【英文标准名称】:Electromagneticcompatibility(EMC)-Part4-3:Testingandmeasurementtechniques-Radiated,radio-frequency,electromagneticfieldimmunitytest(IEC61000-4-3:2006+A1:2007);GermanversionEN61000-4-3:2006+A1:2008
【原文标准名称】:电磁兼容性(EMC).第4-3部分:试验和测量技术.辐射、射频和电磁场干扰试验
【标准号】:EN61000-4-3-2008
【标准状态】:现行
【国别】:
【发布日期】:2008-06
【实施或试行日期】:2008-06-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:基础标准;校正;检验设备;定义;锐度;数字的;电器;电气设备;电气工程;电驱动装置;电磁兼容性;电磁场;电磁试验;电子仪器;电子装置;EMC;设备;高频;抗扰性;干扰抑制;干扰辐射;测量技术;调制;调制信号;工作性能;无线电设备;无线电话;电话设备;电话机;试验组织;测试;试验装置
【英文主题词】:Basicstandard;Calibration;Checkingequipment;Definition;Definitions;Degreeofsharpness;Digital;Electricappliances;Electricalappliances;Electricalengineering;Electrically-operateddevices;Electromagneticcompatibility;Electromagneticfields;Electromagnetictests;Electronicinstruments;Electronically-operateddevices;EMC;Equipment;Highfrequencies;Immunity;Interferencerejections;Interferingemissions;Measuringtechniques;Modulation;Modulationsignals;Performanceinservice;Radioequipment;Radiotelephone;Radiotelephones;Telephoneequipment;Telephones;Testset-ups;Testing;Testingdevices
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:77P.;A4
【正文语种】:英语
基本信息
标准名称: | 水电工程移民专业项目规划设计规范 |
英文名称: | Design specifications for professional works for resident relocation planning of hydroelectric project |
中标分类: |
工程建设 >>
水利、水电工程 >>
水利、水电工程综合 |
ICS分类: |
能源和热传导工程 >>
水力工程
|
发布部门: | 中华人民共和国国家发展和改革委员会 |
发布日期: | 2007-07-20 |
实施日期: | 2007-12-01 |
首发日期: | |
作废日期: | |
归口单位: | 电力行业水电规划设计标准化技术委员会 |
起草单位: | 水电水力规划设计总院 |
出版社: | 中国电力出版社 |
出版日期: | 2007-12-01 |
页数: | 55页 |
适用范围
本标准规定了水电工程农村移民安置规划设计的原则、项目、程序、深度和方法。
本标准适用于大中型水电站(含抽水蓄能电站)预可行性研究报告阶段、可行性研究报告阶段、移民安置实施阶段的建设征地移民安置的移民专业项目规划设计。
前言
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目录
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引用标准
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所属分类: 工程建设 水利 水电工程 水利 水电工程综合 能源和热传导工程 水力工程
【英文标准名称】:StandardTestMethodforCreep-FatigueCrackGrowthTesting
【原文标准名称】:蠕变—疲劳龟裂增大试验的标准试验方法
【标准号】:ASTME2760-2010
【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】:E08.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compactspecimens;cracks;crackgrowth;creep;fatigue;metals
【摘要】:Creep-fatiguecrackgrowthtestingistypicallyperformedatelevatedtemperaturesoverarangeoffrequenciesandhold-timesandinvolvesthesequentialorsimultaneousapplicationoftheloadingconditionsnecessarytogeneratecracktipcyclicdeformation/damageenhancedbycreepdeformation/damageorviceversa.Unlesssuchtestsareperformedinvacuumoraninertenvironment,oxidationcanalsoberesponsibleforimportantinteractioneffectsrelatingtodamageaccumulation.Thepurposeofcreep-fatiguecrackgrowthtestscanbetodeterminematerialpropertydatafor(a)assessmentinputdataforthedamageconditionanalysisofengineeringstructuresoperatingatelevatedtemperatures,(b)materialcharacterization,or(c)developmentandverificationofrulesfordesignandlifeassessmentofhigh-temperaturecomponentssubjecttocyclicservicewithlowfrequenciesorwithperiodsofsteadyoperation,oracombinationthereof.Ineverycase,itisadvisabletohavecomplementarycontinuouscyclingfatiguedata(gatheredatthesameloading/unloadingrate),creepcrackgrowthdataforthesamematerialandtesttemperature(s)asperTestMethodE1457,andcreep-fatiguecrackformationdataasperTestMethodE2714.Aggressiveenvironmentsathightemperaturescansignificantlyaffectthecreep-fatiguecrackgrowthbehavior.Attentionmustbegiventotheproperselectionandcontroloftemperatureandenvironmentinresearchstudiesandingenerationofdesigndata.Resultsfromthistestmethodcanbeusedasfollows:Establishmaterialselectioncriteriaandinspectionrequirementsfordamagetolerantapplicationswherecyclicloadingatelevatedtemperatureispresent.Establish,inquantitativeterms,theindividualandcombinedeffectsofmetallurgical,fabrication,operatingtemperature,andloadingvariablesoncreep-fatiguecrackgrowthlife.Theresultsobtainedfromthistestmethodaredesignedforcrackdominantregimesofcreep-fatiguefailureandshouldnotbeappliedtocracksinstructureswithwide-spreadcreepdamage.Localizeddamageinasmallzonearoundthecracktipispermissible,butnotinazonethatiscomparableinsizetothecracksizeortheremainingligamentsize.1.1Thistestmethodcoversthedeterminationofcreep-fatiguecrackgrowthpropertiesofnominallyhomogeneousmaterialsbyuseofpre-crackedcompacttype,C(T),testspecimenssubjectedtouniaxialcyclicforces.Itconcernsfatiguecyclingwithsufficientlylongloading/unloadingratesorhold-times,orboth,tocausecreepdeformationatthecracktipandthecreepdeformationberesponsibleforenhancedcrackgrowthperloadingcycle.Itisintendedasaguideforcreep-fatiguetestingperformedinsupportofsuchactivitiesasmaterialsresearchanddevelopment,mechanicaldesign,processandqualitycontrol,productperformance,andfailureanalysis.Therefore,thismethodrequirestestingofatleasttwospecimensthatyieldoverlappingcrackgrowthratedata.Thecyclicconditionsresponsibleforcreep-fatiguedeformationandenhancedcrackgrowthvarywithmaterialandwithtemperatureforagivenmaterial.Theeffectsofenvironmentsuchastime-dependentoxidationinenhancingthecrackgrowthratesareassumedtobeincludedinthetestresults;itisthusessentialtoconducttestinginanenvironmentthatisrepresentativeoftheintendedapplication.1.2Twotypesofcrackgrowthmechanismsareobservedduringcreep/fatiguetests:(1)time-dependentintergranularcreepand(2)cycledependenttransgranularfatigu......
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:19P.;A4
【正文语种】:英语