JIS X0652-1992 电子预压系统间通过磁带进行的线性数据交换的用户交换格式

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【英文标准名称】:TestprocedureforAChigh-voltagecircuitbreakersratedonasymmetricalcurrentbasis-Amendment2:TochangethedescriptionoftransientrecoveryvoltageforharmonizationwithIEC62271-100
【原文标准名称】:额定电流基准交流高压电路断路器用测试规程.修改件2:与IEC62771-100标准协调一致的瞬变恢复电压描述的改变
【标准号】:IEEEC37.09b-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电流;断路器;电气工程;高压设备;高压开关装置;高压开关设备;额定电压;安全性;开关;开关装置;开关设备;测试;瞬变电压
【英文主题词】:Alternatingcurrent;Circuit-breakers;Electricalengineering;High-tensionunits;High-voltageswitchgear;High-voltageswitchgears;Ratedvoltage;Safety;Switches;Switchgear;Switchgears;Testing;Transientvoltage
【摘要】:
【中国标准分类号】:K43
【国际标准分类号】:29_120_40
【页数】:18P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforShearModulusatRoomTemperature
【原文标准名称】:室温下剪切模量的标准试验方法
【标准号】:ASTME143-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:shearmodulus;stress-straindiagram;torque-twistdiagram;Angleoftwist;Copperalloypipe;Coppertube;Ferrousmetals/alloys;Nonferrousmetals/alloys;Shearmodulus;Steel;Steelpipe;Straintesting--metallicmaterials;Stress--metallicmaterials;
【摘要】:ShearmodulusisamaterialpropertyusefulincalculatingcomplianceofstructuralmaterialsintorsionprovidedtheyfollowHooke''slaw,thatis,theangleoftwistisproportionaltotheappliedtorque.Examplesoftheuseofshearmodulusareinthedesignofrotatingshaftsandhelicalcompressionsprings.Note38212;Formaterialsthatfollownonlinearelasticstress-strainbehavior,thevalueoftangentorchordshearmodulusisusefulforestimatingthechangeintorsionalstraintocorrespondingstressforaspecifiedstressorstress-range,respectively.Suchdeterminationsare,however,outsidethescopeofthisstandard.(SeeforexampleRef(1).)Theproceduralstepsandprecisionoftheapparatusandthetestspecimensshouldbeappropriatetotheshapeandthematerialtype,sincethemethodappliestoawidevarietyofmaterialsandsizes.Precisedeterminationofshearmodulusdependsonthenumerousvariablesthatmayaffectsuchdeterminations.Thesefactorsincludecharacteristicsofthespecimensuchasresidualstress,concentricity,wallthicknessinthecaseoftubes,deviationfromnominalvalue,previousstrainhistoryandspecimendimension.Testingconditionsthatinfluencetheresultsinclude:axialpositionofthespecimen,temperatureandtemperaturevariations,andmaintenanceoftheapparatus.Interpretationofdataalsoinfluencesresults.1.1Thistestmethodcoversthedeterminationofshearmodulusofstructuralmaterials.Thistestmethodislimitedtomaterialsinwhich,andtostressesatwhich,creepisnegligiblecomparedtothestrainproducedimmediatelyuponloading.Elasticpropertiessuchasshearmodulus,Young''smodulus,andPoisson''sratioarenotdeterminedroutinelyandaregenerallynotspecifiedinmaterialsspecifications.Precisionandbiasstatementsforthesetestmethodsarethereforenotavailable.1.2Units8212;Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:5P.;A4
【正文语种】:英语