What type of wires are used to fix the distribution box

Distribution boxes typically use insulated copper wires with specific gauges and color codes according to circuit type and load requirements.

Wire Types and Specifications

• Material: Copper wires are standard due to their excellent conductivity and durability. Aluminum wires are less common and usually reserved for high-capacity industrial circuits .
• Insulation: Wires must be properly insulated to prevent short circuits and electrical hazards. PVC or XLPE insulation is commonly used for indoor and outdoor applications .
• Gauge/Size: Wire size depends on the circuit load:
  • Lighting and socket circuits: 2.5 mm² copper wire
  • Air conditioning or heavy appliances: 2.5 mm² to 4.0 mm² copper wire
  • Main incoming supply: Larger gauge wires, typically 6 mm² or higher, depending on total load .

Color Coding

• Phase (Live) wires: Yellow (A phase), Green (B phase), Red (C phase)
• Neutral wire: Blue
• Protective Earth (PE): Green/Yellow striped Following these color codes ensures safety and compliance with electrical standards .

Wiring Practices

• Connection: Live wires connect to the circuit breaker terminals, neutral wires to the neutral busbar, and earth wires to the ground busbar .
• Routing: Wires should be neatly arranged, avoiding tangling, and secured with cable ties or channels to maintain organization and reduce short-circuit risks .
• Termination: Use proper crimping tools or screw terminals to ensure secure connections without loose ends .

Safety Considerations

• Ensure all metal parts of the box are grounded.
• Verify wire insulation integrity before installation.
• Follow local electrical codes and standards for wire selection and installation . By using the correct wire type, gauge, and color coding, and following proper installation practices, the distribution box will operate safely and efficiently while minimizing the risk of electrical hazards.