This design is verified by HAP program, the equivalent interferingcurrent calculated by HAP is under the limited level.
运用谐波分析程序（HAP）对此方案进行校验，等效干扰电流达到了标准要求。
2
Equivalent interferingcurrent is an important parameter to calculate interfering influence of H. V. power line on communication line. It is a statistic value created on the basis of measurements.
等效干扰电流是计算高压电力线路对电信线路干扰影响的一个重要参数，它是一个建立在测量基础上的统计值。
3
Guarding implies the use of an added low impedance conductor, maintained at the same potential as the high impedance circuit, which will intercept any interfering voltage or current.