IEC 61439-3-2024.docx

IECIEC61439-3Edition2.02024-03INTERNATIONA1.STANDARDNORMEINTERNATIONA1.Eorinside1.ow-vo1.tageswitchgearandcontro1.gearassemb1.ies-Part3:Distributionboardsintendedtobeoperatedbyordinarypersons(DBO)Ensemb1.esd'apparei1.1.ageabassetension-Partie3:Tab1.eauxderepartitiondestinesaetreuti1.isespardespersonnesOrdinaires(DBO)ATHISPUB1.ICATIONISCOPYRIGHTPROTECTEDCoPyright©2024IEC1Geneva,Switzer1.andAJ1.rightsreset伯&UnteesO1.herWigespecified,nopartofthisPUb1.iCaIkinmaybereproducedoruti1.izedinanyformOfAanymeans,e1.ectronicor11>eca11ca1.,inc1.udingpoxx>opyingandmcrofim.WnbOU1.permissioninWEEgfromeitherIECofIECmemberNationa1.CommieinIhecountryoftherequester.I!youhaveanyquestionsaboutIECcopyrighthaveanenquiryaboutOb1.aningancona1.rightstothsPUbtCagn.pte-ascontacttheaAJressbdoworyour1.oca1.IECmc11crNatKXIa1.COmn1.inC«f<xfurtherinformation.Droitsdereproductionr6sfv6s.Saufirxic1.ioncontraire.aucunepartiedece1.tepub1.icationnePeU1.!rereprodi1.eni*seesousqueuetof(11equecesoi1.etparaucuprocede.61ctron*queomecankjue,ycompe1.sIapotocopiee1.Iesm*croms.sansaccorde1.tde1.,IECOUduCOmCQnabona1.de11ECdupaysdudman6eur.SiVoUSavezCfeSquestionssufIecopyrightde11ECOd&VOUS<J6s1.fezObtenrdsdro<sSUPP1.QfnentaMe6surcedepub1.caron.UtiHseztescocxxnesCaPmSouco11taezIeCcmitd11atiade11CdevoirepaysderesidenceCSeaetanatTd.:“1229W02113.ruedoVarcmbcir<iecchCH-1211Geneva20w"w.1.ec.cSwitZerIancIAbouttheIECTheIntornationa1.E1.cctrotcchnica1.Commisskxi(IEC)isthe1.eadingg1.oba1.organizationthatproparcsandpub1.ishesIntefnabonaJStandardstora1.1.e1.ectrics,e<ectroncandrentedtechno1.ogies.AboutIECpub1.icationsTetechnica1.contentaIECpub1.icationsiskep(UndefconstantreviewbyIbeIEC.P1.easemakesurethatyouhavethe1.atesteddion.a<xxredmoranamendmentmighthavebeenPUbhSedIECpub1.icationssearch-WebstorejecxhadvsearchformTheadvancedsearchenab1.estofindIECpub1.icationsbyavarietyo1c11tenaIreterencerximbertext.technica1.oommi!tee.Rateogivesinformationonprojects,rep1.acedandwWdra*pub1.icationsIECJustPub1.ishedwcbstorc.icc.ch,justpub1.ishcdStayuptoda1.eona1.1.newIECpuMcat>or.JustPub1.sddtasa1.1.newpubcat>o5reteasedAvai1.ab1.eon1.ineandOnC8amonthWefnai1.IECCustomerServiceCentre-webstore,ec.ch-escHyouwishtogrv©USyourW1.ckonthispub1.icationorneedfurther35ststanco.p1.ease<11tacttheCus11crServiceCentre:sates»ec.ch.IECProducts&ServicesPorta1.-products.iec.chDiscoverourPowerIU1.searchengineandreadfree1.ya1.1.thePubiicatkxispreviews.graphica1.symbo1.sandth©grossary.Withasubscriptionyouw1.1.a1.wayshaveaccesstoup1.oda1.ententta(oredX>yourne«ds.E1.ectropedta-www.e1.edrope<fia.orgTbcwor1.dsIcacingon1.inedicborwryonccctrotcchnoogy.1.aningmorethan22500termnotogtetfentriesinEng1.sa11dFrenchwithOqUZa(Cn1.tefmSin25addf1.kxaUnu9gcsA1.soKnOWnasEeInternationa1.E9drotech11ca1.VocabUary(IEV)o11*11.Aproposde11EC1.aCOmfnISsonEJectrotechniqueIntefnaDonaIe(ICes1.IaPfgrnIEeorganisationmodiaequ1.ahoreetPubI哈desNormesIngrnagna1.eSpourtoutcequatra<!aMectricitdar*ctronquetau×Wchntfog»esapparents.Apropodespub1.icationsIEC1.eConIenUtechniquedespub1.icationsIECestCons1.anWTien1.revu.VeuiifezVoUSassurerqueVOUSposs6dezIedttionap1.usr6cenie.uncorrigendumouamendementPeU1.avoir66PUb1.i6.Recherchedepub1.icationsIEC-wet>store.iec.chadVsearchform1.ar<hcrctcva11coPefEmdeIrouvcrdc$PUbfCi1.bQnSIECnUHisantdiffre11tsCfiteresInUmfOdereference,1.itod,<udcs.E11cdo1111caussdcsinformationssurk»Pfoje1.Sa1.esPUbICaconsre<np1.acesourM33.IECJustPub1.ished-wet>s1.or.ec.ch,justpubhsedRostczinformdsurcs11ouvccspub1.icationsIECJustPub1.isheddwaIeSouve5puWica1.o11sparuesDisponibtecnIigncCtu11ck>isParmotsparCmaJ1.ServiceC1.ientswebsore.*ec.ch<ccSivous66reznousdonner<fescommenaressurce!½pub1.icationouSiVOuSavezdesquestionsco11taez-11ous:sa1.esPibc.c.IECProducts&ServicesPorta1.-products.1.ec.chOdcouvwznoir©putssa11(11x>wurderecherche©1nsUWzgratui1.ementIousIeeaerusdesPUbHMiO检Syrnbotesgraphjquse<tegossairAyeCunabomement.VOU6aurezEU)OUr$accd$au11COntCnU占jouradp*VQSbcsoi11s.E1.ectropedmwww.e1.ctrope<>taorg1.epremierdictionaifecf61.ecrocnoioeen1.neaumonde,avecp1.usde22500a11ctesIBEnO<ogqusenang1.ais©1efranais.nsiqe1.esefmes6quiva1.ensdans25Ianguesaddibo11e*sE9a1.mniappe<eVOCabU1.aKeEtectfotechniqueInjefnaionaJ(IEVenigne.IEC61439-3Edition2.02024-03INTERNATIONA1.STANDARDNORMEINTERNATIONA1.Eco1.ourinside1.ow-vo1.tageswitchgearandcontro1.gearassemb1.ies一Part3:Distributionboardsintendedtobeoperatedbyordinarypersons(DBO)Ensemb1.esdtapparei1.1.ageabassetension一Partie3:Tab1.eauxderepartitiondestinesaetreuti1.isespardespersonnesOrdinaires(DBO)Internatkdna1.E1.ECTROTECHNICA1.COMMISSIONCOMMISSIONE1.ECTROTECHNIQUEINTERNATK)NA1.ICS29.13020ISBN978-2-8322-8364-6Warning!F4akesurethatyouobtainedthispub1.icationfromanauthorizeddistributor.Attention!Ve