How to safely produce intermediate frequency DC spot welding machines?

1. The secondary voltage of intermediate frequency DC spot welding machines is generally relatively low, and there is no risk of electric shock. But the primary voltage is high voltage, and the primary voltage of the spot welding machine is generally 380 volts (single-phase or three-phase).

2. Anti pressure injury (collision injury). The intermediate frequency DC spot welding machine must be operated by one fixed person to prevent multiple people from mismatching.

3. Prevent burns. Welding work often produces spray, and protective covers should be used around the production area.

Thyristors are generally water-cooled and the cooling water is charged, so the welding machine must be reliably grounded. Usually, one pole of the secondary circuit is connected to the body and grounded, but there is some dust. When repairing the high-voltage part of the control box, the power supply must be cut off.

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