GB/T 15544.4-2017

Short-circuit current calculation in three-phase a.c.systems—Part 4: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth

三相交流系统短路电流计算 第4部分：同时发生两个独立单相接地故障时的电流以及流过大地的电流