hi i need a power supply to my garage/workshop, i have a spare in my consumer unit in my house type b 32a mcb, and will i need a 4mil swa?? or 6mil swa?? from the cu in the house to the garage cu,(63A. 30MA. RCD., 1 x 6A lights + 1 X 16A scokets. MCB),, i will be useing a welder, grinders with a(240...
