ASTM D1816-2004 用VDE电极测量源自石油的绝缘油介电击穿电压的标准试验方法

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【英文标准名称】:StandardTestMethodforDielectricBreakdownVoltageofInsulatingOilsofPetroleumOriginUsingVDEElectrodes
【原文标准名称】:用VDE电极测量源自石油的绝缘油介电击穿电压的标准试验方法
【标准号】:ASTMD1816-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D27.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:绝缘;绝缘液体;试验;电绝缘;电介质击穿;电气工程
【英文主题词】:breakdownvoltage;dielectricstrength;insulatingoils;testcell;VDEelectrodes
【摘要】:Thedielectricbreakdownvoltageofaninsulatingliquidisofimportanceasameasureoftheliquidrsquo;abilitytowithstandelectricstresswithoutfailure.Thedielectricbreakdownvoltageservestoindicatethepresenceofcontaminatingagentssuchaswater,dirt,cellulosicfibers,orconductingparticlesintheliquid,oneormoreofwhichmaybepresentinsignificantconcentrationswhenlowbreakdownvoltagesareobtained.However,ahighdielectricbreakdownvoltagedoesnotnecessarilyindicatetheabsenceofallcontaminants;itmaymerelyindicatethattheconcentrationsofcontaminantsthatarepresentintheliquidbetweentheelectrodesarenotlargeenoughtodeleteriouslyaffecttheaveragebreakdownvoltageoftheliquidwhentestedbythistestmethod(seeAppendixX1.)Thistestmethodisusedinlaboratoryorfieldtests.Forfieldbreakdownresultstobecomparabletolaboratoryresults,allcriteriaincludingroomtemperature(20to30x00B0;C)mustbemet.1.1Thistestmethodcoversthedeterminationofthedielectricbreakdownvoltageofinsulatingoilsofpetroleumorigin.Thistestmethodisapplicabletoliquidpetroleumoilscommonlyusedincables,transformers,oilcircuitbreakers,andsimilarapparatusasaninsulatingandcoolingmedium.Thesuitabilityofthistestmethodfortestingoilshavingviscosityofmorethan19cSt,(100SUS)at40176;C(104176;F)hasnotbeendetermined.RefertoTerminologyD2864fordefinitionsusedinthistestmethod.1.2Thistestmethodissensitivetothedeleteriouseffectsofmoistureinsolutionespeciallywhencellulosicfibersarepresentintheoil.Ithasbeenfoundtobeespeciallyusefulindiagnosticandlaboratoryinvestigationsofthedielectricbreakdownstrengthofoilininsulatingsystems.1.3ThistestmethodisusedtojudgeiftheVDEelectrodebreakdownvoltagerequirementsaremetforinsulatingliquids.ThistestmethodshouldbeusedasrecommendedbyprofessionalorganizationstandardssuchasIEEEC57.106.1.4ThistestmethodmaybeusedtoobtainthedielectricbreakdownofsiliconefluidasspecifiedinTestMethodD2225,providedthatthedischargeenergyintothesampleislessthan20mJ(millijoule)perbreakdownforfiveconsecutivebreakdowns.1.5Boththemetricandthealternativeinch-poundunitsareacceptable.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E38
【国际标准分类号】:29_040_10
【页数】:5P.;A4
【正文语种】: