Ring Main Wiring Question

[deanflyer]

Hi,

First post here, and great site by the way.

In one of the bedrooms I am adding an additional power outlet. On lifting the floorboards I found (conveniently!) a junction box. It looks like the ring main has been spliced and a spur taken off to the other side of the bedroom for the power outlet there.

Is it okay for me to take a spur off this i.e. ring main with two spurs, or should I be doing something else?


Cheers,

Dean

 

[breezer]

why not make the new socket part of the ring (and the other one too)

 

[deanflyer]

Thanks for the quick reply!!

Because its an old house with really high floorboards with megathick plaster, which I have found out makes a total mess!! (isnt chasing out brick fun, not!!), and there is already a small hole I can use for routing the cable.

I admit this would be the ideal choice, but just wanted to check its legal and good practice to have multiple spurs off a junction box. I believe I use minimum 2.5mm cable.

Desn

 

[breezer]

its bad prctice and not allowed, which is why i suggested as i did

 

[deanflyer]

Thanks, thats what I wanted to know.

Should I remove the original spur as well, this will be a real bugger as its plastered halfway up the wall so would have to be chased out.

Dean

 

[sparkyspike]

You could keep the existing spur as it is to avoid chasing out plaster. But run two 2.5 cables to your new socket and wire it in as a ring. You'll need two JBs next to each other, unless one of the ring legs can be re-routed to your new socket in which case do that.

 

[RF Lighting]

And these joint boxes must remain accesible as per regulation 524.3

 

[deanflyer]

Thanks for the advice. Removed the spur and connected the ring main to the new outlet.

First time plastering too, what a messy job.