IEC 61000-4-14 Edition 1.1-2002 电磁兼容性.第4-14部分:试验和测量技术.电压波动抗扰试验

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【英文标准名称】:Electromagneticcompatibility(EMC)-Part4-14:Testingandmeasurementtechniques;Voltagefluctuationimmunitytest
【原文标准名称】:电磁兼容性.第4-14部分:试验和测量技术.电压波动抗扰试验
【标准号】:IEC61000-4-14Edition1.1-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC77A
【标准类型】:()
【标准水平】:()
【中文主题词】:电磁兼容性;干扰抑制;电磁兼容性;抗扰性;电压波动;电气工程;电气器具;测量技术;电磁试验;试验;定义;定义
【英文主题词】:
【摘要】:Appliestoelectricaland/orelectronicequipmentthathavearatedinputcurrentupto16Aperphase.Aimstoestablishareferenceforevaluatingtheimmunityofelectricand/orelectronicequipmentwhensubjectedtopositiveandnegativelowamplitud
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:15P;A4
【正文语种】:英语


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基本信息
标准名称:微动螺母
中标分类:
发布日期:1990-09-18
实施日期:1990-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
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【英文标准名称】:StandardTestMethodforAcceleratedTensileCreepandCreep-RuptureofGeosyntheticMaterialsBasedonTime-TemperatureSuperpositionUsingtheSteppedIsothermalMethod
【原文标准名称】:使用阶段等温法对基于时间-温度叠加的土工合成材料的加速拉伸蠕变和蠕变断裂的标准试验方法
【标准号】:ASTMD6992-2003
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:D35.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:creep;creep-rupture;geosynthetics;rampandholdtest;rapidloadingtensiletest;steppedisothermalmethod;time-temperaturesuperposition
【摘要】:UseoftheSteppedIsothermalMethoddecreasesthetimerequiredforcreeptooccurandtheobtainingoftheassociateddata.Thestatementssetforthin1.7areveryimportantinthecontextofsignificanceanduse,aswellasscopeofthestandard.Creeptestdataareusedtocalculatethecreepmodulusofmaterialsasafunctionoftime.Thesedataarethenusedtopredictthelong-termcreepdeformationexpectedofgeosyntheticsusedinreinforcementapplications.Note18212;Currently,SIMtestinghasfocusedmainlyonwovenandknittedgeogridsandwovengeotextilesmadefrompolyester,aramid,polyaramid,poly-vinylalcohol(PVA)andpolypropyleneyarnsandnarrowstrips.Additionalcorrelationstudiesonothermaterialsareneeded.Creeprupturetestdataareusedtodeveloparegressionlinerelatingcreepstresstorupturetime.Theseresultspredictthelongtermrupturestrengthexpectedforgeosyntheticsinreinforcementapplications.Tensiletestingisusedtoestablishtheultimatetensilestrength(TULT)ofamaterialandtodetermineelasticstress,strainandvariationsthereofforSIMtests.RampandHold(R+H)testingisdonetoestablishtherangeofcreepstrainsexperiencedinthebriefperiodofveryrapidresponsefollowingthepeakoftheloadramp.1.1Thistestmethodcoversacceleratedtestingfortensilecreep,andtensilecreep-rupturepropertiesusingtheSteppedIsothermalMethod(SIM).1.2Thetestmethodisfocusedongeosyntheticreinforcementmaterialssuchasyarns,ribsofgeogrids,ornarrowgeotextilespecimens.1.3TheSIMtestsarelaterallyunconfinedtestsbasedontime-temperaturesuperpositionprocedures.1.4TensiletestsaretobecompletedbeforeSIMtestsandtheresultsareusedtodeterminethestresslevelsforsubsequentSIMtestsdefinedintermsofthepercentageofUltimateTensileStrength(TULT).Additionally,thetensiletestcanbedesignedtoprovideestimatesoftheinitialelasticstraindistributionsappropriatefortheSIMresults.1.5RampandHold(R+H)testsmaybecompletedinconjunctionwithSIMtests.TheyaredesignedtoprovideadditionalestimatesoftheinitialelasticandinitialrapidcreepstrainlevelsappropriatefortheSIMresults.1.6ValuesstatedinSIunitsaretoberegardedasstandard.Thecommonunitsgiveninparenthesesareforinformationonly.1.7Thismethodcanbeusedtoestablishthesustainedloadcreepandcreep-rupturecharacteristicsofageosynthetic.ResultsofthismethodaretobeusedtoaugmentresultsofTestMethodD5262andmaynotbeusedasthesolebasisfordeterminationoflongtermcreepandcreep-rupturebehaviorofgeosyntheticmaterial.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:9P.;A4
【正文语种】: