Garage consumer unit

[jon3674]

I am wanting to put power in my garage(this has been built attaching the house), i intend to have a ring main with 8 sockets and a lighting circuit, would i be right in saying that if i run a 10mm cable from the main consumer unit in the house to a new consumer unit in the garage it would be ok. What size breaker would i need to put in the house consumer unit? would this be on the RCD side or not?

Thanks for any help

 

[comms]

I'd put a 32amp mcb at house cu run cable to new garage cu.
From new cu in garage run 4mm T/E radial for sockets with 16amp or 20amp mcb in garage cu.
From garage cu run 1.5mm T/E for lighting with 6amp mcb in cu.

Or seen as you have a spare way on house cu why not look into running circuit for garage sockets (ring or radial 2.5mm for ring or 4mm radial)from this cu protected by a 32amp mcb, then use a fused spur fused down to 3 amp for garage lighting. (not knowing distances between garage & cu this is just an idea).

Which ever you do it's notifiable work

 

[Steve]

If you're running 10mm cable to a second CU, use a B50 MCB. Then a B32 in the garage for the sockets.