I have an electric supply to my garage (which is about 20 yards from the house) this is from a 4 core armoured cable about 4mm. This supply has been in for some years. From the CU in the house 2 of the positive wires are from 2 different fuses, but in the garage these 2 positives seem to go to just one junction as do the 2 negatives. Would it be possible to put the 2 Positives in the CU together on posible a higher rated fuse, and then put a sperate small CU unit in the garage and adjust the fuses there to accomodate lights and sockets. At the moment I need to switch of 2 'fuses' in the CU unit to isolate any item in the garage
Thanks