标准规范下载简介
BS EN 489-2009 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聚乙烯外覆层的钢管用.pdfBRITISHSTANDARD
District heating pipes
GBT51149-2016 城市停车规划规范BSEN489:2009
District heating pipes
BSEN489:2009
This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2009 C BSI 2009
National foreword
Amendments/corrigendaissuedsincepublication
EUROPEANSTANDAR NORMEEUROPEENNE EUROPAISCHENORM
ICS 23.040.01
BS EN489:2009
Supersedes EN 489:2003
Supersedes EN 489:2003
EnglishVersion
2009CEN All rights of exploitation in any form and by any means reserved worldwideforCENnationalMembers.
2009CEN All rights of exploitation in any form and by any means reserved worldwideforCENnationalMembers
BSEN489:2009 EN489:2009(E)
BS EN489:2009 EN489:2009(E）
Bibliography
BSEN489:2009 EN489:2009(E)
This document(EN 489:2009)has been prepared by TechnicalCommittee CEN/TC 107“Prefabricated district heatingpipesystems",thesecretariatofwhichisheldbyDS. ThisEuropeanStandard shall begiven thestatusof anational standard,eitherbypublicationof anidentical text or by endorsement,at thelatestbySeptember 2009,and conflictingnational standards shallbe withdrawn at the latestbySeptember2009. Attention is drawnto thepossibility that some of theelementsof thisdocumentmaybethesubject ofpatentrights. CEN[and/orCENELEC]shall notbeheldresponsibleforidentifyinganyorallsuchpatentrights.
This document(EN 489:2009)hasbeenpreparedby Technical Committee CEN/TC107“Prefabricated district heatingpipesystems",thesecretariatofwhichisheldbyDS. ThisEuropeanStandardshallbegiven thestatusof anationalstandard,eitherbypublicationof anidentical text or byendorsement,atthe latestbySeptember 2009，and conflictingnational standards shallbewithdrawn at the latestbySeptember2009. Attention is drawnto thepossibility that some of theelementsof thisdocumentmaybethesubject ofpatent rights. CEN[and/orCENELEC]shall notbeheldresponsibleforidentifyinganyorallsuchpatentrights. ThicdocumontcunorcodocENL48o:2003
totheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefo are bound to implement this European Standard:Austria,Belgium,Bulgaria,Cyprus,Czech Re Estonia，Finland,France，Germany，Greece，Hungary,lceland，Ireland，Italy，Latvia,Lit urg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,S ndandtheUnitedKingdom.
Introduction
BSEN489:2009 EN489:2009(E）
The first edition of EN 489 was approved in1994 and updated in 2003.The main areas of this revision are the following: Requirementsforweldedjointshavebeenadded; Requirementsforjointsinsulatedwithprefabricatedjointinsulationhavebeenadded; RequirementsandtestmethodsforPURfoampropertieshavebeenliftedfromEN253intothisstandard; Requirementsformarkingofjointshavebeenadded. Thisspecification ispart of theseries of standardsforbondedsystemsusingpolyurethanefoam thermal insulation appliedtobondtoasteelservicepipeandapolyethylenecasing Forinformationontheminimumexpected thermal lifewithoperation atvarious temperatureswithrespect toPUR foamperformanceseeEN253:2009,AnnexB
BSEN489:2009 EN489:2009（E)
The abovementioned items shouldbe dealt with and the intention is toinclude theresults in thenextrevisionof this EuropeanStandard
Theabovementioned itemsshouldbedealtwithand theintentionistoincludetheresultsinthenextrevisionof thi EuropeanStandard
BSEN489:2009 EN489:2009(E）
Normativereferences
BSEN489:2009 EN489:2009(E)
prefabricatedjointinsulation jointinsulationmanufacturedbyinstallingprefabricatedelementsofpolyurethanefoaminthejointvolumepriortd installationofthejointcasing2)
3.9 surveillancesystem systemthatconsistsofmeasuringsectionsandmeasuringinstrumentsforsurveillanceofpipesystems
4.1.1Generalrequirementsforthejoint
1) ErnstKaufmann,050715 2)ErnstKaufmann.050715
watertight;
abletowithstandaxialforcesinitiatedbyaxialmovements abletowithstandradialforcesandbendingmoments;
BSEN489:2009 EN489:2009(E）
4.1.3Competenceof thewelderandfitter
Expectedthermallifeandlongtermtemperatur
Therequirementsforexpectedlifeandlongtermtemperatureresistanceshallbeinaccordar EN253:2009
Thesteelservicepipeweldshal
4.1.7Joint casing
Thejointcasingshallbetightagainstexternalwa
擂鼓坡大桥高墩专项施工方案BSEN489:2009 EN489:2009(E)
4.2.1Water tightness
4.2.2Soil stress test
4.2.3.2Cell structure
Theaveragesizeof thecellsinaradialdirectionshallbeless than0,5mm,determinedinaccordancewith5.4.5.1. The closed cell content determined in accordance with 5.4.5.2 shall be not less than 88 %.
Theaveragesizeof thecellsinaradialdirectionshallbelessthan0,5mm,determined inaccordancewith5.4.5.1. Theclo sedcellcontehtdetermllhedinac
4.2.3.3Foamdensity
DB37／T 5043-2021标准下载e densityof thefoamat anypositionshallbenot less than 60kg/mwhenmeasured in accordance specimenmayhaveadensitybelow60kg/m?
Whentestedinaccordancewith5.4.7,thewaterabsorptionafter90minof immersioninb exceed10%oftheoriginalvolume.