电力电缆线路保护区：地下电缆为线路两侧各零点七五米所形成的两平行线内的区域；
Power cable route protection zone: the areas between two parallel lines formed by 0.75 meters on both sides of the ground mark of underground cable route;
专线供电模式中，线路电抗性质所引起的无功损耗对线路两侧无功计量量值的影响，是客观事实。
In the special power supply model, the reactive power losses caused by the line reactance have an influence on the measurement of reactive power on both sides of the line, which is an objective fact.
基于行波的输电线路双端测距算法只用到到达故障线路两侧母线的第一个故障初始行波波头，其可靠性较高。
Based on the traveling wave, double ended approach only deals with the first transient traveling wave reaching the two buses of the fault line.
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