Use and maintenance of grounding wire

- Jun 11, 2019-

Before using the portable short-circuit grounding wire, you should first confirm the power failure after the power check, and confirm that there is no voltage on the equipment. First connect the grounding clamp to the grounding grid or flat iron, and then use the grounding rod to tighten the wire end wire to the equipment wire. When the short-circuit ground wire is removed, the sequence is exactly the opposite of the above.


The short-circuit grounding wire installed, the distance between it and the live equipment, taking into account the influence of the grounding wire pendulum, its safety distance should not be less than the new value specified in the "Electric Safety Working Regulations".


It is strictly forbidden to short-circuit the ground by winding without using a wire clamp.

If there is a grounding point for the suspension point, use the grounding wire clamp or special copper rod as the grounding connection; if there is no fixed grounding point, it can be used; then the temporary grounding point can be used, and the grounding pole should be buried in the underground depth of not less than 0.6m.


Carrying type short-circuit grounding wire should be kept in a safe place. Before each use, it should be carefully checked whether it is in good condition, the soft copper wire is not exposed, the nut is not loose, otherwise it should not be used.


The inspection period of the portable short-circuit grounding wire is once every five years, and the inspection items are the same as the factory inspection. After passing the short circuit, the portable short-circuit grounding wire that has passed the test shall be judged according to the magnitude of the short-circuit current and the appearance test, and shall generally be scrapped.