【英文标准名称】:Surgearresters-Part8:Metal-oxidesurgearresterswithexternalseriesgap(EGLA)foroverheadtransmissionanddistributionlinesofa.c.systemsabove1kV
【原文标准名称】:电涌放电器.第8部分:高于1kV的直流系统的高架输电和配电用带有外部串联火花间隙(EGLA)的金属氧化物电涌放电器
【标准号】:IEC60099-8-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-01
【实施或试行日期】:2011-01
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC37
【标准类型】:()
【标准水平】:()
【中文主题词】:验收检验;交流电流;交流电网络;交流电压;分类;定义(术语);电气工程;电气保护设备;电阻;高电压;装置;额定电压装置;作标记;测量;测量技术;金属氧化放电器;非线性的;使用条件;过载(电);过载试验;过电压;过电压保护装置;并联;合格试验;额定电压;额定值;耐力;接地电阻;电阻器;常规检验;串联;火花间隙;电涌放电器;试验
【英文主题词】:Acceptanceinspection;Alternatingcurrent;Alternatingcurrentnetworks;Alternatingvoltages;Classification;Definitions;Electricalengineering;Electricalprotectionequipment;Electricalresistance;Highvoltage;Installations;Installationsforratedvoltages;Marking;Measurement;Measuringtechniques;Metaloxidearresters;Non-linear;Operatingconditions;Overload(electric);Overloadtests;Overvoltage;Overvoltageprotection;Parallelconnection;Qualificationtests;Ratedvoltages;Ratings;Resistance;Resistancetoearth;Resistors;Routinechecktests;Seriesconnection;Sparkgaps;Surgearresters;Testing
【摘要】:ThispartofIEC60099coversmetal-oxidesurgearresterswithexternalseriesgap(externallygappedlinearresters(EGLA)thatareappliedonoverheadtransmissionanddistributionlines,onlytoprotectinsulatorassembliesfromlightning-causedflashovers.Thisstandarddefinessurgearresterstoprotecttheinsulatorassemblyfromlightning-causedovervoltagesonly.Therefore,andsincethemetal-oxideresistorsarenotpermanentlyconnectedtotheline,thefollowingitemsarenotconsideredforthisstandard:?switchingimpulsesparkovervoltage;?residualvoltageatsteepcurrentandswitchingcurrentimpulse;?thermalstability;?long-durationcurrentimpulsewithstandduty;?power-frequencyvoltageversustimecharacteristicsofanarrester;?disconnectortest;?agingdutiesbypower-frequencyvoltage.Consideringtheparticulardesignconceptandthespecialapplicationonoverheadtransmissionanddistributionlines,someuniquerequirementsandtestsareintroduced,suchastheverificationtestforcoordinationbetweeninsulatorwithstandandEGLAprotectivelevel,thefollowcurrentinterruptingtest,mechanicalloadtests,etc.DesignswiththeEGLA'sexternalseriesgapinstalledinparalleltoaninsulatorarenotcoveredbythisstandard.
【中国标准分类号】:K45
【国际标准分类号】:29_240_10
【页数】:128P.;A4
【正文语种】:英语