How can the grounding instrument measure the resistance of the grounding grid?
Insert two ground rods into the ground 400mm deep, one away from the grounding body 40m and the other away from the ground body 20m.
Disconnect the connection point between the grounding line and the ground, or disconnect the connecting points of all the grounding branches on the grounded line.
Place the meter on the level near the ground, then line up.(1) connect the connection pile E and the grounding of the grounding device 'E' with a connecting line.(2) connect the grounding rod C and the grounding rod 40m away from the grounding body with a connecting line 'C'.(3) connect the grounding bar P and the grounding block 20m of the meter with a connecting line P'.
