Electricity near a bath

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Electricity near a bath

Post by Tony H on Fri Dec 13, 2013 8:50 am

I have acquired a spa bath that I would like to fit in my bathroom reno.

There is no problem with me getting an electricity supply by the bath but how should I connect it without breaching the various permitted zones. I have a copy of the zoning but not the full official ' installation electric'

Le Dolly... you are the expert... some advice please. Thanks

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Re: Electricity near a bath

Post by Le-Dolly on Fri Dec 13, 2013 1:11 pm

Hello Tony, first things first, I never refer to myself as an expert, I may have been playing with electricity since my ninth birthday, but I am still learning daily.
Without knowing the layout of your bathroom it is difficult to give a definitive reply. The electrical connection for this appliance probably should be in Zone 3 or beyond. Appliances such as razor points, chauffe d'eau and heaters can be fitted in Zone 2 but they must be rated at IP4 or higher. But my first thought would be to think laterally. Is the wall adjacent to the bath an internal wall? I might be minded to arrange for the electric supply to be on the outside of the SdB, therefore not having any zoning issues. Fix a outlet plate (sortie de câble) to the interior wall and pass the cable from the bath through this and then a hole in the wall and to another 'sortie' on the other side (without a break in the cable) and hence to a socket or power the external sortie itself. If you do decide to have the electrical supply in the bathroom, I would suggest a 'sortie de câble' on the wall and not a socket, it saves the temptation to pull the plug with wet hands. I would probably supply the bath/socket with it's own disjoncteur at the fuse board fed via a Type A Interrupteur Différentiel.
If you have any further questions, do not hesitate to ask.

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Re: Electricity near a bath

Post by Tony H on Tue Dec 17, 2013 4:08 pm

Thanks for the suggestions Le -Dolly.  Bit late replying as I was away for the weekend.

I don't have an interior wall as such but you prompted an idea. The bath has a waterproof 'junction box' so I am proposing to wire directly into that and take the cable to the far side of the room behind a false wall that the end of the bath adjoins and then connect this cable in a blanked off flush mount junction box, that the mains feed (from a separate disjoncteur) arrives at. This box would be at the opposite corner from the bath and about one metre from the nearest water, the wash basin. I will seal it with silicon so it should be fairly waterproof and is unlikely to be splashed any way as it it out of the way.

The only way of isolating it will be via the disjoncteur at the tableau. Not sure if that is all totally legal, but is the best I can come up with.... sound reasonable ??

Tony

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Re: Electricity near a bath

Post by Le-Dolly on Tue Dec 17, 2013 7:38 pm

Tony H wrote:Thanks for the suggestions Le -Dolly.  Bit late replying as I was away for the weekend.

I don't have an interior wall as such but you prompted an idea. The bath has a waterproof 'junction box' so I am proposing to wire directly into that and take the cable to the far side of the room behind a false wall that the end of the bath adjoins and then connect this cable in a blanked off flush mount junction box, that the mains feed (from a separate disjoncteur) arrives at. This box would be at the opposite corner from the bath and about one metre from the nearest water, the wash basin. I will seal it with silicon so it should be fairly waterproof and is unlikely to be splashed any way as it it out of the way. Junction boxes should be 'accessible', I am not totally convinced that the silicon would make it so, or is necessary, but it would improve the waterproofing.

The only way of isolating it will be via the disjoncteur at the tableau. Not sure if that is all totally legal, but is the best I can come up with.... sound reasonable ?? Sounds perfect to me, and totally the way to go.

Bon courage.

Tony

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