Multi-core 1.5 mm² electrical cable

Key Terms Explained

1.5 mm² Conductor Area

• This means each conductor inside the cable has a cross-sectional area of 1.5 square millimetres.

• This size is commonly used for light circuits, socket spur circuits (varies by code), fixed appliances, and control wiring.

Conductor

• Usually copper, often stranded for flexibility (easier to pull through conduits).

• Stranded copper conducts electricity better and flexes more than solid copper.

Number of Cores

• 2-core: Phase + Neutral (plus earth separate)

• 3-core: Phase + Neutral + Earth

• 4-core: Phase + Neutral + Earth + control/signal or additional line
  (“Multi” means multiple insulated conductors inside one sheath.)

Rated Voltage

• Typical building wires are rated 450/750 V — meaning safe use on typical AC mains circuits.

Typical Uses

Lighting circuits (e.g., LED lights, switches)
Small fixed appliances
Control panel wiring
Doorbells, sensors, low-power loads
Switch loops and junction wiring

Current Carrying Capacity (Typical Guidance)

These values vary with installation method, ambient temperature, grouping of cables, and insulation type — always follow local wiring regulations.

Safety & Installation Tips

• Always use a properly rated circuit breaker (MCB/RCD) upstream.

• Ensure the cable’s earth/ground conductor is present and connected.

• Do not overload 1.5 mm² cables — oversizing loads can cause overheating.

• In bathrooms or outdoors, use appropriate cable type and protection.