How to Install Conduits in Container Houses

The installation of conduits in container houses requires selecting either exposed or concealed wiring methods based on the house structure, and following standard procedures to ensure safety and functionality.

1. Selection of Conduit Types

Commonly used conduits for container house installations include PVC pipes and metal pipes (such as JDG and KBG pipes). PVC pipes are corrosion-resistant and easy to bend, suitable for both exposed and concealed wiring. Metal pipes offer high strength and are suitable for power lines or scenarios requiring additional protection. For cold bending, specialized PVC safety sheath pipes can be used, which can be quickly formed into the desired angle with the help of bending springs.

2. Installation Steps for Exposed Conduits

1. Measurement and Positioning
   Determine the positions of distribution boxes, switches, sockets, and other equipment according to the design drawings. Mark the positions along walls, supports, or hangers. The spacing between fixed points on supports and hangers should be uniform, and the distance between pipe clamps and terminals, turning midpoints, and junction box edges should be controlled within the range of 150-500mm.

2. Processing and Fixing Conduits
   Process the conduits according to requirements. The bending radius should not be less than six times the outer diameter of the pipe and should meet the minimum allowable bending radius of the cable being installed. Use angle steel to make supports or hangers, and fix the conduits to the hangers with pipe clamps to ensure they are straight and level.

3. Conduit Connection and Grounding
   Use locknuts when connecting conduits to boxes or junction boxes. The pipe ends should be smooth and protrude less than 5mm from the boxes. Metal conduits should be grounded with round steel cross-connections, in compliance with design and acceptance specifications.

3. Key Points for Concealed Conduit Installation

1. Construction in Conjunction with Cast-in-Place Structures
   When installing conduits in concrete floors, walls, or columns, it should be done in conjunction with civil engineering work. For example, pipes in cast-in-place concrete columns should be laid in the middle section and tied to the main reinforcement at 1m intervals. Pipes in beams should avoid the ends and preferably be placed at one-third of the clear span.

2. Special Handling for Prefabricated Panels
   When laying conduits in prefabricated panels, accurately locate the positions of junction boxes in advance to avoid damaging the reinforcement structure. When laying pipes, avoid the main reinforcement to prevent affecting the load-bearing safety.

3. Protection and Sealing of Pipe Ends
   When concealed conduits emerge from structures, the pipe ends should be fitted with protective sleeves and sealed tightly to prevent concrete infiltration. For example, when conduits in cast-in-place concrete columns emerge from the formwork, they should be fixed with sleeves and securely glued.