IEC 61558-2-4-2021.docx
IEC61558-2-4Edition3.02021-05INTERNATIONA1.STANDARDGROUPSAFETYPUB1.ICATIONSafetyoftransformers,reactors,powersupp1.yunitsandcombinationsthereof-Part2-4:Particu1.arrequirementsandtestsforiso1.atingtransformersandpowersupp1.yunitsincorporatingiso1.atingtransformersforgenera1.app1.icationsTHISPUB1.ICATIONISCOPYRIGHTPROTECTEDCopyright©2021IEC,Geneva,Switzer1.andA1.1.rightsrcs<jrvodUn1.essBhorwtscspecified,noPtanofthsPUbIEartkximaybercpr<iuccdorUti1.izedinanyformorbyanymeans,tfectroncOrmechanica1.,inc1.udingpbo(ccopy11gandECrOfiIm.wthoutpermission11WhUnqfrometherIECorIECsmemberNationa1.Cammi1.teeinIhecountryoftherequester.Hyouhaveanyquestionsabou1.IECcopyright<xhaveanenquiryatou1.Obiwningadditiona1.rightstothispuWicatio11,pteasecontactteaddressZ1.OWOr)»our1.oca1.IECmemberNationa1.Committeeforfurtherinformation.IECCentra1.OHiccTd:441229W02113.ruedeVarembG11r<g>cchCH-1211Geneva20*ww.iec.chSwitzer1.andAbou1.theIECTheInternabona1.Etectrotechnica1.Commisskxi(IEC)isthe1.eadingg1.oba1.organizationthatpreparesa11dPUdisheSInternabona1.Starxjafdsfora1.1.e1.ectricaJ.e1.ectronicandre!edtechno1.ogies.Abou1.IECpub1.icationsThetechnica1.contentofIECpub1.icationsi$keptunderoosUntreviewbytheIECPkjascmakesixothatyouhavethe1.atestedU.a<×xnge11dmoranamendmentcn>ghthavebeenpub1.sd.IECon1.ineco1.1.ectionocec.chDiscoverourPowCrfU1.searchengineandroodIrMya1.1.thePUb1.Ea!tonsPreVIewaWithaSutecnpt1.onyouMIIa1.wayshaveaccesstoupto<fetcco111o11(Iaikxod1oyourneeds.E1.ectropedia-www.e1.ectropedia.orgIhewod<fsIeadngon1.inedictionaryonetec!ftchno1.ogy.1.aningmorethan22OOOtermnocgicentriesinE11g*shandFrench,withequZa怜CItermsIBaddf1.kxiai1.anguagesA1.soknownastheInternationa1.Etearotechnca1.VocabUary(IEV)onine.IECpub1.icationssearch-WebstorejecxhadvsearchformTeadvancedsearchenab1.estofind正Cpub1.icationsbyavarietyofcriteria(referencenumber.text,mittee.Bta&>givesnformabononprojects,rp1.(>ccdandW1.hdfawnPIjto1.ICa1.1.Ons.IECJustPub1.ishedwebs1.ore.iec.ch,justpub1.ishedStayuptoda1.eona1.1.newIECPUHiCatiOns.JuetPubisheddetai1.sa1.1.gwPUb1.ca1»OnSreteasedAvai1.ab1.eon1.ineandonceamonthbyomaIECCustomerServiceCentre-webstor.ec.chcscMyouwishtogfveusyourIeedcGCkonthispuW1.catioorneedfurtherass*sta11ce,p1.easetacttheCustomerServiceC(Xfe:sates»ec.ch.IEC61558-2-4Edition3.02021-05INTERNATIONA1.STANDARDGROUPSAFETYPUB1.ICATIONSafetyoftransformers,reactors,powersupp1.yunitsandcombinationsthereof-Part2-4:Particu1.arrequirementsandtestsforiso1.atingtransformersandpowersupp1.yunitsincorporatingiso1.atingtransformersforgenera1.app1.icationsINTERNATIONA1.E1.ECTROTECHNICA1.CoMMISS1.ONICS29.180ISBN9782832297902Warning!Makesurethatyouobtainedthispub1.icationfromanauthorizeddistributor.，Rcr3YAztenfo1.1.tkto<fU!a<VCONTENTSFOREWORD3INTRODUCTION61 Scopo72 Normativereferences83 Termsanddefinitions84 Genera1.requirements85 Genera1.notesontests86 Ratings97 C1.assification.98 MarkingandotherEocnation99 Protctiagainste1.ectricshock1010 Changeofinputvo1.tagesetting1011 Outputvo1.tageandOU1.PUIcurrentunder1.oad1012 No-1.oadoutputvo1.tage1013 Short-Ocurtvo1.tage1114 Heating.1115 Short-Circurtandover1.oadprotection1116 Mechanica1.strength1217 Protec1.iagainstharmfu1.ingressofdust,so1.idobjectsandmo*sture1218 Insu1.ationresistance,die1.ectricstrengthand1.eakagecurrent1219 Construction1220 Components1221 Interna1.wiring1222 Supp1.yconnectionandotherexterna1.f1.exiWecaWorcords1223 Termina1.sforexterna1.conductors1224 Provisionsforprotectiveea11hig.1225 Screwsandconnections1226 Creepagedistances.C1.OaranCCSanddistancesthroughinsu1.ation1227 Resistancetoheat,fireandtracking1228 Resistancetorusting13Annexes14Bib1.iography15TaWe101-SyEbOteindicatingthekindoftransformer10Tabte102-Outputvo1.tageratio11ImissionSAFETYOFTRANSFORMERS,REACTORS,POWERSUPP1.YUNITSANDCOMBINATIONSTHEREOF-Part2-4:Particu1.arrequirementsandtestsforiso1.atingtransformersandpowersupp1.yunitsincorporatingiso1.atingtransformersforgenera1.app1.icationsFOREWORD11TheInuxnatksna1.E1.oc1.ro1.cchnica1.Co11wn*sson(IEC)isawor1.dw>ccorgamzahonforstandIara7;IIiOnCOrrPrisingMmittees(CNationa1.Co11mttsTheoe(MECstopromotei11temato三!cooe<ationona1.1.questionsconcerningstandardizationtthee1.ec!fca1.ande1.ectronicfie1.ds.To1.hendandinadtxtootherarvriies.IECpub1.ishesInternationa1.Standards.Technca1.SpecH>ca:xs.Technica1.Reports,Pub1.ic1.yAvai1.ab1.eSpecifications(PAS)arriGuides(heceafierreferredtoasIECPuMication(三),).Tberprepara1.kmittees:anyECNationa1.Committeeinterestedrithesubjectdea1.twthmaypartiopau?inthisWCNraXXyWOCkIn1.ornationa1.,goxwimcn1.a1.a11dnongownnxjn1.a1.organizations1.iaisingwtthteIECa1.sop<adidpa½tntNspreparation.IECCd1.aboratesCtoee1.ywt
