BS 638-4-1996 电焊机电缆

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBS638:Part4:1996IncorporatingAmendmentNo.1ICS25.160.30NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWArcweldingpowersourcesequipmentandaccessoriesPart4.SpecificationforweldingcablesThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorBoard,waspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton15October1996©BSI1997FirstpublishedasBS638December1935SecondeditionDecember1941ThirdeditionFebruary1954FourtheditionDecember1966FirstpublishedasBS638:Part4:January1979SecondeditionOctober1996ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceWEE/6Draftforcomment94/705808DCISBN0580246922BS638:Part4:1996Issue2,September1997AmendmentsissuedsincepublicationAmd.No.DateTextaffected9640September1997IndicatedbyasidelineinthemarginCommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedtoTechnicalCommitteeWEE/6,Arcweldingplant,uponwhichthefollowingbodieswererepresented:BritishCableMakers'ConfederationElectricityAssociationHealthandSafetyExecutiveInstitutionofElectricalEngineersNationalAssociationofArcWeldingEquipmentRepairersPowerGenerationContractors'AssociationPGCA(BEAMALtd.)RailwayIndustryAssociationWeldingInstituteWeldingManufacturers'Association(BEAMALtd.)BS638:Part4:1996©BSI1996iContentsPageCommitteesresponsibleInsidefrontcoverForewordiiiSection1.General1.1Scope11.2References11.3Definitions1Section2.Arcweldingcablesratedat100Va.c.r.m.s2.1Codedesignations22.2Ratedvoltage22.3Conductors22.4Covering22.5Overalldiameter22.6Marking22.7Voltagetest42.8Testunderfireconditions42.9Staticflexibilitytest42.10Testoftheresistancetohotparticles42.11Scheduleoftests4Section3.Arcweldingcablesratedforuseupto450Va.c.r.m.s3.1Ratedvoltage63.2Conductors63.3Covering63.4Overalldiameter63.5Marking63.6Voltagetest73.7Testunderfireconditions73.8Staticflexibilitytest73.9Testoftheresistancetohotparticles73.10Scheduleoftests7AnnexesA(informative)Guidetouse9B(normative)Voltagetest13C(normative)Staticflexibilitytest13D(normative)Testoftheresistancetohotparticles13Tables1Constructionaldetailsforcableswithflexiblecopperconductors32Constructionaldetailsforcableswithextraflexiblecopperconductors33Constructionaldetailsforcableswithaluminiumoraluminiumalloyconductors34Valuesofmaximumdistanceinstaticflexibilitytest45Scheduleoftestrequirementsforarcweldingcablesratedat100Va.c.r.m.s56Constructionaldetailsofcableswithflexiblecopperconductors77Constructionaldetailsofcableswithaluminiumoraluminiumalloyconductors88Scheduleoftestrequirementsforarcweldingcablesratedforuseupto450Va.c.r.m.s8BS638:Part4:1996ii©BSI1996A.1Currentratingforrepeatcycleoperationbasedona10minperiod(copperconductors)10A.2Currentratingforrepeatcycleoperationbasedona10minperiod(aluminiumconductors)10A.3Currentratingforrepeatcycleoperationbasedona5minperiod(copperconductors)11A.4Currentratingforrepeatcycleoperationbasedona5minperiod(aluminiumconductors)11A.5Currentratingforsinglecycleoperationoveramaximumperiodof5min(copperconductors)11A.6Currentratingforsinglecycleoperationoveramaximumperiodof5min(aluminiumconductors)11A.7Deratingfactorsforaconductortemperatureof85ÊC(freeair,ambienttemperature25ÊC)12A.8Deratingfactorsforaconductortemperatureof60ÊC(freeair,ambienttemperature25ÊC)12A.9Voltagedropincopperconductorsatnormalandelevatedtemperatures(forguidanceonly)12A.10Voltagedropinaluminiumoraluminiumalloyconductorsatnormalandelevatedtemperatures(forguidanceonly)12A.11Minimumhandlingtemperatureforcoveringmaterials12FiguresC.1Staticflexibilitytestapparatus14D.1Devicefortestingresistancetohotparticles15ListofreferencesInsidebackcover©BSI1996iiiBS638:Part4:1996ForewordThisPartofBS638hasbeenpreparedbyTechnicalCommitteeWEE/6.ItsupersedesBS638:Part4:1979,whichiswithdrawn.ThisPartisdividedintothreesections:±ageneralsection;±asectionimplementingtheEuropeanHarmonizationDocumentHD22.6S2;±asectiononcablesofnationalinterestintheUnitedKingdomandnotincludedinHD22.6S2.NOTE.AnnexAisaguidetouse(andimplementsAmendmentNo.3ofHD516.S1).TheotherPartsofBS638areasfollows.Part5:SpecificationforaccessoriesPart7:SpecificationforsafetyrequirementsforinstallationandusePart8:SpecificationforelectrodeholdersandhandheldtorchesandgunsforMIG,MAGandTIGweldingPart9:SpecificationforpowersourcesformanualarcweldingwithlimiteddutyPart10:Specificationforsafetyrequirementsforarcweldingequipment:weldingpowersourcesThepreliminarydraftingofthisPartofBS638wasundertakenbytheBCMCtowhomdueacknowledgementismade.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.ivblankBS638:Part4:1996©BSI19961Section1.General1.1ScopeThisPartofBS638specifiesrequirementsforsinglecoreflexiblecablescarryingtheweldingcurrentinarcweldingcircuits.Section2specifiesrequirementsforarcweldingcablesratedforconnectionbetweentheindustrialarcweldingpowersourceandtheelectrodeholderandtheworkpieceinmanualmetal-ar