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首页 UL 845-2005

UL 845-2005.pdf

UL 845-2005

CCKZSB
2013-11-22 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《UL 845-2005pdf》,可适用于工程科技领域

ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULULISBNXMotorControlCentersCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULUnderwritersLaboratoriesInc(UL)PfingstenRoadNorthbrook,ILULStandardforSafetyforMotorControlCenters,ULFifthEdition,DatedAugust,Revisions:ThisStandardcontainsrevisionsthroughandincludingAugust,SummaryofTopicsThisrevisiontoANSIULincludesaneditorialcorrectiontoAnnexGTextthathasbeenchangedinanymannerismarkedwithaverticallineinthemarginTherevisionsdatedAugust,includeareprintedtitlepage(page)forthisStandardAsindicatedonthetitlepage(page),thisULStandardforSafetyisanAmericanNationalStandardAttentionisdirectedtothenoteonthetitlepageofthisStandardoutliningtheprocedurestobefollowedtoretaintheapprovedtextofthisANSIULStandardAsindicatedonthetitlepage(page),thisULStandardforSafetyhasbeenadoptedbytheDepartmentofDefenseTheULForewordisnolongerlocatedwithintheULStandardForinformationconcerningtheuseandapplicationoftherequirementscontainedinthisStandard,thecurrentversionoftheULForewordislocatedonULStandardsInfoNetat:http:ulstandardsinfonetulcomulforewordhtmlThemasterforthisStandardatUL’sNorthbrookOfficeistheofficialdocumentinsofarasitrelatestoaULserviceandthecomplianceofaproductwithrespecttotherequirementsforthatproductandservice,oriftherearequestionsregardingtheaccuracyofthisStandardUL’sStandardsforSafetyarecopyrightedbyULNeitheraprintedcopyofaStandard,northedistributiondisketteforaStandardonDisketteandthefilefortheStandardonthedistributiondisketteshouldbealteredinanywayAllofUL’sStandardsandallcopyrights,ownerships,andrightsregardingthoseStandardsshallremainthesoleandexclusivepropertyofULAllrightsreservedNopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwisewithoutpriorpermissionofULRevisionsofULStandardsforSafetyareissuedfromtimetotimeAULStandardforSafetyiscurrentonlyifitincorporatesthemostrecentlyadoptedrevisionsULprovidesthisStandard″asis″withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantiesofmerchantabilityorfitnessforanypurposeInnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamages,includinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseofortheinabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthepossibilityofsuchdamageInnoeventshallUL’sliabilityforanydamageeverexceedthepricepaidforthisStandard,regardlessoftheformoftheclaimAUGUST,−ULtrCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULULwillattempttoanswersupportrequestsconcerningelectronicversionsofitsStandardsHowever,thissupportserviceisofferedonareasonableeffortsbasisonly,andULmaynotbeabletoresolveeverysupportrequestULsupportstheelectronicversionsofitsStandardsonlyiftheyareusedundertheconditionsandoperatingsystemsforwhichitisintendedUL’ssupportpoliciesmaychangefromtimetotimewithoutnotificationULreservestherighttochangetheformat,presentation,filetypesandformats,deliverymethodsandformats,andthelikeofbothitsprintedandelectronicStandardswithoutpriornoticePurchasersoftheelectronicversionsofUL’sStandardsforSafetyagreetodefend,indemnify,andholdULharmlessfromandagainstanyloss,expense,liability,damage,claim,orjudgement(includingreasonableattorney’sfees)resultingfromanyerrorordeviationintroducedwhilepurchaserisstoringanelectronicStandardonthepurchaser’scomputersystemIfasingleuserversionelectronicStandardwaspurchased,onecopyofthisStandardmaybestoredontheharddiskofasinglepersonalcomputer,oronasingleLANfileserverorthepermanentstoragedeviceofamultipleusercomputerinsuchamannerthatthisStandardmayonlybeaccessedbyoneuseratatimeandforwhichthereisnopossibilityofmultipleconcurrentaccessIfamultipleuserversionelectronicStandardwaspurchased,onecopyoftheStandardmaybestoredonasingleLANfileserver,oronthepermanentstoragedeviceofamultipleusercomputer,oronanIntranetserverThenumberofconcurrentusersshallnotexceedthenumberofusersauthorizedElectronicStandardsareintendedforonlineuse,suchasforviewingtherequirementsofaStandard,conductingawordsearch,andthelikeOnlyonecopyoftheStandardmaybeprintedfromeachsingleuserversionofanelectronicStandardOnlyonecopyoftheStandardmaybeprintedforeachauthorizeduserofamultipleuserversionofanelectronicStandardBecauseofdifferencesinthecomputersoftwareprintersetupusedbyULandthoseofelectronicStandardspurchasers,theprintedcopyobtainedbyapurchasermaynotlookexactlyliketheonlinescreenviewortheprintedStandardAnemployeeofanorganizationpurchasingaULStandardcanmakeacopyofthepageorpagesbeingviewedfortheirownfairandorpracticalinternaluseTherequirementsinthisStandardarenowineffect,exceptforthoseparagraphs,sections,tables,figures,andorotherelementsoftheStandardhavingfutureeffectivedatesasindicatedintheprefaceThepriortextforrequirementsthathavebeenrevisedandthathaveafutureeffectivedatearelocatedaftertheStandard,andareprecededbya″SUPERSEDEDREQUIREMENTS″noticeNewproductsubmittalsmadepriortoaspecifiedfutureeffectivedatewillbejudgedunderalloftherequirementsinthisStandardincludingthoserequirementswithaspecifiedfutureeffectivedate,unlesstheapplicantspecificallyrequeststhattheproductbejudgedunderthecurrentrequirementsHowever,iftheapplicantelectsthisoption,itshouldbenotedthatcompliancewithalltherequirementsinthisStandardwillberequiredasaconditionofcontinuedListingandFollowUpServicesaftertheeffectivedate,andunderstandingofthisshouldbesignifiedinwritingCopyright©UnderwritersLaboratoriesIncAUGUST,−ULtrCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULThisStandardconsistsofpagesdatedasshowninthefollowingchecklist:PageDateAugust,August,August,August,AUGUST,−ULtrCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULAUGUST,−ULtrNoTextonThisPageCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULAssociationofStandardizationandCertificationNMXJANCESecondEditionCanadianStandardsAssociationCSACNoFirstEditionUnderwritersLaboratoriesIncULFifthEditionMotorControlCentersAugust,(TitlePageReprinted:August,)ANSIULCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULCommitmentforAmendmentsThisstandardisissuedjointlybytheAssociationofStandardizationandCertification(ANCE),theCanadianStandardsAssociation(CSA),andUnderwritersLaboratoriesInc(UL)CommentsorproposalsforrevisionsonanypartofthestandardmaybesubmittedtoANCE,CSA,orULatanytimeRevisionstothisstandardwillbemadeonlyafterprocessingaccordingtothestandardsdevelopmentproceduresofANCE,CSA,andULCSAandULwillissuerevisionstothisstandardbymeansofaneweditionorrevisedoradditionalpagesbearingtheirdateofissueANCEwillincorporatethesamerevisionsintoaneweditionofthestandardbearingthesamedateofissueastheCSAandULpagesCopyright©ANCERightsreservedinfavorofANCEISBN©CanadianStandardsAssociationAllrightsreservedNopartofthispublicationmaybereproducedinanyformwhatsoeverwithoutthepriorpermissionofthepublisherISBNXCopyright©,UnderwritersLaboratoriesIncRevisionsofthisStandardwillbemadebyissuingrevisedoradditionalpagesbearingtheirdateofissueAULStandardiscurrentonlyifitincorporatesthemostrecentlyadoptedrevisions,allofwhichareitemizedonthetransmittalnoticethataccompaniesthelatestsetofrevisedrequirementsThemostrecentdesignationofANSIULasanAmericanNationalStandard(ANSI)occurredonAugust,ThisANSIULStandardforSafety,whichconsistsoftheFiftheditionwithrevisionsthroughAugust,,isundercontinuousmaintenance,wherebyeachrevisionisANSIapproveduponpublicationCommentsorproposalsforrevisionsonanypartoftheStandardmaybesubmittedtoULatanytimeProposalsshouldbesubmittedviaaProposalRequestinUL’sOnLineCollaborativeStandardsDevelopmentSystem(CSDS)athttp:csdsulcomTheDepartmentofDefense(DoD)hasadoptedULonApril,ThepublicationofrevisedpagesoraneweditionofthisStandardwillnotinvalidatetheDoDadoptionCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULCONTENTSPrefaceScopeProductscoveredProductsnotcoveredEquipmentUnitsofmeasurementNormativereferencesDefinitionsApplicationInformationandComponentsComponentsCharacteristicsGeneralVoltageratingsCurrentShortcircuitMarkingsandproductinformationIdentificationProductinformationMarkingInstallationinstructionsNormalserviceandtransportconditionsGeneralNormalserviceconditionsConstructionandperformancerequirementsGeneralassemblyConstructionrequirementsPerformancerequirementsMotorcontrolcentertestsGeneralCalibrationtestsTemperaturerisetestsOvervoltageandundervoltagetestDielectricvoltagewithstandtests(aftertemperaturerisetestorovervoltageundervoltagetest)CurrentwithstandtestDielectricvoltagewithstandtests(aftercurrentwithstandtest)ContactoroverloadtestDielectricvoltagewithstandtest(aftercontactoroverloadtest)Shortcircuittests–busstructureDielectricvoltagewithstandtest(aftershortcircuittest–busstructure)Shortcircuit(standardlevel)testsformotorcontrolcenterunitsDielectricvoltagewithstandtest(afterstandardlevelunitshortcircuittest)Tripouttestforcircuitbreakers(afterstandardlevelunitshortcircuittest)Shortcircuit(highlevel)testformotorcontrolcenterunitsDielectricvoltagewithstandtest(afterhighlevelshortcircuittest–motorcontrolcenterunits)Tripouttestforcircuitbreakers(afterhighlevelunitshortcircuittest)StrengthofinsulatingbaseandsupporttestsComparativedeflectiontestAUGUST,NMXJANCE♦CSACNO♦ULCopyrightUnderwritersLaboratoriesIncProvidedbyIHSunderlicensewithULNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS`,,```,,,,``````,,`,,`,`,,`ULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULAutotransformerstartertestFactorytests

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