电缆大截面导体交流电阻测试方法综述

The Summary of Measurement Methods on Power Cables Conductor AC Resistance with Large Section Area

IEC 60287-1-1(2006)中推荐的交流电阻计算方法适用于最大截面仅为1600mm^2的四分割导体。本文介绍了CIGRE相关报告中推荐的导体交流电阻测试方法,并采用功率计法对1600mm^2五分割导体进行了测试。结果表明采用此方法导体交流电阻测试结果与理论计算值间的误差最大为3.7%。CIGRE报告中已建议在例行试验中增加导体交流电阻测试,建议国内尽快开展相关测试技术的研究工作。

The cable conductors AC resistance calculation is basedon IEC 60287-1-1（2006）, but the largest conductors section area recommended in the standard is only 1600 mm^2 with 4 segments. In this paper, the testing methods recommended by CIGRE reportis introduced. The powermeter method is used for conductor AC resistance testing with 1600 mm^2, 5 segments. The relative deviation between the measurement AC conductor resistance and the calculated is 3.7%. CIGRE has recommended tomeasure the conductor AC resistance in the cables routine tests. So, it is urgently to do the research on the measurement for the large section conductor AC resistance.