电力电缆参数.doc

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1、电缆主要技术参数Maintechnicaldataofcable20℃时导体最大直流电阻Max.D.Cresistanceofconductorat20℃电压试验、局部放电试验Voltagetestandpartialdischarge导体短路电流Short–circuitcurrent电容、电感（参考值）Capacitanceandinductanceofcable(referencevalue)电容Capacitance单芯电缆电感Inductanceofsinglecorecable三芯电缆电感Inductanceofthreec

2、orescable电流载流量Thecurrentcarryingcapacity0.6/1kv聚氯乙烯绝缘电力电缆0.6/1kvPVCinsulatedpowercable(A)在土壤中的敷设Buried(A)0.6/1KV交联聚氯乙烯绝缘非铠装型电力电缆0.6/1kvXPLEinsulatedunarmouredpowercable(A)0.6/1KV交联聚乙烯绝缘铠装型电力电缆0.6/1kvXLPEinsulatedarmouredpowercable(A)3.6/6~26/35kv金属屏蔽层的短路电路Shortcircuitcur

3、rentofscreen单芯电缆Singlecore三芯电缆Three-cores·载流量计算条件：Currentratingsarecalculatedforthefollowinginstallationconditions:导体最高工作温度Max.Ratedtemperatureofthecableconductor聚氯乙烯绝缘为70℃，交联聚乙烯绝缘为90℃PVCinsulated70℃,XPLEinsulated90℃环境空气温度：Ambientairtemperature40℃土壤温度：soiltemperature25℃土

4、壤热阻系数：Ratingfactorsforgroundthermalresistive1.0.℃m/w埋设深度：Depth0.8m仅考虑一个回路Singlecircuitparallellaid单芯电缆为水平敷设,间距为一个电缆外径Singlecoreisparalleledinstallation.Adjacentspaceisequivalenttothediameterofcable.环境条件对电缆载流量的修正系数Ratingfactorsofcurrentratingforambientcondition土壤敷设Directi

5、nground不同土壤温度下载流量修正系数Ratingfactorsofcurrentratingforambienttemperature标准文件进行电缆载流量计算