Designation:D150−11StandardTestMethodsforACLossCharacteristicsandPermittivity(DielectricConstant)ofSolidElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD150;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thesetestmethodscoverthedeterminationofrelativepermittivity,dissipationfactor,lossindex,powerfactor,phaseangle,andlossangleofspecimensofsolidelectricalinsulatingmaterialswhenthestandardsusedarelumpedimpedances.Thefrequencyrangeaddressedextendsfromlessthan1Hztoseveralhundredmegahertz.NOTE1—Incommonusage,thewordrelativeisfrequentlydropped.1.2Thesetestmethodsprovidegeneralinformationonavarietyofelectrodes,apparatus,andmeasurementtechniques.AreaderinterestedinissuesassociatedwithaspecificmaterialneedstoconsultASTMstandardsorotherdocumentsdirectlyapplicabletothematerialtobetested.2,31.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.2.6.1and10.2.1.2.ReferencedDocuments2.1ASTMStandards:4D374TestMethodsforThicknessofSolidElectricalInsu-lation(Withdrawn2013)5D618PracticeforConditioningPlasticsforTestingD1082TestMethodforDissipationFactorandPermittivity(DielectricConstant)ofMicaD1531TestMethodsforRelativePermittivity(DielectricConstant)andDissipationFactorbyFluidDisplacementProcedures(Withdrawn2012)5D1711TerminologyRelatingtoElectricalInsulationD5032PracticeforMaintainingConstantRelativeHumiditybyMeansofAqueousGlycerinSolutionsE104PracticeforMaintainingConstantRelativeHumiditybyMeansofAqueousSolutionsE197SpecificationforEnclosuresandServicingUnit...
