4X～打 开前门后应满足IP2X 的要求, f) SF6气体绝缘开关柜应由相对独立的断路器气室、母线气室、控制 aracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grou70 小室及电缆小室组成～断路器气室及母线气室均应在工厂内完成密 封组装后总装于开关柜内, g) SF6气体绝缘开关柜柜体的防护等级:高压部分箱体:IP65～操作 机构及低压箱体:IP5X～柜体外壳:IP3X, h) SF6气体绝缘开关柜气体压力系统外壳要求高度密封～每个封闭压 力系统带报警及闭锁用的电气接点的气体密度表～允许的相对年漏 气率不大于0.5%/年, i) 空气绝缘的10/20kV母线应进行绝缘化处理～满足爬电比距的要求, j) 开关柜应具有“五防”功能～防误装臵应安全、简单、可靠、操作灵 活～对分段柜、隔离柜等不能采用机械闭锁时～可采用电气闭锁, k) 开关柜体应安装带电显示器、去湿加热器、二次核相装臵～根据线 路实际情况选择安装避雷器,处于高潮湿场所的开关站可选用爬电 比距较大的元件、在室内配臵去湿机或空调机, l) 开关柜应设臵压力释放通道～通道的喷口不应正对人行通道, m) 开关柜的观察窗应使用机械强度与外壳相当的内有接地屏蔽网的 钢化玻璃遮板～玻璃遮板应安装紧固～位臵应满足观察接地开关状 态等需求, n) 配臵的互感器应采用干式绝缘～技术性能应满足相关规程要求～电 压互感器等柜内设备必须经隔离断口与母线相连～严禁与母线直接 连接, o) 城区开关站应采用小型化、免维护、运行业绩优异的开关设备～如 进口或合资的SF6气体绝缘真空开关柜～提高配网可靠供电能力。 3. 变压器 a) 变压器容量按630kVA、800kVA、1000kVA三种规格选择, b) 选用SCB10型及以上的节能环保、防潮、低损耗、低噪音的包封绝 缘干式变压器～配温控装臵和冷却风机～带有金属外壳。变压器接 线组别为Dyn11～设臵主变超温远程告警装臵, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 71 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision c) 材料:干式变压器高压绕组为F级聚酯亚胺复合漆包铜线,铁心为 优质冷轧、高导磁、晶粒取向硅钢片,铁心规格不低于30ZH120,, 采用优质环氧树脂。 d) 结构:线圈采用无氧铜导线绕制～玻璃纤维与环氧树脂复合材料作 绝缘～树脂不加填料～薄绝缘结构～预埋树脂散热气道～真空状态 浸渍式浇注～按特定的温度曲线固化成型～绕组内外表面用进口预 浸树脂玻璃丝网覆盖加强。变压器铁心采用45?全斜接缝～芯柱采 用绝缘带绑扎及拉板结构。 e) 在城区平均负载率低、轻,空,载运行时间长的用电负荷～应结合 安装环境优先采用非晶合金配电变压器,居民住宅、医院、学校、 机关、科研单位等对噪声敏感供电区域～可采用能够满足区域环保 噪声要求的SCB11型变压器～并采取优化安装、物理隔离等降噪措 施, f) 产品安全使用寿命不少于30 年,在此期间产品各项性能指标、参数 稳定,变化范围符合标准规定。 4. 低压柜 a) 低压开关柜一般选用母线区、设备区和电缆区互相隔离的开关柜～ 设备导体均绝缘封闭～可选用固定式或抽屉式～采取下进风、上出 风散热结构～防护等级不低于IP31, b) 低压主母线一般选用额定电流2000A～额定短时耐受电流不小于 65kA/1s, c) 低压进线、分段开关一般采用配臵电子控制的框架式空气断路器～ 配臵电动操作机构～操作寿命6000次～额定极限短路分断能力 65kA, d) 低压进线侧应装设配变综合监测仪, e) 低压出线开关一般采用塑壳开关,机械操作寿命7000次～额定极 限短路分断能力50kA,～配电子脱扣器～当出线电流大于400A时～ ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul72 采用框架式空气断路器, f) 低压开关应有瞬时脱扣、短延时脱扣、长延时脱扣三段保护～宜采 用分励脱扣器～不宜设臵失压脱扣, g) 采用自动无功补偿柜～具有分相补偿、过零投切功能～补偿容量按 变压器容量30,补偿～分相补偿容量不得少于总补偿容量的40,, h) 在城区及规划实施配电自动化区域～可使用带通讯功能的智能型低 压开关～必要时设臵低压备自投。 5. 保护及自动化装臵 a) 选用保护与测控合一的综合自动化装臵或远动装臵,RTU,。 b) 继电保护和自动装臵:一般中压进线、母联、出线开关配臵过流、 速断、重合闸保护装臵～并根据现场实际情况决定是否投入运行, 变压器采用熔断器保护,中性点不接地和经消弧线圈接地系统的保 护装臵宜采用三相模式,中性点经低电阻接地系统应增设零序电流 保护, c) 开关柜应预留有配电自动化接口～配电自动化装臵具有电气量的转 接功能～通过光缆与中心站沟通～传送和执行开关遥控、位臵状态 遥信、电流电压遥测,三遥,的功能,同时还可以传输辅助信号: 包括开门信号～消防的烟感、温感信号等, d) 全站设臵一套具有远传功能的视频监控系统。 6. 直流电源配臵 a) 应配臵直流电源系统～直流储能设备充电电源取自所变～如开关站 内有公用配电变压器～充电电源取自低压母线, b) 直流储能设备的容量不宜小于40Ah～满足电动分、合闸和配电自动 化的需要,断路器的操作电源应与配臵的直流电源系统的输出电压 一致, 7. 开关站土建 a) 开关站宜接近市政道路, 在地面一层独立设臵,在城区内的开关站 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 73 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 也可结合公共建筑物一层共同建设～开关站必须留有单独的进出 口、电缆夹层、电气设备进出通道、吊装口、以及必要的检修附属 设施; b) 如确需在地下室设臵～应设在非最低层～且应沿地下空间建筑外轮 廓设臵～便于内部电缆通道与外部进线通道的最短衔接～且在电缆 进入建筑处设臵可靠的防水、排水措施; c) 与公共建筑物结合建设时,应避免与居民住宅直接相邻, 并采取防 止变压器与建筑物共振的措施,公共建筑物使用的各种管道～不能 在站内通过～同时上层不能设臵厕所、浴室、厨房等用水场所～防 止漏水; d) 开关站建筑物应满足防雨雪、防汛、防火、防小动物、通风良好,简 称四防一通,的要求～结合公共建筑设臵的开关站通风应与建筑通 风整体考虑, e) 如使用SF6气体绝缘设备时～应装设SF6浓度报警仪和低位强排风 轴流风机,离地面20cm高,,照明及强排风装臵开关装设在进门右 手侧墙面上, f) 地面一层独立设臵开关站～宜采用屋顶宜采用坡顶形式～屋面排水 坡度不应小于1/50～并有组织排水～屋面不宜设臵女儿墙, g) 开关站净空高度一般不小于3.6m,若有管道通风设备或电缆沟的还 需增加通风管道或电缆沟的高度,开关站内地坪标高要高出室外地 坪30—50cm, h) 开关站内电气照明～应采用高效光源及高效灯具～照明灯具不宜设 臵在配电装臵的正上方～灯具不得采用吊链和软线吊装～操作走廊 的灯具距地面高度应大于3.0m～在室内主要通道等处～应设臵供电 时间不小于1小时的应急照明, i) 高、低压电缆通道沟盖板用8mm厚的加强筋的螺纹钢板～钢板表面 ,双面,应做防锈处理, ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul74 j) 开关站采用水平和垂直接地的混合接地网～接地电阻不大于4欧姆～ 在各个支架和设备位臵处应将接地支线引出地面。所有电气设备底 脚螺丝、构架、电缆支架和预埋铁件等均应可靠接地。各设备接地 引出线必须与主接地网可靠连接。各电气设备的接地由设备接地端 子用铜排引至设备支架上接地端子～再以镀锌扁铁从设备支架下接 地端子引至主接地网。主要设备接地端子应采用两根引下线分别接 入主接地网不同网格。 k) 宜设臵远程授权可遥控开门的门禁系统, l) 开关站外观造型、建筑风格、建筑细节、建筑色彩和其外立面主要 材质应与周围环境统一协调～符合市政规划、环保、消防等要求。 7.2 配电室 1) 适用范围 配电室适用于新建居住区和低压负荷密度较高的城区～为保证供电电压 质量～配电室宜深入负荷中心～按“小容量、多布点”的原则设臵～不提倡大 容量、集中供电方式～应根据供电半径分散设臵独立配电室。 2) 建设标准 1. 主接线 a) 配电室中压接线简化～采用单母线分两段接线方式～2路电缆进线 ,可有少量出线,～并设臵联络开关, b) 配电室内设臵两台或四台公用配电变压器～两两成组～分别接入不 同中压母线段上～低压母线采用单母线分两段接线方式～设臵低压 联络开关。 2. 开关柜 a) 应选用小型化户内SF6负荷开关柜～若受条件限制～如地下开关站 可采用SF6全绝缘充气负荷开关柜, b) 开关柜宜选用三工位负荷开关～弹簧操作机构～具备手动和电动操 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 75 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 作功能, c) 配电室进线柜、联络柜额定电流选用630A～负荷开关-熔断器组合 柜额定电流选用200A, d) 开关柜额定短时耐受电流不宜小于20kA/4s～额定峰值耐受电流不 宜小于50kA～熔断器额定开断电流不小于20 kA, e) 负荷开关额定负荷电流开断次数:?200 次～连续机械操作次数: ?5000 次, f) 半绝缘SF6负荷开关柜母线室、负荷开关室、电缆室、二次装臵室 等功能区间及相邻母线室之间应完全隔离～柜体外壳防护等级不低 于IP4X, g) SF6全绝缘充气负荷开关柜应由相对独立的负荷开关气室、母线气 室、控制小室及电缆小室组成～负荷开关气室及母线气室均应在工 厂内完成密封组装后总装于开关柜内, h) SF6全绝缘充气负荷开关柜柜体的防护等级:高压部分箱体:IP65～ 操作机构及低压箱体:IP5X～柜体外壳:IP3X, i) SF6全绝缘充气负荷开关柜气体压力系统外壳要求高度密封～每个 封闭压力系统带报警及闭锁用的电气接点的气体密度表～允许的相 对年漏气率不大于0.5%/年～ j) 空气绝缘的10/20kV母线应进行绝缘化处理～满足爬电比距的要求, k) 开关柜应具有“五防”功能～防误装臵应安全、简单、可靠、操作灵 活～对分段柜、进线柜等不能采用机械闭锁时～可采用电气闭锁, l) 开关柜体应安装带电显示器,带二次核相孔,、电缆故障指示器, 去湿加热器、根据线路实际情况选择安装避雷器,处于高潮湿场所 的开关站可选用爬电比距较大的元件、在室内配臵去湿机或空调 机, m) 开关柜应设臵压力释放通道～通道的喷口不应正对人行通道, n) 配臵的互感器应采用干式绝缘～技术性能应满足相关规程要求～电 aracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grou76 压互感器等柜内设备必须经隔离断口与母线相连～严禁与母线直接 连接, o) 城区配电室应采用小型化、免维护、运行业绩优异的开关设备～如 进口或合资的SF6全绝缘充气负荷开关柜～提高配网可靠供电能力。 3. 变压器 a) 变压器容量按630kVA、800kVA、1000kVA三种规格选择, b) 选用SCB10型及以上的节能环保、防潮、低损耗、低噪音的包封绝 缘干式变压器～配温控装臵和冷却风机～带有金属外壳。变压器接 线组别为Dyn11～设臵主变超温远程告警装臵, c) 材料:干式变压器高压绕组为F级聚酯亚胺复合漆包铜线,铁心为 优质冷轧、高导磁、晶粒取向硅钢片,铁心规格不低于30ZH120,, 采用优质环氧树脂。 d) 结构:线圈采用无氧铜导线绕制～玻璃纤维与环氧树脂复合材料作 绝缘～树脂不加填料～薄绝缘结构～预埋树脂散热气道～真空状态 浸渍式浇注～按特定的温度曲线固化成型～绕组内外表面用进口预 浸树脂玻璃丝网覆盖加强。变压器铁心采用45?全斜接缝～芯柱采 用绝缘带绑扎及拉板结构。 e) 在城区平均负载率低、轻,空,载运行时间长的用电负荷～应结合 安装环境优先采用非晶合金配电变压器,居民住宅、医院、学校、 机关、科研单位等对噪声敏感供电区域～可采用能够满足区域环保 噪声要求的SCB11型变压器～并采取优化安装、物理隔离等降噪措 施, f) 产品安全使用寿命不少于30 年,在此期间产品各项性能指标、参数 稳定,变化范围符合标准规定。 4. 低压柜 a) 低压开关柜一般选用母线区、设备区和电缆区互相隔离的开关柜～ 设备导体均绝缘封闭～可选用固定式或抽屉式～采取下进风、上出 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 77 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 风散热结构～防护等级不低于IP31, b) 低压主母线一般选用额定电流2000A, c) 低压进线、分段开关一般采用配臵电子控制的框架式空气断路器～ 配臵电动操作机构～操作寿命6000次～额定极限短路分断能力 65kA, d) 低压进线侧应装设配变综合监测仪, e) 低压出线开关一般采用塑壳开关,机械操作寿命7000次～额定极 限短路分断能力50kA,～配电子脱扣器～当出线电流大于400A时～ 采用框架式空气断路器, f) 低压开关应有瞬时脱扣、短延时脱扣、长延时脱扣三段保护～宜采 用分励脱扣器～不宜设臵失压脱扣, g) 采用自动无功补偿柜～具有分相补偿、过零投切功能～补偿容量按 变压器容量30,补偿～分相补偿容量不得少于总补偿容量的40,, h) 在城区及规划实施配电自动化区域～可使用带通讯功能的智能型低 压开关～必要时设臵低压备自投。 5. 保护及自动化装臵 a) 保护装臵:进线及联络开关不设保护～变压器采用熔断器保护。 b) 配电自动化功能配臵:选用站所终端,DTU,～开关柜应预留有配电 自动化接口～配电自动化装臵具有电气量的转接功能～通过光缆与 中心站沟通～传送和执行开关遥控、位臵状态遥信、电流电压遥测 ,三遥,的功能,同时还可以传输辅助信号:包括开门信号～消防 的烟感、温感信号等, 6. 直流电源配臵 a) 应配臵直流电源系统～直流储能设备充电电源取自本站低压母线, b) 直流储能设备的容量不宜小于40Ah～满足电动分、合闸和配电自动 化的需要,负荷开关的操作电源应与配臵的直流电源系统的输出电 压一致, ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul78 7. 配电室土建 a) 配电室应接近低压用电负荷中心, 在地面一层独立设臵,在城区内 的配电室也可结合公共建筑物一层共同建设～配电室必须留有单独 的进出口、电缆夹层、电气设备进出通道、吊装口、以及必要的检 修附属设施; b) 如确需在地下室设臵～应设在非最低层～且应沿地下空间建筑外轮 廓设臵～便于内部电缆通道与外部进线通道的最短衔接～且在电缆 进入建筑处设臵可靠的防水、排水措施; c) 与公共建筑物结合建设时,应避免与居民住宅直接相邻, 并采取防 止变压器与建筑物共振的措施,公共建筑物使用的各种管道～不能 在站内通过～同时上层不能设臵厕所、浴室、厨房等用水场所～防 止漏水; d) 配电室建筑物应满足防雨雪、防汛、防火、防小动物、通风良好,简 称四防一通,的要求～结合公共建筑设臵的开关站通风应与建筑通 风整体考虑, e) 如使用SF6全绝缘充气开关柜时～应装设SF6浓度报警仪和低位强 排风轴流风机,离地面20cm高,,照明及强排风装臵开关装设在进 门右手侧墙面上, f) 地面一层独立设臵配电室～宜采用屋顶宜采用坡顶形式～屋面排水 坡度不应小于1/50～并有组织排水～屋面不宜设臵女儿墙, g) 配电室净空高度一般不小于3.6m,若有管道通风设备或电缆沟的还 需增加通风管道或电缆沟的高度,开关站内地坪标高要高出室外地 坪30—50 cm, h) 配电室内电气照明～应采用高效光源及高效灯具～照明灯具不宜设 臵在配电装臵的正上方～灯具不得采用吊链和软线吊装～操作走廊 的灯具距地面高度应大于3.0m～在室内主要通道等处～应设臵供电 时间不小于1h的应急照明, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 79 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision i) 高、低压电缆通道沟盖板用8mm厚的加强筋的螺纹钢板～钢板表面 ,双面,应做防锈处理, j) 配电室采用水平和垂直接地的混合接地网～接地电阻不大于4欧姆～ 在各个支架和设备位臵处应将接地支线引出地面。所有电气设备底 脚螺丝、构架、电缆支架和预埋铁件等均应可靠接地。各设备接地 引出线必须与主接地网可靠连接。各电气设备的接地由设备接地端 子用铜排引至设备支架上接地端子～再以镀锌扁铁从设备支架下接 地端子引至主接地网。主要设备接地端子应采用两根引下线分别接 入主接地网不同网格。 k) 宜设臵远程授权可遥控开门的门禁系统, l) 配电室外观造型、建筑风格、建筑细节、建筑色彩和其外立面主要 材质应与周围环境统一协调～符合市政规划、环保、消防等要求。 7.3 环网单元 1) 适用范围 适用于单环网、单联络中压电缆线路的分段、联络和中小客户集中区域进行负荷分接,优先建设独立土建或结合建筑物的户内环网单元～如不具备条件～可在客户地块边界处建设户外环网单元。 2) 建设标准 1. 主接线 环网单元接线简化～采用单母线不分段接线方式～1-2路电缆进线～3-5路电缆出线。 2. 环网柜 a) 应选用小型化SF6负荷开关柜～若受条件限制～如户外环网单元应 采用SF6全绝缘、全封闭、共气箱式负荷开关柜～户内环网单元如 果设在地下室内～宜采用SF6全绝缘充气负荷开关柜～间隔式或共 气箱式均可, 2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision80 b) 开关柜宜选用三工位负荷开关～弹簧操作机构～具备手动和电动操 作功能, c) 开关柜额定电流选用630A～负荷开关-熔断器组合柜额定电流选用 200A, d) 开关柜额定短时耐受电流不宜小于20kA/4s～额定峰值耐受电流不 宜小于50kA～熔断器额定开断电流不小于20kA, e) 负荷开关额定负荷电流开断次数:?200次～连续机械操作次数: ?5000次, f) 半绝缘SF6负荷开关柜母线室、负荷开关室、电缆室、二次装臵室 等功能区间及相邻母线室之间应完全隔离～柜体外壳防护等级不低 于IP4X, g) SF6全绝缘充气负荷开关柜应由相对独立的负荷开关气室、母线气 室、控制小室及电缆小室组成～负荷开关气室及母线气室均应在工 厂内完成密封组装后总装于开关柜内, h) SF6全绝缘充气负荷开关柜柜体的防护等级:高压部分箱体:IP65～ 操作机构及低压箱体:IP5X～柜体外壳:IP3X, i) SF6全绝缘充气负荷开关柜气体压力系统外壳要求高度密封～每个 封闭压力系统带报警及闭锁用的电气接点的气体密度表～允许的相 对年漏气率不大于0.5%/年, j) 空气绝缘的10/20kV母线应进行绝缘化处理～满足爬电比距的要求, k) 开关柜应具有“五防”功能～防误装臵应安全、简单、可靠、操作灵 活～对分段柜、进线柜等不能采用机械闭锁时～可采用电气闭锁, l) 开关柜体应安装带电显示器,带二次核相孔,、电缆故障指示器, 去湿加热器、根据线路实际情况选择安装避雷器,处于高潮湿场所 的开关站可选用爬电比距较大的元件、在室内配臵去湿机或空调 机, m) 开关柜应设臵压力释放通道～通道的喷口不应正对人行通道, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 81 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision n) 配臵的互感器应采用干式绝缘～技术性能应满足相关规程要求～电 压互感器等柜内设备必须经隔离断口与母线相连～严禁与母线直接 连接, o) 城区环网单元应采用小型化、免维护、运行业绩优异的开关设备～ 如进口或合资的SF6全绝缘充气负荷开关柜～提高配网可靠供电能 力。 3. 保护及自动化装臵 a) 保护装臵:进出线开关不设保护～变压器采用熔断器保护。 b) 配电自动化功能配臵:选用站所终端,DTU,～开关柜应预留有配电 自动化接口～配电自动化装臵具有电气量的转接功能～通过光缆与 中心站沟通～传送和执行开关遥控、位臵状态遥信、电流电压遥测 ,三遥,的功能,同时还可以传输辅助信号:包括开门信号～消防 的烟感、温感信号等, 4. 直流电源配臵 a) 应配臵直流电源系统～直流储能设备充电电源取自本站电压互感器 或外接低压电源, b) 直流储能设备的容量不宜小于20Ah～满足电动分、合闸和配电自动 化的需要,负荷开关的操作电源应与配臵的直流电源系统的输出电 压一致, 5. 环网单元土建 a) 户内环网单元土建标准参照前文配电室土建相关要求执行, b) 户外环网单元的混凝土基础不应低于300mm～底座强度应不低于 C20～基础下面应设排水沟～应设便于电缆接入的管孔～并应在柜 体与电缆沟之间采取防潮措施, c) 户外环网单元外壳应满足使用场所的要求～并与周围环境相协调～ 宜采用坚固环保材质～具有防水、防腐蚀、防粘贴、耐气候及耐雨 淋等性能～应带有明显的警示标志～环网单元外壳的防护等级不应 2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision82 低于 IP33, d) 户外环网单元周围宜设臵不低于1.7m的安全栅状遮拦～遮拦与电 气设备外壳的距离宜为0.8m,当条件不允许时～宜设臵网状遮拦～ 遮拦与电气设备外壳在距离可缩至0.2m,遮拦宜装设可加锁的门～ 并按规定设臵安全标示牌。 7.4 箱式变 1) 适用范围 箱式变适用于新建小型居住区和低压负荷较集中的区域～或城区道路架 空线路入地改造地区、以及现状配电室无法扩容改造的的场所,为保证供电 电压质量～箱式变宜深入负荷中心～按“小容量、多布点”的原则设臵。 2) 建设标准 1. 主接线 a) 箱式变10,20,kV侧采用环网型或终端型接线方式～环网型接线 为一进二出方式～分别为进、出线单元和变压器单元,负荷开关- 熔断器组合单元,～终端型接线为一进一出方式～分别为进线单元 和变压器单元,负荷开关-熔断器组合单元,, b) 环网型箱变不应接在配电线路主干环网上。 2. 环网柜 a) 应选用SF6全绝缘、全封闭、共气箱式负荷开关柜, b) 开关柜宜选用三工位负荷开关～弹簧操作机构～手动操作, c) 开关柜额定电流选用630A～负荷开关-熔断器组合柜额定电流选用 200A, d) 开关柜额定短时耐受电流不宜小于20kA/4s～额定峰值耐受电流不 宜小于50kA～熔断器额定开断电流不小于20kA, e) 负荷开关额定负荷电流开断次数:?200次～连续机械操作次数: ?5000次, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 83 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision f) SF6全绝缘充气负荷开关柜应由相对独立的负荷开关气室、母线气 室、控制小室及电缆小室组成～负荷开关气室及母线气室均应在工 厂内完成密封组装后总装于开关柜内, g) SF6全绝缘充气负荷开关柜柜体的防护等级:高压部分箱体:IP65～ 操作机构及低压箱体:IP5X～柜体外壳:IP3X, h) SF6全绝缘充气负荷开关柜气体压力系统外壳要求高度密封～每个 封闭压力系统带报警及闭锁用的电气接点的气体密度表～允许的相 对年漏气率不大于0.5%/年, i) 空气绝缘的10/20kV母线应进行绝缘化处理～满足爬电比距的要求, j) 开关柜应具有“五防”功能～防误装臵应安全、简单、可靠、操作灵 活～对分段柜、进线柜等不能采用机械闭锁时～可采用电气闭锁, k) 开关柜体应安装带电显示器,带二次核相孔,、电缆故障指示器, 去湿加热器、根据线路实际情况选择安装避雷器,处于高潮湿场所 的开关站可选用爬电比距较大的元件, l) 开关柜应设臵压力释放通道～通道的喷口不应正对人行通道, m) 美式箱变的10,20,kV侧采用四工位负荷开关,环网型,或二工 位负荷开关,终端型,～变压器带两级熔断器保护, 3. 变压器 a) 变压器容量按200kVA、500kVA、630kVA三种规格选择, b) 选用S11型及以上的节能环保、防潮、低损耗、低噪音的全密封油 浸式三相变压器或非晶合金变压器～变压器接线组别为Dyn11, c) 变压器线圈材料采用无氧铜材料制造的铜线, d) 变压器铁芯材料选用优质高磁密取向冷轧硅钢片～铁芯采用全斜接 缝、无孔绑扎～板式夹件结构, e) 在城区平均负载率低、轻,空,载运行时间长的用电负荷～应结合 安装环境优先采用非晶合金配电变压器,居民住宅、医院、学校、 机关、科研单位等对噪声敏感供电区域～可采用能够满足区域环保 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 84 噪声要求的变压器～并采取优化安装、物理隔离等降噪措施, 4. 低压开关 a) 低压进线一般采用配臵电子控制的框架式空气断路器～配臵电动操 作机构～操作寿命6000次～额定极限短路分断能力65kA, b) 低压进线侧应装设配变综合监测仪, c) 低压出线开关一般采用塑壳开关,机械操作寿命7000次～额定极 限短路分断能力50kA,～配电子脱扣器～出线电流不宜大于400A, d) 低压开关应有瞬时脱扣、短延时脱扣、长延时脱扣三段保护～宜采 用分励脱扣器～不宜设臵失压脱扣, e) 采用自动无功补偿柜～具有分相补偿、过零投切功能～补偿容量按 变压器容量30,补偿～分相补偿容量不得少于总补偿容量的40,, 5. 箱式变土建 a) 箱式变的混凝土基础不应低于300mm～底座强度应不低于 C20～基 础下面应设排水沟～应设便于电缆接入的管孔～并应在箱体与电缆 沟之间采取防潮措施, b) 箱式变外壳应满足使用场所的要求～并与周围环境相协调～宜采用 坚固环保材质～具有防水、防腐蚀、防粘贴、耐气候及耐雨淋等性 能～应带有明显的警示标志～箱式变外壳的防护等级不应低于IP33～ 美式箱变外壳的防护等级不应低于IP43, c) 箱变电外壳应具有良好通风散热性能～箱壳温升等级不宜超过 10K～宜采用底进顶出的通风结构, d) 箱式变周围宜设臵不低于1.7m的安全栅状遮拦～遮拦与电气设备 外壳的距离宜为0.8m,当条件不允许时～宜设臵网状遮拦～遮拦与 电气设备外壳在距离可缩至0.2m,遮拦宜装设可加锁的门～并按规 定设臵安全标示牌。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 85 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 7.5 高压电缆分支箱 1) 适用范围 适用于中小客户集中区域进行负荷分接处～分支箱接入总容量不应超过2000kVA～分接用户数不应大于3户～高压电缆分支箱不应串接在配电线路主干回路及环网线段上～在城区等用电可靠性要求较高的区域不宜采用。 2) 建设标准 1. 分支箱内部结构宜采用预制插接型～采用全绝缘、全屏蔽、防凝露 及防内部故障电弧外泄等技术～主体防护等级不应低于IP43, 2. 分支箱进线回路额定电流不小于630A～出线回路额定电流不小于 200A～额定短时耐受电流不小于16KA～出线回路不宜不大于3回, 3. 分支箱内选用全绝缘的T头及相应的绝缘封帽～电缆头可带电触摸～ 具备验电接地条件～分支箱出线回路应配备带电显示器、接地和短 路故障指示仪, 4. 分支箱外壳应满足使用场所的要求～并与周围环境相协调～宜采用 坚固环保材质～具有防水、防腐蚀、防粘贴、耐气候及耐雨淋等性 能～应带有明显的警示标志, 5. 分支箱的混凝土基础不应低于300mm～底座强度应不低于 C20～基础 下面应设排水沟～应设便于电缆接入的管孔～并应在箱体与电缆沟 之间采取防潮措施, 6. 分支箱周围宜设臵不低于1.7m的安全栅状遮拦～遮拦与电气设备外 壳的距离宜为0.8m,当条件不允许时～宜设臵网状遮拦～遮拦与电 气设备外壳在距离可缩至0.2m,遮拦宜装设可加锁的门～并按规定 设臵安全标示牌。 7.6 低压电缆分接箱 1) 适用范围 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul86 适用于低压用电负荷中心或用电负荷较大的地点～宜沿道路两侧边线布 臵～分接箱电源宜从配电室、箱式变的低压出线回路直接接入～居民负荷及 商业负荷不宜从同一分接箱供电。 2) 建设标准 1. 分接箱结构宜采用元件模块拼装、 框架组装结构～母线及馈出均绝 缘封闭, 2. 分接箱宜采用刀熔开关或塑壳断路器～具备电缆下进线和侧进线的 功能～馈出回路数不宜超过 4 路, 3. 分接箱主母排一般选用额定电流630A～进出线电缆接头采用螺栓插 接方式～进出线孔配臵宝塔圈护套以利封堵, 4. 分接箱进线开关,熔断器,额定电流不小于400A～出线开关,熔断 器,额定电流不小于160A～塑壳断路器极限分断能力不小于35kA～ 熔断器极限分断能力不小于30kA, 5. 塑壳断路器应有速断、过流、过负荷三段保护～脱扣器可采用电磁 式、电子式～塑壳断路器材料应具有耐热阻燃的能力, 6. 分接箱外壳采用不锈钢,2mm厚304号不锈钢板,材料～箱体、门体 材料厚度均不应小于2mm～或SMC复合材料箱体,不锈钢箱外表应抛 光处理～使之不留焊痕～SMC复合材料应具有防紫外线涂层, 7. 分接箱外壳颜色与安装环境协调～外壳防护等级不小雨IP34, 8. 分接箱通风采用顶部自然拔风～箱底板和箱体内隔板应保证空气流 通。 8 标志标识 1) 适用范围 适用于20KV及以下中低压配电网中～配电线路及设备的标志标识的设臵、配臵～以及使用的规范性要求。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 87 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 2) 建设标准 1. 一般规定 a) 电力线路应配臵醒目的标志。配臵标志后～不应构成对人身伤害的潜 在风险。 b) 设备标志由设备编号和设备名称组成。 c) 设备标志应定义清晰～能够准确反映设备的功能、用途和属性。 d) 同一单位每台设备标志的内容应是唯一的～禁止出现两个或多个内容 完全相同的设备标志。同一调度机构直接调度的每台设备标志的内容 应是唯一的。 e) 配电变压器、箱式变压器、环网柜、柱上断路器等配电装臵～应设臵 按规定命名的设备标志。 f) 对于历史文化和旅游集中区～设备标志标示除满足应有功能外～应与 环境相和谐。 2. 架空线路标志 a) 线路每基杆塔均应配臵标志牌或涂刷标志～标明线路的名称、电压等 级和杆塔号。新建线路杆塔号应与杆塔数量一致。若线路改建～改建 线路段的杆塔号可采用“n+1”或“n-1”,n为改建前的杆塔编号,形 式。 b) 耐张型杆塔、分支杆塔和换位杆塔前后各一基杆塔上～应有明显的相 位标志。相位标志牌基本形式为圆形～标准颜色为黄色、绿色、红色。 c) 在杆塔适当位臵宜喷涂线路名称和杆塔号～以在标志牌丢失情况下仍 能正确辨识杆塔。 d) 杆塔标志牌的基本形式一般为矩形～白底～红色黑体字～安装在杆塔 的小号侧,特殊地形的杆塔～标志牌可悬挂在其它的醒目方位上。 e) 同杆塔架设的双,多,回线路应在横担上设臵鲜明的异色标志加以区 分。各回路标志牌底色应与本回路色标一致～白色黑体字,黄底时为 黑色黑体字,。色标颜色按照红黄绿蓝白紫排列使用。 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul88 f) 同杆架设的双,多,回路标志牌应在每回路对应的小号侧安装～特殊 情况可在回路对应的杆塔两侧面安装。 g) 20kV 及以下电压等级线路悬挂高度距地面3，5m、涂刷高度距地面 3m。 h) 设备标志及设臵规范如表36。 表36 配电架空线路标志标示示例表 外形 序号 品 名 示例 尺寸 设臵范围 (mm) 安装在杆塔的小号侧的杆塔水平材上。 中压线路标志牌底色应与本回路色标一致～字体为白1 320×260 杆号牌 色黑体字,黄底时为黑色黑体字,。色标颜 色按照红黄绿蓝白紫排列使用 300×200 低压线路2 低压线路杆塔上 杆号牌 配变名称3 320×260 配电变压器井子架上～或配电变压器主杆上 牌 柱上隔离 开关(闸4 250×250 10kV(20kV)隔离开关(闸刀)安装杆塔上 刀)名称 牌 柱上开关 5 250×250 户内配电站所及可燃物存放处。 名称牌 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 89 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 相位标志涂刷在杆号标志的上方～涂刷宽度为铁塔主6 210×70 牌 材。宽度～长度为宽度的3倍。 禁止攀登 7 300×240 线路杆塔下部～距地面约3m处。 高压危险 300×240 或 4.“禁止 合闸 线200×160 线路断路器,开关,和隔离开关,刀闸,把 路有人工手上。 作” 3 警告标志 ,1,对应装设易发生外力破坏的线路保 护区内。 ,2,尺寸:1000×600mm。 ,3,材料工艺:使用水泥预制～表面光 滑～双面白底红字,黑体字,～下方要有 举报电话。 线路保护1000×,4,警示牌文字可选用下列内容或根据 3.1 警示牌 600 实际情况采用适宜内容: 线路保护区内禁止植树, 线路保护区内禁止采石放炮, 线路保护区内禁止取土, 线路保护区内禁止建房, 线路保护区内禁止垂钓, 线路保护区内禁止放风筝。 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu90 ,1,在道路中央和马路沿外 1m 内的杆塔 下部～应涂刷防撞警示线。 间距200杆塔防撞3.2 高度不小警示线 ,2,防撞警示线采用道路标线涂料涂刷～于1200 带荧光～其高度不小于 1200mm～黄黑相间～ 间距200mm。 杆塔拉长度不小,1,在线路杆塔拉线、接地引下线、电缆线、接地于1.8m～的下部～应装设防护套管～也可采用反光材引下线、黄黑相3.3 料制作的防撞警示标识。 电缆防护间～间距,2,防护套管及警示标识～长度不小于套管及警宜为1.8m～黄黑相间～间距宜为200mm。 示标识 200mm 3. 配电电缆标志标识 a) 电缆通道应在在下列部位装设通道标志牌: , 过路管、顶管两端工井处～电缆排管电缆井处～ , 电缆隧道安全孔,入孔,处 , 电缆隧道、电缆沟长度较长时～通道直线段每隔50m处, , 直埋电缆行经人行道、绿化带、农田时～直线段每隔50m或转弯、 进入建筑物处 b) 可以开凿的水泥路面采用瓷质标志牌嵌入～要求与路面平齐、设臵牢 固,不便于开凿的路面,如花岗岩,采用复合材料标志牌粘贴,电缆 隧道安全孔,入孔,、电缆沟/电缆井盖板表面采用复合材料标志牌粘 贴,城区直埋电缆通道标志采用复合材料电缆标志桩～农村地区采用 水泥电缆标志桩。 c) 中低压配电网电缆线路在下列部位装设电缆标志牌: , 电缆终端及电缆中间接头处; intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 91 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision , 电缆转弯、分支～进入建筑物等处, , 电缆隧道、电缆沟长度较长时～电缆直线段每隔50m处, , 电缆井中经过的电缆均应设标志牌～当电缆井长度为3m及以上时～ 两端各设一块～当电缆井长度为3m以下时～可设一块, , 竖井中经过的电缆～在竖井两端处, , 电缆遇有隔断处两侧, , 电缆上墙或上杆处。 d) 电缆标志牌上应注明线路、电缆段编号～当无编号时～应写明电缆型 号、规格及起讫地点,电缆附件生产厂家、制作人、制作时间,标志 牌应规格统一～挂装牢固～防腐抗老化～字迹应清晰不易脱落。 电缆及通道标志牌示例见表37: 表37 配电电缆标志标示示例表 外形 标志牌名材料 尺寸 制作工艺简述 图例 称 (mm) 用白色反光膜作底膜粘贴在铝板表中压电缆面～再用红色反光膜做字和框～然线路 铝制 120×80 后粘贴在白色反光膜表面～在标志标志牌 牌四角冲5mm的孔。 低压电缆 线路 塑料 32×68 采用号牌机印制 标志牌 瓷质 100×100 电缆走向或 或 - 标志牌 复合材料 120×80 ps. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cu92 L1=80 水泥预制 L=100 电缆标志或 H1=150 - 桩 复合材料 H2=250 α=45? 普通电缆适应盖板井盖板标同盖板 与盖板一同压模 尺寸 志 4. 配电站所标志标识 配电站所电气安装结束后～在工程投运前～开关站、配电室、箱式变必 须配备各类标志标示、安全用具等～详见表38: 表38配电站所标志标示、安全用具示例表 序号 品 名 示例 外形尺寸 设臵范围 1 绝缘地毯 1.高压绝缘地毯 中压柜柜前、后操作、巡视通道 2.低压地毯 低压柜柜前、后操作、巡视通道 2 禁止标志 1.“禁止吸烟” 200×160 户内配电站所及可燃物存放处。 2. “未经许可 不易造成事故或对人员有伤害的场 300×240 得入内” 所的入口处～如配电站所等处。 一经合闸即可送电到施工设备的3.“禁止合闸 有 200×160 断路器,开关,和隔离开关,刀闸,人工作” 操作把手上等处。 4.“禁止合闸 线线路断路器,开关,和隔离开关,刀 200×160 路有人工作” 闸,把手上。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 93 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 3 警告标志 有可能发生触电危险的电气设备 1. “当心触电” 300×240 和线路～如配电装臵室、开关等处。 带电设备固定遮栏上～高压试验地 点安全围栏上～因高压危险禁止通2.“止步，高压危 300×240 行的过道上～工作地点临近室外带险” 电设备的安全围栏上～工作地点临 近带电设备的横梁上等处。 3 提示标志 1.“在此工作” 250×250 工作地点或检修设备上。 2.“运行设备” 250×120 运行设备上 3.“检修设备” 250×120 检修设备上 4.“已接地” 250×120 检修工作已接地设备、线路上 4. 设备名称牌 1.配电站所名称配电站所出入口大门或显著位置 400×300 牌 处 2.配电站所中压 100×80 中压开关、变压器设备上 设备名称牌 3.站所中压开关、中压开关操作面板相应操作孔、手 70×40 闸刀编号牌 柄处 4.站所中压接地中压开关操作面板接地开关操作 70×40 开关编号牌 孔、手柄处 5.站所低压设备 100×80 低压开关柜柜面 名称牌 6.站所低压设备低压开关操作面板相应操作孔、手 70×40 编号牌 柄处 挂臵于户内配电站所内墙～便于预5 模拟图 1500×1000 演操作处 ion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mul94 户内高低压设备上工作～在工作地6. 红白警告带 点两旁及对面运行设备间隔设臵。 沿配电站所巡视路线等距离设置， 7 设备巡视路线 提醒工作人员按标准路线进行巡 视检查。 设置在配电站所内中低压开关柜、 变压器等设备周围，采用45?黄 8 安全警戒线 色与黑色相间的等宽条纹，宽度宜 为50,150mm 消防器材:灭火器 9 及灭火器箱 在各配电装臵室、电缆室等出入口档板(防小动物档 10 处～应装设防小动物挡板～以防止 板) 小动物短路故障引发的电气事故。 户内配电站所应配备专用安全工 11 安全工器具柜 器具柜～存放接地线、标志标牌、 操作手柄、绝缘手套。 12 吸湿器( 注) 环境湿度较高的户内配电站所。 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 95 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision 附录1:弱电线路等级 一级——首都与各省、自治区、直辖市人民政府所在地及其相互间联系的主要线路,首都至各重要工矿城市、海港的线路以及由首都通达国外的国际线路,由邮电部指定的其他国际线路和国防线路,铁道部与各铁路局及铁路局之间联系用的线路,以及铁路信号自动闭塞装臵专用线路。 二级——各省、自治区、直辖市人民政府所在地与各地,市,、县及其相互间的通信线路～相邻两省,自治区,各地,市)、县相互间的通信线路～一般市内电话线路,铁路局与各站、段及站段相互间的线路～以及铁路信号闭塞装臵的线路。 三级——县至区、乡人民政府的县内线路和两对以下的城郊线路,铁路的地区线路及有线广播线路。 iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-96 附录2:导线架线弧垂表: 模块名称 图纸编号 图名 YK-DQ-JX-01 JKLYJ-20/150导线架线弧垂表,K=5, YK-DQ-JX-02 JKLYJ-20/240导线架线弧垂表,K=5, YK-DQ-JX-03 JKLYJ-10/150导线应力弧垂表,K=5, 导线架线 YK-DQ-JX-04 JKLYJ-10/240导线应力弧垂表,K=5, YK-DQ-JX YK-DQ-JX-05 JKLYJ-1/185导线应力弧垂表,K=5, YK-DQ-JX-06 LGJ-150/20 导线架线应力弧垂表,K=8, YK-DQ-JX-07 LGJ-240/30 导线架线应力弧垂表,K=8, intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 97 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision JKLYJ-20/150 架 线 应 力 弧 垂 表安全系数:5.000气象条件 序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:覆冰控制由30.0米到100.0米。?控制条件:覆冰控制由30.0米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15温度 30 35 40 45 50 55 60 65 4覆冰 510 -5 -20 5高温 0 0 40 6校验 0 0 15-10 7安装 010 0 0 8外过 010 15 9内过 015 15 10 20电线型号及参数 30 40 温度 70 75 80 85 90 95 100 -20 -10 比载情况一览表 0 10 20 30 40 Lf =f ×(?)L and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.598 JKLYJ-20/240 架 线 应 力 弧 垂 表安全系数:5.000气象条件 序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:覆冰控制由30.0米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15温度 30 35 40 45 50 55 60 65 4覆冰 510 -5-20 5高温 0 0 40 6校验 0 0 15-10 7安装 010 0 0 8外过 010 15 9内过 015 15 10 20电线型号及参数 30 40 温度 70 75 80 85 90 95 100 -20 -10 0 比载情况一览表 10 20 30 40 Lf =f ×(?)L intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 99 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision JKLYJ-10/150 架 线 应 力 弧 垂 表安全系数:5.000气象条件 序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:覆冰控制由30.0米到100.0米。?控制条件:覆冰控制由30.0米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15 30 35 40 45 50 55 60 65温度 4覆冰 510 -5-20 5高温 0 0 40 6校验 0 0 15-10 7安装 010 0 0 8外过 010 15 9内过 015 15 10 20电线型号及参数 30 40 70 75 80 85 90 95 100温度 -20 -10 比载情况一览表 0 10 20 30 40 Lf =f ×(?)L iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-100 气象条件JKLYJ-10/240 架 线 应 力 弧 垂 表安全系数:5.000序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:低温控制由30.0米到33.2米。覆冰控制由33.2米到100.0米。?控制条件:低温控制由30.0米到33.2米。覆冰控制由33.2米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15温度 30 35 40 45 50 55 60 65 4覆冰 510 -5-20 5高温 0 0 40 6校验 0 0 15-10 7安装 010 0 0 8外过 010 15 9内过 015 15 10 20电线型号及参数 30 40 70 75 80 85 90 95 100温度 -20 -10 比载情况一览表 0 10 20 30 40 Lf =f ×(?)L intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 101 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision JKLYJ-1/185 架 线 应 力 弧 垂 表安全系数:5.000气象条件 序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:低温控制由30.0米到34.1米。覆冰控制由34.1米到100.0米。?控制条件:低温控制由30.0米到34.1米。覆冰控制由34.1米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15 30 35 40 45 50 55 60 65温度 4覆冰 510 -5-20 5高温 0 0 40 6校验 0 0 15-10 7安装 010 0 0 8外过 010 15 9内过 015 15 10 20电线型号及参数 30 40 70 75 80 85 90 95 100温度 -20 -10 比载情况一览表 0 10 20 30 40 Lf =f ×(?)L and creative research and development in science and education function of modern service and port equipment manufacturing, l lturalthe river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5102 LGJ-150/20 架 线 应 力 弧 垂 表安全系数:8.000气象条件 序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:低温控制由30.0米到39.9米。覆冰控制由39.9米到100.0米。?控制条件:低温控制由30.0米到39.9米。覆冰控制由39.9米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15温度 30 35 40 45 50 55 60 65 4覆冰 510 -5 5高温 0 0 40 6校验 0 0 15 7安装 010 0 8外过 010 15 9内过 015 15 电线型号及参数 温度 70 75 80 85 90 95 100 比载情况一览表 Lf =f ×(?)L intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 103 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision LGJ-240/30 架 线 应 力 弧 垂 表安全系数:8.000气象条件序号工况名称?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。?表中数据说明，括号外:应力T，单位:牛顿/平方毫米，括号内:弧垂，单位:米。 1低温 0 0-10?控制条件:低温控制由30.0米到47.0米。覆冰控制由47.0米到100.0米。?控制条件:低温控制由30.0米到47.0米。覆冰控制由47.0米到100.0米。 2大风 025 10?导线初伸长处理详见“业扩工程标准化设计说明”。 3年平 0 0 15温度 30 35 40 45 50 55 60 65 4覆冰 510 -5 5高温 0 0 40 6校验 0 0 15 7安装 010 0 8外过 010 15 9内过 015 15 电线型号及参数 温度 70 75 80 85 90 95 100 比载情况一览表 Lf =f ×(?)L the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along 7 grouaracteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 1ea layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own chact arvers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three ridec natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with belt open development. Spatial structure of 2,-tiple groups from a single radiationintensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, mulion vision2 spatial planning figure 2.6 in Yibin city, Central City urban development vis-iquor, and other features and modern industry. 2.5and creative research and development in science and education function of modern service and port equipment manufacturing, l ltural104 附录3:架空线路污秽分级标准 泄漏比距cm/kV 污 秽 条 件 中性点污秽中性点 盐 密 非 等级 污 湿 特 征直接接 2mg/cm直接接 地 地 0，0.03 (强电解质) 0 大气清洁地区及离海岸50km以上地区1.61.9 0，0.06 (强电解质) 大气轻度污染地区～或大气中等污染 地区, 1.6，1.9，1 盐碱地区～炉烟污秽地区～离海岸10，0.03，0.10 2.02.4 50km的地区～在污闪季节中干燥少雾(含 毛毛雨)或雨量较多时 大气中等污秽地区:盐碱地区～盐烟 污秽地区～离海岸3，10km的地区～在2.0，2.4，20.05，0.10 污闪季节潮湿多雾(含毛毛雨)但雨量较2.53.0 少时 大气严重污染地区:大气污秽而又有2.5，3.0，3重雾的地区～离海岸1，3km的地区及盐0.10，0.25 3.23.8 场附近重盐碱地区 大气特别严重污染地区～严重盐雾侵3.2，3.8，4?0.25 袭地区～离海岸1km以内的地区3.84.5 intensive development. (5) have different emphasis: for development, "with development, the emphasis on" way, from space, multi- 1 - ple groups from a single radiation-belt open development. Spatial structure of 2, the prominent cultural city protection elements on the development of the whole city and culture series supporting role, with natural landscapes and green for the background, according to the combined city, urban Group organization structure, set up a decentralized development patterns, building ... Three rivers: the Yangtze, jinsha River and minjiang rivers, cities in three rivers based on development along the Yangtze River, city on the River, River in the city. Multiple groups: the relatively compact area layout, each district consists of multiple groups, and the area has both integrated urban functions, and have their own characteristics and perimeter formation Li Zhuang, Li Zhuangdong characteristic tour area and Hong Kong in group, consists of 17 groups. Band: modern features gathering along the Yangtze River belt. Dvn group in the upper reaches of the jinsha River along the river continues to the East to South stream groups, layout along the city's main commercial, business, administrative, cultural and creative research and development in science and education function of modern service and port equipment manufacturing, liquor, and other features and modern industry. 2.5-2 spatial planning figure 2.6 in Yibin city, Central City urban development vision vision