IEC 6352237 2025.docx

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1、Edition1.02025-04INTERNATIONALSTANDARDNORMEINTERNATIONALEElectricalrelays-Testsandmeasurements-Part37:TerminaltemperatureriseatratedloadRelaiselectriques-Essaisetmesurages-Partie37:UchaiHfementdesbornesaIachargeassignee(vUs)寸Olneoez6,eegco9。山一THlSPUBLICATIONISCOPYRIGHTPROTECTEDCopyright2025IEC,Genev

2、a5SwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherIECorIECsmemberNationalCommitteeinthecountryoftherequester.Ifyouhaveanyquestionsa

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5、ationaldeIECdevotrepaysderesidence.IECSecretariat3,ruedeVarembeCH-1211Geneva20SwitzerlandTel.:+41229190211infoiec.chwww.iec.chAbouttheIECTheInternationalElectrotechnicalCommission(IEC)istheleadingglobalorganizationthatpreparesandpublishesInternationalStandardsforallelectrical,electronicandrelatedtec

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11、mmentrevu.Veuillezvousassurerquevouspossedez!editionIaplusrecente,uncorrigendumouamendementpeutavoiretepublie.RecherchedepublicationsIEC-webstore.iec.ch/advsearchformLarechercheavanceepermetdetrouverdespublicationsIECenUtilisantdifferentscriteres(numerodereference,texte,comited,etudes,.).Elledonneau

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15、ne.Edition1.02025-04INTERNATIONALSTANDARDNORMEINTERNATIONALEElectricalrelays-Testsandmeasurements-Part37:TerminaltemperatureriseatratedloadRelaiselectriques-Essaisetmesurages-Partie37:EchauffementdesbornesaIachargeassigneeINTERNATIONALELECTROTECHNICALCOMMISSIONCOMMISSIONELECTROTECHNIQUEINTERNATIONAL

16、EICS29.120.70ISBN978-2-8327-0359-5Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.Attention!Veuillezvousassurerquevousavezobtenucettepublicationviaundistributeuragree.RegisteredtrademarkoftheInternationalElectrotechnicalCommissionMarquedeposeedeIaCommissionElectrotechniqueI

17、nternationaleCONTENTSFOREWORD31 Scope52 Normativereferences53 Termsanddefinitions64 Testprocedure64.1 Purpose64.2 Procedure64.2.1 Testset-up64.2.2 Testprocedure74.3 Conditionstobespecified75 Evaluation85.1 General85.1.1 Processmonitoring85.1.2 Visualinspection85.1.3 Finalchecking85.2 Testreport8Anne

18、xA(normative)Heatingtestarrangement9Bibliography10FigureA.1-Testarrangement9InternationalelectrotechnicalcommissionELECTRICALRELAYS-TESTSANDMEASUREMENTS-Part37:TerminaltemperatureriseatratedloadFOREWORD1) TheInternationalElectrotechnicalCommission(IEC)isaworldwideorganizationforstandardizationcompri

19、singallnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromoteinternationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.Tothisendandinadditiontootheractivities,IECpublishesInternationalStandards,TechnicalSpecifications,TechnicalRep

20、orts,PubliclyAvailableSpecifications(PAS)andGuides(hereafterreferredtoas,IECRubIication(三).Theirpreparationisentrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmayparticipateinthispreparatorywork.International,governmental,andnon-governmentalorganizationsliaisingwit

21、htheIECalsoparticipateinthispreparation.IECcollaboratescloselywiththeInternationalOrganizationforStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganizations.2) TheformaldecisionsoragreementsofIEContechnicalmattersexpress,asnearlyaspossible,aninternationalconsensusof

22、opinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentationfromallinterestedIECNationalCommittees.3) IECPublicationshavetheformofrecommendationsforinternationaluseandareacceptedbyIECNationalCommitteesinthatsense.WhileallreasonableeffortsaremadetoensurethatthetechnicalcontentofIECPublica

23、tionsisaccurate,IECcannotbeheldresponsibleforthewayinwhichtheyareusedorforanymisinterpretationbyanyenduser.4) Inordertopromoteinternationaluniformity,IECNationalCommitteesundertaketoapplyIECPublicationstransparentlytothemaximumextentpossibleintheirnationalandregionalpublications.Anydivergencebetween

24、anyIECPublicationandthecorrespondingnationalorregionalpublicationshallbeclearlyindicatedinthelatter.5) IECitselfdoesnotprovideanyattestationofconformity.Independentcertificationbodiesprovideconformityassessmentservicesand,insomeareas,accesstoIECmarksofconformity.IECisnotresponsibleforanyservicescarr

25、iedoutbyindependentcertificationbodies.6) Allusersshouldensurethattheyhavethelatesteditionofthispublication.7) NoliabilityshallattachtoIECoritsdirectors,employees,servantsoragentsincludingindividualexpertsandmembersofitstechnicalcommitteesandIECNationalCommitteesforanypersonalinjury,propertydamageor

26、otherdamageofanynaturewhatsoever,whetherdirectorindirect,orforcosts(includinglegalfees)andexpensesarisingoutofthepublication,useof,orrelianceupon,thisIECPublicationoranyotherIECPublications.8) AttentionisdrawntotheNormativereferencescitedinthispublication.Useofthereferencedpublicationsisindispensabl

27、eforthecorrectapplicationofthispublication.9) IECdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).IECtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument,IEChadnotrec

28、eivednoticeof（八）patent(三),whichmayberequiredtoimplementthisdocument.However,implementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableathttps:/patents.iec.ch.IECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.IEC63522-37hasbee

29、npreparedbyIECtechnicalcommittee94:Electricalrelays.ItisanInternationalStandard.ThetextofthisInternationalStandardisbasedonthefollowingdocuments:DraftReportonvoting94/1131/FDIS94/1145/RVDFullinformationonthevotingforitsapprovalcanbefoundinthereportonvotingindicatedintheabovetable.Thelanguageusedfort

30、hedevelopmentofthisInternationalStandardisEnglish.ThisdocumentwasdraftedinaccordancewithISO/IECDirectives,Part2,anddevelopedinaccordancewithISO/IECDirectives,Part1andISO/IECDirectives,IECSupplement,availableatwww.iec.ch/members_experts/refdocs.ThemaindocumenttypesdevelopedbyIECaredescribedingreaterd

31、etailatwww.iec.ch/publications.ThisInternationalStandardistobeusedinconjunctionwithIEC63522-0:Underpreparation:Stageatthetimeofpublication:IECCDV63522-0:2024.AlistofallpartsofIEC63522series,publishedunderthegeneraltitleElectricalrelays-Testsandmeasurements,canbefoundontheIECwebsite.Thecommitteehasde

32、cidedthatthecontentsofthisdocumentwillremainunchangeduntilthestabilitydateindicatedontheIECwebsiteunderwebstore.iec.chinthedatarelatedtothespecificdocument.Atthisdate,thedocumentwillbe reconfirmed, withdrawn,or revised.Electricalrelays-TESTSANDMEASUREMENTS-Part37:Terminaltemperatureriseatratedload1S

33、copeThispartofIEC63522isusedfortestingallkindsofelectricalrelaysandforevaluatingtheirabilitytoperformunderexpectedconditionsoftransportation,storageandallaspectsofoperationaluse.NOTEExamplesforelectricalrelaysinthesenseofthisdocumentincludeelectromechanicalrelays,reedrelays,reedcontacts,reedswitches

34、solidstaterelays,timerelaysandtechnologycombinationsofthese.TheobjectofthisdocumentistodefineastandardtestmethodtomeasureterminaltemperatureriseatratedIoad5includedsolderterminals,flatquick-connectterminations,screwandscrewlesstypeterminals,alternativeterminationtypesandsockets.2 Normativereference

35、sThefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.IEC60584-1,Thermocouples-Part1:EMFspecifica

36、tionsandtolerancesIEC60998-1,Connectingdevicesforlow-voltagecircuitsforhouseholdandsimilarpurposes-Part1:GeneralrequirementsIEC60999-1,Connectingdevices-Electricalcopperconductors-Safetyrequirementsforscrew-typeandscrewless-typeclampingunits-Part1:Generalrequirementsandparticularrequirementsforclamp

37、ingunitsforconductorsfrom0,2mmUnderpreparation:Stageatthetimeofpublication:IECCDV63522-0:2024.3Underupto35mm2(included)IEC61810-1:2015,Electromechanicalelementaryrelays-Part1:GeneralandsafetyrequirementsIEC63522-0:一,Electricalrelays-Testsandmeasurements-Part0:Generalandguidance2IEC63522-7,Electrical

38、relays-Testsandmeasurements-Part7:Functionaltestspreparation:Stageatthetimeofpublication:IECBPUB63522-7:2024.3 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninIEC63522-0apply.ISOandIECmaintainterminologydatabasesforuseinstandardizationatthefollowingaddresses: IECElectrop

39、edia:availableathttps:/www.electropedia.org/ ISOOnlinebrowsingplatform:availableathttps:/www.iso.org/obp4Testprocedure4.1 PurposeTerminaltemperatureriseatratedloadtestistocheckthattherelayterminalsdonotexceedagiventemperaturerise,withtherelaypermanentlyenergizedandthecontact(三)loadedwithmaximumrated

40、resistiveload.4.2 Procedure4.2.1 Testset-upTherequirementsofthetestset-upshallbeasfollows.a) TestprocedureA-Groupmounting:ThetestiscarriedoutwiththreerelaysmountedsidebysideinthesamedirectionaccordingtoAnnexA.NOTE1SeeIEC61810-1:2015,Table5,testprocedureA.TestprocedureB-Singlemounting:Thetestiscarrie

41、doutwithonerelay.NOTE2SeeIEC61810-1:2015,Table5,testprocedureB.Unlessspecificallydesignedotherwise,theDUTsaretestedinthehorizontalpositionwiththeterminalspointingdownwards.Themountingdistanceshallbestatedbythemanufacturer.b) Terminalscrewsandnutsorterminalscrewsaretightenedwithatorqueequaltotwo-thir

42、dsofthatspecifiedinIEC60998-1orIEC60999-1.NOTE3Forrelaysforlow-voltagecircuitsforhouseholdandsimilarpurposes,useIEC60998-1,andforrelaysforotherpurposes,useIEC60999-1.c) Incaseofscrewlessterminals,ensurethattheconductorsarecorrectlyfittedtotheterminalsinaccordancewithIEC60998-1orIEC60999-1.NOTE4Forre

43、laysforlow-voltagecircuitsforhouseholdandsimilarpurposes,useIEC60998-1,andforrelaysforotherpurposes,useIEC60999-1.d) TheDUTsshallbemountedinasufficientlylargeheatchamberwithoutforcedconvection.Whenanaircirculatingtestchamberisusedfortesting,bafflesshallbeprovidedwithinthetestchamber,unlessallotherco

44、nditionsin4.2.1aremet.e) TheDUTsshallbeprotectedfromairdraughts,solarinfluencesandthelikeanditisnotallowedtobesubjectedtoanyartificialcooling.f) Duringthetest,thepredeterminedambienttemperatureoftheheatchambershallnotbeinfluencedbytheDT.g) Theambienttemperatureshallbeconstantlyatroomtemperatureoralt

45、ernativelyequaltotheupperlimitoftheoperatingtemperaturerange.4.2.2 TestprocedureThistestshallbeperformedatthemaximumambienttemperatureandaltitude(ifapplicable)specifiedfortheDUTsbeingtested.NOTEIfthemaximumaltitudecannotbemet,thetestcanbeconductedbyreducingatmosphericpressure.Therelationshipbetweena

46、ltitudeandatmosphericpressurereferstoIEC60664-1.Theelectricalinterconnectionsbetweentherelaysorbetweentherelaysandtheloadshallbemadewithconductorswithacross-sectionalareaaccordingtoIEC63522-0:,4.7.Temperatureattheterminalsisdeterminedbymeansoffinewirethermocoupleswhicharepositionedsothattheyhavenegl

47、igibleeffectonthetemperaturebeingdetermined.ThethermocouplesshallbeselectedbythemanufacturerinaccordancewithIEC60584-1.Generally,thermocoupleswithdiameterof0,320mm(28AWG)or0,254mm(30AWG)arerecommended.Themeasuringpointsarepositionedontheterminalsascloseaspossibletothebodyoftherelay.Duringthetest,the

48、rmocouplesshallbepositionedoneverycontactterminal.Othertestmethodsthanthermocouplesarepermitted,providedtheyshowequivalenttestresults.Thecontactsshallbeloadedwithanominalcurrentorasspecifiedbythemanufacturerforthecontactsetuntilthermalequilibrium.Thetestprocedureshallbeasthefollowingthreesteps,andterminaltemperatureriseshallbemonitoredthroughoutthetest.1) Duringthefirst3hofthistest,therelaycoilshallnotbeenergized.Breakcontactsshallbeloade