【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。更多还原

【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.更多还原