DIN 316-1998 圆形翼的蝶形螺钉
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来源:标准资料网
【英文标准名称】:Wingscrews,roundedwings
【原文标准名称】:圆形翼的蝶形螺钉
【标准号】:DIN316-1998
【标准状态】:现行
【国别】:德国
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;螺纹;ISO螺纹;铜锌合金;蝶形螺钉;螺钉;材料;验收规范;米制的;交货条件;钢;名称与符号;奥氏体钢;圆形;ISO米制螺纹;可锻铸铁;尺寸;外螺纹紧固件
【英文主题词】:Acceptancespecification;Austeniticsteels;Circularshape;Copperzincalloys;Deliveryconditions;Designations;Dimensions;External-threadfasteners;Fasteners;ISOmetricthreads;ISOscrewthreads;Malleablecast-iron;Materials;Metric;Screws(bolts);Steels;Threads;Thumbscrews
【摘要】:Thedocumentcontainsdimensionalandtechnicalrequirementsofwingscrewswithroundedwingsandspecifiestheirdesignation.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:4P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforElectricalPerformanceofConcentratorTerrestrialPhotovoltaicModulesandSystemsUnderNaturalSunlight
【原文标准名称】:在自然光下集中陆地光电模块和系统的电气性能评级的标准试验方法
【标准号】:ASTME2527-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E44.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:concentrator;modules;performance;photovoltaic;rating;reporting;systems;testing;Electricalperformance;Photovoltaic(PV)powersystems;Solarenergy
【摘要】:Itistheintentofthistestmethodtoprovidearecognizedprocedurefortestingandreportingtheelectricalperformanceofaphotovoltaicconcentratormoduleorsystem.Ifaninverterisusedaspartofthesystem,thistestmethodcanprovideadcoracratingorboth.Thedcoracratingdependsonwhethertheinverterinputoroutputismonitored.Thetestresultsmaybeusedforcomparisonamongagroupofmodulesorsystemsfromasinglesource.Theyalsomaybeusedtocomparediversedesigns,suchasproductsfromdifferentmanufacturers.Repeatedmeasurementsofthesamemoduleorsystemmaybeusedforthestudyofchangesindeviceperformanceoveralongperiodoftimeorasaresultofstresstesting.Thetestmethodislimitedtomodulesandsystemswheretheconcentratedirradianceonthecomponentcellsisgreaterthan5000Wm-2atEo.Thislimitationisnecessarybecausethetotalirradianceismeasuredwitharadiometerwithafieldofviewlessthan6x00B0;andbecausethecorrelationbetweenthedirectirradianceandthepowerproduceddecreaseswithincreasingconcentratorfieldofview.Thistestmethodassumesthattheregressionequationaccuratelypredictstheconcentratorperformanceasafunctionoftotalirradiancewithafixedspectralirradiance,windspeed,andairtemperature.Thespectraldistributionwillbeseasonalandsitespecificbecauseofopticalairmass,watervapor,aerosols,andothermeteorologicalvariables.1.1Thistestmethodcoversthedeterminationoftheelectricalperformanceofphotovoltaicconcentratormodulesandsystemsundernaturalsunlightusinganormalincidencepyrheliometer.1.2Thetestmethodislimitedtomoduleassembliesandsystemswherethegeometricconcentrationratiospecifiedbythemanufacturerisgreaterthan5.1.3Thistestmethodappliestoconcentratorsthatusepassivecoolingwherethecelltemperatureisrelatedtotheairtemperature.1.4Measurementsunderavarietyofconditionsareallowed;resultsarereportedunderaselectsetofconcentratorreportingconditionstofacilitatecomparisonofresults.1.5Thistestmethodappliesonlytoconcentratorterrestrialmodulesandsystems.1.6Thistestmethodassumesthatthemoduleorsystemelectricalperformancecharacteristicsdonotchangeduringtheperiodoftest.1.7Theperformanceratingdeterminedbythistestmethodappliesonlyattheperiodofthetest,andimpliesnopastorfutureperformancelevel.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F12
【国际标准分类号】:27_160
【页数】:3P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 立轴式分度台φ250 |
| 中标分类： |
机械 >>
金属切削机床 >>
机床辅具与附件 |
| 发布日期： | 1977-01-01 |
| 实施日期： | 1977-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 8页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 金属切削机床 机床辅具与附件
