The resistance must be calculated from the current and the resulting voltage drop using ohm is law. 根据电流和测出的压降值用欧姆定律计算出接地电阻。
The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage. 变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有着直接的影响。
