HotlineThe grounding wire can not be ignored for the engraving machine, which not only prevents the electric shock caused by the leakage of the machine, but also effectively prevents static electricity. So how is the grounding wire considered qualified? Simply say the following methods:
1. Dig 3 pits of 30 cm deep on the ground, 1 Prepare 3 angles of 3*30 and 2.5 m. At intervals of 3 meters, the angle steel is then piling into the ground. Then use 3*30 hot-dip galvanized flat steel to connect it with electric welding, and it is required to be lapped when welding.
2, can reach below 4 ohms, 2. Use the measuring instrument to measure the resistance of the net to the ground. The resistance is zero or below 4 ohms. Explain that the grounding device is qualified, you can safely draw the grounding wire from above.
3. Clean the hole around the hole. 3. Drill an 8mm hole at the top of the flat iron. Tighten the wire and flat iron again.
4. Finally, the wire is introduced into the user's wire slot. Increase a safe grounding wire in the power grid.