团体标准-电能表用外置断路器技术规范英文翻译本

ICS点击此处添加ICS号点击此处添加中国标准文献分类号T/CECT/CEC-XXXXTechnicalspecificationofexternalcircuit-breakerforelectricitymeters电能表用外置断路器技术规范点击此处添加与国际标准一致性程度的标识（征求意见稿）XXXX-XX-XX发布XXXX-XX-XX实施发布T/CEC—XXXXT/CEC—XXXXTechnicalspecificationofcircuit-breakersforelectricitymetersScopeThisstandardstatestheclassification,typeofstructure,technicalrequirements,testmethodsandsoonoftheexternalcircuit-breakersforelectricitymeters(hereinafterreferredtoascircuit-breaker).Thisstandardappliestoa.c.circuit-breakerforoperationat50Hz,60Hzor50/60Hz,hacingaratedvoltagenotexceedingAC400 V,aratedcurrentnotexceeding125 A，andratedshort-circuitbreakingcapacitynotlessthan6000 A.NormativereferencesThefollowingdocumentsareindispensablefortheapplicationthisdocument.Fordatedreference,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.GB/T1804—2000GeneraltolerancesTolerancesforlinearandangulardimensionswithoutindividualtoleranceindicationsGB10963.1—2005Electricalaccessories-Circuit-breakersforovercurrentprotectionforhouseholdandsimilarinstallation-Part1:Circuit-breakersfora.c.operationGB14048.1-2012Low-voltageswitchgearandcontrolgear--Part1:GeneralrulesGB/T17626.2—2006Electromagneticcompatibility（EMC）--Testingandmeasurementtechniques--ElectrostaticdischargeimmunitytestGB/T17626.4—2008Electromagneticcompatibility-Testingandmeasurementtechniques--Electricalfasttransient/burstimmunitytestGB/T17626.5—2006Electromagneticcompatibility-Testingandmeasurementtechniques--SurgeimmunitytestGB17701—2008Circuit-breakerforequipmentGB/T19334—2003Dimensionoflow-voltageswitchgearandcontrolgear--StandardizedmountingonrailsformechanicalsupportofelectricaldevicesinswitchgearandcontrolgearinstallationsGB/T20645—2006Specificenvironmentalcondition--Technicalrequirementsoflow-voltageapparatusesforplateauGB/T26572—2011RequirementsofconcentrationlimitsforcertainrestrictedsubstancesinelectricalandelectronicproductsIEC62055-31:2005Electricitymetering--Paymentsystems--Part31：Particularrequirements--Staticpaymentmetersforactiveenergy(classes1and2)）TermsanddefinitionsForthepurposeofthisdocument,thetermsanddefinitionsgiveninGB14048.1—2012,aswellasthefollowingapply.circuit-breakerMechanicalswitchingdevice,capableofmaking,carryingandbreakingcurrentsundernormalcircuitconditionsandalsomaking,carryingforaspecifiedtimeandbreakingcurrentsunderspecifiedabnormalcircuitconditions(suchasshort-circuitcondition).[SOURCE:GB14048.1,2.2.11]externalcircuit-breakerforelectricitymetersThecircuit-breaker，installedexternallyandcooperatedwiththeelectricitymetertocontrolitsopeningandclosingoperation.automaticopeningandclosingoperationOpeningandclosingoperationofthecircuit-breakerthat,bymeansofremotecontrolsignalsfrommasterstationorotherequipment.(Operationofopeningorclosingthecircuitbreakerbyremotecontrolsignalsfromthemasterstationorotherequipment)automaticopeningandclosingtimeTimemeasuredfromtheinstantatwhichthecircuit-breakerreceivestheopeningorclosingsignaltotheinstantwhenopeningorclosingoperationisaccomplished.innershaftdrivemodeDrivingmodethatenableseachpoletooperatetogetherbymeansofintegralshaftinthecircuitbreaker.power-ondelaytimeTheintervaltimebetweenthepowering-upandreadyforresponsetocontrolsignal.(Thedurationfromtheinstantofpower-ontotheinstantatwhichthebreakerisreadytorespondtoacontrolsignal)3.7synchronoustimeThetimeperiodamongeachpoleofthecircuit-breakertocompleteitsopeningorclosingoperation.(Timedifferenceamongallpolesofabreakertocompleteitsopeningorclosingoperation.)Classificationandperformancerequirements4.1ClassificationAccordingtothenumberofpolesAccordingtothenumberofpoles:1P+N,two-polecircuit-breakerswithoneprotectedpole;2P,two-polecircuit-breakerswithtwoprotectedpoles;3P,three-polecircuit-breakerswiththreeprotectedpoles;3P+N,four-polecircuit-breakerswiththreeprotectedpoles;4P,four-polecircuit-breakerswithfourprotectedpoles.Note:Thepolewhichisnotaprotectedpolecanbe“switchedneutral”.Accordingtoinstallationmethods(Accordingtothemethodofmounting）Surface-type;Flush-type;c) Panelboardtype,alsoreferredtoasdistributionboardtype.Note:Thesetypesmaybeintendedtoberailmounted.（Accordingtothemethodofcontrol）Accordingtothemethodofcontrol:Manualcontrol,tocloseandopenmanuallySemi-automaticcontrol,toclosemanuallyandopenautomatically,Automaticcontrol,tocloseandopenautomatically,Semi-automaticorRemoteautomaticcontrolselectionmode,Havingmodeswitchforselectionofmanualorautomaticmode.Wheninmanualmode,functioningasinremotesemi-automaticcontrolmode.Wheninautomaticmode,functioningasinremoteautomaticcontrolmode.Accordingtotheinstantaneoustrippingcurrenta)B-type;b)C-type;c)D-type.Note:Theselectionofaparticulartypecandependontheinstallationrules.CharacteristicsrequirementsControlsignalvoltageTheratedcontrolsignalvoltageshallbeAC220V.Ratedvoltage（Ue）PreferredvaluesofratedvoltagearegiveninTable1.Table1PreferredvaluesofratedvoltageCircuit-breakersCircuitsupplyingthecircuit-breakerRatedvoltageofcircuit-breakersforuseinsystems230 V、230/400 V、400 VVRatedvoltageofcircuit-breakersforuseinsystems240 VVSinglepoleSinglephase(phasetoneutralorphasetophase)230/Three-phasefour-wire230/Single-phase（phasetoneutral）orthreephase，usingthreesingle-polecircuit-breakers（three-wireorfour-wire）230/400/Two-poleSinglephase（phasetoneutralorphasetophase）230/Singlephase（phasetophase）400240Singlephase（phasetophase,three-wire）/240Threephase（four-wire）230/Three-poleThree-phase（three-wireorfour-wire）400240Four-poleThree-phase（four-wire）400/Note1：InIEC60038，thenetworkvoltagevalueof230/400 Vhasbeenstandardized.Thisvaluewillprogressivelysupersedethevaluesof220/380 Vand240/415 V.Note2：Whereverinthisstandardthereisareferenceto230 Vor400 V,theycanbereadas220 Vor240 V,380 Vor415 V,respectively.Note3：Whereverinthisstandardthereisareferenceto240 V,theycanbereadas200 V.Ratedinsulationvoltage（Ui）Theratedinsulationvoltageshallnotbelessthan500 V.Ratedimpulsewithstandvoltage（Uimp）Theratedimpulsewithstandvoltageshallnotbelessthan6 kV.Ratedcurrent（In）Preferredvaluesofratedcurrentare:40 A,63 A,80 A,100 Aand125 A.Ratedfrequency（fn）Standardvaluesofratedfrequencyare50 Hzand60 Hz.Ratedshort-circuitcapacity（Icn）Theratedshort-circuitbreakingcapacityshallnotbelessthan6000 A.Automaticclosingtime（tc）tc≤3 s。SynchronoustimeThesynchronoustimeofacircuit-breakershallmeettherequirementsofitsproductspecification.Power-ondelaytime（te）Thepower-updelaytimeofcircuit-breakersshouldbesatisfiedwiththerequirementsoftheproductspecification.(Thepower-ondelaytimeofacircuitbreakershallmeettherequirementsofitsproductspecification.)Ratedcontrolsignalvoltage（Uc）TheratedcontrolsignalvoltageshallbeAC220 V.Controlsignalcurrent（Ic）Ic≤1 mA。Closingphaseleakagecurrent（IL1）Steady-statecurrentlossperphaseshallbelessthan0.2 mAwhenthecontrolunitsareattheclosedposition.Openingphaseleakagecurrent（IL2）Steady-statecurrentlossperphaseshallbevlessthan0.2 mAwhenthecontrolunitsareattheopenposition.PowerlossThemaximumpermissiblevaluesperpoleofcircuit-breakersareindicatedinTable2.Table2–MaximumpowerlossperpoleRangeofratedcurrentInAMaximumpowerlossperpoleW32＜In≤406.540＜In≤50850＜In≤6311.563＜In≤10013.5100＜In≤12518PollutiondegreeCircuit-breakerstothisstandardareintendedforenvironmentwithpollutiondegree2,i.e.normallyonlynon-conductivepollutionoccurs;occasionally,however,atemporaryconductivitycausedbycondensationmaybeexpected.ConstructionalrequirementsGeneralCircuit-breakersshallbesodesignedandconstructedthat,innormaluse,theirperformanceisreliableandwithoutdangertotheuserorsurroundings.Complianceischeckedbycarryingoutalltherelevanttestsspecified.AppearanceMetalpartsofthecircuitbreakershallbeadequatelyplatedandcoatedagainstrusting.Metalpartsshallnothavecracks,pittingorpeeling.Thesurfaceoftheplasticpartsshallbesmoothwithoutblisters,cracks,dents,orotherdefects.Externalpartswhichareaccessiblewhenoperatingthecircuit-breakershallbemadeofinsulatingmaterial.Dimensionsofcircuit-breakersarespecifiedinAnnexAOperatingmechanismTheoperatingmechanismofacircuitbreakershallmeetthefollowingrequirements:Theoperatingpartsmustbeflexibleandreliable,anditshallhaveatrip-freemechanism;Forautomaticcontrolapoweroperatingmechanismshallbeprovided；Themovingcontactscancometorestonlyintheclosedoropenposition,eveniftheoperatingmemberistrippedinanintermediatepositionThecircuitbreakershallbeprovidedwithanoperatinghandleformanuallyopeningandclosing,theoperatinghandlemustbesecuredreliably；Goodinsulationbetweenoperatinghandleandlivepartsshouldberealizedtoensuresafety；Themovingcontactsofallpolesofmultipolecircuitbreakersshallbesomechanicallycoupledthatallpoles,excepttheswitchedneutral,makeandbreaksubstantiallytogether,evenifanoverloadoccursononeprotectedpoleonly.Theswitchedneutralpole,ifavailable,shallnotcloseafterandshallnotopenbeforetheprotectedpoles；Ifapolehavinganappropriateshortcircuitmakingandbreakingcapacityisusedasaneutralpole,andthecircuitbreakerisindependentofmanualoperation,allpolesincludetheneutralpolemayoperatesubstantiallytogether；Exceptinmanualcontrolmode,whenreceivingatripcommand,theacircuitbreakershallopenautomaticallyandthemovingcontactsshallstayintheopenposition,andcouldn’tbeclosedmanually；Abreakerunderclosingcommandshallallowmanuallyopenorclose.Afteropening,itshallstayinopenpositionincaseofapower-offandreenergizing；Foracircuitbreakersupportingautomaticcontrolmode,theautomaticclosingmoduleshallemployatotallyenclosedconstructionwithinnershaftdriving,torealizeautomaticclosingfunctionandtoensuremovingcontactsstayintheopenpositionwhenmanuallyclosingabreakwhichisinopenstate.IsolationprotectionEachpoleofcircuit-breakersshallreliablybreakintheopenposition.Circuit-breakersshallprovideintheopenpositionanisolationdistanceinaccordancewiththerequirementsnecessarytosatisfytheisolatingfunction.Indicationoftheopenandclosedpositionofthemaincontactsshallbeprovidedbybothofthefollowingmeans:a)thepositionoftheactuator;b)aseparatemechanicalindicator.(Mechanicalindicatorandactuator)Indicationoftheopenandclosedpositionofthemaincontactsshallbeprovided.Itshallbepossibletoswitchthecircuit-breakeronandoffbyhand.Amechanicalindicatorisusedtoindicatethepositionofthecontacts,thisshallshowthesymbol“|”(or“closed”,“ON”,“red”)fortheclosedpositionandthesymbol“○”(or“open”,“OFF”,“green”)fortheopenposition(OFF).Indicationofthecontactpositionshallbereliable.Circuit-breakersshallbedesignedsothattheactuator,frontplateorcovercanonlybecorrectlyfittedinamannerwhichensurescorrectindicationofthecontactposition.ModeselectionswitchForcircuit-breakerswithsemi-automaticandautomaticcontrolmode,amodeswitchshallbeprovidedinthefronttoselectsemi-automaticcontrolmodeandremoteautomaticcontrolmode.Modeswitchshallbedesignedonthefrontalsideofthecircuit-breaker,andwiththeidentificationof“Automatic”and“Manual”forindicatingthemodeatpresent.Protectionmeasuresshallbetakentopreventthemodeswitchfromtamperinganditshallnotbepossibletoselectamodewithouttheaidofatool.Screws,current-carryingpartsandconnections5.7.1ScrewsandconnectionsConnections,whetherelectricalormechanical,shallwithstandthemechanicalstressesoccurringinnormaluse.5.7.2ElectricalconnectionsElectricalconnectionsshallbesodesignedthatcontactpressureisnottransmittedthroughinsulatingmaterialotherthanceramic,puremicaorothermaterialwithcharacteristicsnolesssuitable,unlessthereissufficientresilienceinthemetallicpartstocompensateforanypossibleshrinkageoryieldingoftheinsulatingmaterial.5.7.3Current-carryingpartsandconnectionsCurrent-carryingpartsincludingpartsintendedforprotectiveconductorsshallbemadeof——copper;——analloycontainingatleast58%copperforpartsworkedcold,oratleast50%copperforotherparts;——othermetalorsuitablycoatedmetal,nolessresistanttocorrosionthancopperandhavingmechanicalpropertiesnolesssuitable.Note:Incaseofusingferrousalloysorsuitablycoatedferrousalloys,compliancetoresistancetocorrosionischeckedbyatestofresistancetorusting.Therequirementsofthissubclausedonotapplytocontacts,magneticcircuits,heaterelements,bimetals,shunts,partsofelectronicdevicesortoscrews,nuts,washers,clampingplates,similarpartsofterminalsandpartsofthetestcircuit.TerminalsforexternalconductorsTerminalsforexternalconductorsshallbesuchthattheconductorsmaybeconnectedsoastoensurethatthenecessarycontactpressureismaintainedpermanently.Connectionarrangementsintendedforbusbarconnectionareadmissible,providedtheyarenotusedfortheconnectionofcables.Sucharrangementsmaybeofthebolt-ontype.Theterminalsshallbereadilyaccessibleundertheintendedconditionsofuse.Circuit-breakersshallbeprovidedwithterminalswhichshallallowtheconnectionofcopperconductorshavingnominalcross-sectionalareasasshowninTable3.Table3Connectablecross-sectionsofcopperconductorsforscrew-typeterminalsRatedcurrentInACross-sectionalareaofthewireSmm232＜In≤501050＜In≤631663＜In≤802580＜In≤10035100＜In≤12550Foracurrentratingnotspecified,ifrequired,complianceischeckedbyrelevantnationalstandards.Itisrequiredthat,forcurrentratingsuptoandincluding50A,terminalsbedesignedtoclampsolidconductorsandrigidstrandedconductors,flexibleconductorsmayalsobeused.Themeansforclampingtheconductorsintheterminalsshallnotservetofixanyothercomponent.Terminalsshallhaveadequatemechanicalstrength.ScrewsandnutsforclampingtheconductorsshallhaveametricISOthreadorathreadcomparableinpitchandmechanicalstrength.Terminalsshallbesodesignedthattheyclamptheconductorwithoutunduedamagetotheconductor.Terminalsshallbesodesignedthattheyclamptheconductorreliablyandbetweenmetalsurfaces.Terminalsshallbesodesignedorpositionedthatneitherarigidsolidconductornorawireofastrandedconductorcanslipoutwhiletheclampingscrewsornutsaretightened.Terminalsshallbesofixedorlocatedthat,whentheclampingscrewsornutsaretightenedorloosened,theterminalsshallnotworkloosefromtheirfixingstocircuit-breakers.Clampingscrewsornutsofterminalsintendedfortheconnectionofprotectiveconductorsshallbeadequatelysecuredagainstaccidentalloosening.Pillarterminalsshallallowfullinsertionandreliableclampingoftheconductor.Complianceischeckedbyinspectionafterarigidconductorofthelargestcross-sectionalareaspecifiedfortherelevantratedcurrentinTable3hasbeenfullyinsertedandfullyclampedbyapplyingthetorquesaccordingtoTable4.Table4–ScrewthreaddiameterandappliedtorqueScrewthreaddiametermmTorqueNmⅠⅡⅢ≤2.8＞2.8～≤3.0＞3.0～≤3.2＞3.2～≤3.6＞3.6～≤4.1＞4.1～≤4.7＞4.7～≤5.3＞5.3～≤6.0＞6.0～≤8.0＞8.0～≤10.0＞10.0～≤12.0＞12.0～≤15.0＞15.0～≤20.0＞20.0～≤24.0＞24.0——————2.0—————2.03.06.010.014.019.025.036.050.0Note1.ColumnIappliestoscrewswithoutheadsifthescrew,whentightened,doesnotprotrudefromthehole,andtootherscrewswhichcannotbetightenedbymeansofascrewdriverwithabladewiderthanthediameterofthescrew.Note2.ColumnIIappliestootherscrewswhicharetightenedbymeansofascrewdriver.Note3.ColumnIIIappliestoscrewsandnutswhicharetightenedbymeansotherthanascrewdriver.Screwsandnutsofterminalsintendedfortheconnectionofexternalconductorsshallbeinengagementwithametalthreadandthescrewsshallnotbeofthetappingscrewtype.SignalfeedbackmodeThecontrolsignalisanAC220Vsignal.Thecontrolunitispoweredbythecontrollineorbythephaselinetransientlyduringtheopeningandclosingoperations.Theleakagecurrentofphaseaftertheclosingoropeningoperationshallcomplywiththerequirementsof4.2.13and4.2.14respectively.ThefeedbacksignalisanAC220Vsignal.Thefeedbacksignalispoweredbythephaselineforsingle-phasecircuit-breakers.Forthree-phasecircuit-breakersthefeedbacksignalispoweredbythreephasesandshallensureproperfeedbackevenunderanyonephaseloss..Thecontrolwireandthefeedbacksignalwireshallhaveacross-sectionalareanolessthan0.3 mm2,withcrimpedlugsatbothendstopreventinverseconnection.Specificationsmaybeinaccordancewiththemanufacturer'sinstructions.ProtectionagainstelectricshockCircuit-breakersshallbesodesignedthat,whentheyaremountedandwiredasfornormaluse,livepartsarenotaccessible.Externalparts,otherthanscrewsorothermeansforfixingcoversandlabels,shalleitherbeofinsulatingmaterialorbelinedthroughoutwithinsulatingmaterial,unlessthelivepartsarewithinaninternalenclosureofinsulatingmaterial.Liningsshallbefixedinsuchawaythattheyarenotlikelytobelostduringinstallationofthecircuit-breakers.Theyshallhaveadequatethicknessandmechanicalstrengthandshallprovideadequateprotectionatplaceswheresharpedgesoccur.Inletopeningsforcablesorconduitsshalleitherbeofinsulatingmaterialorbeprovidedwithbushingsorsimilardevicesofinsulatingmaterial.Suchdevicesshallbereliablyfixedandshallhaveadequatemechanicalstrength.Metallicoperatingmeansshallbeinsulatedfromlivepartsandtheirexposedconductivepartsshallbecoveredbyinsulatingmaterial.Thisrequirementdoesnotapplytomeansforcouplinginsulatedoperatingmeansofseveralpoles.Metalpartsofthemechanismshallnotbeaccessible.TechnicalRequirements6.1Basicrequirements6.1.1AmbientairtemperaturerangeTheambientairtemperatureshallcomplywiththosespecifiedinTable5.Table5AmbientairtemperaturerangeNo.ConditionTemperaturerange(℃)1Specifiedoperatingtemperature-25～652Limittemperature-40～706.1.2HumidityrangeTherelativehumidityoftheairshallcomplywiththosespecifiedinTable6.Table6RelativeAirHumidityNo.ConditionRelativehumidity1Annualaverage＜75％230days(thesedaysaredistributedinanaturalwaythroughouttheyear)95％3Occasionallyoccuronotherdays85％6.1.3Atmosphericconditions63.0 kPa～106.0 kPa（海拔2000 m及以下），特殊订货要求除外。高海拔地区的要求应按照标准GB/T20645—2006中7.2.2的要求进行修正。63.0kPa~106.0kPa(thealtitudedoesnotexceed2000 m),exceptforspecialorderrequirements.Therequirementsathigheraltitudesshallbemodifiedinaccordancewiththerequirementsof7.2.2ofGB/T20645-200InstallationmethodThecircuit-breakershallbeinstalledinaccordancewiththemanufacturer'sinstructions.(IEC-60898-1-2005)Thecircuit-breakershallbeinstalledinaccordancewiththemanufacturer'sinstructions.Thecircuit-breakershallemploythestandardrailwithawidthof35mm,asspecifiedinGB/T19334-2003.ElectricalRequirementsElectricalclearancesandcreepagedistancesGB10963.1—2005中8.1.3适用。8.1.3OfGB10963.1-2005applies.a)theclearanceofthecircuit-breakershallnotbelessthan5.5 mm;b)Thecreepagedistanceofthecircuitbreakershallnotbelessthan6.3mm.DielectricpropertiesCircuit-breakersshallhaveadequatedielectricpropertiesatpowerfrequency,andbesuitableforisolation.Theleakagecurrentshallbelowerthan100mA.InsulationresistanceAfterhumiditytreatment,insulationresistanceshallnotbelessthan2MΩbetweeneachpairoftheterminalsandbetweeneachpoleandtheothersconnectedtogether.Insulationresistanceshallnotbelessthan5MΩbetweenallpolesconnectedtogetherandtheframe,andbetweenmetalpartsofthemechanismandtheframe.ImpulsewithstandvoltageCircuit-breakersshalladequatelywithstandimpulsevoltages.Thebreakershallwithstandanimpulsewithstandvoltageofbe6 kVappliedbetweenopencontacts,betweenthephasepole(s)andtheneutralpoleconnectedtogether(asappropriate),betweeneachpoleandtheotherpolesconnectedtogetherThebreakershallwithstandanimpulsewithstandvoltageof8 kVappliedbetweenphasepole(s)andthemetalsupportTemperature-riselimitsThetemperaturerisesofthepartsofacircuit-breaker,measuredunderthenormaloperatingconditions,shallnotexceedthelimitingvaluesstatedinTable7.Thecircuit-breakershallnotsufferdamageimpairingitsfunctionsanditssafeuse.Table7–Temperature-risevaluesPartsa）b）Temperature-riseKTerminalsforexternalconnectionscExternalpartsliabletobetouchedduringmanualoperationofthecircuit-breaker,includingoperatingmeansofinsulatingmaterialandmetallicmeansforcouplinginsulatedoperatingmeansofseveralpolesExternalmetallicpartsofoperatingmeansOtherexternalparts,includingthatfaceofthecircuit-breakerindirectcontactwiththemountingsurface60402560aNovalueisspecifiedforthecontacts,sincethedesignofmostcircuit-breakersissuchthatadirectmeasurementofthetemperatureofthosepartscannotbemadewithouttheriskofcausingalterationsordisplacementsofpartslikelytoaffectthereproducibilityofthetests.The28-daytest(see9.9)isconsideredtobesufficientforcheckingindirectlythebehaviourofthecontactswithrespecttoundueoverheatinginservice.bNovalueisspecifiedforpartsotherthanthoselisted,butnodamageshallbecausedtoadjacentpartsofinsulatingmaterials,andtheoperationofthecircuit-breakershallnotbeimpaired.cForplug-intypecircuit-breakers,theterminalsofthebaseonwhichtheyareinstalled.Trippingcharacteristics8.6ofGB10963.1-2005applies.Thetime-currentcharacteristicsofB,CandD-typecircuit-breakersshallmeettherequirementsstatedinTable8.Table8Time-currentoperatingcharacteristicsTestTypeTestcurrentInitialconditionLimitsoftrippingornon-trippingtimeResulttobeobtainedRemarksaB、C、D1.13InColdat≤1h（forIn≤63A）

t≤2h（forIn＞63A）Notripping/bB、C、D1.45InImmediateyfollowingtestat＜1h（forIn≤63A）

t＜2h（forIn＞63A）TrippingCurrentsteadilyincreasedwithin5scB、C、D2.55InColda1s＜t＜60s（forIn≤32A）

1s＜t＜120s（forIn＞32A）Tripping/dB、C、D3In5In10InColdat≤0.1sNotrippingCurrentestablishedbyclosinganauxiliaryswitcheB、C、D5In10In20InbColdat＜0.1sTrippingCurrentestablishedbyclosinganauxiliaryswitchaTheterm"cold"meanswithoutpreviousloading.b50Inforspecialcases.Short-circuitperformancerequirementsThesameasinGB10963.1-2005ofGB10963.1-2005applies.MechanicalperformancerequirementsAfterthemechanicalshocktest,thecircuit-breakershallshownomechanicaldamageimpairingitsfurtheruse,andoperateproperlybybothmanualoperationandremotecontrol.Duringthetest,thecircuit-breakershallnotchangeitsstate.Materialperformancerequirements6.5.1ResistancetoheatResistancetoheatshallcomplywiththerequirementsof8.10ofGB10963.1-2005.6.5.2ResistancetoabnormalheatandfireResistancetoabnormalheatandtofireshallcomplywiththerequirementsof8.11ofGB10963.1-200VerificationofresistancetorustingResistancetorustingshallcomplywiththerequirementsof8.12ofGB10963.1-2005.Ferrouspartsshallbeadequatelyprotectedagainstrusting.Reliabilityrequirements28-dayoperationalrequirementsThecircuitbreakershallbesubjectedtoa28-daytestaccordingtothetestrequirementsof9.9ofGB10963.1-2005.Thetemperatureriseofthecircuit-breakershallbemeasuredafterthetest,andshallcomplywiththerequirementsgivenbyTable7.MechanicalendurancerequirementsTheoperationalperformancetestshallbeperformedwithnocurrentinthemaincircuitaccordingto9.11ofGB10963.1—2005.Eachoperatingcycleconsistsofaclosingoperationfollowedbyanopeningoperation.Incaseofcircuit-breakerswithremotesemi-automaticandremoteautomaticcontrolmode,thecircuit-breakershallbeoperatedwithremotecontrol.Theoperatingfrequencyshallbe6operatingcyclesperminute.Thecircuit-breakerissubmittedto10000operatingcycles,andshallnotshow:a)unduewear,powerlossvariationrateperpolegreaterthan20%;b)discrepancybetweenthepositionofmovingcontactsandofthecorrespondingpositionoftheindicatingdevice;c)damagetotheenclosurepermittingaccesstolivepartsbythetestfinger;d)looseningofelectricalormechanicalconnections;e)seepageofsealingcompound.Forspecialrequirements,thetestsshallbecarriedoutunderspecifiedconditionsElectricalendurancerequirementsTheoperationalperformancetestshallbeperformedwithratedcurrentinthemaincircuitaccordingto9.11ofGB10963.1—2005.Eachoperatingcycleconsistsofamakingoperationfollowedbyabreakingoperation.Incaseofcircuit-breakerswithremotesemi-automaticandremoteautomaticcontrolmode,thecircuit-breakershallbeoperatedwithremotecontrol.Duringeachoperatingcyclethecircuit-breakershallremainopenforatleast28s.Thecircuit-breakerissubmittedto4000operatingcycles,andshallnotshow:a)unduewear,powerlossvariationrateperpolegreaterthan20%orexceedstandardpowerloss;b)discrepancybetweenthepositionofmovingcontactsandofthecorrespondingpositionoftheindicatingdevice;c)damagetotheenclosurepermittingaccesstolivepartsbythetestfinger;d)looseningofelectricalormechanicalconnections;e)seepageofsealingcompound.ControlmethodrequirementsForcircuit-breakercontrolling,theratedcontrolvoltagesignalisused.Feedbackofthecircuit