The laser cutting machine needs strong power to ensure its stable operation. Because of the strong current connection, the grounding wire is a very important part of the use process, but it is often easy to be neglected. Poor grounding may cause the machine shell Leakage phenomenon occurs, causing personal safety hazards. So how can grounding be correct and effective? Today I will share with you the correct method of grounding the laser cutting machine.
Pay attention to the safety of electricity, the correct method of the laser cutting machine grounding wire
Preparation before grounding:
1. The grounding device must be driven into any damp place around the house with 2-4 4×35×1500mm angle steels, each with a distance of 1 meter, and then use a 3×30mm flat iron to lead out each connection The soil surface forms a good grounding network.
2. After laying the grounding net, use a meter to measure its resistance to ground. The standard resistance is 3~5 ohms.
3. After the resistance value is measured, use a RVV2.5mm2 copper core wire to connect one end to the leading end of the grounding net, and one end into the grounding hole of the socket used by the laser cutting machine.
Installation steps:
1. First find a damp place around the house, dig a 1.5m2×300mm soil surface, then use the prepared angle steel to drive into the soil, and then use 3×30mm flat iron to connect them with electric welding or use 8mm holes to add screws Connect (file around the hole with a file, and then coat it with petrolatum), lead to the ground 2 meters high, and bury the earth in the grounding net.
2. Use a measuring instrument to measure the resistance of the network to the ground.
3. Drill an 8mm hole on the top of the lead flat iron, file around the hole, and then coat a layer with vaseline, then tighten the wire and the flat iron.
4. Finally, lead the wire into the user's wire trough and add a safety grounding wire in the power grid.