I want to take a supply from the house via a 4 core armoured cable 2x live (L1 & L2), 1x neutral, 1x earth. L1 and L2 taken from house via RCB.
The cable will be run to the shed, L2 via a switch in the house, and terminated at a jct box. L1 will then be split into 2, 1 feed taken from the shed...