Chasing: If concealed wiring is chosen, grooves must be cut into the walls and floors. The depth of these grooves should be sufficient to fully accommodate the electrical conduits, which are then secured in place using cement. When cutting horizontal grooves in load-bearing walls, care must be taken to ensure they are not excessively long, so as to avoid compromising structural integrity.
Conduit Installation: Electrical wires are threaded through the conduits. The combined cross-sectional area of the wires inside a conduit should not exceed 40% of the conduit's internal cross-sectional area; this ensures adequate heat dissipation. The wires should remain free to move within the conduit, facilitating easy replacement in the future.
Wiring Connections: Connections between wires must be secure, reliable, and adaptable. The traditional method involves twisting the wires together, soldering the joint, and then wrapping it with electrical tape. Nowadays, however, the use of wiring terminals (such as WAGO connectors) has become more prevalent; these offer ease of operation, stable connections, and enhanced safety.
Securing: Conduits and junction boxes must be firmly anchored using pipe clips, cement, or plaster to prevent them from becoming loose over time.
Labeling: Upon completion of the wiring installation, it is advisable to create a simple diagram of the circuit layout-or to document it with photographs-marking the locations of different circuits to serve as a reference for future maintenance and repairs.