Designation:F712−06(Reapproved2011)StandardTestMethodsandSpecificationsforElectricallyInsulatingPlasticGuardEquipmentforProtectionofWorkers1ThisstandardisissuedunderthefixeddesignationF712;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthreeelectricaltestsonplasticguardsandassembledguardsystems.Theyare:1.1.1MethodA—Withstandvoltageprooftest,1.1.2MethodB—Flashovervoltage,and1.1.3MethodC—Leakagecurrent.1.1.4Thisspecificationcoversplasticguardequipmentandguardsystemsusedbyworkersfortemporaryinsulationonelectricpowercircuits.1.1.5Plasticguardequipmentcoveredbythisspecificationisratedformomentary,orbrushcontactonly.Maximum-usevoltagesarecoveredinTable1andTable2.1.2Thesetestmethodscover,butarenotlimitedto,thefollowingtypicalguards:1.2.1ConductorGuardsandConnectingCoversasfollows:1.2.1.1Lineguards,1.2.1.2Lineguardconnectors,1.2.1.3Insulatorcovers,1.2.1.4Dead-endcovers,1.2.1.5Busguards,and1.2.1.6Bus“T”guards.1.2.2StructureandApparatusCoversasfollows:1.2.2.1Poleguards,1.2.2.2Ridgepincovers,1.2.2.3Switchbladecovers,1.2.2.4Armguards,1.2.2.5Cutoutcovers,1.2.2.6Structuralbarriers,and1.2.2.7Crossarmguard.1.3Itiscommonpracticefortheuserofthisequipmenttoprepareinstructionsforthecorrectuseandmaintenance.1.4Theuseandmaintenanceofthisequipmentisbeyondthescopeofthesetestmethods.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.2.ReferencedDocuments2.1ASTMStandards:2D149Te...
