How to measure low voltage line grounding with pliers
Low voltage power supply has single-phase (two lines), three-phase (three lines), three-phase four wire three kinds of situations.
Clamp current meter range is large, generally used only for current measurement circuit, the zero sequence current can not accurately measure the line leakage current and three-phase circuit.
Two lines, three lines or four lines at the same time through the current clamp meter is 0 normal without grounding. If there is an electric current indicating leakage, it is possible to ground.
