My brother in law has just signed for 3kw of pv on his garage roof. Company confident they can beat the Dec deadline.
Trying to make sure there are no hitches along the way and he asked me have a quick look at the electrics.
House has single phase supply (100A) into main distribution board via board fuse and old style meter (
).
Supply is I think PME -earth supplied from pole.
Distribution board is older mcb with 30ma RCD fused DP switch.
Garage is supplied via relatively new 4mm 3 core SWA dedicated circuit in dist' board -fused with 30A mcb.
Garage has Wylex 4 way rewireable fuse type board. One 15A radial to freezer only. One other circuit to pond pump but not in use so fuse removed.
My question is what do we need to do to have dedicated inverter circuit here ?
Can we use one of the 2 spare ways? do we have to fit mcb (not rewireable fuse) and is it permitted to have the mcb protruding through the rewireable fuse cover ?
Really looking at minimum requirement / common sense option here. What would you do if it was yours?
Inverter will be SMA Sunnyboy to handle 3kw, -have seen issues with 30ma rcd on this forum, -do we fit and see ?
All useful advice as always greatly appreciated.
Have removed fuse cover for photo.
