Designation:F2320−11StandardSpecificationforRubberInsulatingSheeting1ThisstandardisissuedunderthefixeddesignationF2320;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstestingofrubberinsulatingsheetingforuseasacoveringfortheprotectionofworkersfromaccidentalcontactwithliveelectricalconductors,appa-ratus,orcircuits.1.2Twotypesofsheeting,differinginchemicalandphysi-calcharacteristics,areprovidedandaredesignatedasTypeI,non-resistanttoozoneandTypeII,resistanttoozone.1.3Sixclassesofsheeting,differinginelectricalprotectioncharacteristicsareprovidedanddesignatedasClass00,Class0,Class1,Class2,Class3,Class4.1.4Twostylesofsheeting,differinginconstructioncharac-teristics,areprovidedandaredesignatedasStyleAandStyleB.1.5Thefollowsafetyhazardscaveatappliesonlytothetestmethodportion,Sections17-19,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequire-mentspriortouse.NOTE1—RubberInsulatingSheetingshouldremainflexibleforusethroughnormaltemperatureranges.NOTE2—Rubberasusedinthisspecificationisagenerictermthatincludeselastomersandelastomericcompounds,regardlessoforigin.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD471TestMethodforRubberProperty—EffectofLiquidsD518TestMethodforRubberDeterioration—SurfaceCracking(Withdrawn2007)3D570TestMethodforWaterAbsorptionofPlasticsD751TestMethodsforCoatedFabricsD1048SpecificationforRubberInsulatingBlanketsD1149TestMethodsforRubberDe...
