Old 3 Core Cable Colours

Other core colours are allowed except green and yellow.

Old 3 core cable colours. Red yellow blue black green and yellow. Sab colour code for rtd connection cables. If you have the previous colours red black and green earth or bare earth very dangerous we would recommend you have an electrician test to check the integrity of the cable as it could be more than 50 years old and unreliable.

A transition period of 24 months from 1 mar 2009 to 28 feb 2011 is given before the new cable colour becomes mandatory on 1 mar 2011. Red yellow blue black. This type of cable is used to connect appliances such as lamps or extension cables to the power outlet sockets.

3 core and earth 0ld cable colour variation if the wiring in your house is older than the 31st march 2004 and you have had some work done e g. We always used yellow for earth if using 3 core swa for single phase so now use black with g y sleeve. The uk s new cable colours for plugs are now harmonise with europe s power cable colours for ac dc.

You should also be looking at the condition of cables as well as the sheathing of the cables. Red to brown yellow to black blue to grey. Red red white.

Green yellow brown black live line 2 grey live line 3 5 core. During the transition period either the old or new cable colour code but not both may be used. An extension or partial rewire you may have a combination of the old and the new harmonised colours.

Australia also have a different wiring colour standard. Green yellow earth blue brown 4 core. The flex cable flexible cord cable has three cores being live earth and neutral.