标准资料网-标准资料免费资源平台

【英文标准名称】:Calculationofthecyclicandemergencycurrentratingofcables-Cyclicratingfactorforcablesofallvoltages,withpartialdryingofthesoil
【原文标准名称】:电缆周期性和事故电流定额计算.不完全干燥土壤的一切电压电缆用周期定额因数
【标准号】:BSIEC60853-3-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-09-23
【实施或试行日期】:2002-09-23
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:额定电压;电容测量;数学计算;试验周期;载流量;应急电力设备;瞬时电压;高电压;应急电源;电容;容量;电气工程;电缆;电缆;事故带电作业;额定值;试验;周期性荷载;交流电源
【英文主题词】:Alternatesupply;Cables;Capacitance;Capacitancemeasurement;Capacity;Currentcarryingcapacity;Cyclicloading;Electriccables;Electricalengineering;Emergencyelectricalinstallations;Emergencypower;Emergencypoweroperation;Highvoltage;Mathematicalcalculations;Ratedvoltage;Ratings;Testcycles;Testing;Transientvoltages
【摘要】:ThispartofIEC60853givesamethodforcalculatingthecyclicratingfactor,forcablesofallvoltages,wherepartialdryingoutofthesurroundingsoilisanticipated.ThemethodisbasedononeofthethreemethodspublishedinaCIGREdocument.Themethodisapplicabletoanytypeofcable,butitisrecommendedthatitshouldbeappliedonlytoinstallationsofonemulti-corecableortothreesingle-corecablesortogroupsofcircuitswheretheintercircuitspacingissufficienttopermitfreeverticalmovementofsoilmoisturebetweenthezonesofdrysoilassociatedwitheachcircuit.Thisstandarddoesnotprecludetheuseofothermethodsofcalculationwherefulldetailsoftheloadcyclearenotknown.Themethodassumesthattheentireregionsurroundingacableorcableshasuniformthermalcharacteristicspriortodryingout;theonlynon-uniformitybeingthatcausedbydrying.Asaconsequencethemethodshouldnotbeapplied,withoutfurtherconsideration,toinstallationswherespecialbackfills,havingpropertiesdifferentfromthesitesoil,areused.note:1Methodsforcalculatingcyclicratingsforburiedcableswithpartialdryingoutofthesurroundingsoil:ElectraNo145,December1992,page32.
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-Audiovisualservices-Framestructurefora64kbit/sto1920kbit/schannelandassociatedsyntaxforinbandsignalling;EnglishversionETS300144:1996
【原文标准名称】:综合服务数字网(ISDN).音频视频服务.频带内信令发送用64千字节/秒至1920千字节/秒传输通道和语法的框架结构
【标准号】:DINETS300144-1996
【标准状态】:现行
【国别】:德国
【发布日期】:1996-08
【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】:数字的;记录;综合服务数字网络;传输规程;电信;视听设备;通道;构架结构;信号传输;电气工程;电信设备;定义
【英文主题词】:Audiovisualequipment;Channels;Communicationservice;Definition;Definitions;Digital;Electricalengineering;Framestructures;Integratedservicesdigitalnetwork;ISDN;Records;Signaltransmission;Telecommunication;Telecommunications;Terminaldevices;Transmissionprocedures;Transmissionspeed
【摘要】:Thisdocumentspecifiestheframestructureandthesyntaxfortheend-to-endinbandsignallingforaudiovisualservices.
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:60P.;A4
【正文语种】:德语