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【英文标准名称】:StandardTestMethodforDust-and-FogTrackingandErosionResistanceofElectricalInsulatingMaterials
【原文标准名称】:电绝缘材料的尘雾起痕和耐腐蚀性的标准试验方法
【标准号】:ASTMD2132-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:D09.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电绝缘;耐腐蚀绝缘;耐力;跟踪;湿度踪迹
【英文主题词】:electricalinsulation;erosionresistantinsulation;resistance;tracking;wettracking
【摘要】:Method8212;Electricalinsulationinservicecanfailasaresultoftracking,erosion,oracombinationofboth,ifexposedtohighrelativehumidityandcontaminationenvironments.Thisisparticularlytrueoforganicinsulationsinoutdoorapplicationswherethesurfaceoftheinsulationbecomescontaminatedbydepositsofmoistureanddirt,forexample,coaldustorsaltspray.Thistestmethodisanacceleratedtestthatsimulatesextremelysevereoutdoorcontamination.ItisbelievedthatthemostsevereconditionslikelytobeencounteredinoutdoorserviceintheUnitedStateswillberelativelymildcomparedtotheconditionsspecifiedinthistestmethod.TestResults8212;Materialscanbeclassifiedbythistestmethodastracking-resistant,tracking-affected,ortracking-susceptible.Theexacttestvaluesforthesecategoriesastheyapplytospecificuseswillbespecifiedintheappropriatematerialspecifications,butguidelinefiguresaresuggestedinNote3.Tracking-resistantmaterials,unlesserosionfailureoccursfirst,canlastmanyhundredsofhours(Note4).Erosion,thoughitcanprogresslaterally,generallyresultsinafailureperpendiculartothespecimensurface.Therefore,onlyspecimensofthesamenominalthicknesscanbecomparedforresistancetotracking-inducederosion.Theextentoferosioncanbeestimatedfrommeasurementsofthedepthofpenetrationoftheerosion.Materialsthatarenottracking-susceptiblecanbeplacedinthreebroadcategorieserosion-resistant,erosion-affected,anderosion-susceptible.Whenthestandardthicknessspecimenistested,thefollowingtimestofailuretypifythecategories(Note5):1.1Thistestmethodisintendedtodifferentiatesolidelectricalinsulatingmaterialswithrespecttotheirresistancetotheactionofelectricarcsproducedbyconductionthroughsurfacefilmsofaspecifiedcontaminantcontainingmoisture.TestMethodsandD2303mayalsobeusedtoevaluatematerials.1.2Thevaluesstatedininch-poundunitsarethestandard,exceptincaseswhereSIunitsaremoreappropriate.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin12.4.Note18212;ThereisnoequivalentISOstandard.
【中国标准分类号】:
【国际标准分类号】:29_035_01
【页数】:6P.;A4
【正文语种】: