BSEN6043931991低压开关和控制设备组件规范安装在技术不熟练人员可以使用他们的地方的低压开

BRITISHSTANDARDBSEN60439-3:1991IncorporatingAmendmentsNos.1and2andCorrigendumNo.1SpecificationforLow-voltageswitchgearandcontrolgearassemblies—Part3:Particularrequirementsforlow-voltageswitchgearandcontrolgearassembliesintendedtobeinstalledinplaceswhereunskilledpersonshaveaccesstotheiruse—DistributionboardsTheEuropeanStandardEN60439-3:1991,withtheincorporationofamendmentA1:1994andA2:2001,hasthestatusofaBritishStandard  BSEN60439-3:1991ThisBritishStandardwaspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton28June1991©BSI2006ISBN0580196844CooperatingorganizationsTheEuropeanCommitteeforElectrotechnicalStandardization(CENELEC),underwhosesupervisionthisEuropeanStandardwasprepared,comprisestheNationalCommitteesofthefollowingcountries.AustriaItalyBelgiumLuxembourgDenmarkNetherlandsFinlandNorwayFrancePortugalGermanySpainGreeceSwedenIcelandSwitzerlandIrelandUnitedKingdomAmendmentsissuedsincepublicationAmd.No.DateComments8302August1994SeeNationalforeword134661May2002SeeNationalforeword16213CorrigendumNo.130June2006CorrectiontoreferenceofUKA-deviationinAnnexZA©BSI2006iBSEN60439-3:1991ContentsPageCooperatingorganizationsInsidefrontcoverNationalforewordiiForeword2TextofEN60439-34NationalappendixNA(informative)21NationalappendixNB(informative)22NationalappendixNC(informative)23BSEN60439-3:1991ii©BSI2006NationalforewordTheCENELECcommonmodificationshavebeenimplementedattheappropriateplacesinthetext.Thestartandfinishofeachcommonmodificationisindicatedinthetextbytags
.Whereacommonmodificationhasbeenintroducedbyamendment,thetagscarrythenumberoftheamendment.Forexample,thecommonmodificationsintroducedbyCENELECamendmentA11areindicatedby.Thestartandfinishoftextintroducedoralteredbyamendmentisindicatedinthetextbytags.TagsindicatingchangestoIECtextcarrythenumberoftheIECamendment.Forexample,textalteredbyIECamendment1isindicatedby.TheforewordandprefaceofIEC439-3:1990whichdonotformpartofthetextofEN60439-3havebeenquotedinNationalappendixNA.ThedeletedpartsoftheoriginalIECtextarequotedonpage2ofthisEuropeanStandard.TheforewordoftheENmakesreferenceto“dateofwithdrawal(dow)ofconflictingnationalstandards”as“1994-12-01”.InthiscasetherelevantnationalstandardisBSEN60439-3butthedateofwithdrawalrelatesonlytothosepartsoftheBritishStandardsubjecttoAmendmentA1.CertificatesandmarkswillnotbeawardedafterthisdatewithrespecttotheBritishStandardnotincorporatingAmendmentA1.TheywillbeawardedonlytotheamendedBritishStandard.However,suchcertificatesandmarksalreadyawardedwithrespecttotheBritishStandardnotincorporatingAmendmentA1maycontinuetoapplyforproductionuntil1999-12-01.designated“informative”aregivenforinformationonly.Nationalappendicesaredesignated“informative”.Cross-referencesDetailsofinternationalstandardsquotedinthisBritishStandardforwhichthereisanidenticalortechnicallyequivalentBritishStandardaregiveninNationalappendixNC.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,theENtitlepage,pages2to23andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.ThisBritishStandardhasbeenpreparedunderthedirectionofthePowerElectricalEngineeringStandardsPolicyCommitteeandistheEnglishlanguageversionofEN60439-3“Low-voltageswitchgearandcontrolgearassembliesPart3:Particularrequirementsforlow-voltageswitchgearandcontrolgearassembliesintendedtobeinstalledinplaceswhereunskilledpersonshaveaccessfortheiruse—Distributionboards”includingamendmentsA1andA2,andcorrigendaApril1994andDecember2005,publishedbytheEuropeanCommitteeforElectrotechnicalStandardization(CENELEC).EN60335-2-6wasderivedbyCENELECfromIEC60439-3:1990,whichhasthesametitleastheEuropeanStandard.Annexesdesignated“normative”arepartofthebodyofthestandard.AnnexesThecorrigendum,datedApril1994,addsanewAnnexZAwhichgivesanA-deviationfortheUKandsupersedesBS5486-13:1989whichiswithdrawn.Thecorrigendum,datedDecember2005,replacesthereferenceoftheA-deviationfortheUK.EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN60439-3February1991+A1April1994+A2June2001UDC621.316.54:621.3.027.2:620.1:614.8IncorporatingcorrigendaApril1994andDecember2005Descriptors:Lowvoltageswitchgear,assemblies,unskilledpersonsEnglishversionLow-voltageswitchgearandcontrolgearassemblies—Part3:Particularrequirementsforlow-voltageswitchgearandcontrolgearassembliesintendedtobeinstalledinplaceswhereunskilledpersonshaveaccessfortheiruse—Distributionboards(includesamendmentsA1:1994andA2:2001)(IEC60439-3:1990,modified)Ensemblesd’appareillageàbassetension—Troisièmepartie:Réglesparticulièrespourensemblesd’appareillageBTdestinésàêtreinstallésendeslieuxaccessiblesàdespersonnesnonqualifiéespendantleurutilisation—Tableauxderépartition(inclutlesamendementsA1:1994etA2:2001)(CEI60439-3:1990,modifiée)Niederspann