New Cable Colour Code

Technical Guidelines

Installation guidelines | Cable supply evaluation

Installation guidelines

Installation Guides - New Installation

The old cable colour code, i.e. red, yellow and blue for phase conductors and black for the neutral conductor, are to be replaced by the new one, i.e. brown, black and grey for phase conductors and blue for the neutral conductor, as specified in Table 1. Circuits for new installations should be wired in new colour coded cables (see examples in Figures 2(a) and 2(b)).
For a single phase installation, only the brown colour should be used to identify a phase conductor, irrespective of whether it is connected to the L1, L2 or L3 phase. For a room /flat /unit taking single phase electricity supply from a multi-phase power supply source, only brown (phase) and blue (neutral) coloured cables should be used.

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