Container House Wiring Layout

The wiring layout of container houses should take into account safety, practicality, and compliance with standards, requiring comprehensive design from aspects such as circuit planning, wiring methods, insulation protection, and grounding and lightning protection.

1. Circuit Planning and Zoning
Independent circuits should be planned according to the functional zoning of the house (such as living room, bedroom, kitchen, and bathroom) to avoid cross interference. For example, the kitchen requires a separate circuit for high-power appliances (such as induction cookers and refrigerators), the bedroom needs to reserve bedside sockets and lighting circuits, and the bathroom should consider waterproof sockets and exhaust fan power supply. The circuit routing should follow the principle of "horizontal and vertical" to minimize detours, and priority should be given to laying along corners, top corners, or baseboards to avoid damaging the structural strength of the house.

2. Wiring Methods and Material Selection

• Open Wiring: Use PVC wire troughs or metal conduits to protect wires, and direct exposure and fixing are prohibited. The wire troughs should be firmly fixed, and special elbows should be used at corners to ensure neat wiring and easy maintenance.
• Cable Specifications: Select outdoor-type cross-linked polyethylene insulated flame-retardant cables with independent insulation layers and sheath layers, with a long-term operating temperature of not less than 105°C and a voltage rating higher than the actual voltage by one level.
• Color Identification: Different functional circuits (such as live wires, neutral wires, and ground wires) should be distinguished by different colors for easy maintenance in the later stage.

3. Insulation and Protection Requirements

• Channel Insulation: Lay insulating mats in the aisles of battery rooms or equipment rooms, with an insulation voltage of not less than 5kV, covering all gaps and trimmed neatly.
• Fireproof Materials: The container filling should use rock wool boards or fireproof cotton that meet Class A fire resistance standards, avoiding the use of flammable materials such as polystyrene.
• Moisture-proof Treatment: Apply waterproof glue at the wire connections in humid areas (such as bathrooms) and install moisture-proof boxes.

4. Grounding and Lightning Protection Design

• Grounding System: All grounding posts should be kept clean, free of paint or rust, and welded to the container body at the same potential. The grounding copper bar should be connected to the metal shell to form a reliable equipotential network.
• Lightning Protection Measures: Install a high-quality lightning protection system on the roof, connected to the grounding bar through grounding flat steel or round steel. If the container is outside the original lightning protection coverage area, a separate lightning protection device should be configured, complying with the requirements of the "Code for Design of Lightning Protection of Buildings" (GB 50057).

5. Safety Regulations and Maintenance Convenience

• Sockets and Switches: Use metal galvanized boxes for open installation, avoiding the use of flammable materials for wrapping. High-power appliances should be equipped with independent circuit breakers to prevent overloading.
• Maintenance Aisles: Reserve maintenance openings in areas with dense wiring, and design the wire trough covers to be detachable for easy regular inspection of wire aging.
• Safety Distance: Maintain a minimum distance of 6 meters between container houses to prevent the spread of fire.