BS EN 12953-3 2002

BRITISHSTANDARDBSEN12953-3:2002Shellboilers—Part3:DesignandcalculationforpressurepartsTheEuropeanStandardEN12953-3:2002hasthestatusofaBritishStandardICS27.060.30;27.100NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:43GMT+00:002007,UncontrolledCopy,(c)BSIBSEN12953-3:2002ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorPolicyandStrategyCommittee,waspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon14June2002©BSI14June2002ISBN058039851XNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12953-3:2002.ItpartiallysupersedesBS2790:1992whichwillbewithdrawnonpublicationofBSEN12953Parts1,2,3,4,5,6,8and9.WhenthereferencetothisEuropeanStandardhasbeenpublishedintheOfficialJournaloftheEuropeanCommunities(OJ),compliancewithitwillconferapresumptionofconformitywiththeessentialrequirementscoveredbythestandardinrespectofthePressureEquipmentDirective.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePVE/16,Shellboilers,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersofthispublicationareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to90,aninsidebackcoverandabackcover.TheBSIcopyrightdatedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:43GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN12953-3May2002ICS27.060.30;27.100EnglishversionShellboilers-Part3:DesignandcalculationforpressurepartsChaudièresàtubesdefumée-Partie3:ConceptionetcalculdespartiessouspressionGroßwasserraumkessel-Teil3:KonstruktionundBerechnungfürdrucktragendeTeileThisEuropeanStandardwasapprovedbyCENon15May2002.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2002CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12953-3:2002ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:43GMT+00:002007,UncontrolledCopy,(c)BSIEN12953-3:2002(E)2ContentsPageForeword......................................................................................................................................................................41Scope..............................................................................................................................................................52Normativereferences....................................................................................................................................53Termsanddefinitions....................................................................................................................................54Symbolsandabbreviations..........................................................................................................................55General............................................................................................................................................................55.1Boilers.............................................................................................................................................................55.2Hot-watergenerators.........................