BRITISHSTANDARDBSEN50266-2-3:2001IncorporatingCorrigendumNo.1Commontestmethodsforcablesunderfireconditions—Testforverticalflamespreadofvertically-mountedbunchedwiresorcables—Part2-3:Procedures—CategoryBTheEuropeanStandardEN50266-2-3:2001hasthestatusofaBritishStandardICS13.220.40;29.060.20 CopyrightEuropeanCommitteeforElectrotechnicalStandardizationProvidedbyIHSunderlicensewithCENELECNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--````-`-`,,`,,`,`,,`---BSEN50266-2-3:2001ThisBritishStandard,havingbeenpreparedunderthedirectionoftheElectrotechnicalSectorCommittee,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15August2001©BSI30September2002ISBN0580380327NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN50266-2-3:2001,includingCorrigendumMarch2002.TogetherwithBSEN50266-1,BSEN50266-2-1,BSEN50266-2-2;BSEN50266-2-4andBSEN50266-2-5,itsupersedesBS4066-3:1994whichiswithdrawn.BS4066-3:1994hadanumberoftestcategories.AllthesetestcategoriesareretainedinBSEN50266,andcanbefoundintherespectivepartsofthenewpublicationasfollows:TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeGEL/20,Electriccables,toSubcommitteeGEL/20/3,Insulationandsheath,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.TestcategoryinBS4066-3EquivalentpartofBSEN50266aAF/RBSEN50266-2-1ABSEN50266-2-2BBSEN50266-2-3CBSEN50266-2-4—BSEN50266-2-5baInallcases,theparticularpartistobeusedinconjunctionwithBSEN50266-1,whichdescribesthetestapparatus.bThispartdescribesCategoryD,whichdidnotformpartofBS4066-3.—aidenquirerstounderstandthetext;—presenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to11andabackcover.TheBSIcopyrightdatedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateComments13854CorrigendumNo.130September2002ChangetodateofwithdrawalinENforewordCopyrightEuropeanCommitteeforElectrotechnicalStandardizationProvidedbyIHSunderlicensewithCENELECNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--````-`-`,,`,,`,`,,`---EUROPEANSTANDARDEN50266-2-3NORMEEUROPÉENNEEUROPÄISCHENORMFebruary2001CENELECEuropeanCommitteeforElectrotechnicalStandardizationComitéEuropéendeNormalisationElectrotechniqueEuropäischesKomiteefürElektrotechnischeNormungCentralSecretariat:ruedeStassart35,B-1050Brussels©2001CENELEC-AllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENELECmembers.Ref.No.EN50266-2-3:2001EICS13.220.40;29.020;29.060.20SupersedesHD405.3S1:1993IncorporatingcorrigendumMarch2002EnglishversionCommontestmethodsforcablesunderfireconditions-Testforverticalflamespreadofvertically-mountedbunchedwiresorcablesPart2-3:Procedures-CategoryBMéthodesd'essaicommunesauxcâblessoumisaufeu-EssaidepropagationverticaledelaflammedesfilsoucâblesennappesenpositionverticalePartie2-3:Procédures-CatégorieBAllgemeinePrüfverfahrenfürKabelundisolierteLeitungenimBrandfall-PrüfungdersenkrechtenFlammenausbreitungvonsenkrechtangeordnetenBündelnvonKabelnundisoliertenLeitungenTeil2-3:Prüfverfahren-PrüfartBThisEuropeanStandardwasapprovedbyCENELECon2000-08-01.CENELECmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENELECmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENELECmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENELECmembersarethenationalelectrotechnicalcommitteesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.CopyrightEuropeanCommitteeforElectrotechnicalStandardizationProvidedbyIHSunderlicensewithCENELECNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--````-`-`,,`,,`,`,,`---EN50266-2-3:2001-2-ForewordThisEuropeanStandardwaspreparedbyWorkingGroup10oftheTechnicalCommitteeCENELECTC20,