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Extending mains cable

  • 14-12-2021 9:50am
    #1
    jogdish
    Registered Users, Registered Users 2 Posts: 1,485 ✭✭✭


    Hi,

    So I have a socket in a room, and I want to move it to the right by 1m, I switched off the mains and unscrewed the socket to find that there is zero slack/give in the cables - whats the safe way to extend the Live/Neutral/Earths over a meter - this is all behind some plaster board.

    My idea was those plastic connector blocks, but its mains 240v so just want to know the safe way.



Comments

  • #2
    Timfy
    Registered Users, Registered Users 2 Posts: 753 ✭✭✭Timfy


    Something like this, firmly affixed to something solid would do the trick...

    https://www.screwfix.ie/p/debox-in-line-junction-box/8692H?gclid=Cj0KCQiAnuGNBhCPARIsACbnLzpq4lKmNbpv_DsXOemG7TBEGDSiSGsf1x6pT5u845EDdBkYUWYyALMaAq_kEALw_wcB&gclsrc=aw.ds

    ae235.jpeg


    No trees were harmed in the posting of this message, however a large number of electrons were terribly inconvenienced.



  • #3
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    https://www.boards.ie/discussion/2058222763/extending-mains-cable

    It would not be normal to have 1m slack on these cables. At the risk of being pedantic mains supply is 230 V AC. Anyway, the best solution is genearlly to use the existing socket itself as a junction box and to wire a new cable from this. A number of checks will need to be acrried out to ensure that this can be done in a manner that is compliant with the Rules.

    I would not reccoemend using a junction box such as the one in the above post.



  • #4
    Timfy
    Registered Users, Registered Users 2 Posts: 753 ✭✭✭Timfy


    https://www.boards.ie/discussion/comment/118319841#Comment_118319841

    Double pedant - ESB supply can be nominally be between 207 Volts to 253 Volts AC😝

    Only messing!

    I read the post as that the original socket was going to be done away with, hence the suggestion of a slimline secure junction box with some strain relief that would fit safely inside the cavity. Why would you suggest against the junction box? It meets spec and, fitted correctly would surely be within regs. Not in any way arguing, just curious...

    No trees were harmed in the posting of this message, however a large number of electrons were terribly inconvenienced.



  • #5
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,069 ✭✭✭10-10-20


    Just to help clarify the information provided on the junction-box... to be clear to be clear.

    The original socket should be either maintained as a socket or re-deployed as a junction box with a removable plate/face. This will allow any competent person to open the box and review the wiring path from the junction-box to the new socket and understand the wiring paths.

    If the old socket is faced-off using plaster/filler or paint, then the path of the wiring could be assumed to be directly down from the ceiling to the new socket and the risk is that somebody could drill into the wall beside or above the old socket without knowing that there was wiring in situ.



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