Thanks to everyones tips I've now installed my new consumer unit, and
as an added bonus most of the cables managed to reach the new unit and
so didn't need extending. Those cables that didn't reach are still
being fed from the old CU which is in turn being fed from an MCB on
the new CU, (as a temporary solution). Installing the new 25mm^2
tails was a barrel of laughs, and here's a tip for fixing them to the
wall- 15mm pipe clips make a good substitute for cable clips if you
happen to have some lying around, (although they are a fraction on the
A couple of quick questions have arrisen since this migration:
The kitchen ring circuit had three wires attached in the (old)
consumer unit. Chasing this out it seems that there is a 'standard'
ring and an additional circuit feeding only one double socket, (also
in the kitchen). Am I right in thinking that this is in fact OK - the
lone socket is simply classed as a spur, but rather than being taken
from an existing socket or from a junction box it is taken direct from
the CU? (AFAIK there are no other spurs on the ring, so it is well
below the requesite spur/socket ratio).
Secondly, one of the other existing circuits looked to be wired in
fairly new cable, but when I came to strip the live conductor I had a
hell of a job removing the insulation. - I was only trying to remove
10mm of insulation to fit into a terminal, but it seemed like the
insulation had become stuck to the copper. Has anyone encountered
this before? - Is it just cheap cable, or is it a sign that the cable
has overheated in the past?
Oh, and in case anyone was wondering about my original left to right
or right to left question, it all became apparent.... When I wrote
the original post I was staring into the inards of the CU - of course
when I put the the cover back onto the unit the MCB slots were already
numbered on the outside of the case!! - Doh! (Right to left by way).