【英文标准名称】:StandardTestMethodsforRigidTubesUsedforElectricalInsulation
【原文标准名称】:电气绝缘使用刚性管的标准试验方法
【标准号】:ASTMD348-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D09.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:覆层;电气工程;电绝缘;绝缘管;绝缘;管道;刚性管;试验;管
【英文主题词】:compressivestrength;density;dielectricstrength;dissipationfactor;permittivity;rigidtubes;tensilestrength;thermosettinglaminate;vulcanizedfibre;waterabsorption
【摘要】:Tensiontests,properlyinterpreted,provideinformationwithregardtothetensilepropertiesofrigidtubing,whenemployedunderconditionsapproximatingthoseunderwhichthetestsaremade.Thetensilestrengthvaluesmayvarywiththesizeofthetubeandwiththetemperatureandatmosphericconditions.Tensiontestsmayprovidedataforresearchanddevelopmentandforengineeringdesign,andareusefulforqualitycontrolpurposes.1.1Thesetestmethodscoverthetestingofrigidtubesusedinelectricalinsulation.Thesetubesincludemanytypesmadefromfibroussheetsofbasicmaterials,suchascellulose,glass,ornylon,intheformofpaper,wovenfabrics,ormats,bondedtogetherbynaturalorsyntheticresinsorbyadhesives.Suchtubesincludevulcanizedfiberandthermosettinglaminates,aswellastubesmadefromcast,molded,orextrudednaturalorsyntheticresins,withorwithoutfillersorreinforcingmaterials.1.2Tubestestedbythesetestmethodsaremostcommonlycircularincrosssection;however,noncircularshapesarealsoincommercialuse.Totheextentthattheindividualmethodsarecompatiblewithaparticularnoncircularshape,thesetestmethodsareapplicabletotheseothershapes.Fortestsonnoncirculartubes,appropriatecommentsshouldbeincludedinthetestreport,includingdetailsoforientationoftestspecimenswithrespecttothecrosssectionofthetube.1.3Theproceduresappearinthefollowingsections:1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.SIunitsinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,see27.1.1.
【中国标准分类号】:K15
【国际标准分类号】:29_120_10
【页数】:6P.;A4
【正文语种】: