EN 50119-2001 铁路设施.固定装置.电气牵引架空接触线

作者:标准资料网 时间:2024-05-04 07:31:03   浏览:8482   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Railwayapplications-Fixedinstallations-Electrictractionoverheadcontactlines;GermanversionEN50119:2001
【原文标准名称】:铁路设施.固定装置.电气牵引架空接触线
【标准号】:EN50119-2001
【标准状态】:现行
【国别】:
【发布日期】:2002-01
【实施或试行日期】:2002-01-01
【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】:电气元件;电力牵引;组装件;牵引电网;铁路电力牵引装置;铁路运输;安装;电车道系统;元部件;铁路设施;尺寸选定;铁路架空输电网;架空接触线路;定义;铁路;固定的;设计;电气设备;计划;执行计划;电气工程
【英文主题词】:Assemblies;Components;Definition;Definitions;Design;Dimensioning;Electrictraction;Electricalcomponents;Electricalengineering;Electricalequipment;Erection;Executionplanning;Overheadcontactlines;Planning;Railtransport;Railwayapplications;Railwaycatenaries;Railwayelectrictractionequipment;Railways;Stationary;Tractionnetwork;Tramwaysystems
【摘要】:
【中国标准分类号】:S82
【国际标准分类号】:29_280
【页数】:49P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:Advancedtechnicalceramics-Monolithicceramics-Mechanicalpropertiesatroomtemperatures-Vickers,KnoopandRockwellsuperficialhardnesstests
【原文标准名称】:高技术陶瓷.整体陶瓷.室温下的机械性能.维氏硬度计、努氏硬度计和洛氏硬度计和表面硬度试验
【标准号】:BSDDENV843-4-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-02-15
【实施或试行日期】:1995-02-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:环境温度;试验报告;努氏硬度;努氏(硬度);洛氏(硬度);维氏硬度测量;试验;高级工业陶瓷;维氏硬度;维氏硬度计;硬度测量;洛氏硬度测量;环境试验;定义;整体材料;机械性能
【英文主题词】:Advancedtechnicalceramics;Ambienttemperatures;Definition;Definitions;Environmentaltesting;Hardnessmeasurement;Knoop;Knoophardness;Mechanicalproperties;Monolithicmaterials;Rockwell;Rockwellhardnessmeasurement;Testreports;Testing;Vickers;Vickershardness;Vickershardnessmeasurement
【摘要】:
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforPillingResistanceandOtherRelatedSurfaceChangesofTextileFabrics:RandomTumblePillingTester
【原文标准名称】:纺织纤维的抗起球性和其他相关表面变化的标准试验方法:翻滚式起球试验仪
【标准号】:ASTMD3512/D3512M-2010e1
【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】:D13.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:fabric;fuzz;pills;Pillingresistance;Randomtumblepillingtester;Surfaceanalysis--textilefabrics/fibers;Textilefabrics(general)
【摘要】:AcceptanceTesting8212;Thismethodoftestingfabricsforresistancetopillingisnotrecommendedforacceptancetesting.Ifitisusedforacceptancetesting,itshouldbeusedwithcautionbecausethebetween-laboratoryprecisionispoor.Insomecasesthepurchaserandthesuppliermayhavetotestacommercialshipmentofoneormorespecificmaterialsbythebestavailabletestmethod,eventhoughthetestmethodisnotrecommendedforacceptancetesting.Iftherearedifferencesorpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplesshouldbeusedthatareashomogeneousaspossible,drawnfromthematerialfromwhichthedisparatetestresultswereobtained,andrandomlyassignedinequalnumberstoeachlaboratoryfortesting.Othermaterialswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Thepillingoftextilefabricsisaverycomplexpropertybecauseitisaffectedbymanyfactorswhichmayincludetypeoffiberorblends,fiberdimensions,yarnandfabricconstruction,fabricfinishingtreatmentsandrefurbishingmethod.Testingbeforerefurbishingmaybeadviseable.Thepillingresistanceofaspecificfabricinactualwearvariesmorewithgeneralconditionsofuseandindividualwearersthaninreplicatefabricspecimenssubjectedtocontrolledlaboratorytests.Thisexperienceshouldbeborneinmindwhenadoptinglevelsofacceptabilityforanyseriesofstandards.Pillsvaryappreciablyinsizeandappearanceanddependonthepresenceoflintanddegreeofcolorcontrast.Thesefactorsarenotevaluatedwhenpillingisratedsolelyonthenumberofpills.Thedevelopmentofpillsmaybeaccompaniedbyothersurfacephenomenasuchaslossofcover,colorchange,orthedevelopmentoffuzz.Sincetheoverallacceptabilityofaspecificfabricisdependentonboththecharacteristicsofthepillsandtheotherfactorsaffectingsurfaceappearance,itissuggestedthatfabricstestedinthelaboratorybeevaluatedsubjectivelywithregardtotheiracceptabilityandnotratedsolelyonthenumberofpillsdeveloped.Aseriesofstandards,basedongraduateddegreesofsurfacechangeofthefabrictypebeingtested,maybesetuptoprovideabasisforsubjectiveratings.Thevisualstandardsaremostadvantageouswhenthelaboratorytestspecimenscorrelatecloselyinappearancewithwornfabricsandshowasimilarratioofpillstofuzz.Countingthepillsandweighingtheirnumberwithrespecttotheirsizeandcontrast,asacombinedmeasureofpillingresistance,isnotrecommendedbecauseoftheexcessivetimerequiredforcounting,sizing,andcalculating.Thedegreeoffabricpillingisevaluatedbycomparingthetestedspecimenswithvisualstandards,whichmaybeactualfabricsorphotographsoffabrics,showingarangeofpillingresistance.Theobservedresistancetopillingisreportedonanarbitraryscalerangingfrom5(nopilling)to1(veryseverepilling).Thistestmethodisapplicabletoawidevarietyofwovenandknittedfabricsthatvaryinpillingpropensityasaresultofvariationsinfiber,yarnandfabricstructure,andfinish.1.1Thistestmethodcoverstheresistancetotheformationofpillsandotherrelatedsurfacechangesontextilefabricsusingtherandomtumblepillingtester.Theprocedureisgenerallyapplicable......
【中国标准分类号】:W55
【国际标准分类号】:59_080_30
【页数】:6P.;A4
【正文语种】:英语