Lighting Wire Colours Uk

The neutral black has been replaced by blue.

Lighting wire colours uk.

These colours are called harmonised colours as they are closely related to those used in mainland europe. Power carrying core wire in a typical low voltage or domestic installation. In the uk the neutral wire colour is blue. How have wiring colours changed in the uk.

Before this change old wiring colours in the uk for 2 core wire were red live black neutral and earths are either bare or yellow and green whereas with 3 core cable live red blue neutral additional yellow and earth either bare or yellow and green. The bare earth wire in the cables above should be sheathed with a green yellow earth sheathing wherever it is exposed e g. Tv aerial cables do not carry any voltage but many are brown in colour the same colour as the new live wiring in the uk. The line red and has been replaced by brown.

In addition to household wiring all plugs in the uk feature the three colours of wire we mention above. The neutral wire transfers electricity away from the appliance to avoid overloading. The green and yellow cable prevents this from happening by earthing an electrical appliance. It is located at the end of the circuit for connection after the electricity has flowed around the live and earth wires.

The power to each lamp is connected via a wall or ceiling mounted switch. If you re in doubt call a sparky. In light switches ceiling roses junction boxes fand use boxes. The grey wire in cable d is a switched live and the blue wire in cable c and black wire in cable d are permanent lives and thus should be marked with brown sheathing at each end as shown.

Live wire cable colours in the uk and europe are brown. Many satellite and cable tv customers will have a black cable going into the back of the tv the same colour as the old neutral wire. It is highly unlikely that you will have an electric shock on contact with a blue wire. When connecting the cable the exposed earth connector must be covered with a sleeve coloured yellow and green to denote that it s an earth.

What colour is the live wire.