Old 4 Core Cable Colours

Other core colours are allowed except green and yellow.

Old 4 core cable colours.

Red red white. Multi core h07rn f wiring colours. The new coloured cables are referred to as harmonised cables the colours are harmonised across the eu. N line conductors old and new conductors.

Australia also have a different wiring colour standard. Red red white white. Where an addition or alteration is made to a two or three phase installation wired in the old core colours with cable to the new core colours unambiguous identification is required at the interface. Standard multi core lines are available with 2 cores 3 cores 4 cores or 5 cores however some manufacturers offer rubber flexible cable variants with up to 19 conductive cores.

Cores should be marked as follows. Pre march 2004 the uk standard for 2 core and earth cable used in single phase i e. The usa have their own wiring colours for electrical circuits black red and blue are used for 208 vac three phase. Brown orange and yellow are used for 480 vac.

Normal household installation was. Sab colour code for rtd connection cables. The uk s new cable colours for plugs are now harmonise with europe s power cable colours for ac dc. This type of cable is used to connect appliances such as lamps or extension cables to the power outlet sockets.

Marking inscription for identification of cores of electric cables number printing. Two core and earth cable new colours two core and earth cable old colours. 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.