Precautions for Installing Conduit

"Conduit"—formally known as "insulating electrical conduit for construction"—is essentially a rigid white PVC pipe designed to prevent corrosion and electrical leakage while housing electrical wiring. Varieties include plastic, stainless steel, and carbon steel conduits. When embedding wires in walls, the use of conduit is mandatory; PVC or PE conduits are common choices due to their affordability, flexibility, and excellent insulation properties. 

For most households, PVC or PE conduits are excellent options. The key is to select a sturdy product; a simple test is to step on the pipe—if it doesn't collapse or flatten, it is of good quality. A final reminder: regardless of the conduit type used, electrical wires inside must not have any splices or joints. Electrical renovations should avoid creating "dead wires" (wires that cannot be pulled out or replaced). Even with high-quality wiring, future faults may necessitate line replacement. 

Being able to easily pull out and replace wall-embedded wires is crucial; therefore, installation work must prevent the creation of immovable "dead wires." Naturally, the most important step is to use conduit for all embedded wiring. Routing should follow the shortest path between two points; unnecessary detours not only increase costs but also risk creating dead wires. 

Do not overfill a single conduit with too many wires; after pulling the wires through, tug on them to ensure they move freely. If a wire connection or splice is necessary, it must be housed in a concealed junction box covered by a faceplate to facilitate future maintenance and replacement. For PVC conduits with a diameter smaller than 25mm, use a pipe bender to create turns rather than installing elbow fittings; sharp, right-angle bends often result in dead wires.