Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

(2) Identification of cable cores
(a) Every cable core of a non-flexible cable or bare conductors in a fixed
wiring installation should be identifiable at its terminations and
preferably throughout its length by appropriate labels, colours or
coding. Label and coding identification should be clearly legible and
durable and should be in contrast to the colours of the insulations.
The application of tapes, sleeves or discs of the appropriate colours
at terminations is acceptable. The use of colours and/or coding
should be in accordance with Table 13(2).
(b) Every cable core of a flexible cable or cord:
(i) for use in a single phase circuit should have its phase conductor
coloured brown and its neutral conductor coloured blue
throughout its length;
(ii) for use in a polyphase circuit, the phase conductors may be
coded L1, L2 and L3; and N for the neutral, if any.
(c) Every cable protective conductor should be coloured exclusively in
green-and-yellow.
(3) Identification of cables buried direct in ground
Where cables are buried underground, they should be identified by cable
cover tiles or identification tapes for the entire underground cable route.
The cable tiles or identification tapes should be marked with words
‘Danger-cables’.
Table 13(1)
Minimum Size of PVC Copper Conductors in sq. mm
under the General Installation Conditions
Listed in Code 13A(4)
Current Rating
1-Phase 2-Wire 3-Phase 4-Wire
(Amp)
5 .0 15 . 20 . 30 60 80 100 5 .0 15 . 20 . 30 60 100 150 200 300 400
Enclosed Condition 1.0 2.5 2.5 04 16 25 035 1.0 2.5 2.5 06 16 035 070
120 240 400
Clipped Direct 1.5 2.5 2.5 04 10 16 025 1.5 2.5 2.5 04 10 025 050 070
150 240
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