Three Phase Sauna

[Robert Casey]

Hi, I was wondering if I could get a little advice off you guys. I'm installing an three phase 8kw sauna over roughly a 50m run. The board is a typical 20-30yr old three phase commercial board with no rcd protection. I'm thinking 5 core 2.5 swa for the cable up to the sauna then into some kind of box or isolator and then down in 5 core 2.5 flex and into the unit. What I need help with is I guess as there is water involved it will need some sort of rcd protection. I'm wondering if someone could advise me on what isolators and or rcds I will need. I don't work with three phase too often so any any advice would be appreciated as I have to do this correctly for obvious reasons. Thanks!

 

[topquark]

Rooms containing saunas are "Special Locations" and as such the work is notifiable if this is in domestic premises. Section 703 in BS 7671 (page 179) covers the additional requirement necessary for rooms containing saunas.

 

[Knobhead]

For gods sake you're entering a minefield blindfolded.
Spend the W/E reading the reg’s before you kill someone on Monday.

Please pass this job over to someone that knows what they are doing!

I'm not being nasty, I’m trying to save your skin from the lawyers!.