英国电网要求 bs-7671-2018_a1_2020-inc-corrigendum-may-2020_read-only.docx

BRITISHSTANDARDBS7671:2018Amendment1:2020RequirementsforElectricalInstallationsbsi.IETWiringRegulationsEighteenthEdition©TheInstitutionofEngineeringandTechnologyandBSI.NOCOPYINGINANYFORMWITHOUTWRITTENPERMISSIONPublicationInformationPublishedbytheInstitutionofEngineeringandTechnology,London,UnitedKingdominagreementwithBSLIEbsi.TheInstitutionofEngineeringandTechnologyisregisteredasaCharityinEngland&Wales(no.211014)andScotland(no.SC038698).TheInstitutionofEngineeringandTechnologyistheinstitutionformedin2(X)6bythejoiningtogetheroftheIEE(theInstitutionofElectricalEngineers)andtheIIE(theInstitutionofIncorporatedEngineers).BritishStandardsInstitutionistheindependentnationalbodyresponsibleforpreparingBritishStandards.ItpresentstheUKviewonstandardsinEuropeandattheinternationallevel.ItisincorporatedbyRoyalCharter.©2008,2011,2013,2015,2018,2020theInstitutionOfEngineeringandTechnologyandBSIThisBritishStandardwaspublishedunderthejointauthorityoftheIETandoftheStandardsPolicyandStrategyCommitteeon1July2018.ThispublicationiscopyrightundertheBemeConventionandtheUniversalCopyrightConvention.Allrightsreserved.Apartfromanyfairdealingfbrthepurposesofresearchorprivatestudy,orcriticismorreview,aspermittedundertheCopyright,DesignsandPatentsAct1988thispublicationmaybereproduced,storedortransmitted,inanyformorbyanymeans,onlywiththepriorpermissioninwritingofthepublishers,orinthecaseofreprographicreproductioninaccordancewiththetermsoflicencesissuedbytheCopyrightLicensingAgency.EnquiriesconcerningreproductionoutsidethosetermsshouldbesenttothepublishersalTheInstitutionofEngineeringandTechnology,MichaelFaradayHouse,SixHillsWay,Stevenage,SGl2AY,UnitedKingdomWhilethepublisherandcontributorsbelievethattheinformationandguidancegiveninthisworkiscorrect,allpartiesmustrelyupontheirownskillandjudgementwhenmakinguseofit.Thepublisherandcontributorsdonotassumeanyliabilitytoanyoneforanylossordamagecausedbyanyerrororomissioninthework,whethersucherrororomissionistheresultofnegligenceoranyothercause.Anyandallsuchliabilityisdisclaimed.TheUKparticipationinitspreparationwasentrustedtoJointTechnicalCommitteeJPEL/64ElectricalInstallations.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsiblefbritscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.TheIETistakingtheissuesfoundwithdangerouscounterfeitsofitstitlesveryseriously.Forinformationoncounterfeits,thehologramandhowtoidentifygenuineIETpublications,visit:https:/electrical.theiet.org/bs-7671/fake-awareness/ItistheconstantaimoftheIETandBSltoimprovethequalityofourproductsandservices.WeshouldbegratefulifanyonefindinganinaccuracyorambiguitywhileusingthisBritishStandardwouldinformtheSecretary,GDCronshawgcronshawtheiet.org,TheIET,SixHillsWay,Stevenage,SGl2AY,UnitedKingdom.ISBN978-1-83953-193-4(electronic)ISBN978-1-83953-194-1(VBID)TypesetintheUKbytheInstitutionofEngineeringandTechnology,StevenageCONTENTSFOREWORD4INTRODUCTIONTOAMENDMENT1:20204EDITIONS5PREFACE5NOTEBYTHEHEALTHANDSAFETYEXECUTIVE6NOTESONTHEPLANOFTHE18thEDITION6PART2DEFINITIONS7SYMBOLSUSEDINTHESTANDARD8PART7SPECIALINSTALLATIONSORLOCATIONS9SECTION700GENERAL9SECTION722ELECTRICVEHICLECHARGINGINSTALLATIONS9ANNEXA722GUIDANCEFORTNSYSTEMSWHEREPMECONDITIONSAPPLY13APPENDIX1(Normative)BRITISHSTANDARDSTOWHICHREFERENCEISMADEINTHISSTANDARD15INDEX16ForewordThisBritishStandardispublishedunderthedirectionoftheBritishEleclrotechnicalCommittee(BEC)andtheInstitutionofEngineeringandTechnology(IET).Followingafullreview,thisStandardreplacedthe17thEditionoftheIEEWiringRegulationsBS7671:2008asamended.CopyrightisheldjointlybytheIETandBSI.TechnicalauthorityforthisStandardisvestedintheJoint1ETBS1TechnicalCommitteeJPEL/64.ThisJointTechnicalCommittee,whichisresponsiblefortheworkpreviouslyundertakenbytheIEEWiringRegulationsCommitteeandtheBSITechnicalCommitteePEL64,meetstheconstitutionalandoperationalrequirementsofbothparentbodies.JPEL/64hastheresponsibilityforthecontentofthisBritishStandardunderthejointauthorityoftheIETandtheBSIStandardsBoard.AllreferencesinthistexttotheWiringRegulationsortheRegulation(s),wherenototherwisespecificallyidentified,shallbetakentorefertoBS7671:2018RequirementsforElectricalInstallationsasamendedbyAmendment1,2020.AdditionsoralterationstoregulationsowingtotheissueofBS7671:2018areindicatedbyasidebarinthemargin.IntroductiontoAmendment1:2020Amendment1:2020toBS7671:2018RequirementsforElectricalInstallationswasissuedon1stFebruary2020andmaybeimplementedimmediately.ElectricalinstallationsfallingwithinthescopeofSection722,theerectionofwhichiscommencedafter31stJuly2020,aretocomplywithBS7671:2018incorporatingAmendment1:2020.Amendment1:2020amendsSection722ElectricVehicleChargingInstallations.Part2DefinitionsrelatingtoSection722havebeenincluded.Section700GeneralThisoverarchingsectionexplainstheneedforPart7.Section722Electricvehiclecharginginstallations.Section722amended,basedonHD60364-7-722:2018.Section722appliestoelectricvehiclecharginginstallations.Itmodifiesthegeneralrequirementsforprotectionagainstelectricshock,andincludesspecificrequirementswithregardtoPMEsystems,socket-outletsandconnectors,externalinfluences,isolationandswitchingandRCDprotection.Regulation722.411.4.1addsindent(iv)whichaddsanalternativesolutionrequirementforcharginginstallations.Therequirementsofthissectiondonotapplytowirelesscharging,suchasinductivecharging.APPendiX1ReferencestoBritishStandardsforSection722havebeenincluded.IndexEntriesforSection722havebeenincluded.EditionsEIGHTEENTH EDITIONBS7671:2018issued,July2018.(BlueCover)Amendment1issued,February2020(electronic)PrefaceBS7671RequirementsforElectricalInstallationstakesaccountofthetechnicalsubstanceofagreementsreachedinCENELEC.Inparticular,thetechnicalintentoftheIbllowingCENELECHarmonizationDocumentisincluded:CENELECHDYearDocumentreferenceBS7671HD60364-7-7222018SuppliesforelectricvehiclesSection722WheretheabovedocumentcontainsUKspecialnationalconditions,thoseconditionshavebeenincorporatedwithinBS7671.IfBS7671isappliedinothercountriestheabovedocumentshouldbeconsultedtoconfirmthestatusofaparticularregulation.BS7671willcontinuetobeamendedfromtimetotimetotakeaccountofthepublicationofneworamendedCENELECandIECstandards.Theopportunityhasbeentakentoreviseregulationsthatexperiencehasshownrequireclarificationortoallowfornewtechnologyandmethods.ReferenceismadethroughoutBS7671topublicationsoftheBritishStandardsInstitution,bothspecificationsandcodesofpractice.Appendix1liststhesepublicationsandgivestheirfulllilieswhereasthroughoutBS7671theyarereferredtoonlybytheirnumbers.WherereferenceismadeinBS7671toaBritishStandardwhichtakesaccountofaCENELECHarmonizationDocument,EuropeanNorm(EN)orIECstandard,itisunderstoodthatthereferencealsorelatestoanyEuropeannationalstandardsimilarlyderivedfromtheCENELECstandard,althoughaccountneedstobetakenofanynationalexemptions.NotebytheHealthandSafetyExecutiveTheHealthandSafetyExecutive(HSE)welcomesthepublicationofBS7671:2018,RequirementsforElectricalInstallations,IETWiringRegulations18thEditionanditsupdatingwiththefirstamendment,publishedin2020.BS7671andtheIETIEEWiringRegulationshavebeenextensivelyreferredtoinHSEguidanceovertheyears.InstallationswhichconformtothestandardslaiddowninBS7671:2018+A1:2020areregardedbyHSEaslikelytoachieveconformitywiththerelevantpartsoftheElectricityatWorkRegulations1989.ExistinginstallationsmayhavebeendesignedandinstalledtoconformtothestandardssetbyearliereditionsofBS7671ortheIETIEEWiringRegulations.ThisdoesnotmeanthattheywillfailtoachieveconformitywiththerelevantpartsoftheElectricityatWorkRegulations1989.Notesontheplanofthe18thEditionThisEditionisbasedontheplanagreedinternationallyforthearrangementofsafetyrulesforelectricalinstallations.TheregulationnumberingfollowsthepatternandcorrespondingreferencesofIEC60364.Thenumberingdoesnot,therefore,necessarilyfollowsequentially.ThenumberingsystemusedinPart7isexplainedinSection700.Inthenumberingsystemused,thefirstdigitsignifiesaPart,theseconddigitaChapter,thethirddigitaSectionandthesubsequentdigitstheRegulationnumber.Forexample,Sectionnumber413ismadeupasfollows:PART4-PROTECTIONFORSAFETYChapter41(firstchapterofPart4)-PROTECTIONAGAINSTELECTRICSHOCKSection413(thirdsectionofChapter41)-PROTECTIVEMEASURE:ELECTRICALSEPARATIONPart 1 setsoutthescope,objectandfundamentalprinciples.Part 2 definesthesenseinwhichcertaintermsareusedthroughouttheRegulations,andprovidesalistofsymbolsusedandalistofabbreviationsusedintheStandard.Thesubjectsofthesubsequentpartsareasindicatedbelow:PartSubjectPart 3 IdentificationofthecharacteristicsoftheinstallationthatwillneedtobetakenintoaccountinchoosingandapplyingtherequirementsofthesubsequentParts.Thesecharacteristicsmayvaryfromonepartofaninstallationtoanotherandshouldbeassessedforeachlocationtobeservedbytheinstallation.Part 4 Descriptionofthemeasuresthatareavailablefortheprotectionofpersons,livestockandproperty,andagainstthehazardsthatmayarisefromtheuseofelectricity.Part 5 Precautionstobetakenintheselectionanderectionoftheequipmentoftheinstallation.Part 6 Inspectionandtesting.Part 7 Specialinstallationsorlocations-particularrequirements.ThesequenceoftheplanshouldbefollowedinconsideringtheapplicationofanyparticularrequirementoftheRegulations.Thegeneralindexprovidesareadyreferencetoparticularregulationsbysubject,butinapplyinganyoneregulationtherequirementsofrelatedregulationsshouldbeborneinmind.Cross-referencesareprovided,andtheindexisarrangedtofacilitatethis.Inmanycases,agroupofassociatedregulationsiscoveredbyasideheadingwhichisidentifiedbyatwo-partnumber,e.g.544.2.ThroughouttheRegulationswherereferenceismadetosuchatwo-partnumber,thatreferenceistobetakentoincludealltheindividualregulationnumberswhicharecoveredbythatsideheadingandincludethattwo-partnumber.TheRegulationsusetheIECdecimalpointnumberingsystemtomakeiteasiertoembodyfuturechangesandadditionsresultingfromongoinginternationalstandardsworkwithinIECandCENELEC.InordertoidentifyandaccommodatefutureIECchangessomeregulationscarryeithera100or200numberwhere100numbersrepresentCENELECHarmonizationDocumentreferencenumbersand200numbersrepresentUK-onlyregulations.Someregulationshavenotbeen'updated'toindicate100and200numbers;thatwillonlybedonewhenthoseregulationsrequireasignificantrewrite.Part2DEFINITIONSElectricvehicle(EV),722.Anyvehiclepropelledbyanelectricmotordrawingcurrentfromarechargeablestoragebatteryorfromotherportableenergystoragedevices(rechargeable,usingenergyfromasourceoffthevehiclesuchasaresidentialorpublicelectricityservice),whichismanufacturedprimarilyforuseonpublicstreets,roadsorhighways. Chargingequipment.Anassemblyincludingoneormorechargingpoints. Electricvehiclechargingpoint.Thepointwheretheelectricvehicleisconnectedtothefixedinstallation.NOTE:Thechargingpointisasocket-outletwherethechargingcablebelongstothevehicle,oraconnector,wherethechargingcableisafixedpartoftheelectricvehiclesupplyequipment. Mode1charging.ConnectionoftheEVtotheACsupplynetworkutilizingstandardizedsocket-outletsnotexceeding16Aandnotexceeding250VACsingle-phaseor480VACthree-phase,atthesupplyside,andutilizingthepowerandprotectiveearthconductors(accordingtoBSEN61851-1). Mode2charging.ConnectionoftheEVtotheACsupplynetworkutilizingstandardizedsocket-outletsnotexceeding32Aandnotexceeding250VACsingle-phaseor480VACthree-phase,atthesupplyside,andutilizingthepowerandprotectiveearthconductorstogetherwithacontrolpilotfunctionandsystemofpersonnelprotectionagainstelectricshock(RCD)betweentheEVandtheplugoraspartofthein-cablecontrolbox. Mode3charging.ConnectionoftheEVtotheACsupplynetworkutilizingdedicatedelectricvehiclesupplyequipmentwherethecontrolpilotfunctionextendstocontrolequipmentintheelectricvehiclesupplyequipment,permanentlyconnectedtotheACsupplynetwork. Mode4charging.ConnectionoftheEVtotheACsupplynetworkutilizinganoff-boardchargerwherethecontrolpilotfunctionextendstoequipmentpermanentlyconnectedtotheACsupply. Vehicleconnector.Partofavehiclecouplerintegralwith,orintendedtobeattachedio,theflexiblecableconnectedtotheACsupplynetwork(mains). Vehiclecoupler.MeansofenablingthemanualconnectionofaflexiblecabletoanEVforthepurposeofcharging.NOTE:Avehiclecouplerconsistsoftwoparts:avehicleconnectorandavehicleinlet.SYMBOLSUSEDINTHESTANDARDSymbolMeaningExampleSymbolMeaningExampleCJmaNisthemaximumvoltagefactortotakeaccountofA722.2ILl'1L2arethermsvaluesofcurrent(inamperes)inlinesA722.lvoltagevariationsdependingontimeandplace.andIi_31.2and3,respectively,thatwereusedwhenchangingoftransformertapsandotherdeterminingthevalueofImconsiderations.ForalowvoltagesupplygiveninaccordancewiththeESQCR,CmaX*sgiventhevalue1.1RAeisthesumoftheresistancesoftheearthelectrodeandtheprotectiveconductorconnectingittothemainearthingtenninalA722.3Iimitisthermsmaximumdemandcurrentofasingle-phaseinstallation(inamperes),includingthatoflheelectricvehiclechargingloadandanyotherloads,determinedinaccordancewithRegulation311.1A722.3oftheinstallation(inohms)Imisthermsmaximumneutralcurrentofathree-phaseinstallation(inamperes),includingthatoftheelectricvehiclechargingloadandanyotherloads,determinedinaccordancewithRegulation311.1A722.1PART7SPECIALINSTALLATIONSORLOCATIONSCONTENTS700GENERAL722ELECTRICVEHICLECHARGINGINSTALLATIONSSECTION700GENERALTheparticularrequirementsforeachsection(specialinstallationorlocation)inPart7supplementormodifythegeneralrequirementscontainedinotherpartsofBS7671.Theabsenceofreferencetotheexclusionofapart,achapter,asectionoraregulationmeansthatthecorrespondinggeneralregulationsareapplicable.Thenumberappearingafterasectionnumbergenerallyreferstothecorrespondingchapter,sectionorregulationwithinParts1to6.Thenumberingdoesnot,therefore,necessarilyfollowsequentiallyandnewnumbershavebeenaddedasrequired.Numberingoffiguresandtablestakesthenumberofthesectionfollowedbyasequentialnumber.SECTION722ELECTRICVEHICLECHARGINGINSTALLATIONSNOTE:DefinitionsrelatingtoSection722canbefoundinPart2underelectricvehicle(EV),722.722.1 ScopeTheparticularrequirementsofthissectionapplytocircuitsintendedtosupplyelectricvehiclesforchargingpurposes.Therequirementsofthissectiondonotapplytoelectricvehiclechargingpointsthat:(i) employinductivecharging(ii) chargemobilitysctersandsimilarvehiclesof10Aandless.722.3Assessmentofgeneralcharacteristics722.31Purposes,suppliesandstructure722.311Maximumdemandanddiversity722.311.201Loadcurtailment,includingloadreductionordisconnection,eitherautomaticallyormanually,maybetakenintoaccountwhendeterminingmaximumdemandoftheinstallationorpartthereof.722.312Conductorarrangementandsystemearthing722.312.2.1TNsystemsAcircuitsupplyingchargingequipmentforelectricvehiclesshallnotin