The requirement is to feed two outhouses with up to 6 Kw of power to each.
SWA buried
Each outhouse will have its own 32 amp MCB at the house. No RCD on these circuits in the house.
The outhouses have a party wall so a single 4 core cable could be run and the pairs separated to the two RCD equiped consumer units, one on each side of the party wall.
Or two separate 2 core cables could be used.
10mm is within the budget.
Earthing will be TT at the outhouses. SWA earthed at the house end.
Are there any reasons not to use 4 core ?
SWA buried
Each outhouse will have its own 32 amp MCB at the house. No RCD on these circuits in the house.
The outhouses have a party wall so a single 4 core cable could be run and the pairs separated to the two RCD equiped consumer units, one on each side of the party wall.
Or two separate 2 core cables could be used.
10mm is within the budget.
Earthing will be TT at the outhouses. SWA earthed at the house end.
Are there any reasons not to use 4 core ?