Electrical Wire Colour Code Singapore. The 3 types of electrical wires brown blue and green with yellow serve different purposes. Ground wires can be a bare wire a green wire or a green wire with a small yellow stripe. The existing cable colour code for fixed electrical wiring stipulated in the singapore standard cp5 1998 code of practice for electrical installations has been amended to align with international standards such as bs 7671 and iec 60446.
These countries follow the rule iec 60445 by iec. Earth or protective conductor. Electrical wire color codes. For a single phase ac system the preferred wiring colour codes for a single phase four wire system is as follows.
Live brown neutral blue and ground yellow green.
From i march 2011 all new electrical wiring shall comply with the new cable colour code. A copy of the supplementary guide to revised cable colour code may be purchased from toppan leefung pte ltd at 1 kim seng promenade 18 01 great world city east tower singapore 237994. Market hotline during office hours. Electrical wire color codes. Are the hot wire and carry electricity from the breaker into the source.