Caravan Park Wiring advice pls

[SteveR]

I have been asked to wire some electric hook ups on a small caravan site. I don't normally do this type of work but work is tight at the moment. there are 10 x 16 amp double points (32 amps per pole), the furthest pole from the fusebox is 185m.

The cable is SWA and is buried underground, the manufacturers say this needs to be 10mm 3 core, but I think this is a little on the large side, can you tell me your opinion?

Also on a caravan park it needs to be a TT system, do you think I need to put an earth spike for each pole or would 1 cover the site?



thanks in advance

 

[Sintra]

Volt drop on 10mm SWA 185M long at 32A is 26.05V well above the 5% allowed of 11.5V. Might have to go bigger mate.

 

[ian.settle1]

Haven't got the BRB handy but they have to be RCD protected at each socket as well and only one caravan per socket I think .

 

[Dean]

If it's a TNCS supply. I'm sure each socket oulet require a spike connected to cpc.