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.
Usually copper, often stranded for flexibility (easier to pull through conduits).
Stranded copper conducts electricity better and flexes more than solid copper.
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.)
Typical building wires are rated 450/750 V — meaning safe use on typical AC mains circuits.
Lighting circuits (e.g., LED lights, switches)
Small fixed appliances
Control panel wiring
Doorbells, sensors, low-power loads
Switch loops and junction wiring
| Cable Type | Approx. Current Rating |
|---|---|
| 1.5 mm² copper (PVC insulated) | ~ 10–16 A depending on installation conditions |
| 1.5 mm² copper (XLPE insulated) | ~ 15–20 A depending on installation |
These values vary with installation method, ambient temperature, grouping of cables, and insulation type — always follow local wiring regulations.
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.
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