DIN VDE 0302-2-1986 电气设备绝缘系统.功能评定.老化机理和诊断程序

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【英文标准名称】:Insualtionsystemsofelectricalequipment;functionalevaluation,ageingmechanismsanddiagnosticprocedures;identicalwithIEC60610(Report),edition1978
【原文标准名称】:电气设备绝缘系统.功能评定.老化机理和诊断程序
【标准号】:DINVDE0302-2-1986
【标准状态】:作废
【国别】:德国
【发布日期】:1986-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;老化;绝缘材料;电绝缘;电驱动装置;老化试验;电绝缘材料;试验
【英文主题词】:Ageing(materials);Ageingtests;Electricalengineering;Electricalinsulatingmaterials;Electricalinsulation;Electrically-operateddevices;Evaluations;Insulatingmaterials;Insulationsystems;Insulatio
【摘要】:
【中国标准分类号】:K60
【国际标准分类号】:29_080_30
【页数】:8P;A4
【正文语种】:德语


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基本信息
标准名称:导热油加热沥青设备技术要求
英文名称:Requirements for asphalt heat-transfer oil melter
中标分类: 化工 >> 化工机械与设备 >> 化工设备
发布日期:1995-09-07
实施日期:1996-03-01
首发日期:
作废日期:2006-06-23
出版日期:
页数:6页
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所属分类: 化工 化工机械与设备 化工设备
【英文标准名称】:Rubber,vulcanized-Determinationoftensionfatigue
【原文标准名称】:硫化橡胶.抗拉疲劳的测定
【标准号】:BSISO6943-2007
【标准状态】:作废
【国别】:英国
【发布日期】:2007-08-31
【实施或试行日期】:2007-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;测定;延伸;疲劳;疲劳测试;疲劳试验;数学计算;耐力;橡胶;抗拉测试;试件;试样;测试;硫化橡胶
【英文主题词】:Definitions;Determination;Elongation;Fatigue;Fatiguetesting;Fatiguetests;Mathematicalcalculations;Resistance;Rubber;Tensiletesting;Testpieces;Testspecimens;Testing;Vulcanizedrubber
【摘要】:ThisInternationalStandarddescribesamethodforthedeterminationoftheresistanceofvulcanizedrubberstofatigueunderrepeatedtensiledeformations,thetestpiecesizeandfrequencyofcyclingbeingsuchthatthereislittleornotemperaturerise.Undertheseconditions,failureresultsfromthegrowthofacrackthatultimatelyseversthetestpiece.Themethodisrestrictedtorepeateddeformationsinwhichthetestpieceisrelaxedtozerostrainforpartofeachcycle.Analogousfatigueprocessescanoccurunderrepeateddeformationswhichdonotpassthroughzerostrainandalso,incertainrubbers,understaticdeformation,butthisInternationalStandarddoesnotapplytotheseconditions.Themethodisbelievedtobesuitableforrubbersthathavereasonablystablestress-strainproperties,atleastafteraperiodofcycling,andthatdonotshowunduestresssofteningorset,orhighlyviscousbehaviour.Materialsthatdonotmeetthesecriteriamaypresentconsiderabledifficultiesfromthepointsofviewofbothexperimentandinterpretation.Forexample,forarubberthatdevelopsalargeamountofsetduringthefatiguetest,theteststrainwillbeill-definedandthefatiguelifeislikelytodiffermarkedlyunderconstantmaximumloadandconstantmaximumextensionconditions;howtheresultsforsucharubbershouldbeinterpreted,orcomparedwiththoseforotherrubbers,hasnotbeenestablishedbybasicwork.Asageneralguide,arubberforwhichthesetdeterminedinaccordancewith8.5and9.2exceedsislikelytofallintothiscategory.Forthisreason,themethodisnotconsideredsuitableformostthermoplasticelastomers.Similarconsiderationsapplywithregardtootherchangesinelasticitybehaviourduringtesting.AdistinctionshouldbemadebetweenthisfatiguetestandtheflexometertestsdescribedinthevariouspartsofISO4666-1,wherefatiguebreakdownoccursunderthesimultaneousactionofstressandtemperature.AdvantagesovertheDeMattiaflexcrackingandcutgrowthtest(seeISO132)includethefollowing.Thetestyieldsquantitativeresultswhichdonotdependonoperatorinterpretationandwhichcanberecordedautomatically.Theinitialdeformationisclearlydefinedandcanreadilybevariedtosuitdifferentapplications.Greatcautionisnecessaryinattemptingtorelatestandardtestresultstoserviceperformancesincethecomparativefatigueresistanceofdifferentvulcanizatescanvaryaccordingtothetestconditionsusedandtothebasisbywhichtheresultsarecompared.GuidanceontheselectionoftestconditionsandontheinterpretationofresultsisgiveninAnnexA.
【中国标准分类号】:G35
【国际标准分类号】:83_060
【页数】:24P.;A4
【正文语种】:英语