Designation:F819−10(Reapproved2015)StandardTerminologyRelatingtoElectricalProtectiveEquipmentforWorkers1ThisstandardisissuedunderthefixeddesignationF819;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.ReferencedDocuments1.1ASTMStandards:2F712TestMethodsandSpecificationsforElectricallyInsu-latingPlasticGuardEquipmentforProtectionofWorkersF1116TestMethodforDeterminingDielectricStrengthofDielectricFootwearF1117SpecificationforDielectricFootwear2.Terminologyafterflametime,n—thelengthoftimeinsecondsforwhichamaterialcontinuestoflameaftertheignitionsourcehasbeenremoved..DISCUSSION—Inarctesting,thelengthoftimeforwhichaspecimencontinuestoexhibitavisibleflamingasdeterminedbyatimedisplayvideorecordingofthespecimenduringarctestingarcduration,n—timedurationofthearc(s).arcenergy(vidt),n—sumoftheinstantaneousarcvoltagevaluesmultipliedbytheinstantaneousarccurrentvaluesmultipliedbytheincrementaltimevaluesduringthearc,(J).arcgap—distancebetweenthearcelectrodes(inch).Arcthermalperformancevalue(ATPV),n—inarctesting,theincidentenergyonafabricormaterialthatresultsina50%probabilitythatsufficientheattransferthroughthetestedspecimenispredictedtocausetheonsetofasecond-degreeskinburninjurybasedontheStollcurve..arcvoltage,n—voltageacrossthegapcausedbythecurrentflowingthroughtheresistancecreatedbythearcgap,V.asymmetricalarccurrent,n—thetotalarccurrentproducedduringclosure;itincludesadirectcomponentandasym-metricalcomponent,A.blanketroll-up—acontainermadefromfabricorsimilarmaterialandspecificallydesignedtoprotecttheblanketfromdamageduringstorageortransportation.blowout,n—theextinguishingofthearccausedbyamagneticfield.breakdown,electrical—theelectricaldischargeorarcoccur-ringbetweentheelectrodesandthroughtheequipmentbeingtested.bulkstorage—thestorageofhoseorcoverstogetherwi...
