EN 1794-2-2011(E) Road traffic noise reducing devi

EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN1794-2January2011ICS93.080.30SupersedesEN1794-2:2003EnglishVersionRoadtrafficnoisereducingdevices-Non-acousticperformance-Part2:GeneralsafetyandenvironmentalrequirementsDispositifsderéductiondubruitdutraficroutier-Performancesnonacoustiques-Partie2:Exigencesgénéralespourlasécuritéetl'environnementLärmschutzeinrichtungenanStraßen-NichtakustischeEigenschaften-Teil2:AllgemeineSicherheits-undUmweltanforderungenThisEuropeanStandardwasapprovedbyCENon10December2010.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:AvenueMarnix17,B-1000Brussels©2011CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN1794-2:2011:EEN1794-2:2011(E)2ContentspageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope..............................................................................................................................................................52Normativereferences....................................................................................................................................53Terms,definitionsandsymbols...................................................................................................................53.1Termsanddefinitions...................................................................................................................................53.2Symbols..........................................................................................................................................................54Requirements.................................................................................................................................................64.1Resistancetobrushfire................................................................................................................................64.2Secondarysafety(fallingdebris).................................................................................................................64.3Environmentalprotection.............................................................................................................................64.4Meansofescapeinemergency....................................................................................................................64.5Reflectionoflight...........................................................................................................................................64.6Transparency.................................................................................................................................................75Testreport......................................................................................................................................................7AnnexA(normative)Resistancetobrushwoodfire..............................................................................................8AnnexB(normative)Secondarysafety:dangeroffallingdebris......................................................................10AnnexC(normative)Environmentalprotection...................................................................................................14AnnexD(normative)Meansofescapeinemergency.........................................................................................15AnnexE(normative)Lightreflection.....................................................................................................................16AnnexF(informative)Transparency.....................................................................................................................18Bibliography...................................................................................