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首页 UL508标准

UL508标准.pdf

UL508标准

bland25
2011-02-13 0人阅读 举报 0 0 暂无简介

简介:本文档为《UL508标准pdf》,可适用于工程科技领域

ULISBNIndustrialControlEquipmentUnderwritersLaboratoriesInc(UL)PfingstenRoadNorthbrook,ILULStandardforSafetyforIndustrialControlEquipment,ULSeventeenthEdition,DatedJanuary,Revisions:ThisStandardcontainsrevisionsthroughandincludingJuly,ULisintheprocessofconvertingitsStandardsforSafetytotheStandardGeneralizedMarkupLanguage(SGML),andimplementinganSGMLcompliantdocumentmanagementandpublishingsystemSGMLaninternationalstandard(ISO)isadescriptivemarkuplanguagethatdescribesadocument’sstructureandpurpose,ratherthanitsphysicalappearanceonapageSignificantbenefitsthatwillresultfromUL’suseofSGMLandthesenewsystemsincludeincreasedproductivity,reducedturnaroundtimes,anddataandinformationconsistency,reusability,shareability,andportabilityHowever,thefonts,pagination,andgeneralformattingofUL’snewelectronicpublishingsystemdifferfromthatofUL’spreviouspublishingsystemConsequently,whenrevisionpagesareissuedforaStandardwiththenewpublishingsystem,thesedifferencesmayresultintheprintingofpagesonwhichnorequirementshavebeenchangedtheseadditionalpagesresultfromrelocationoftextduetorepaginationandreformattingoftheStandardwiththenewpublishingsystemTextthathasbeenchangedinanymannerismarkedwithaverticallineinthemarginChangesinrequirementsaremarkedwithaverticallineinthemarginandarefollowedbyaneffectivedatenoteindicatingthedateofpublicationorthedateonwhichthechangedrequirementbecomeseffectiveThenewandorrevisedrequirementsaresubstantiallyinaccordancewithUL’sBulletin(s)onthissubjectdatedJune,Thebulletin(s)isnowobsoleteandmaybediscardedThenewandrevisedrequirementswereoriginallypublishedasrevisionstothesixteentheditionofthisULStandardTheserequirementsarenowreissuedfor,andrenumberedinaccordancewith,theseventeentheditionofthisULStandardTherevisionsdatedJuly,includeaneditorialchangeintitleforUL,StandardforMoldedCaseCircuitBreakers,MoldedCaseSwitches,andCircuitBreakerEnclosuresAsindicatedonthetitlepage(page),thisULStandardforSafetyhasbeenadoptedbytheDepartmentofDefenseThemasterforthisStandardatUL’sNorthbrookOfficeistheofficialdocumentinsofarasitrelatestoaULserviceandthecomplianceofaproductwithrespecttotherequirementsforthatproductandservice,oriftherearequestionsregardingtheaccuracyofthisStandardUL’sStandardsforSafetyarecopyrightedbyULNeitheraprintedcopyofaStandard,northedistributiondisketteforaStandardonDisketteandthefilefortheStandardonthedistributiondisketteshouldbealteredinanywayAllofUL’sStandardsandallcopyrights,ownerships,andrightsregardingthoseStandardsshallremainthesoleandexclusivepropertyofULAllrightsreservedNopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwisewithoutpriorpermissionofULJULY,−ULtrRevisionsofULStandardsforSafetyareissuedfromtimetotimeAULStandardforSafetyiscurrentonlyifitincorporatesthemostrecentlyadoptedrevisionsULprovidesthisStandard″asis″withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantiesofmerchantabilityorfitnessforanypurposeInnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamages,includinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseofortheinabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthepossibilityofsuchdamageInnoeventshallUL’sliabilityforanydamageeverexceedthepricepaidforthisStandard,regardlessoftheformoftheclaimULwillattempttoanswersupportrequestsconcerningWordPerfect,Envoy,andStandardsonDisketteHowever,thissupportserviceisofferedonareasonableeffortsbasisonly,andULmaynotbeabletoresolveeverysupportrequestULsupportsaStandardsonDisketteonlyifitisusedundertheconditionsandoperatingsystemsforwhichitisintendedUL’ssupportpoliciesmaychangefromtimetotimewithoutnotificationULreservestherighttochangetheformat,presentation,filetypesandformats,deliverymethodsandformats,andthelikeofbothitsprintedandelectronicStandardswithoutpriornoticeStandardsonDiskettepurchasersagreetodefend,indemnify,andholdULharmlessfromandagainstanyloss,expense,liability,damage,claim,orjudgement(includingreasonableattorney’sfees)resultingfromanyerrorordeviationintroducedwhilepurchaserisstoringaStandardonDisketteonthepurchaser’scomputersystemIfasingleuserversionStandardsonDiskettewaspurchased,onecopyofthisStandardmaybestoredontheharddiskofasinglepersonalcomputer,oronasingleLANfileserverorthepermanentstoragedeviceofamultipleusercomputerinsuchamannerthatthisStandardmayonlybeaccessedbyoneuseratatimeandforwhichthereisnopossibilityofmultipleconcurrentaccessTheoriginaldistributiondisketteshouldbestoredinasafeplaceIfamultipleuserversionStandardsonDiskettewaspurchased,onecopyoftheStandardmaybestoredonasingleLANfileserver,oronthepermanentstoragedeviceofamultipleusercomputerThenumberofconcurrentusersshallnotexceedthenumberofusersauthorizedfortheStandardsonDisketteversionTheoriginaldistributiondisketteshouldbestoredinasafeplaceStandardsonDisketteareintendedforonlineuse,suchasforviewingtherequirementsofaStandard,conductingawordsearch,andthelikeOnlyonecopyoftheStandardmaybeprintedfromeachsingleuserversionofaStandardsonDisketteOnlyonecopyoftheStandardmaybeprintedforeachauthorizeduserofamultipleuserversionofaStandardsonDisketteAnemployeeofanorganizationpurchasingaStandardonDiskettecanmakeacopyofthepageorpagesbeingviewedfortheirownfairandorpracticalinternaluseBecauseofdifferencesinthecomputersoftwareprintersetupusedbyULandthoseofStandardsonDiskettepurchasers,theprintedcopyobtainedbyapurchasermaynotlookexactlyliketheonlinescreenviewortheprintedStandardTherequirementsinthisStandardarenowineffect,exceptforthoseparagraphs,sections,tables,figures,andorotherelementsoftheStandardhavingfutureeffectivedatesasindicatedinthenotefollowingtheaffecteditemThepriortextforrequirementsthathavebeenrevisedandthathaveafutureeffectivedatearelocatedaftertheStandard,andareprecededbya″SUPERSEDEDREQUIREMENTS″noticeJULY,−ULtrNewproductsubmittalsmadepriortoaspecifiedfutureeffectivedatewillbejudgedunderalloftherequirementsinthisStandardincludingthoserequirementswithaspecifiedfutureeffectivedate,unlesstheapplicantspecificallyrequeststhattheproductbejudgedunderthecurrentrequirementsHowever,iftheapplicantelectsthisoption,itshouldbenotedthatcompliancewithalltherequirementsinthisStandardwillberequiredasaconditionofcontinuedListing,Recognition,andFollowUpServicesaftertheeffectivedate,andunderstandingofthisshouldbesignifiedinwritingCopyright©UnderwritersLaboratoriesIncJULY,−ULtrThisStandardconsistsofpagesdatedasshowninthefollowingchecklist:PageDateJanuary,July,January,BJuly,January,BJuly,January,July,January,BJuly,January,July,January,BJuly,January,July,January,July,January,July,January,BJuly,January,July,January,July,January,AJuly,January,July,January,July,January,BJuly,January,July,January,AJuly,January,July,January,BJuly,January,July,January,AJuly,January,AJuly,January,JULY,−ULtrJuly,January,July,January,July,January,July,January,BJuly,January,July,January,July,January,BJuly,January,July,January,SASAJanuary,AJuly,AJanuary,BBJuly,SRS

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