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Insulation and extending wiring for sockets

  • 16-02-2015 12:26am
    #1
    Registered Users, Registered Users 2 Posts: 204 ✭✭


    Hi Getting a couple of bedrooms insulated and will need to extend the wiring for existing sockets , to short to wire the socket when insulation installed. what is the correct connector to use for this application ??
    Thanks


Comments

  • Registered Users, Registered Users 2 Posts: 5,374 ✭✭✭aido79


    The best connector in this case would be a longer piece of wire. Junction boxes/connectors in the attic are a fire hazard. I certainly wouldn't take the risk if it was my house.


  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    aido79 wrote: »
    Junction boxes/connectors in the attic are a fire hazard.

    I have to disagree here with that, its only a connection, no different to having the connection at the db for example. What reason do you have with calling them a fire hazard?


  • Registered Users, Registered Users 2 Posts: 4,946 ✭✭✭Bigus


    Dayo93 wrote: »
    Hi Getting a couple of bedrooms insulated and will need to extend the wiring for existing sockets , to short to wire the socket when insulation installed. what is the correct connector to use for this application ??
    Thanks

    Raise/move the sockets to get more slack on the existing wiring ?


  • Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    aido79 wrote: »
    The best connector in this case would be a longer piece of wire.

    This would be inline with best practice.
    Ideally all joins on a socket circuit are either at the sockets themselves or in the distribution board.

    Remember a junction box is a potential point of failure.


  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    2011 wrote: »
    Remember a junction box is a potential point of failure.

    A good point but at that same analogy a sockets terminals would be also a potential point of failure would you agree?


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  • Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    2011 wrote: »
    This would be inline with best practice.
    Ideally all joins on a socket circuit are either at the sockets themselves or in the distribution board.

    Remember a junction box is a potential point of failure.

    It is, but I'd agree with above, no more a fire hazard than sockets themselves. No point putting in junction boxes that are not needed, but a properly installed one will be fine.

    Makeshift DIY ones, or them horrible ones with the split brass connections are where problems occur. Din rail and connectors is a proper job.

    Not needed in this case though.


  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    Bruthal wrote: »
    them horrible ones with the split brass connections are where problems occur.

    +1 here ones like these,
    BG_604.jpg


  • Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    CJ Haughey wrote: »
    +1 here ones like these,
    BG_604.jpg

    Yes always thought they are a horror job.


  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    Bruthal wrote: »
    Yes always thought they are a horror job.

    Totally agree, they were the only thing available though years ago, their initial introduction was where one can splice into a cable. I inquired years ago to a manufacturer and asked for torgue values for the screws and got no response.


  • Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    The more wires under the connections, the higher up the brass screw when tight, and the easier it was to wedge the 2 sides of the threads apart, causing the screw to jump threads.

    As in less torque would cause failure, the more/bigger wires were under the screw.


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  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    My point is they should issue a torque value to the screw, hager do so they should too.


  • Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    CJ Haughey wrote: »
    My point is they should issue a torque value to the screw, hager do so they should too.

    Yea but it would vary the higher up the screw is in the split threads. Put 2 1.5 cores in it and it will be possible to tighten more than if 2 or 3 2.5 cores are in it.

    It's easier to force the split threads apart, the higher up the screw is when getting tight.


  • Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    I suppose they could give a setting for 2 1.5 cores in it.

    But they are too Mickey mouse to really have accurate reliable settings really.


  • Banned (with Prison Access) Posts: 449 ✭✭CJ Haughey


    Bruthal wrote: »
    I suppose they could give a setting for 2 1.5 cores in it.

    But they are too Mickey mouse to really have accurate reliable settings really.

    They should give a torque value for various cable sizes, number of cables etc, I cannot comprehend they produce products and distribute without this.


  • Registered Users, Registered Users 2 Posts: 68 ✭✭Dufftronic


    CJ Haughey wrote: »
    They should give a torque value for various cable sizes, number of cables etc, I cannot comprehend they produce products and distribute without this.

    ...sure it'll be grand. :)


  • Registered Users, Registered Users 2 Posts: 225 ✭✭tippgod


    So what connectors should the original poster use?


  • Registered Users, Registered Users 2 Posts: 2,063 ✭✭✭Cerco


    tippgod wrote: »
    So what connectors should the original poster use?

    Answer at the end of post#7. And post #5
    Proper junction box or new cable from socket to consumer unit for best results.


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