Designation:D4880−14StandardTestMethodforSaltWaterProofnessofInsulatingVarnishesOverEnamelledMagnetWire1ThisstandardisissuedunderthefixeddesignationD4880;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoverstheelectricalperformanceinaspecifiedwatersolutionofaninsulatingvarnishappliedoverenamelledmagnetwire.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinforma-tiononlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninSection6.NOTE1—ThereisnoIECmethodequivalenttothisstandard.2.ReferencedDocuments2.1ASTMStandards:2D1676TestMethodsforFilm-InsulatedMagnetWireD1711TerminologyRelatingtoElectricalInsulation3.Terminology3.1Definitions:3.1.1FordefinitionsoftermsusedinthistestmethodrefertoTerminologyD1711.3.1.2varnish,electricalinsulating,n—aliquidresinsystemthatisappliedtoandcuredonelectricalcomponentsprovidingelectrical,mechanical,andenvironmentalprotection.3.1.2.1Discussion—Therearetwotypesofelectricalinsu-latingvarnish—solvent–containingandsolventless.Thesolvent-containingvarnishissolution,dispersion,oremulsionofapolymeroramixtureofpolymersinavolatile,nonre-actableliquid.Thesolventlesstypeisaliquidresinsystemfreeofvolatile,nonreactablesolvents.3.1.3varnished,adj—referringtoanyitemontowhichvarnishhasbeenappliedandcured.4.SignificanceandUse4.1Thistestmethodisusefulindeterminingtheperfor-manceofvarnishesoverenamelledmagnetwirewhensub-jectedtothespecifiedsodiumchloridesolution.Itisusefu...
