ASTM D2440-1999(2004) 矿物绝缘油氧化稳定性的试验方法

作者:标准资料网 时间:2024-05-24 16:48:39  浏览:8231   来源:标准资料网

【英文标准名称】:StandardTestMethodforOxidationStabilityofMineralInsulatingOil
【原文标准名称】:矿物绝缘油氧化稳定性的试验方法
【标准号】:ASTMD2440-1999(2004)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D27.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:绝缘液体;氧化;石油产品;绝缘油;试验;绝缘;电绝缘;电气工程;稳定性
【英文主题词】:acid;aging;insulatingmineraloil;oxidation;sludge;stability;transformer
【摘要】:Theoxidationstabilitytestofmineraltransformeroilsisamethodforassessingtheamountofsludgeandacidproductsformedinatransformeroilwhentheoilistestedunderprescribedconditions.Goodoxidationstabilityisnecessaryinordertomaximizetheservicelifeoftheoilbyminimizingtheformationofsludgeandacid.OilsthatmeettherequirementsspecifiedforthistestinSpecificationD3487tendtominimizeelectricalconduction,ensureacceptableheattransfer,andpreservesystemlife.Thereisnoprovencorrelationbetweenperformanceinthistestandperformanceinservice,sincethetestdoesnotmodelthewholeinsulationsystem(oil,paper,enamel,wire).However,thetestcanbeusedasacontroltestforevaluatingoxidationinhibitorsandtochecktheconsistencyofoxidationstabilityofproductionoils.1.1Thistestmethoddeterminestheresistanceofmineraltransformeroilstooxidationunderprescribedacceleratedagingconditions.Oxidationstabilityismeasuredbythepropensityofoilstoformsludgeandacidproductsduringoxidation.Thistestmethodisapplicabletonewoils,bothuninhibitedandinhibited,butisnotwelldefinedforusedorreclaimedoils.Note1AshorterdurationoxidationtestforevaluationofinhibitedoilsisavailableinTestMethodD2112.Note2Forthoseinterestedinthemeasurementofvolatileacidity,referenceismadetotheworkofIECSubcommittee10A.1.2Thevaluesstatedinmetricunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E38
【国际标准分类号】:29_040_10
【页数】:6P.;A4
【正文语种】: