I need to move my Consumer Unit about 8 meters from its present
location. This will result in
shorter ring mains and lighting circuits. In fact the only circuit
'losing out' is the one that will
feed the garage and that runs off a 13A FCU in the lounge at present so
a better solution is
needed anyway.
At the moment there is 1 30A ring main for the whole house, but I am
going to have a separate
30A ring for the kitchen , plus a non-rcd radial for the fridge.
Existing CU has 16mm sq tails
and 60/80 company fuse.
I know its now past april 1st but I have 25 meters of black 25mm sq
meter tail (£5 in B&Q), but
the only red that seems to be available is 16mm sq. In a past post
someone mentioned that
running two live cables together from my switch fuse to the new CU is
permitted. I.e
two runs of 16mm sq red plus 1 run of 25mm sq blck. Is this correct ?,
(or does anyone want to swap 12.5 meters of 25mm sq red 6181y for 12.5
meters of my black ?).

PS The meter box is metal and in the hall. I intend to use the existing
conduits that take the
cooker/ring/lights/immersion to run my sub-main up into the ceiling
void above hall but
I read somewhere that live and neutral must go through same hole of a
metal box
else eddy currents would result. This is this correct ?,

Yes I do know about Part P.

Andrew