Designation:F2320−18StandardSpecificationforRubberInsulatingSheeting1ThisstandardisissuedunderthefixeddesignationF2320;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstestingofrubberinsulatingsheetingforuseasacoveringfortheprotectionofworkersfromaccidentalcontactwithliveelectricalconductors,apparatus,orcircuits.1.2Twotypesofsheeting,differinginchemicalandphysi-calcharacteristics,areprovidedandaredesignatedasTypeI,non-resistanttoozoneandTypeII,resistanttoozone.1.3Threeclassesofsheeting,differinginelectricalprotec-tioncharacteristicsareprovidedanddesignatedasClass00,Class0,andClass1.1.4Twostylesofsheeting,differinginconstructioncharacteristics,areprovidedandaredesignatedasStyleAandStyleB.1.5Thefollowsafetyhazardscaveatappliesonlytothetestmethodportion,Sections17–19,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.NOTE1—RubberInsulatingSheetingshouldremainflexibleforusethroughnormaltemperatureranges.NOTE2—Rubberasusedinthisspecificationisagenerictermthatincludeselastomersandelastomericcompounds,regardlessoforigin.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD412TestMethodsforVulcanizedRubberandThermoplas-ti...
