This stage translates the wiring schematic into physical reality. Electricians must strictly follow the design drawings, routing power cables (AC mains) and control lines (low‑voltage signal or bus cables) through conduits or cable trays. Best practice mandates physical separation between high‑voltage and low‑voltage cables – at least 30 cm apart or with a grounded metallic barrier – to prevent electromagnetic interference that could corrupt DALI or KNX signals. Each cable end is clearly labeled with its destination and function, and excess length is coiled neatly for future maintenance.
A professional case: in a 2,000 m² office smart‑lighting retrofit, the team used color‑coded conduits (orange for power, grey for control) and installed pull‑boxes every 15 meters to simplify fault‑finding. They also performed continuity and insulation resistance tests (500 V megger) on every circuit before energizing, catching two broken wires hidden inside the wall. This meticulous approach avoided hours of troubleshooting later and ensured that the system met local electrical safety standards, laying a solid foundation for reliable long‑term operation.
