| 控制电缆电阻值超标问题分析及实例计算 |
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| 引用本文： | 卢建华,张喜儒,菅晓清. 控制电缆电阻值超标问题分析及实例计算[J]. 内蒙古电力技术, 2013, 0(6): 51-54 |
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| 作者姓名： | 卢建华 张喜儒 菅晓清 |
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| 作者单位： | 内蒙古电力勘测设计院,内蒙古呼和浩特010020 |
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| 摘 要： | 变电站运行中控制电缆电阻值超标极易带来事故隐患。采用实测的电阻值超标的控制电缆数据，对不同用途（控制及信号回路电缆、测量表计电流回路电缆、保护电流回路电缆、电压回路电缆）下控制电缆的长度进行了计算，得出该型号电缆在实际工程中使用的极限长度，为电力电缆设计、工程施工提供参考。
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| 关 键 词： | 控制电缆 直流电阻 TA二次负荷 TV二次负荷 电导系数 电缆截面 |
Cable Electric Resistance Overproof Analysis and Calculation Example |
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| Lu jianhua,Zhang Xiru,Jian Xiaoqing. Cable Electric Resistance Overproof Analysis and Calculation Example[J]. Inner Mongolia Electric Power, 2013, 0(6): 51-54 |
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| Authors: | Lu jianhua Zhang Xiru Jian Xiaoqing |
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| Affiliation: | (Inner Mongolia Electric Power Survey ＆ Design Institute, Inner Mongolia Hohhot 010020) |
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| Abstract: | This paper analyzed the hidden danger of cable resistance value overproof in the substation operation for the problem of control cable in power engineering. Classified control cables as four types, control and signal circuit cables, measuring meter current circuit cables, protection current circuit cables, voltage circuit cables by investigating secondary load of mainstream secondary equipment manufacturers products and theoretical calculations. In this paper, maximum length of cable in the practical engineering was provided in detail. The achievement of this paper would be useful to engineering design and construction. |
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| Keywords: | control cable direct-current resistance TA secondary load TV secondaryload conductance cross-section of cable |
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