Designation:B286−07(Reapproved2017)StandardSpecificationforCopperConductorsforUseinHookupWireforElectronicEquipment1ThisstandardisissuedunderthefixeddesignationB286;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversuninsulatedmetallic-coatedcopperconductorsforuseinhookupwireforelectronicequipment.1.2TheSIvaluesfordensityaretoberegardedasstandard.Forallotherproperties,theinch-poundvaluesaretoberegardedasthestandard.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectondateofmaterialpurchaseformapartofthisspecificationtotheextentreferencedherein:2.2ASTMStandards:2B33SpecificationforTin-CoatedSoftorAnnealedCopperWireforElectricalPurposesB189SpecificationforLead-CoatedandLead-Alloy-CoatedSoftCopperWireforElectricalPurposesB193TestMethodforResistivityofElectricalConductorMaterialsB258SpecificationforNominalDiametersandCross-SectionalAreasofAWGSizesofSolidRoundWiresUsedasElectricalConductorsB298SpecificationforSilver-CoatedSoftorAnnealedCop-perWireB355SpecificationforNickel-CoatedSoftorAnnealedCop-perWire3.OrderingInformation3.1Ordersformaterialunderthisspecificationshallincludethefollowinginformation:3.1.1Quantityofeachsize,designation(Table1)andtype,3.1.2Conductorsize,designation,construction,andtype(Table1).3.1.3Whethertin,leadalloy,silver-coated,ornickel-coated(see4.1).3.1.4Forsilver-coatedconductorsandnickel-coatedconductors,classofcoating(see4.1),andwhenrequired,una...
