1910.254-Arc-Welding-and-Cutting.-_-OSHA.pdfVIP专享VIP免费原创优质

10/3/20191910.254-Arcweldingandcutting.|OccupationalSafetyandHealthAdministrationhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.2541/7ByStandardNumber/1910.254-Arcweldingandcutting.PartNumber:1910PartNumberTitle:OccupationalSafetyandHealthStandardsSubpart:1910SubpartQSubpartTitle:Welding,CuttingandBrazingStandardNumber:1910.254Title:Arcweldingandcutting.GPOSource:e-CFR1910.254(a)General-1910.254(a)(1)Equipmentselection.Weldingequipmentshallbechosenforsafeapplicationtotheworktobedoneasspecifiedinparagraph(b)ofthissection.1910.254(a)(2)Installation.Weldingequipmentshallbeinstalledsafelyasspecifiedbyparagraph(c)ofthissection.1910.254(a)(3)Instruction.Workmendesignatedtooperatearcweldingequipmentshallhavebeenproperlyinstructedandqualifiedtooperatesuchequipmentasspecifiedinparagraph(d)ofthissection.1910.254(b)Applicationofarcweldingequipment-1910.254(b)(1)General.AssuranceofconsiderationofsafetyindesignisobtainablebychoosingapparatuscomplyingwiththeRequirementsforElectricArc-WeldingApparatus,NEMAEW-1-1962,NationalElectricalManufacturersAssociationortheSafetyStandardforTransformer-TypeArc-WeldingMachines,ANSIC33.2-1956,Underwriters'Laboratories,bothofwhichareincorporatedbyreferenceasspecifiedinSec.1910.6.1910.254(b)(2)Environmentalconditions.1910.254(b)(2)(i)Standardmachinesforarcweldingserviceshallbedesignedandconstructedtocarrytheirratedloadwithratedtemperatureriseswherethetemperatureofthecoolingairdoesnotexceed40deg.C.(104deg.F.)andwherethealtitudedoesnotexceed3,300feet(1,005.8m),andshallbesuitableforoperationinatmospherescontaininggases,dust,andlightraysproducedbytheweldingarc.1910.254(b)(2)(ii)Unusualserviceconditionsmayexist,andinsuchcircumstancesmachinesshallbeespeciallydesignedtosafelymeettherequirementsoftheservice.Chiefamongtheseconditionsare:10/3/20191910.254-Arcweldingandcutting.|OccupationalSafetyandHealthAdministrationhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.2542/71910.254(b)(2)(ii)(A)Exposuretounusuallycorrosivefumes.1910.254(b)(2)(ii)(B)Exposuretosteamorexcessivehumidity.1910.254(b)(2)(ii)(C)Exposuretoexcessiveoilvapor.1910.254(b)(2)(ii)(D)Exposuretoflammablegases.1910.254(b)(2)(ii)(E)Exposuretoabnormalvibrationorshock.1910.254(b)(2)(ii)(F)Exposuretoexcessivedust.1910.254(b)(2)(ii)(G)Exposuretoweather.1910.254(b)(2)(ii)(H)Exposuretounusualseacoastorshipboardconditions.1910.254(b)(3)Voltage.Thefollowinglimitsshallnotbeexceeded:1910.254(b)(3)(i)Alternating-currentmachines1910.254(b)(3)(i)(A)Manualarcweldingandcutting-80volts.1910.254(b)(3)(i)(B)Automatic(machineormechanized)arcweldingandcutting-100volts.1910.254(b)(3)(ii)Direct-currentmachines1910.254(b)(3)(ii)(A)Manualarcweldingandcutting-100volts.1910.254(b)(3)(ii)(B)Automatic(machineormechanized)arcweldingandcutting-100volts.1910.254(b)(3)(iii)Whenspecialweldingandcuttingprocessesrequirevaluesofopencircuitvoltageshigherthantheabove,meansshallbeprovidedtopreventtheoperatorfrommakingaccidentalcontactwiththehighvoltageby10/3/20191910.254-Arcweldingandcutting.|OccupationalSafetyandHealthAdministrationhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.2543/7adequateinsulationorothermeans.1910.254(b)(3)(iv)Fora.c.weldingunderwetconditionsorwarmsurroundingswhereperspirationisafactor,theuseofreliableautomaticcontrolsforreducingnoloadvoltageisrecommended...