直流接地极接地电阻、地电位分布、跨步电压和分流的测量方法
Measurement Method for Earth Resistance,Ground Potential Distribution,Step Voltage and Current Dividing on Earth Electrodes
2012-04-06
AQ/T 4106-2008
烟花爆竹作业场所接地电阻测量方法
Guide for measuring ground impedence of a ground system in firecracker working place