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Hi,

As you may guess from the post title, I need to add a second socket. It is in an outhouse, built onto the main building. There is currently a single socket in the outhouse, which is spurred off the first-floor mains ring.

I believe the regs say any additional socket must be daisy-chained from the existing one. However, as the mains feed enters into the outbuilding, it passes through a 30A junction box, which doesn't do anything at all (i.e. one wire in, one wire out). This junction box is in the perfect location to take the second socket where it needs to go, but I am guessing the junction box is treated no differently to a socket, and so I am not allowed simply to put another wire into there to go to the second socket?

I'll try to clarify all of this:

I currently have this: RING-MAIN---30A-JB---SOCKET1

I am assuming I must do this: RING-MAIN---30A-JB--SOCKET1---SOCKET2

I am assuming I cannot do this:
RING-MAIN---30A-JB--->
-->SOCKET1
-->SOCKET2
|
(The diagram maybe more confusing than the words. I can't figure out how to get decent formatting for this second option without attaching an image.)

Kind wishes - Patrick
 

Gavin John Hyde

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You need to put a fused connection unit at that junction box before the socket in the outbuilding. You can then have a second socket but will of course be limited by the 13 amp fuse in the fused connection unit.
Make sure you got rcd protection. If you haven't then swap the junction box for a small metal enclosure and put an rcd in it.
 

James

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Mentor
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Unfortunately, you can’t do either of them.
If you want to add a radial circuit to a ring, it can only have 1 socket on it unless it is fused down using an fcu or similar.
 
  • Thread Starter Thread Starter
  • #4
You need to put a fused connection unit at that junction box before the socket in the outbuilding. You can then have a second socket but will of course be limited by the 13 amp fuse in the fused connection unit.
Make sure you got rcd protection. If you haven't then swap the junction box for a small metal enclosure and put an rcd in it.
Thank you so much! That has saved me a boat-load of work, not to mention double the wiring (bad for the planet and generally bad anyway). That solution hadn't occurred to me.

The circuit is already RCD protected, so I'm fine there.

Kind wishes - Patrick
 
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