UL1581-2011

DocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULUL1581ReferenceStandardforElectricalWires,Cables,andFlexibleCordsDocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULDocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULULStandardforSafetyforElectricalWires,Cables,andFlexibleCords,UL1581FourthEdition,DatedOctober31,2001SummaryofTopics:ThisrevisiontoANSI/UL1581includesthefollowingchangeinrequirements:ReinstatementofSeveralPhysicalPropertiesTablesDeletionofConstructionRequirementsforCPEInsulationforTypeRHWfromTable50.34AdditionofTestSpeedsandDeletionofDensityRequirementsforPEMaterialsinTables50.134and50.136RevisionofDescriptionofCottonUsedinFlameTestsAdditionofPhysicalPropertiesRequirementsforPVC/PolyurethaneBlendTextthathasbeenchangedinanymannerorimpactedbyUL’selectronicpublishingsystemismarkedwithaverticallineinthemargin.Changesinrequirementsaremarkedwithaverticallineinthemarginandarefollowedbyaneffectivedatenoteindicatingthedateofpublicationorthedateonwhichthechangedrequirementbecomeseffective.Thenewand/orrevisedrequirementsaresubstantiallyinaccordancewithProposal(s)onthissubjectdatedSeptember24,2010.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwisewithoutpriorpermissionofUL.ULprovidesthisStandard″asis″withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantiesofmerchantabilityorfitnessforanypurpose.InnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamages,includinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseofortheinabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthepossibilityofsuchdamage.InnoeventshallUL’sliabilityforanydamageeverexceedthepricepaidforthisStandard,regardlessoftheformoftheclaim.UsersoftheelectronicversionsofUL’sStandardsforSafetyagreetodefend,indemnify,andholdULharmlessfromandagainstanyloss,expense,liability,damage,claim,orjudgment(includingreasonableattorney’sfees)resultingfromanyerrorordeviationintroducedwhilepurchaserisstoringanelectronicStandardonthepurchaser’scomputersystem.TherequirementsinthisStandardarenowineffect,exceptforthoseparagraphs,sections,tables,figures,and/orotherelementsoftheStandardhavingfutureeffectivedatesasindicatedinthenotefollowingtheaffecteditem.ThepriortextforrequirementsthathavebeenrevisedandthathaveafutureeffectivedatearelocatedaftertheStandard,andareprecededbya″SUPERSEDEDREQUIREMENTS″notice.APRIL15,2011−UL1581tr1DocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULAPRIL15,2011−UL1581tr2NoTextonThisPageDocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULOCTOBER31,2001(TitlePageReprinted:April15,2011)1UL1581ReferenceStandardforElectricalWires,Cables,andFlexibleCordsFirstEdition–August,1983SecondEdition–December,1991ThirdEdition–October,1997FourthEditionOctober31,2001ThisANSI/ULStandardforSafetyconsistsoftheFourthEditionincludingrevisionsthroughApril15,2011.ThemostrecentdesignationofANSI/UL1581asanAmericanNationalStandard(ANSI)occurredonApril15,2011.ANSIapprovalforastandarddoesnotincludetheCoverPage,TransmittalPages,TitlePage,oreffectivedateinformation.CommentsorproposalsforrevisionsonanypartoftheStandardmaybesubmittedtoULatanytime.ProposalsshouldbesubmittedviaaProposalRequestinUL’sOn-LineCollaborativeStandardsDevelopmentSystem(CSDS)at’sStandardsforSafetyarecopyrightedbyUL.NeitheraprintednorelectroniccopyofaStandardshouldbealteredinanyway.AllofUL’sStandardsandallcopyrights,ownerships,andrightsregardingthoseStandardsshallremainthesoleandexclusivepropertyofUL.COPYRIGHT©2011UNDERWRITERSLABORATORIESINC.ANSI/UL1581-2011DocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULAPRIL15,2011UL15812NoTextonThisPageDocumentWasDownloadedByTerrykwongForUseByWINGKEIELECTRICALCOLTD11146:12/23/2011-6:49AMULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULCONTENTSINTRODUCTION1Scope..............................................................................112UnitsofMeasurement................................................................113ReferencesandTerms...............................................................114–9Re