Principle of hand type grounding resistance tester
Method for using hand type earthing resistance shaking watch:Material: two grounding rods, a 40M grounding wire, a 20M grounding wire, a 5M connection line, a grounding resistance shaking table1. 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.2, the two ground rods were inserted into the ground 400mm deep, one away from the grounding body 40m far away, and the other root away from the grounding body 20m far.3. Place the meter on the level near the ground and then connect.
Grounding resistance refers to the grounding resistance and the soil dispersion resistance embedded in the ground. The ZC grounding resistance measuring instrument (or ground resistance meter) is usually used to measure the grounding resistance. The shape of ZC-8 meter is similar to that of ordinary insulated shake table. It is also called grounding resistance meter according to habit. The shape and structure of the ZC type shaking meter vary slightly with the model, but the methods of use are basically the same. The measuring instrument is accompanied by two grounded detecting rods and three wires.
(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'.
