NF Z87-132-3-2003 环境工程(EE).电信设备输入处的电源接口.第3部分:由400V及以下的整流电源、交流电源或直流电源控制
时间:2024-04-29 22:01:45 来源: 标准资料网 作者：标准资料网 阅读：9350
【英文标准名称】:EnvironmentalEngineering(EE)-Powersupplyinterfaceattheinputtotelecommunicationsequipment-Part3:operatedbyrectifiedcurrentsource,alternatingcurrentsourceordirectcurrentsourceupto400V(v1.2.1).
【原文标准名称】:环境工程(EE).电信设备输入处的电源接口.第3部分:由400V及以下的整流电源、交流电源或直流电源控制
【标准号】:NFZ87-132-3-2003
【标准状态】:现行
【国别】:法国
【发布日期】:2003-12-01
【实施或试行日期】:2003-12-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Alternatingcurrent;Alternatingcurrentterminals;Communicationequipment;Communicationtechnology;Deviceconfiguration;Directcurrent;Electricpowersystems;Environmentalcondition;ETSI;Informationprocessing;Instrumenttechnology;Instruments;Interfaces;Interfaces(dataprocessing);Interfacesofelectricalconnections;Plantengineering;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Terminaldevices
【摘要】:
【中国标准分类号】:M30
【国际标准分类号】:33_020
【页数】:19P.;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforCommercialRadialTruck-BusTirestoEstablishEquivalentTestSeverityBetweena1.707-m(67.23-in.)DiameterRoadwheelandaFlatSurface
【原文标准名称】:用以在1.707m(67.23英寸)直径负重轮和平面之间建立等效试验严重程度的商用辐射卡车-客车轮胎的标准实施规程
【标准号】:ASTMF2779-2010
【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】:美国材料与试验协会(US-ASTM)
【起草单位】:F09.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:commercialtire;curvedtoflat;endurance;equivalency;flattocurved;highspeed;highwayequivalent;roadwheel;roadwheeltesting;temperature;testseverity;tire;tiretemperature;truck-bus;67.23-in.;1.707-m
【摘要】:Historically,tireshavebeentestedforendurancebyavarietyoftestmethods.Sometypicaltestingprotocolshavebeen:(1)provinggroundsorhighwaytestingoverarangeofspeeds,loads,andinflations,(2)testingonfleetsofvehiclesforextendedperiodsoftime,and(3)nbsp;nbsp;nbsp;indoor(laboratory)testingoftiresloadedonarotating1.707-mdiameterroadwheel;however,thecurvedsurfaceofa1.707-mdiameterroadwheelresultsinasignificantlydifferenttirebehaviorfromthatobservedonaflatorhighwaysurface.Thispracticeaddressestheneedforprovidingequivalenttestseverityoverarangeoftypicaltireoperatingconditionsbetweena1.707-mdiameterroadwheelsurface(PracticeF551)andaflatsurface.Therearedifferentdeformationsofthetirefootprintoncurvedversusflatsurfacesresultingindifferentfootprintmechanics,stress/straincycles,andsignificantlydifferentinternaloperatingtemperaturesforthetwotypesofcontactsurface.Sincetireinternaltemperaturesarekeyparametersinfluencingtireenduranceoroperatingcharacteristicsundertypicaluseconditions,itisimportanttobeabletocalculateinternaltemperaturedifferentialsbetweencurvedandflatsurfacesforarangeofloads,inflationpressuresandrotationalvelocities(speeds).Datafromlabandroadtiretemperaturemeasurementtrialswerecombined,statisticallyanalyzed,andtiretemperaturepredictionmodelsderived.Thefitofthemodelstothedataisshownasthecoefficientofdetermination,R2,forthetwocriticalcrownareatemperatures,i.e.treadcenterlineandbeltedge,aswellastheplyendingarea:R2=0.89,0.90,and0.89respectivelyThesepredictionmodelswereusedtodevelopthepredictionprofilersdescribedinSection7andAnnexA1.1.1Thispracticedescribestheproceduretoidentifyequivalenttestseverityconditionsbetweena1.707-mdiameterlaboratoryroadwheelsurfaceandaflatorhighwaysurfaceforcommercialradialtruck-bustires.1.1.1Tireoperationalseverity,asdefinedastherunningoroperationaltemperatureforcertainspecifiedinternaltirelocations,isnotthesameforthesetwotestconditions.Itistypicallyhigherforthelaboratoryroadwheelatequalload,speedandinflationpressureconditionsduetothecurvatureeffect.1.1.2ThepracticeappliestospecificoperatingconditionsofloadrangeFthroughLforsuchcommercialradialtruck-bustires.1.1.3ThespecificoperatingconditionsunderwhichtheproceduresofthepracticearevalidandusefularecompletelyoutlinedinSection6(Limitations)ofthisstandard.1.1.4Itisimportanttonotethatthisstandardiscomposedoftwodistinctformats:1.1.4.1TheusualtextformataspublishedinthisvolumeoftheBookofStandards(Vol09.02).1.1.4.2Aspecialinteractiveelectronicformatthatusesaspecialsoftwaretool,designatedaspredictionprofilersorprofilers.Thisspecialprofilermaybeusedtodeterminelaboratorytestconditionsthatprovideequivalenttireinternaltemperaturesforthetreadcenterline,beltedge,orplyendingregionforthetwooperationalconditions,thatis,thecurvedlaboratoryroadwheelandflathighwaytestsurfaces.1.2Thepredictionprofilersarebasedonempiricallydevelopedlinearregressionmodelsobtainedfromtheanalysisofalargedatabasethatwasobtainedfromacomprehensiveexperimentaltestprogramforroadwheelandflatsurfacetestingoftypicalcommercialtruckandbustires.SeeSection7andReferences(1,2)【英文标准名称】:StandardTestMethodforEstimatingElectromigrationMedianTime-to-FailureandSigmaofIntegratedCircuitMetallizations[Metric]
【原文标准名称】:集成电路金属喷镀总量和电迁移中值失效时间的评定标准试验方法(米制单位)
【标准号】:ASTMF1260M-1996(2003)
【标准状态】:作废
【国别】:
【发布日期】:1996
【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】:F01.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电压;试验;电流;微电器件;失效时间;空气应力温度;密度应力;电迁移;电迁移中值时间;试验结构;电子探测器;故障端点;器件;总量;应力;集成电路;喷镀金属;缺陷与故障;高温试验;硅半导体;加速老化
【英文主题词】:electromigration;electromigrationmetallization;integratedcircuit;microelectronics;opencircuit;resistanceincrease;time-to-failure
【摘要】:1.1Thistestmethodisdesignedtocharacterizethefailuredistributionofinterconnectmetallizationssuchasareusedinmicroelectroniccircuitsanddevicesthatfailduetoelectromigrationunderspecifiedd-ccurrentdensityandtemperaturestre
【中国标准分类号】:L55
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】: