Twin and Earth Cable
Twin and earth cable (also known as T&E) is used for fixed wiring in household applications such as sockets, switches, cookers, showers and light fittings,
| Cable Size | Application |
| 1.5mm | Lighting circuits |
| 2.5mm | Ring main (socket circuit) |
| 6mm | Cooker and smaller electric shower circuits |
| 10mm | Larger electric showers |
In April 2006 the colour of the core insulation changed. Red (live) changed to brown and black (neutral) changed to blue.
Cable is measured by the area of the conductor in square millimetres ( mm² ), not the diameter.
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