ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Wiring methods in U.K.

Thanks Scott.

So presumably where all phases were run in black they used tags or something similar for phase identification, where necessary?

I seem to recall a thread a while back discussing that in many areas red was used for the wild-leg on 4-wire deltas in the past, before the NEC requirement for it to be orange.