UL 60950-21-2003_en

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1、UL60950-21InformationTechnologyEquipment–Safety–Part 21:RemotePowerFeedingULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMULJANUARY31,2012−UL60950-21tr1ULStandardforSafetyforInformationTechnologyEquipment–Safety–Part21:RemotePowerFeeding, U

2、L60950-21FirstEdition,DatedNovember10,2003SummaryofTopicsThisrevisionofANSI/UL60950-21isbeingissuedtoreaffirmapprovalasanAmericanNational Standard.NochangesinrequirementsareinvolvedAsnotedintheCommitmentforAmendmentsstatementlocatedonthebacksideofthetitle page,ULandCSAarecommittedtoup

3、datingthisharmonizedstandardjointly.However,the revisionpagesdatedJanuary31,2012willnotbejointlyissuedbyULandCSAasthese revisionpagesonlyaddressULANSIapprovaldates.UL60950-21isanadoptionofIEC60950-21,InformationTechnologyEquipment–Safety–Part 21:RemotePowerFeeding(FirstEdition,issuedD

4、ecember2002).TextthathasbeenchangedinanymannerorimpactedbyUL’selectronicpublishingsystemismarked withaverticallineinthemargin.ThenewandrevisedrequirementsaresubstantiallyinaccordancewithProposal(s)onthissubjectdated October28,2011andJanuary5,2012.Allrightsreserved.Nopartofthispublicat

5、ionmaybereproduced,storedinaretrievalsystem,or transmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwise withoutpriorpermissionofUL.ULprovidesthisStandard″asis″withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantieso

6、fmerchantabilityorfitnessforanypurpose.InnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamages, includinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseoforthe inabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbee

7、nadvisedofthe possibilityofsuchdamage.InnoeventshallUL’sliabilityforanydamageeverexceedthepricepaidfor thisStandard,regardlessoftheformoftheclaim.UsersoftheelectronicversionsofUL’sStandardsforSafetyagreetodefend,indemnify,andholdUL harmlessfromandagainstanyloss,expense,liability,damag

8、e,cla