Interesting, hmmmm

In NZ we still have the old UK colours for fixed wiring in TPS cables, but the new European colours for flexible leads, so we seem to have one new standard adopted while retaining the original UK standard too.

About 4 or 5 years ago the colour yellow was supposedly phased out to be used for the 'B' phase and the White colour was introduced.

It was envisaged that yellow may be used for earthing conductor, although I have never seen that happen.

There were quite a few objections from within the industry because of old stock, so the deadline was lifted ?? not sure what date it was, and the colour Yellow can still be used in 3Ø circuits.

Perhaps Mike can fill me in re this NZ colour coding issue.


The product of rotation, excitation and flux produces electricty.