I'm gradually homing in on a design here. But I do need a bit more of your help.
I think the home consumer unit is sussed - I'm getting a MK sentry split load with RCD (30mA) and 100A switch.
From the Home CU, I will run about 120ft (~50 metres) 10mm 3-core SWA to the workshop.
Q1. Should an isolator switch for the workshop be at home, or in the workshop? Q2. I think I should run all circuits EXCEPT lighting behind an RCD? Individual RCD's and RCBO's (for MK Sentry at least) seem prohibitively expensive. Any recommended kit or setup for this?
Also, from the home CU, I will run 6.5mm cable to an outbuilding (old coal shed), where I will run a few sockets, 2 ordinary light bulbs, a halogen light, a halogen security light, and some low voltage uplighters. I imagine 4 circuits for this.
Q3. I assume for this CU, I should run EVERYTHING behind an RCD? Q4. Isolator switch? Where - indoors? in the outbuildings?
Many thanks Mark