I've started a thread on this as it is so far OT from where it was in RCBO doesn't align...
From my notes this is how we left the factory lighting, orange circles represent a light fitting. This was one 3ph board powered by a 3ph contactor.
I wasn't happy with the silly combinations of colours but it wasn't my call.
EDIT: line 7 colour corrected
Indeed this is my understanding of the situation, however using 'wrong' or 'old' coloured singles without markings seems to be a big no-noAs I understand BS7671, if conductors are identified by numbers/letters, then it doesn't matter what colour they are, so long as green and G/Y are not used for live conductors (and even G/Y in multi-core cables might be acceptable, if identified by numbers/letters).
Kind Regards, John
From my notes this is how we left the factory lighting, orange circles represent a light fitting. This was one 3ph board powered by a 3ph contactor.
I wasn't happy with the silly combinations of colours but it wasn't my call.
EDIT: line 7 colour corrected
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