BRITISHSTANDARDBSEN50121-1:2006Railwayapplications—Electromagneticcompatibility—Part1:GeneralTheEuropeanStandardEN50121-1:2006hasthestatusofaBritishStandardICS29.020;29.280;45.020 ©BSI2006ISBN0580491072NationalforewordThisBritishStandardwaspublishedbyBSI.ItistheUKimplementationofEN50121-1:2006.ItsupersedesBSEN50121-1:2000whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeGEL/9,Railwayelectrotechnicalapplications.AlistoforganizationsrepresentedonGEL/9canbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.AmendmentsissuedsincepublicationAmd.No.DateComments©2006CENELEC-AllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENELECmembers.Ref.No.EN50121-1:2006EICS29.020;29.280;45.020SupersedesEN50121-1:2000EnglishversionRailwayapplications-ElectromagneticcompatibilityPart1:GeneralApplicationsferroviaires-CompatibilitéélectromagnétiquePartie1:GénéralitésBahnanwendungen-ElektromagnetischeVerträglichkeitTeil1:AllgemeinesThisEuropeanStandardwasapprovedbyCENELECon2006-07-01.CENELECmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENELECmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENELECmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENELECmembersarethenationalelectrotechnicalcommitteesofAustria,Belgium,Cyprus,theCzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,theNetherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.:2000.Thefollowingdateswerefixed:–latestdatebywhichtheENhastobeimplementedatnationallevelbypublicationofanidenticalnationalstandardorbyendorsement(dop)2007-07-01–latestdatebywhichthenationalstandardsconflictingwiththeENhavetobewithdrawn(dow)2009-07-01ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENELECbytheEuropeanCommissionandtheEuropeanFreeTradeAssociationandcoversessentialrequirementsofECDirective89/336/EEC.SeeAnnexZZ.__________–2–EN50121-1:2006(informative)Therailwaysystem.........................................................................................8AnnexZZ(informative)CoverageofEssentialRequirementsofECDirectives................................13–3–EN50121-1:2006(EM)emissionoftherailwayasawholetotheoutsideworldandfortheEMemissionandimmunityforequipmentoperatingwithintherailway.ThelattermustbecompatiblewiththeemissionlimitssetfortherailwayasawholeandalsoprovidesforestablishingconfidenceinequipmentbeingFitForPurposeintheRailwaye