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adding a sub consumer unit

  • 24-08-2020 04:19PM
    #1
    Registered Users, Registered Users 2 Posts: 4


    will be having an electrican in adding a few new sockets and the old consumer unit is a single row unit and is full whats involved in adding a second unit/sub board?


Comments

  • Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,717 Mod ✭✭✭✭2011


    will be having an electrican in adding a few new sockets and the old consumer unit is a single row unit and is full whats involved in adding a second unit/sub board?

    Normally:
    - A main distribution board would supply 1 or more sub-distribution boards.
    - A single 3 core cable from the main board would supply a sub distribution board.
    - The sub-distribution board would have it's own main isolation switch.
    - Final circuits are fed from the sub-distribution board.
    - The sub-distribution board may be located close to the loads / circuits it is supplying.

    In a domestic installation I would generally prefer to extend / or replace the existing board to meet the new requirements as this tends to be neater. Always allow 20% or more for future requirements.


  • Registered Users, Registered Users 2 Posts: 4 macromacaroon


    2011 wrote: »
    Normally:
    - A main distribution board would supply 1 or more sub-distribution boards.
    - A single 3 core cable from the main board would supply a sub distribution board.
    - The sub-distribution board would have it's own main isolation switch.
    - Final circuits are fed from the sub-distribution board.
    - The sub-distribution board may be located close to the loads / circuits it is supplying.

    In a domestic installation I would generally prefer to extend / or replace the existing board to meet the new requirements as this tends to be neater. Always allow 20% or more for future requirements.

    thanks for the reply, im in an at risk category so i just want the electrician in and out, so a more simple and straight forward job would suit me and from what way the electrician descibed the existing unit being upgraded and the work involved, i wasn't really instrested in the amount of time and labor involved


  • Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,717 Mod ✭✭✭✭2011


    Fair enough. Best of luck with it.


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