1、IECIEC60664-1IEdition3.02025-05INTERNATIONALSTANDARDNORMEINTERNATIONALEBASICSAFETYPUBLICATIONPUBLICATIONFONDAMENTALEDESECURITEHORIZONTALPUBLICATIONPUBLICATIONHORIZONTALEAmendement1amendement1Insulationcoordinationforequipmentwithinlow-voltagesupplysystems-Part1:Principles,requirementsandtestsCoordin
2、ationdeisolementdesmaterielsdansIesreseauxdenergieelectriqueabassetension-Partie1:Principes,exigencesetessaisICS29.080.30ISBN978-2-8327-0344-1THISPUBLICATIONISCOPYRIGHTPROTECTEDCopyright2025IEC,Geneva3SwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutili
3、zedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherIECorIECsmemberNationalCommitteeinthecountryoftherequester.IfyouhaveanyquestionsaboutIECcopyrightorhaveanenquiryaboutobtainingadditionalrightstothispublication,pleasecontacttheaddres
4、sbeloworyourlocalIECmemberNationalCommitteeforfurtherinformation.Droitsdereproductionreserves.Saufindicationcontraire,aucunepartiedecettepublicationnepeutetrereproduceniUtiliseesousquelqueformequecesoitetparaucunprocede,electroniqueoumecanique,ycomprisIaphotocopieetIesmicrofilms,sansaccordecritdeIEC
5、ouduComitenationaldeIECdupaysdudemandeur.SivousavezdesquestionssurIecopyrightdeIECousivousdesirezobtenirdesdroitsSupplementairessurcettepublication,UtilisezIesCoordonneesci-apresoucontactezIeComitenationaldeIECdevotrepaysderesidence.IECSecretariatTel.:+412291902113,ruedeVarembeinfoiec.chwww.iec.chCH
6、1211Geneva20SwitzerlandAbouttheIECTheInternationalElectrotechnicalCommission(IEC)istheleadingglobalorganizationthatpreparesandpublishesInternationalStandardsforallelectrical,electronicandrelatedtechnologies.AboutIECpublicationsThetechnicalcontentofIECpublicationsiskeptunderconstantreviewbytheIEC.Pl
7、easemakesurethatyouhavethelatestedition,acorrigendumoranamendmentmighthavebeenpublished.IECpublicationssearch-webstore.iec.ch/advsearchformTheadvancedsearchenablestofindIECpublicationsbyavarietyofcriteria(referencenumber,text,technicalcommittee,.).Italsogivesinformationonprojects,replacedandwithdraw
8、npublications.IECJustPublished-webstore.iec.ch/justpublishedStayuptodateonallnewIECpublications.JustPublisheddetailsallnewpublicationsreleased.Availableonlineandonceamonthbyemail.IECCustomerServiceCentre-webstore.iec.ch/cscIfyouwishtogiveusyourfeedbackonthispublicationorneedfurtherassistance,pleasec
9、ontacttheCustomerServiceCentre:salesiec.ch.IECProducts&ServicesPortal-products.iec.chDiscoverourpowerfulsearchengineandreadfreelyallthepublicationspreviews,graphicalsymbolsandtheglossary.Withasubscriptionyouwillalwayshaveaccesstouptodatecontenttailoredtoyourneeds.Electropedia-www.electropedia.orgThe
10、worldsleadingonlinedictionaryonelectrotechnology,containingmorethan22500terminologicalentriesinEnglishandFrench,withequivalenttermsin25additionallanguages.AlsoknownastheInternationalElectrotechnicalVocabulary(IEV)online.AproposdeIECLaCommissionElectrotechniqueInternationale(IEC)estIapremiereorganisa
11、tionmondialequielaboreetpubliedesNormesinternationalespourtoutcequiatraitaelectricite,aelectroniqueetauxtechnologiesapparentees.AproposdespublicationsIECLecontenutechniquedespublicationsIECestConstammentrevu.VeU川ezvousassurerquevouspossedez!editionIaplusrecente,uncorrigendumouamendementpeutavoiretep
12、ublie.RecherchedepublicationsIEC-webstore.iec.ch/advsearchformLarechercheavanceepermetdetrouverdespublicationsIECenUtilisantdifferentscriteres(numerodereference,texte,comited,etudes,.).ElledonneaussidesinformationssurIesprojetsetIespublicationsremplaceesouretirees.IECJustPublished-webstore.iec.ch/ju
13、stpublishedRestezinformesurIesnouvellespublicationsIEC.JustPublisheddetailleIesnouvellespublicationsparues.DisponibleenIigneetunefoisparmoisparemail.ServiceClients-webstore.iec.ch/cscSivousdesireznousdonnerdesCommentairessurcettepublicationousivousavezdesquestionscontactez-nous:salesiec.ch.IECProduc
14、ts&ServicesPortal-products.iec.chDecouvreznotrepuissantmoteurderechercheetconsultezgratuitementtousIesaperusdespublications,symbolesgraphiquesetIeglossaire.Avecunabonnement,vousaureztoujoursaccesauncontenuajouradapteavosbesoins.Electropedia-www.electropedia.orgLepremierdictionnairedelectrotechnologi
15、eenIigneaumonde,avecplusde22500articlesterminologiquesenanglaisetenfranais,ainsiqueIestermesequivalentsdans25Ianguesadditionnelles.EgalementappeleVocabulaireElectrotechniqueInternational(IEV)enIigne.Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.Attention!Veuillezvousassur
16、erquevousavezobtenucettepublicationviaundistributeuragree.INTERNATIONALELECTROTECHNICALCOMMISSIONINSULATIONCOORDINATIONFOREQUIPMENTWITHINLOW-VOLTAGESUPPLYSYSTEMS-Part1:Principles,requirementsandtestsAMENDMENT1FOREWORD1) TheInternationalElectrotechnicalCommission(IEC)isaworldwideorganizationforstanda
17、rdizationcomprisingallnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromoteinternationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.Tothisendandinadditiontootheractivities,IECpublishesInternationalStandards,TechnicalSpecificatio
18、ns,TechnicalReports,PubliclyAvailableSpecifications(PAS)andGuides(hereafterreferredtoasIECPubIication(三).Theirpreparationisentrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmayparticipateinthispreparatorywork.International,governmentalandnon-governmentalorganizatio
19、nsliaisingwiththeIECalsoparticipateinthispreparation.IECcollaboratescloselywiththeInternationalOrganizationforStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganizations.2) TheformaldecisionsoragreementsofIEContechnicalmattersexpress,asnearlyaspossible,aninternation
20、alconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentationfromallinterestedIECNationalCommittees.3) IECPublicationshavetheformofrecommendationsforinternationaluseandareacceptedbyIECNationalCommitteesinthatsense.Whileallreasonableeffortsaremadetoensurethatthetechnicalconten
21、tofIECPublicationsisaccurate,IECcannotbeheldresponsibleforthewayinwhichtheyareusedorforanymisinterpretationbyanyenduser.4) Inordertopromoteinternationaluniformity,IECNationalCommitteesundertaketoapplyIECPublicationstransparentlytothemaximumextentpossibleintheirnationalandregionalpublications.Anydive
22、rgencebetweenanyIECPublicationandthecorrespondingnationalorregionalpublicationshallbeclearlyindicatedinthelatter.5) IECitselfdoesnotprovideanyattestationofconformity.Independentcertificationbodiesprovideconformityassessmentservicesand,insomeareas,accesstoIECmarksofconformity.IECisnotresponsibleforan
23、yservicescarriedoutbyindependentcertificationbodies.6) Allusersshouldensurethattheyhavethelatesteditionofthispublication.7) NoliabilityshallattachtoIECoritsdirectors,employees,servantsoragentsincludingindividualexpertsandmembersofitstechnicalcommitteesandIECNationalCommitteesforanypersonalinjury,pro
24、pertydamageorotherdamageofanynaturewhatsoever,whetherdirectorindirect,orforcosts(includinglegalfees)andexpensesarisingoutofthepublication,useof,orrelianceupon,thisIECPublicationoranyotherIECPublications.8) AttentionisdrawntotheNormativereferencescitedinthispublication.Useofthereferencedpublicationsi
25、sindispensableforthecorrectapplicationofthispublication.9) IECdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).IECtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument
26、IEChadnotreceivednoticeof（八）patent(三)jwhichmayberequiredtoimplementthisdocument.However,implementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableathttps:/patents.iec.chand/orwww.iso.org/patents.IECshallnotbeheldresponsibleforidentifyinganyo
27、rallsuchpatentrights.Amendment1toIEC60664:2020hasbeenpreparedbyIECtechnicalcommittee109:Insulationco-ordinationforlow-voltageequipment.ThetextofthisAmendmentisbasedonthefollowingdocuments:DraftReportonvoting109/235/FDIS109/240/RVDFullinformationonthevotingforitsapprovalcanbefoundinthereportonvotingi
28、ndicatedintheabovetable.ThelanguageusedforthedevelopmentofthisAmendmentisEnglish.ThisdocumentwasdraftedinaccordancewithISO/IECDirectives,Part2,anddevelopedinaccordancewithISO/IECDirectives,Part1andISO/IECDirectives,IECSupplement,availableatwww.iec.ch/members_experts/refdocs.Themaindocumenttypesdevel
29、opedbyIECaredescribedingreaterdetailatwww.iec.ch/publications/.ThecommitteehasdecidedthatthecontentsofthisdocumentwillremainunchangeduntilthestabilitydateindicatedontheIECwebsiteunderwebstore.iec.chinthedatarelatedtothespecificdocument.Atthisdate,thedocumentwillbe reconfirmed, withdrawn,or revised.T
30、hroughoutthedocument(exceptintheBibliography),delete:IEC60364-4-44:2007andreplacewith:IEC60364-4-44:2024.1ScopeReplacethefirstparagraphwiththefollowing:ThispartofIEC60664dealswithinsulationcoordinationforelectricalequipmenthavingaratedvoltageuptoAC1000VorDC1500Vconnectedtolow-voltagesupplysystems.NO
31、TE1Throughoutthisdocument,thetermequipmentisusedwiththemeaningofelectricalequipment.RenumberNOTE1andNOTE2respectivelyasNOTE2andNOTE3.Add,attheendoftheexistinglastparagraph,thefollowingNOTE:NOTE4FurtherexplanationsandexampleswithregardtotheuseofthisdocumentareprovidedinIECTR60664-2-1.3.1 Termsanddefi
32、nitionsAddthefollowingnewterms:3.1.48electricpowernetworkparticularinstallations,substations,linesorcablesforthetransmissionanddistributionofelectricityNote1toentry:Theboundariesofthedifferentpartsofthisnetworkaredefinedbyappropriatecriteria,suchasgeographicalsituation,ownership,voltage,etc.SOURCE:I
33、EC60050-601:1985,601-01-023.1.49electricalinstallationassemblyofelectricalequipmentwhichisusedforthegeneration,transmission,conversion,distributionand/oruseofelectricenergyNote1toentry:Theelectricalinstallationincludesenergysourcese.g.localpowersuppliessuchasbatteries,capacitorsandallothersourcesofs
34、toredelectricenergy.SOURCE:IEC60050-651:2014,651-26-01,modified-e.g.localpowersupplieshasbeenaddedtotheNotetoentry.3.1.50electricalequipmentitemusedforgeneration,conversion,transmission,distributionorutilizationofelectricenergyNote1toentry:Examplesofsuchitemsareelectricmachines,transformers,switchge
35、arandcontrolgear,measuringinstruments,protectivedevices,wiringsystems,andcurrent-usingequipment.SOURCE:IEC60050-826:2022,826-16-013.1.51electrochemicalmigrationtransportofionsinanelectrolyteduetoanelectricfieldSOURCE:IEC60050-114:2014,114-04-061.1.1 .5AttenuationoftransientovervoltagelevelsAdd,after
36、thirdparagraph,thefollowing:Technicalcommitteesshallconsidertheendoflifeofthemeanstolimittransientovervoltages.1.1.2 EquipmentenergizeddirectlyfromthemainssupplyReplacetheexistingtextof4.3.2withthefollowing:Equipmentisconsideredtobeenergizeddirectlyfromthemainssupplywhentheequipmentisgalvanicallycon
37、nectedtoanelectricpowernetwork(eitherpublicorprivate).Whendefiningtheratedimpulsewithstandvoltageofequipment,technicalcommitteesshalltakeintoaccountthefollowingovervoltagecategories:- OvervoltagecategoryIVappliesat,orintheproximityof,thepointwhereanelectricalinstallationisconnectedtoanelectricpowern
38、etwork.NOTE1EquipmentofovervoltagecategoryIVhasaveryhighimpulsewithstandcapabilityprovidingtherequiredhighdegreeofreliabilityattheselocations,forexampleupstreamofthemaindistributionboard.- OvervoltagecategoryIIIappliesinanelectricalinstallationdownstreamofandincludingthemaindistributionboard.NOTE2Ex
39、amplesofsuchequipmentincludedistributionboards,localgeneration,circuit-breakers,wiringsystems(seeIEC60050-826:2022,826-15-01),includingcables,busbars,junctionboxes,switches,socket-outlets)andequipmentforindustrialuseandsomeotherequipment,e.g.stationarymotors.- OvervoltagecategoryIlappliesforequipmen
40、tconnectedtoanelectricalinstallation.NOTE3Examplesofsuchequipmentareappliances,portabletoolsandsimilarloadswithpluggableorpermanentconnectiontotheelectricalinstallation.- OvervoltagecategoryIappliestoequipmentthatmayonlybeconnectedtoanelectricalinstallationwhenspecificmeasuresareprovided.NOTE4Suchsp
41、ecificmeasuresarerelatedtotransientovervoltagesaswellastotemporaryovervoltagesandareaddressedin4.3.4.Whereahigherdegreeofreliabilityandavailabilityisnecessary,equipmenthavinghigherratedimpulsewithstandvoltageshouldbeconsidered(see5.2.2.2).Addthefollowingnewsubclause:4.3.4Equipmentrequiringspecificme
42、asuresWhenequipmentisdesignedforovervoltagecategoryIandisintendedtobeconnectedtoanelectricalinstallation,allthefollowingmeasuresandverificationsshallbeconsideredbytechnicalcommittees:- themainssupplytowhichtheequipmentisintendedtobeconnected,excludesbydesigntheoccurrenceoftemporaryovervoltageswithpe
43、akvaluesabovetheratedimpulsewithstandvoltageoftheequipment;NOTE1InTN-systemjforexample,therearenosignificanttemporaryovervoltagesexceedingtheratedimpulsewithstandvoltageofequipmentdesignedforovervoltagecategoryI.- transientovervoltagesarelimitedtonotexceedtheratedimpulsewithstandvoltageoftheequipmen
44、tbyappropriatemeans,e.g.SPDs.NOTE2SPDsareprimarilydesignedtolimittransientovervoltages.Howevertheyarealsotestedwithcertaintemporaryovervoltages;formoreexplanationsseetheIEC61643series.- therequiredimpulsewithstandvoltageattherelevantlocationistestedandconfirmedfortheequipmentinconjunctionwiththeinte
45、ndedprotectionmeans,toensurenotonlythewithstandvoltage,butalsothenecessarycoordinationandwithstandasrelatedtoimpulseenergy.NOTE3MoreinformationaboutsystemlevelimmunityisgiveninIECTR61643-03.5.2.5Dimensioningofclearancesofbasicinsulation,supplementaryinsulationandreinforcedinsulationReplacetheexistin
46、gsecondparagraphwiththefollowing:Withrespecttoimpulsewithstandvoltages,clearancesofreinforcedinsulationshallbedimensionedasspecifiedinTableF.2correspondingtotheratedimpulsewithstandvoltagebutonestephigherinthepreferredseriesofvaluesin4.2.2.1thanthatspecifiedforbasicinsulation.Iftheimpulsewithstandvo
47、ltagerequiredforbasicinsulationis:-otherthanavaluetakenfromthepreferredseries,or-12kV(highestvalueofthepreferredseries),reinforcedinsulationshallbedimensionedtowithstand160%oftheimpulsewithstandvoltagerequiredforbasicinsulation.Inthosecases,linearinterpolationofTableF.2isallowed.Add,attheendofthethi
48、rdparagraph(excludingthenote),thefollowing:LinearinterpolationofTableF.8isallowed.5.3.2.1 GeneralAdd,attheendoftheexistingparagraph,thefollowing:SeealsotheinformativeAnnexIforadditionalconsiderationsofelectrochemicalmigrationphenomenonofcreepagedistancesforDCapplications.5.3.2.2 TemporarywithstandovervoltagesReplacethesentencefollowingthelistinthefirstparagraphwiththefollowing:whereUoisthenominallie-to-eutralvoltageofsupplysystems,except:- inITsystemwithoutaneutralconductor,whereUOisthelie-to-linevolta
