BSEN4892009区域供暖管道直埋式热水管网用预先绝热有包覆管层的管道系统聚氨基甲酸乙酯热绝缘和

BSEN489:2009ICS23.040.01;91.140.60NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDDistrictheatingpipes—Preinsulatedbondedpipesystemsfordirectlyburiedhotwaternetworks—Jointassemblyforsteelservicepipes,polyurethanethermalinsulationandoutercasingofpolyethyleneThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31May2009©BSI2009ISBN9780580573583Amendments/corrigendaissuedsincepublicationDateCommentsBSEN489:2009NationalforewordThisBritishStandardistheUKimplementationofEN489:2009.ItsupersedesBSEN489:2003whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeRHE/9,Insulatedundergroundpipelines.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.BSEN489:2009EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN489March2009ICS23.040.01SupersedesEN489:2003EnglishVersionDistrictheatingpipes-Preinsulatedbondedpipesystemsfordirectlyburiedhotwaternetworks-Jointassemblyforsteelservicepipes,polyurethanethermalinsulationandoutercasingofpolyethyleneTuyauxdechauffageurbain-Systèmesbloquésdetuyauxpréisoléspourlesréseauxd'eauchaudeenterrésdirectement-Assemblagepréisolépourtubedeserviceenacier,isolationthermiqueenpolyuréthaneettubedeprotectionenpolyéthylèneFernwärmerohre-WerkmäßiggedämmteVerbundmantelrohrsystemefürdirekterdverlegteFernwärmenetze-RohrverbindungenfürStahlmediumrohremitPolyurethan-WärmedämmungundAußenmantelausPolyethylenThisEuropeanStandardwasapprovedbyCENon31January2009.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,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©2009CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN489:2009:EBSEN489:2009EN489:2009(E)2ContentspageForeword......................................................................................................................................................................4Introduction.................................................................................................................................................................51Scope..............................................................................................................................................................72Normativereferences....................................................................................................................................73Termsanddefinitions...................................................................................................................................84Requirements.................................................................................................................................................84.1Generalrequirements....................................................................................................................................84.1.1Generalrequirementsforthejoint...............................................................................................................84.1.2Installationofthejoint..................................................................................................................................94.1.3Competenceofthewelderandfitter............................................................................................................94.1.4Expectedthermallifeandlongtermtemperatureresistance...................................................................94.1.5Steelservicepipeweld.................................................................................................................................94.1.6Polyurethanerigidfoaminsulation(PUR)..................................................................................................94.1.7Jointcasing....................................................................................................................................................94.2