In article ,
Dave Plowman (News) wrote:
In article ,
No Name wrote:
Old/New
L1 Red/Brown
L2 Yellow/Black
L3 Blue/Grey
N Black/Blue


the swapping of blue and black between the old and new colours must be
confusing and responsible for a few bangs!

Anyone incapable of transposing the colours really shouldn't be playing
with electricity, let alone 3 phase.

However, troubles can arise when there are modern additions to an older
installation. "is that Black (or Blue) a phase or a neutral?"

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle