Analysis results show that within the frequency band from 1MHz to 30MHz the impedance of low voltage power network varies from more than ten ohms to one thousand ohms and in general it decreases with the increment of frequency.

• 分析结果表明在1~30MHz频段,其阻抗值在十几欧姆到上千欧姆之间变化,总体上随频率的升高而降低;