Installation and use of AC welding machine should pay attention to what problems

1) Before installation, the arc welding machine should be checked whether it is intact; whether the insulation resistance is qualified (the primary side insulation resistance should not be less than 1MΩ, the secondary side insulation resistance should not be less than 0.5MΩ.

2) The arc welding machine should be compatible with the environmental conditions of the installation and should be installed in a dry, well-ventilated place, and should not be installed in a flammable and explosive environment, corrosive gases in the environment, there is a serious dust and dirt environment or Violent vibration of the environment, and should avoid high temperatures, pools. Outdoor use of arc welding machine should be taken to prevent rain and snow, dust measures. Workplace away from flammable and explosive materials, combustible materials below should take appropriate safety measures.

3) arc welding machine primary side of the rated voltage and the power supply voltage, wiring should be correct, should be wired through the terminal row. Multiple welders try to evenly split in two-phase power supply to try to maintain two-phase balance.

4) arc welding machine primary side fuse fuse rated current is slightly greater than the arc welding machine rated current can be; but the rated current of the fuse should be less than the permissible current of the power line conductor.

5) the length of the primary side line generally should not exceed 20 ~ 30m, otherwise, the voltage loss should be calculated.

6) arc welding machine shell should be zero (or grounded).

7) arc welding machine a side of the welding clamp connection line shall not be connected to zero (or ground), a side of the other line can only be a little bit of zero (or ground), in order to prevent part of the welding current through other conductors constitute a circuit.

8) Mobile welding machine must be powered off.