Designation:D3353−10StandardTestMethodsforFibrous-InsulatedMagnetWire1ThisstandardisissuedunderthefixeddesignationD3353;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thesetestmethodscoverthetestingoffibrous-insulatedelectricalconductors,commonlyreferredtoasmagnetwire,whichareusedinelectricalapparatus.Thetestmethodsareintendedprimarilyforevaluationoftheelectricalinsulatingmaterialsused.Itisintendedthatthesetestmethodsbeused,exceptwheremodifiedbyindividualspecificationsforparticu-larapplications.1.1.1Thesetestmethodsapplytothosemagnetwiresthatarefiber-coveredandinwhichthesubstrateisbareconductororiscoatedwithanunderlyinginsulatingfilmascoveredbyTestMethodsD1676.Fiber-coveredwiresareproducedbyservinghelicallyorwrappingfibersorfibrous-tapeinsulationuniformlyaroundthewireinsingleandmultiplelayers.Theservedorwrappedmaterialsarebondedornotbondedtotheunderlyingwire.1.2Thetestmethodsappearinthefollowingsections:ProcedureSectionMeasurementofDimensions7ElectricalResistanceofConductors5Elongation4AdhesionandFlexibility8FibrousCoverage6DielectricBreakdownVoltage91.3ThisstandardandIEC60851aresimilarifnotequiva-lentintechnicalcontent.1.4ThisstandardandNEMAMW1000aresimilarifnotequivalentintechnicalcontent.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.See8.4.1and9.4.1forspecificcautionstatements.2.ReferencedDocuments2.1ASTMStandards:2B193TestMethodforResistivityofElectricalConductorMateri...
