BS EN 1474-3 2008

BSEN1474-3:2008ICS75.200NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDInstallationandequipmentforliquefiednaturalgas—DesignandtestingofmarinetransfersystemsPart3:OffshoretransfersystemsLicensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30June2009©BSI2009ISBN9780580579783Amendments/corrigendaissuedsincepublicationDateCommentsBSEN1474-3:2008NationalforewordThisBritishStandardistheUKimplementationofEN1474-3:2008.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeGSE/38,InstallationandequipmentforLNG.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN1474-3December2008ICS75.200EnglishVersionInstallationandequipmentforliquefiednaturalgas-Designandtestingofmarinetransfersystems-Part3:OffshoretransfersystemsInstallationsetéquipementsdegaznaturelliquéfié-Conceptionetessaisdessystèmesdetransfertmarins-Partie3:SystèmesdetransfertoffshoreAnlagenundAusrüstungfürFlüssigerdgas-AuslegungundPrüfungvonSchiffsübergabesystemen-Teil3:Offshore-ÜbergabesystemeThisEuropeanStandardwasapprovedbyCENon1November2008.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2008CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN1474-3:2008:ELicensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)2ContentsPageForeword..............................................................................................................................................................41Scope......................................................................................................................................................52Normativereferences............................................................................................................................53Termsanddefinitions...........................................................................................................................54DefinitionandabilityoftheLNGtransfersystems............................................................................74.1Systemrequirement..............................................................................................................................74.2Overallsafetyphilosophy.....................................................................................................................74.3Overallfunctionaltargetsandrequirements......................................................................................84.4Designprinciplesandriskassessmentmethodology.......................................................................84.5Designprinciples...................................................................................................................................94.6Riskassessment..................................................................................................................................104.6.1Hazardidentification...........................................................................................................................104.6.2Riskanalysis........................................................................................................................................114.6.3Riskassessment..................................................................................................................................114.6.4Acceptancecriteria..............................................................................................................................124.7Safety-criticalelements.......................................................................................................................124.8Performancestandards.......................................................................................................................124.9Riskreduction......................................................................................................................................125Newdesignqualification.....................................................................................................................135.1Designqualification.............................................................................................................................135.2Technologyassessment.....................................................................................................................145.3Riskassessment:failuremodeidentification..................................................................................145.4Analysisandtesting............................................................................................................................145.5Reliabilityanalysis...............................................................................................................................165.6Compliancestatements......................................................................................................................166DesignbasisandcriteriaofaLNGtransfersystem........................................................................166.1General..................................................................................................................................................166.2Supportingstructuresandequipment..............................................................................................176.3Transferlinediameterandproductdata...........................................................................................176.4Dimensionsandclearances...............................................................................................................176.5Stressanalysis.....................................................................................................................................186.6Dynamicbehaviour(cyclicmotionsamplitude,speedandfatigue)..............................................186.7Specialloadssituations......................................................................................................................186.8Productswiveljointsandstructuralbearings..................................................................................196.9Connecting/disconnectingdevice.....................................................................................................196.10Handlingforconnection,disconnection,storing.............................................................................196.11Communications,evacuationandrescue.........................................................................................196.12Others...................................................................................................................................................207Safetyprecautions...............................................................................................................................217.1Introduction..........................................................................................................................................217.2Communication....................................................................................................................................217.3Approachandcontrolmonitoringberthingandconnectionprocess...........................................217.4Positionmonitoring,alarmandshutdownsystemfortheLNGtransfersystems......................227.5ERSsystem..........................................................................................................................................227.6Safetyinterfaces..................................................................................................................................227.7Controloffluidtransfer.......................................................................................................................238ConnectionwiththeLNGC.................................................................................................................238.1TwomaincategoriesofLNGtransfersystemsareanticipated:....................................................23Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)38.2Additionalrequirementsfortheshipshalladdress:.......................................................................238.3Inordermaximisethelevelofstandardisationthefollowingguidanceshallbeobserved:.......248.4SystemsandequipmentforthepositioncontroloftheLNGcarrierduringberthing,connectionandtransfer:....................................................................................................................249Operatingandcontroldesign............................................................................................................2410Inspectionandtests............................................................................................................................2411Qualityassuranceandcontrol...........................................................................................................2412Documentation....................................................................................................................................24AnnexA(normative)Procedurefordeviationfromthefullstandard.........................................................26Bibliography......................................................................................................................................................27Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)4ForewordThisdocument(EN1474-3:2008)hasbeenpreparedbyTechnicalCommitteeCEN/TC282“InstallationandequipmentforLNG”,thesecretariatofwhichisheldbyAFNOR.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyJune2009,andconflictingnationalstandardsshallbewithdrawnatthelatestbyJune2009.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CEN[and/orCENELEC]shallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisEuropeanStandardconsistsin3parts:EN1474-1:Installationandequipmentforliquefiednaturalgas—Designandtestingofmarinetransfersystems—Part1:DesignandtestingoftransferarmsEN1474-2:Installationandequipmentforliquefiednaturalgas—Designandtestingofmarinetransfersystems—Part2:DesignandtestingoftransferhosesEN1474-3,Installationandequipmentforliquefiednaturalgas—Designandtestingofmarinetransfersystems—Part3:OffshoretransfersystemsAccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)51ScopeThisEuropeanStandardgivesgeneralguidelinesforthedesignofliquefiednaturalgas(LNG)transfersystemsintendedforuseonoffshoretransferfacilitiesoroncoastalweatherexposedtransferfacilities.Thetransferfacilitiesconsideredmaybebetweenfloatingunits,orbetweenfloatingandfixedunits.ThespecificcomponentdetailsoftheLNGtransfersystemsarenotcoveredbythisEuropeanStandard.ReferenceismadetoEN1474-1andEN1474-2whereappropriate.Asageneralstatementthepresentstandardappliestoalltransfersystemsgiveninthescope.However,sometransfersystemdesignsmayrequireadeviationfromthefullstandardasdescribedinnormativeAnnexA.2NormativereferencesThefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.EN1473,Installationandequipmentforliquefiednaturalgas—DesignofonshoreinstallationsEN1474-1:2008,Installationandequipmentforliquefiednaturalgas—Part1:DesignandtestingoftransferarmsEN1474-2:2008,Installationandequipmentforliquefiednaturalgas—Part2:DesignandtestingoftransferhosesEN1532,Installationandequipmentforliquefiednaturalgas—ShiptoshoreinterfaceEN61511-1,Functionalsafety—Safetyinstrumentedsystemsfortheprocessindustrysector—Part1:Framework,definitions,system,hardwareandsoftwarerequirements(IEC61511-1:2003+corrigendum2004)EN61511-2,Functionalsafety—Safetyinstrumentedsystemsfortheprocessindustrysector—Part2:GuidelinesfortheapplicationofIEC61511-1(IEC61511-2:2003)EN61511-3,Functionalsafety—Safetyinstrumentedsystemsfortheprocessindustrysector—Part3:Guidanceforthedeterminationoftherequiredsafetyintegritylevels(IEC61511-3:2003+corrigendum2004)ENISO9000,Qualitymanagementsystems—Fundamentalsandvocabulary(ISO9000:2005)ENISO9001,Qualitymanagementsystems—Requirements(ISO9001:2000)3TermsanddefinitionsForthepurposesofthisdocument,thefollowingtermsanddefinitionsapply.3.1attitudevariousmodesofuseand/orlocationofthetransfersystem(i.e.manoeuvring,stowed,connected,washing,hydrostatictestandmaintenance).ThetransfersystemmaytakeseveralpositionsforeachattitudeNOTETransfersystemsee3.18.Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)63.2bankoftransferlinesallthetransferlinesonthetransfersystemNOTETransferlinessee3.17.3.3cargomanifold(ormanifold)pipeassemblymountedonboardLNGcarriertowhichtheoutboardflangesofthetransfersystemareconnected3.4couplermanualorhydraulicmechanicaldeviceusedtoconnectthetransfersystemtotheLNGcarrier’smanifoldNOTEThisdevice,whennotemployingaboltedconnection,isoftenalsoreferredtoasQCDCi.e.quickconnect/disconnectcoupler.3.5designpressurepressureforwhichthetransfersystemisdesigned3.6designtemperaturerangeoftemperaturesforwhichthetransfersystemisdesigned3.7emergencyreleasecoupling(ERC)devicetoprovideameansofquickreleaseofthetransfersystemwhensuchactionisrequiredonlyasanemergencymeasure3.8emergencyreleasesystem(ERS)systemthatprovidesapositivemeansofquickreleaseoftransfersystemandsafeisolationofLNGcarrierandtransfersystem.AnERSnormallycontainoneorseveralERC’s3.9emergencyshutdown(ESD)methodthatsafelyandeffectivelystopsthetransferofLNGandvapourbetweentheLNGcarrierandtheLNGterminal3.10envelope,operating(oroperatingenvelope)volumeinwhichthepresentationflange(s)ofa(groupof)transferline(s)is(are)requiredtooperate3.11LNGCmooringLNGCmooringarrangementontheterminalNOTEThepossiblemooringconfigurationincludes:conventionalmooring(jetty,quay,GBS/GravityBaseStructure,…),Multi-BuoyMooring/ConventionalBuoyMooring(MBM/CBM,…),side-by-sidemooringoftwofloatingunits,tandemmooring(singleordoublehawsersarrangement,“crowfoot”hawserarrangement,rigidorarticulatedyokes,…),DP(DynamicPositioning)orsemiDPsystems.3.12LNGCFirstOrderMotionsheave,pitch,roll,surge,sway,yawNOTEThesemotionsapplyaswellforafloatingLNGterminal.Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)73.13LNGCSecondOrderMotionsothermotionsoftheLNGCwhenmooredontheLNGterminalthathavetobetakenintoaccountinthedesignandoperationslikefishtailing,jack-knifingNOTEThesemotionsresultsfromthebehaviouroftheshipduetothemooringconfiguration.TheyapplyincombinationwiththeLNGCmotionsin3.12.3.14LNGterminalLNGplantwithliquefactionorre-gasificationfacilitiesNOTETheLNGtransfersystemispartoftheLNGplant.TheLNGterminalissupportingthetransfersystemthatcanbeonshoreoroffshoremountedonafixedorfloatingstructurewithorwithoutstoragefacility.3.15performancestandardstatement,whichcanbeexpressedinqualitativeorquantitativeterms,oftheperformancerequiredofasystem,itemofequipment,personorprocedure,andwhichisusedasthebasisforestablishingthedesignspecification,manufacturingandinstallationforthesafeoperationthroughthelifecycleoftheinstallation3.16surgepressurerapidchangeinpressureasaconsequenceofachangeinflowrateinthetransfersystem3.17transferline(orproductline)articulatedpiping,thetransferhoseandswivelsifany,oracombinationofthepipingandhose,allowingthetransferofLNGandnaturalgasbetweentheLNGCandtheLNGterminal3.18transfersystemLNGandnaturalgastransfersystem,thetransfersystemcomprisesthetransferlinesandalltheirsupportingstructureincludingthesupportingstructureontheLNGterminal,completewithallaccessories,control/detectionsystems,energysupplyNOTEThetransfersystemshavetypicallymobileandfixedparts.4DefinitionandabilityoftheLNGtransfersystems4.1SystemrequirementAdescriptionofthesystemandtheoperationshallbeestablished.Anysystemforoffshoreorcoastalweatherexposedoperations,includingLNG-Cmooringandtransfersystems,hastobeconsideredasnewdevelopment,shoulditincorporatearmsorhoses.Developmentofspecificperformancestandardsforcompliancewouldberequired.Theseperformancestandardswouldbedevelopedbasedonriskassessmenttechniques(seeClause5).4.2OverallsafetyphilosophyAnoverallsafetyphilosophyshallbeestablishedanddocumentedbytheowner,reflectingapplicablelegislation,ownerrequirements,industrystandardsandbestpractices.Theoverallsafetyphilosophyshalladdresstheriskcategorisationandalsoacceptancecriteria.Itshallbecomplementedasnecessary,priortocommissioning,withvendorspecificrecommendationconcerningprecautionsforuseofthesystemsorpartsofit.Itshallbeconsistentwiththeterminalgeneralsafetyphilosophy.Licensedcopy:VocationalTradingCouncil,VocationalTrainingCouncil,Versioncorrectasof16/06/200904:28,(c)BSIBSEN1474-3:2008EN1474-3:2008(E)84.3OverallfunctionaltargetsandrequirementsTheoverallfunctionalrequirementsforthecargotransfersystemshallbeidentifiedanddocumented.Asaminimumthefollowingcapabilitiesshallbeaddressedforthedifferentoperationalphases:berthingconfiguration(tandemorsidebysideorsinglepointmooring,…);additionalrequirementstothemanifoldontheLNGcarrierwhenrequired(e.g.tandemorsinglepointmooringoffloading);berthingandmooringprocedure;procedureforconnection,transferanddisconnectincludingemergencyrelease;processofmonitoringandmanagementofcontinualrelativemovementsbetweenvessels(CPMS,telemetryetc.);procedureandfacilitieshandling,liftingandstoringoftransferequipment;transfercapacitiesforLNGandvapourreturn(volumeflow,pressure,temperature);availabilityrequirements;requirementsfortheESDsystem(sequence,timing,processresponses);regulatoryrequirements;requirementsrelatedtolocalregulations,flagifany;ownerQArequirements,suchasclassification,certificationrequirements.4.4DesignprinciplesandriskassessmentmethodologyAriskassessment