Rule 1-3
1. Turn off the group before work — do not rely on «it was off». 2. Check absence of voltage with an indicator. 3. Work in dry clothes and dry hands.
Rule 4-6
4. Do not lay new cables in one channel with live ones. 5. Protect the wiring during finishing — cover the boxes. 6. Do not damage existing cables when chasing.
Rule 7-9
7. Grounding — 3 wires everywhere, check with a multimeter. 8. RCD 30 mA — mandatory for the renovation period. 9. Do not connect sockets without a box.
Rule 10-12
10. Keep water away from the panel and sockets. 11. After the work — test insulation resistance before switching on. 12. Do not accept the work without a test report.
Why rules matter
During renovation, risks are 3-5 times higher: open wires, wet walls, unfamiliar circuits. A simple scheme of the apartment helps you know what is where.
The scheme is the base
GorkyCAD draws the plan, marks the circuits and generates a scheme — hang it in the panel so everyone knows where to switch off.