BS-1722-1-2006-Fences.-Specification-for-chain-lin

BS1722-1:2006Fences–Part1:SpecificationforchainlinkfencesICS91.090NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDLicensedcopy:PONTYPRIDDCOLLEGE,14/07/2007,UncontrolledCopy,©BSIPublishingandcopyrightinformationTheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.©BSI2006ISBN0580495019ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceB/201Draftforcomment06/30139495DCPublicationhistoryFirstpublishedMarch1951SecondeditionAugust1963ThirdeditionJune1972FourtheditionJune1986Fifth(present)editionNovember2006AmendmentsissuedsincepublicationAmd.no.DateTextaffectedBS1722-1:2006Licensedcopy:PONTYPRIDDCOLLEGE,14/07/2007,UncontrolledCopy,©BSI©BSI2006•iBS1722-1:2006ContentsForewordii1Scope12Normativereferences13Termsanddefinitions34Dimensionsandgeneralcharacteristics55Additionalsecurity86Materialsandconstruction87Installation188Gates229Renovationofdamagetohotdipgalvanizedcoating2210Statementofconformity23AnnexesAnnexA(normative)Concretecomponents24AnnexB(normative)Steelcomponentsandprotectivetreatments26AnnexC(informative)Specifyingachainlinkfence27AnnexD(informative)Determinationofmoisturecontent30Bibliography31ListoffiguresFigure1–Generalcharacteristicsofachainlinkfence3ListoftablesTable1–Generalcharacteristicsofchainlinkfenceswithzinc(Z)orzincalloy(ZA)coatedmesh6Table2–Generalcharacteristicsofchainlinkfenceswithplasticscoatedmesh7Table3–Concretepostsandstruts10Table4–Recommendeddimensionsforsteelpostsandstruts13Table5–Recommendeddimensionsforsteelgatepostsforgatesupto2.15m13Table6–Steelgateframesandbracesforgatesupto2.15m14Table7–Timberfencepostsandstruts16TableB.1–Recommendedsteelgrades27TableD.1–Determinationofmoisturecontentoftimbertobetreatedforuseinfencing30SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesitoiv,pages1to31andabackcover.Licensedcopy:PONTYPRIDDCOLLEGE,14/07/2007,UncontrolledCopy,©BSIBS1722-1:2006ii•©BSI2006ForewordPublishinginformationThispartofBS1722waspublishedbyBSIandcameintoeffecton30November2006.ItwaspreparedbyTechnicalCommitteeB/201,Fencesandgates.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.SupersessionThispartofBS1722supersedesBS1722-1:1999,whichiswithdrawn.RelationshipwithotherpublicationsBS1722ispublishedinpartsasfollows:•Part1:Specificationforchainlinkfences;•Part2:Specificationforstrainedwireandwiremeshnettingfences;•Part4:Specificationforcleftchestnutpalefences;•Part5:Specificationforclose-boardedandwoodenpalisadefences;•Part7:Specificationforwoodenpostandrailfences;•Part8:Specificationformildsteel(lowcarbonsteel)continuousbarfencesandhurdles;•Part9:Specificationformildsteel(lowcarbonsteel)fenceswithroundorsquareverticalsandflathorizontals;•Part10:Specificationforanti-intruderfencesinchainlinkandweldedmesh;•Part11:Specificationforprefabricatedwoodpanelfences;•Part12:Specificationforsteelpalisadefences;•Part13:Chainlinkfencesfortenniscourtsurrounds1);•Part14:Specificationforopenmeshsteelpanelfences;•Part16:Specificationfororganicpowdercoatingstobeusedasaplasticsfinishtocomponentsandmesh;•Part17:Specificationforelectricsecurityfences–Design,installationandmaintenance;•Part18:Specificationforsteelmeshsiteperimetertemporaryfencingsystems2).InformationaboutthisdocumentItshouldbenotedthatnoattempthasbeenmadetostandardizefencesorgatesofapurelydecorativenature,orthosesuitedtospecialrequirements;nortospecifyrequirementsfor“patent”proprietaryfencingsystems.However,thestructureofsuchfencesorgatesshouldbeinaccordancewiththeapplicableclausesofthispartofBS1722.1)Obsolescent.2)Part18isindevelopmentandwillbepublishedasaDraftforDevelopment(DD).Licensedcopy:PONTYPRIDDCOLLEGE,14/07/2007,UncontrolledCopy,©BSI©BSI2006•iiiBS1722-1:2006Thisstandardaimstoestablishminimumrequirementsformaterialsandworkmanshipofthemorecommontypesoffenceinordertoensuresatisfactoryserviceforthepurchaser,andtoassistmanufacturersandinstallingcontractorsbyeliminatingunnecessaryminorvariationsinthedemandsofpurchasers.Itspecifiesrequirementsforthecomponentsthatmakeupafenceandthewayinwhichthefenceneedstobeconstructed.Choosingasuitablefenceisaffectedbyfactorssuchasintendedpurpose,desiredservicelife,aestheticconsiderations,andavailabilityofcomponents.ThespecifiercanmatchasuitablechoiceoffencetoitsintendedpurposebyreferencetoTable1andTable2,andalsoinformthoseinstallingthefenceofthebasiccharacteristicsrequired.Prematurefailureofthefencecanbeavoidedbytakingcareneithertooverstraincoatedwireortodamageprotectivetreatmentsduringinstallation.Groundconditionsmightindicatethatavariationinthelengthofapostorstrut,orthedepthtowhichthesewouldbeset,isdesirable.Thepostsandstrutsandsettingdepthsspecifiedinthisstandardareintendedforuseinnormalgroundconditions,butifspecialconditionsexistthatwarrantvariationsinthespecification,e.g.thegroundissofterorfirmerthanusual,suchachangeshouldbeagreedwiththespecifier.UseofthisdocumentIthasbeenassumedinthedraftingofthispartofBS1722thattheexecutionofitsprovisionisentrustedtoappropriat