Hi all, I have 4 core 16mm SWA cable which is running at a length of 25 meters from consumer unit to extra big garage. We have a plan to maybe one day turn this into extra accommodation etc, which will run combi, ring circuit and a couple of light circuits, alarm. 16mm is big but i thought bigger is better. Anyway how would you advice on the termination to the consumer unit. Could i gland into a weather proof box and then come into the consumer unit with a small cable? If so what size cable would you use and if 4 core what color wires would you use for Live neutral and earth. what would you do with the 4th wire. The colors i have are red yellow blue and i forget the other one. I will put this on a 45amp breaker non-rcd side of the unit. Can you please advise.