That , I don't know. Only recently moved in. Will trace it back, but I would think its off the upstairs ring, knowing the way the previous people did things. The cable reaching the garage is thicker than the ring cable IN the garage, though I am not au fait enough with cables to say what the cable rating is.
I take it the garage should have a feed from its own mcb (there is a spare slot at the main board)? Not gonna do owt meself, but am interested in what's required.
Having just read some other posts on the subject, if the supply IS "just" a spur from the ring main in the house, would fitting an FCU on that supply as the spurring point be appropriate? The garage is connected to the house via a porch roof, cabling going somewhere thru the latter's roof space.
