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1、BRITISHSTANDARDBSEN60921:2004IncorporatingAmendmentNo.1Ballastsfortubularfluorescentlamps—PerformancerequirementsTheEuropeanStandardEN60921:2004,withtheincorporationofamendmentA1:2006,hasthestatusofaBritishStandardLicensedCopy:sheffieldunsheffieldun,n
2、a,FriNov1016:29:50GMT+00:002006,UncontrolledCopy,(c)BSIICS29.140.30
BSEN60921:2004NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN60921:2004,includingamendmentA
3、1:2006.ItisidenticalwithIEC60921:2004,includingamendment1:2006.ItsupersedesBSEN60921:1991whichwillbewithdrawnon1October2011.ThestartandfinishoftextintroducedoralteredbyIECamendmentisindicatedinthetextbytags!".TagsindicatingchangestoIECtextcarrythenumb
4、eroftheIECamendment.Forexample,textalteredbyIECamendment1isindicatedby!".TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeCPL/34,Lampsandrelatedequipment,toSubcommitteeCPL/34/3,Auxiliariesforlamps,whichhastheresponsibilityto:—aidenqui
5、rerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeepUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizat
6、ionsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandards
7、CorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandar
8、ddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to32,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentw
