RCD protection to outbuilding

[thompa25]

Not 100% sure on the requirements for RCD protection of outbuildings. I am going to run 10mm2 SWA, about a 20m Run, to a sub board in the outbuilding, buried in the ground. The main house is on a TN-S, and the outbuilding will have a 32Amp hot tub, a few small fridges, a couple TV's, sockets and lights. Do I have to RCD protect the supply from the main board in the house, or can I just protect my individual circuits from the sub board?

Cheers

 

[Rockingit]

If the SWA is installed correctly then there's no need to provide that sub circuit with RCD protection, but you absolutely WILL need it for all circuits being fed. Also - check manufacturers requirements for supplies and earthing regards the hot tub.

 

[telectrix]

and get some deeper pockets for when the leccy bill comes, powering that glorified pond.

 

[thompa25]

Tempted to stick in an earth spike for the tub, cheers for the replies. Yeah not looking forward to the bill but the misses is paying, so happy days.