I am putting in a new underground SWA XLPE 2-core cable to the garage/workshop at the bottom of the garden.
The cable length from the consumer unit to the worshop is 16m inside the house then 48m outside the house (total 64m).
The load in the workshop will be protected by a RCD there. I anticipate that the worst case simultaneous load will be a drill, soldering iron, 2kW heater, desktop p.c./monitor. and some lighting.
What should the conductor size of the SWA cable be (6 sq.mm? 10 sq.mm? more?) to avoid excessive voltage drop?
The calculator at
What rating MCB should be chosen to protect this cable from the consumer unit?