Naturally, the equipment for this type of welding is required to repair CEBORA — one of the manufacturers of the most progressive welding machines, has the service center for repair and maintenance of equipment. Therefore, the operation of devices of this manufacturer is the most popular in our country. Today, along with an increase in the use of welding installations using a controlled cap (Criminal Code), enterprises engaged in welding work in production, carry out constant certification of equipment. The basis of welding installations implementing the Criminal Code is a fast -acting inverter power source. The main feature of the Criminal Code (regardless of the species) — they are characterized by a large frequency of the cap (more than a hundred Herz).