currently wiring up an outbuilding,approx 60m away from main db,new 8 way cu goinig in outbuilding 1x 32a ring,1x 6a int light circ 1x 6a ext light circ 1x16a water heater circ 1x 6a security circ 3 spare,now ive been out the game 10 yr tho i done the app'ship and got jib card etc before going into security..and ive forgot loads already..the load on new outbuilding cu will be around 18a max(customers rating)iam thinking of running the supply from a spare 32a mcb on main power cu (theres 2 cu's already 1x lighting cu and 1 x power cu both protected by a 100ma td rcd the power board also has its own 30ma rcd) to the new cu,but with regards to earthing the supply and the new building do i supply new rod/ or use exsisting earth from main cu rod/ or connect both rods together/ earth the supply cable only from the main cu/ and use the new rod for earthing the outbuilding only..
i knew i should have stuck with sparky'ing
supply to outbuilding from tt supply
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