Extension to side of house. Electrics

[darren_forward]

I have built a Garage on the side of the house, If i extend the ringmain and the one of the lighting ccts into the garage for some sockets/lighting.

Does this come under Part P.

Thanks

Darren

[Nigel Molesworth]

I wouldn't extend the ring main, even if you are allowed to. Put in a new circuit with a 10mA RCD.

[Stephen Dawson]

The strict answer is yes is does, and ignoe the crap advice above, unless the garage has a swimming pool in it. However a seperate circuit from the house is a good dea, just not on a 10mA RCD.

Regards

Steve

[<me9]

However, that would definitely come under prat P, the former would not, but is less safe, so prat P (AKA 2jags) strikes again, resulting in a less safe system.

[Nigel Molesworth]

May I ask why you think this?

[Andrew Gabriel]

I don't know what Stephen has in mind, but IME 10mA RCDs are only useful where they are supplying a single appliance, and since you might want to run multiple appliances in your garage, that would be inappropriate. If you want to run a fridge or freezer in there, I would lay on a non-RCD protected supply just for that too.

I use a 10mA RCD (RCBO in fact) for my outdoor sockets, and they only get the lawn mower or hedge trimmer used singularly.

I used them in another house on each of two separate circuits, boiler in the bathroom, and a fan heater in the bathroom. One significant part of the reason in that case was I had them laying around unused, because their possible uses are rather limited.

[Dave Stanton]

I believe they are mainly intended for use in laboratory circuits or possibly farm circuits.

Dave

[Andy Wade]

All house wiring comes under Part P, it's just that some things are not notifiable work. The test & certification requirements of BS 7671 apply to all work, whether notifiable or not...