PVC conduit, also known as "building insulated electrical conduit," is a type of electrical conduit made primarily of white rigid PVC, mainly used for wiring protection in the construction industry. It is available in three material categories: plastic (such as PE corrugated pipe), stainless steel, and carbon steel. Plastic pipes conform to the JG 3050-1998 standard, published on December 3, 1998, and implemented on March 1, 1999. Stainless steel pipes are suitable for protecting the wiring of precision instruments, while carbon steel pipes use Q235 material for welding connections.
This product features corrosion resistance, leakage prevention, a smooth surface, a pressure resistance exceeding 2.5MPa, and can be used in environments ranging from -15℃ to +40℃, with a lifespan of over 50 years. PVC insulated electrical conduit also features pressure resistance, impact resistance, moisture resistance, acid and alkali resistance, flame retardancy, insulation, insect resistance, and ease of installation. Conduit wiring is fundamental for "live wiring," preventing damage to the wire insulation, preventing fires, and providing heat dissipation. During installation, ensure there are no joints inside the conduit to avoid dead wires. The distance between strong and weak current lines must be greater than 500mm, and they must not be in the same conduit. Depending on the usage scenario, standard flame-retardant conduits are used in ordinary residential buildings, while flame-retardant conduits of B1 grade or higher are required in high-fire-risk areas. Fire protection wiring must use conduits that meet the standards of the Ministry of Public Security.
When wiring, junction box connections must be tinned and double-insulated. Ceiling conduits must pass through the suspended ceiling, and the wooden joists must be fireproofed and insect-proofed.
