【英文标准名称】:Electriccables-Calculationofthecurrentrating-Part1-1:Currentratingequations(100%loadfactor)andcalculationoflosses-General
【原文标准名称】:电缆.计算额定电流.第1-1部分:额定电流方程(100%负载因数)和损耗计算.总则
【标准号】:IEC60287-1-1-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆;电流强度;尺寸选定;电气工程;高压引线;数学计算;电力电缆;额定电压;额定方程
【英文主题词】:Cables;Currentrates;Dimensioning;Electriccables;Electricalengineering;Hightensionleads;Mathematicalcalculations;Powercables;Ratedvoltages;Ratingequation
【摘要】:ThispartofIEC60287isapplicabletotheconditionsofsteady-stateoperationofcablesatallalternatingvoltages,anddirectvoltagesupto5kV,burieddirectlyintheground,inducts,troughsorinsteelpipes,bothwithandwithoutpartialdrying-outofthesoil,aswellascablesinair.Theterm"steadystate"isintendedtomeanacontinuousconstantcurrent(100%loadfactor)justsufficienttoproduceasymptoticallythemaximumconductortemperature,thesurroundingambientconditionsbeingassumedconstant.Thispartprovidesformulaeforcurrentratingsandlosses.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】:65P.;A4
【正文语种】:英语


【英文标准名称】:Wheeledtractorsforagricultureandforestry-Roll-overprotectivestructures(ROPS)-Statictestmethodandacceptanceconditions
【原文标准名称】:农林用轮式拖拉机.上滚动防护结构(ROPS).静态试验方法和验收条件
【标准号】:BSISO5700-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-01-31
【实施或试行日期】:2007-01-31
【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】:验收;验收(鉴定);验收规范;农用设备;农业机械;农用拖拉机;驾驶室;破碎试验;定义;林业设备;机架;负荷;操作台;保护装置;倾翻保护装置;滚动稳定性;安全装置;静态的;试验设备;试验;牵引车
【英文主题词】:Acceptance;Acceptance(approval);Acceptancespecification;Agriculturalequipment;Agriculturalmachines;Agriculturaltractors;Cabs;Crushingtests;Definitions;Forestryequipment;Frames;Loading;Operatingstations;Protectivedevices;Roll-overprotectivestructures;Rolloverstability;Safetydevices;Static;Testequipment;Testing;Tests;Tractors
【摘要】:ThisInternationalStandardspecifiesastatictestmethodandtheacceptanceconditionsforroll-overprotectivestructures(caborframe)ofagricultureandforestry.Itisapplicabletotractorshavingatleasttwoaxlesforwheelsmountedwithpneumatictyres,orhavingtracksinsteadofwheels,withanunballastedtractormassofnotlessthan800kgandaminimumtrackwidthoftherearwheelsgreaterthan1150mm.
【中国标准分类号】:T61
【国际标准分类号】:65_060_10
【页数】:36P.;A4
【正文语种】:英语