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Putting more electrical sockets in a room?

Discussion in 'Electrics UK' started by EdWard01, 23 Sep 2020.

  1. EdWard01

    EdWard01

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    Morning all,

    Last year we bought a house (1980ish) and one bedroom only had one plug socket in it. From that another plug socket was already in place.

    We had the fuse box changed for new and a certificate issued by a local electrician we knew. He also ran two more double sockets off the 2nd plug mentioned above.

    I've just built a corner desk for my son and have trunked for the adding of four more double sockets, which the electrician says is absolutely fine. I've since been told that you cannot daisy chain sockets. Is that what I'm having done? If so, what are the risks and how should it be done so its safe? Electrician is NICEIC registered and was able to issue a safety certificate last year so I'm just sense checking what work is being completed.

    For info, the new sockets will carry...

    One PC
    Two monitors
    One printer
    One lamp
    One set of led strip lights (possibly)

    Son is at school most of the day so they'll rarely be switched on but I'm guessing that's not the point.

    Thanks in advance.
     
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  3. sircerebus666

    sircerebus666

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    Depends, are you extending a radial circuit or spurring off a ring?

    What's the size of the MCB feeding the bedroom socket?
     
  4. EdWard01

    EdWard01

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    Thanks for the reply. Unfortunately none of that means anything to me lol. I can look at the fuse box if that's what you mean?
     
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  5. davelx

    davelx

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    Then, before you start, you might want to do some reading:

    https://www.diynot.com/wiki/Electrics:Socket-Circuits

    after which you'll have a much better idea of how to safely achieve what you want.
     
  6. davelx

    davelx

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    Oh, and don't use junction boxes if you can possibly avoid it. If you have to use them, then either they have to remain accessible (eg. not under the floorboards etc.) so that the terminals can be checked for tightness periodically, or they have to be of a type designated as being "maintenance free". Better to do all the connections at the sockets themselves.
     
  7. jonbey

    jonbey

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    I've had so many in my bungalow. Luckily, in each case I could replace the junction box with a new socket on the wall. But I only discovered them because I was insulating under the floor. Also had several in the loft hidden under insulation.
     
  8. ericmark

    ericmark

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    2.5 mm² cable is rated around 20 to 25 amps, and the ring final system uses two cables both 2.5 mm² on a 32 amp supply, so relies on having 2 cables. There is another system that uses 4 mm² called a radial also with a 32 amp supply, and also a system using 2.5 mm² with a 20 or 25 amp supply.

    The systems using a 32 amp supply can have one socket on a 2.5 mm² cable as the plugs have fuses in, but not two sockets as it would be too easy to make an error and overload the cable, when a fused connection unit is used, then that prevents overload, so then as many sockets as you like.
     
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