SAE AMS3533 Ethylene Tetrafluoroethylene (Etfe) Extrusions (Cancelled Oct 1995)
作者:标准资料网 时间:2024-05-20 17:26:35 浏览:8748
来源:标准资料网
Product Code:SAE AMS3533
Title:Ethylene Tetrafluoroethylene (Etfe) Extrusions (Cancelled Oct 1995)
Issuing Committee:Ams P Polymeric Materials Committee
Scope:
【英文标准名称】:Electriccables-Calculationofthecurrentrating-Part1-1:Currentratingequations(100%loadfactor)andcalculationoflosses;General
【原文标准名称】:电缆.额定电流的计算.第1-1部分:额定电流方程(100%负载系数)和电损耗计算.总则
【标准号】:IEC60287-1-1Edition1.2-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC20A
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;数学计算;额定方程;尺寸选定;电流损失;额定电流;电缆;电缆;高压引线
【英文主题词】:Cables;Currentloss;Currentratings;Dimensioning;Electriccables;Electricalengineering;Hightensionleads;Mathematicalcalculations;Ratingequation
【摘要】:ThissectionofIEC60287isapplicabletotheconditionsofsteady-stateoperationofcablesatallalternatingvoltages,anddirectvoltagesupto5kV,burieddirectlyintheground,inducts,troughsorinsteelpipes,bothwithandwithoutpartialdrying-outofthesoil,aswellascablesinair.Theterm"steadystate"isintendedtomeanacontinuousconstantcurrent(100%loadfactor)justsufficienttoproduceasymptoticallythemaximumconductortemperature,thesurroundingambientconditionsbeingassumedconstant.Thissectionprovidesformulaeforcurrentratingsandlosses.Theformulaegivenareessentiallyliteralanddesignedlyleaveopentheselectionofcertainimportantparameters.Thesemaybedividedintothreegroups:-parametersrelatedtoconstructionofacable(forexample,thermalresistivityofinsulatingmaterial)forwhichrepresentativevalueshavebeenselectedbasedonpublishedwork;-parametersrelatedtothesurroundingconditions,whichmayvarywidely,theselectionofwhichdependsonthecountryinwhichthecablesareusedoraretobeused;-parameterswhichresultfromanagreementbetweenmanufactureranduserandwhichinvolveamarginforsecurityofservice(forexample,maximumconductortemperature).
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:67P;A4
【正文语种】:英语
【英文标准名称】:SystemfortheRomanizationofArabic
【原文标准名称】:阿拉伯语的罗马字母拼写法
【标准号】:ANSIZ39.12-1972
【标准状态】:作废
【国别】:美国
【发布日期】:1972
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:图书馆学;文献工作;图形显示字符;摹本
【英文主题词】:graphiccharacters;documentations;libraryscience;transcriptions
【摘要】:
【中国标准分类号】:A14
【国际标准分类号】:01_140_10
【页数】:10P;A4
【正文语种】:英语
