【英文标准名称】:High-currenttesttechniques-Definitionsandrequirementsfortestcurrentsandmeasuringsystems
【原文标准名称】:大电流试验技术.试验电流和测量系统用定义和需求
【标准号】:IEC62475-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC42
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电流;校准;定义;直流电流;电气工程;大电流;高电压;高压电器;高压试验技术;脉冲电压;脉冲电压试验;干扰抑制;低压电器;测量不确定度;测量系统;计量学;动力电流;冲击电流;试验技术;试验;试验电流
【英文主题词】:Alternatingcurrent;Calibration;Definitions;Directcurrent;Electricalengineering;Highcurrent;Highvoltage;High-voltageequipment;High-voltagetesttechnique;Impulsevoltages;Impulse-voltagetests;Interferencerejections;Low-voltageequipment;Measuringincertainity;Measuringsystems;Metrology;Powercurrent;Surgecurrent;Testtechniques;Testing;Testingcurrents
【摘要】:ThisInternationalStandardisapplicabletohigh-currenttestingandmeasurementsonbothhigh-voltageandlow-voltageequipment.Itdealswithsteady-stateandshort-timedirectcurrent(ase.g.encounteredinhigh-powerd.c.testing),steady-stateandshort-timealternatingcurrent(ase.g.encounteredinhigh-powera.c.testing),andimpulse-current.Ingeneral,currentsabove100AareconsideredinthisInternationalStandard,althoughcurrentslessthanthiscanoccurintests.NOTEThisstandardalsocoversfaultdetectionduring,forexample,lightningimpulsetesting.Thisstandard:?definesthetermsused;?definesparametersandtheirtolerances;?describesmethodstoestimateuncertaintiesofhigh-currentmeasurements;?statestherequirementswhichacompletemeasuringsystemshallmeet;?describesthemethodsforapprovingameasuringsystemandcheckingitscomponents;?describestheprocedurebywhichtheusershallshowthatameasuringsystemmeetstherequirementsofthisstandard,includinglimitssetforuncertaintyofmeasurement.
【中国标准分类号】:K04
【国际标准分类号】:19_080
【页数】:216P.;A4
【正文语种】:


【英文标准名称】:StandardSpecificationforCoalFlyAshandRaworCalcinedNaturalPozzolanforUseinConcrete
【原文标准名称】:混凝土中使用的煤飞灰和未处理的或煅烧的天然火山灰的标准规范
【标准号】:ASTMC618-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:飞灰;火山灰;混凝土外加剂;混凝土
【英文主题词】:concretes;flyash;concreteadmixtures;pozzolanas
【摘要】:
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:3P;A4
【正文语种】:英语