Replacement of wiring and main switchboard of an old house.
Replacement of wiring and main switchboard of an old house. The house was built in the 60s, 2 entrances, 4 floors. The old electrical wiring had become completely unusable and became dangerous. The house was powered by two phases. The neutral wire, which went from the main switchboard to the floor panels, had a cross-section of 4 kV and broke many times, was all in twists. Current of about 60 amperes flowed through it, the wire was hot and tended to burn out at any moment. The input cable and the cable that goes from the main switchboard to the entrance panels were replaced. SIP cable 4 * 25 was used. The branches for the meter are made without breaking the cable on the piercing branches.