Designation:D2400–99AnAmericanNationalStandardStandardSpecificationforVarnishedGlass-PolyesterClothUsedforElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD2400;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationappliestoblackandyellowvarnishedwovenclothandtapeforelectricalinsulation,havingasabasefabricpoly(ethyleneterephthalate)yarnsinthewarpdirectionandglassyarnsinthefillerdirection.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.2.ReferencedDocuments2.1ASTMStandards:D295TestMethodsforVarnishedCottonFabricsUsedforElectricalInsulation2D902TestMethodsforFlexibleResin-CoatedGlassFab-ricsandGlassFabricTapesUsedforElectricalInsulation2D1711TerminologyRelatingtoElectricalInsulation2D3487SpecificationforMineralInsulatingOilUsedinElectricalApparatus3D3636PracticeforSamplingandJudgingQualityofSolidElectricalInsulatingMaterials43.Terminology3.1Definitions:Fordefinitionsoftermsusedinthisspeci-ficationrefertoTerminologyD1711.4.OrderingInformation4.1Ordersformaterialcoveredbythisspecificationshallincludethefollowing:4.1.1Color:blackoryellow,4.1.2Nominalthickness,widthandlength,4.1.3Typeofsurface:greasyordry,4.1.4Coresizeandtype,4.1.5Typeofpacking:dryorinoil,4.1.6Numberofrollsperpackage,and4.1.7Markingonpackage.5.MaterialsandManufacture5.1Materials—Thebasefabricforallthicknessandcolorstylesshallhaveanominalthicknessof0.004in.(0.10mm)andawarpbyfillerthreadcountperinch(orcentimetre)of32(12.6)by28(11.0)respectively.Thevarnishshallbeoftheoleoresinoustype.Thewarpthreadsshallconsistof140deniercontinuousfilamentyarnshavingatwistof5turnsperinch,andthefillerthreadsshallconsistofECG-150-1/0yarns.5.2Splices—Thematerialshallnotbesplicedunlessagreeduponbythepurchaserandthemanufacturer.Ifitisnecessarytosplice,splicesshallnotoc...
