Using an electric pen to measure the two lines in front of the knife gate, why are both lines electrified?

1, zero line broken; 2, induced voltage; 3, 380V power supply;

Solution:

1, with a multimeter to measure whether the voltage is normal, such as not normal can be checked on the upper power line;

2, if normal means that it is the induced voltage, the upper zero line may be false caused by looking for the upper power to tighten the zero terminal can be;

3, 380V power then it means the upper string line;

3, stop immediately. Superior power supply to tighten the zero terminal can be;

3, 380V power supply, then the superior string line, immediately disable;