In article ,
charles wrote:
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?"

Then check before doing anything? A simple volt meter will tell you if it
is a 'phase or neutral'.

--
*If you try to fail and succeed, which have you done? *

Dave Plowman London SW
To e-mail, change noise into sound.