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3phase questions for a shed

  • 21-01-2011 11:19PM
    #1
    persie11
    Registered Users, Registered Users 2 Posts: 97 ✭✭


    Hi,

    I have a shed that has 3phase power going directly to 1 socket for a machine I have. I would like to add 2 more sockets. 1 is 16A, the other 32A, should I put in a consumer unit and run separate lines and what cable to use?

    Also, if I wanted to put in a few 220v sockets, coming from a transformer, what cable should I use?

    Thanks.


Comments

  • #2
    Stoner
    Registered Users, Registered Users 2 Posts: 10,952 ✭✭✭✭Stoner


    what cable feeds the shed already ?


  • #3
    sparcocars
    Registered Users, Registered Users 2 Posts: 148 ✭✭sparcocars


    persie11 wrote: »
    Also, if I wanted to put in a few 220v sockets, coming from a transformer, what cable should I use?

    You don't need to use a transformer. If that 3 phase socket has a neutral at it (which it might not if its a 3 phase motor its powering) then you will get your 230v if you take a spur off 1 of the phases and the neutral.
    But like stoner said what size is the cable going to the shed?


  • #4
    persie11
    Registered Users, Registered Users 2 Posts: 97 ✭✭persie11


    Stoner wrote: »
    what cable feeds the shed already ?

    It's a 5 core SWA, maybe 10sq, possibly bigger


  • #5
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    I dont think its good practice to be looping or spuring off a 3 phase circuit. An MCB board should be fed from that 3 phase cable and bring your circuits out from that. A sparks should be doing that for you.


  • #6
    sparcocars
    Registered Users, Registered Users 2 Posts: 148 ✭✭sparcocars


    robbie7730 wrote: »
    I dont think its good practice to be looping or spuring off a 3 phase circuit. An MCB board should be fed from that 3 phase cable and bring your circuits out from that. A sparks should be doing that for you.

    Agreed. That would be much better.


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