Just installed a log cabin about 100 ft away at end of garden, I already have a 6mm SWA 3 core cable buried to that site and protected with RCD at main consumer unit. I need an electrician ( awaiting visits for quotes) to install a consumer unit in the cabin, 8 double sockets, 1 switched ceiling pendant and two external security lights. Obviously I will go with the advice of the attending electricians who will install and certificate for me, just wanted a thought on whether the existing cable is sufficient. The cabin will use an oil filled heater, 2 kw, tv, Xbox, lamps.... Any thoughts please..