Hi.
Just thinking on while I'm rewiring the kitchen I may as well lay down the cable to reach the shed in the back yard.
I used 10m of 6mm cable to reach the cooker connection unit so I'll need only 20m maximum to reach a box in my shed.

1st question : It will be a separate breaker in the CU so white size cable to use 6, 4 or 2.5 ?

Thanks.

Arthur