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henley blocks

  • 13-01-2021 1:46am
    #1
    newuser555555
    Registered Users, Registered Users 2 Posts: 19 ✭


    Are henley blocks used in ireland? for example when splitting meter tails to add a second consumer unit


Comments

  • #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Sometimes.


  • #3
    newuser555555
    Registered Users, Registered Users 2 Posts: 19 ✭newuser555555


    2011 wrote: »
    Sometimes.

    so would a more preferable option be to take power from the main board to a sub board via a mcb? and if so would this work well for adding a second board for an ev charger?


  • #4
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    newuser555555 wrote: »
    so would a more preferable option be to take power from the main board to a sub board via a mcb?

    Yes, that would be much better. This reduces the risk of one fault taking both boards out.

    and if so would this work well for adding a second board for an ev charger?

    That would be an option, yes.


  • #5
    newuser555555
    Registered Users, Registered Users 2 Posts: 19 ✭newuser555555


    2011 wrote: »
    Yes, that would be much better. This reduces the risk of one fault taking both boards out.




    That would be an option, yes.


    very interesting, is there a more preferable option?


  • #6
    Newuser2
    Closed Accounts Posts: 107 ✭✭Newuser2


    If you're splitting meter tails you need a MOPD fitted before the tails

    The MOPD will have terminations to connect the tails and branch off to the car charger

    So there should be no need there

    Splitting tails and henley blocks is more of a UK thing


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  • #7
    newuser555555
    Registered Users, Registered Users 2 Posts: 19 ✭newuser555555


    Newuser2 wrote: »
    If you're splitting meter tails you need a MOPD fitted before the tails

    The MOPD will have terminations to connect the tails and branch off to the car charger

    So there should be no need there

    Splitting tails and henley blocks is more of a UK thing


    MOPD?


  • #8
    Newuser2
    Closed Accounts Posts: 107 ✭✭Newuser2


    newuser555555 wrote: »
    MOPD?

    Main overcurrent protective device


  • #9
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    newuser555555 wrote: »
    very interesting, is there a more preferable option?

    I think the best option is:
    ESB meter to main distribution board.
    Main distribution board feeds sub distribution boards.


  • #10
    Newuser2
    Closed Accounts Posts: 107 ✭✭Newuser2


    Back of an envelope thinking re: Car charging at meter cabinet location

    Pros :Cost + convenience

    Cons : Main Isolation at main distribution board

    Consumers equipment at supply cabinet


  • #11
    liveandnetural
    Registered Users, Registered Users 2 Posts: 270 ✭✭liveandnetural


    worth a read below page 6
    but there are changes a coming where you can fit a (special)board to supply a ev charge point ONLY if there is no direct access into the "main board" the nsai esb networks and seai have a preliminary agreement on the principal of this but the nsai haven't found the language to regulate it
    currently you can only things you can have in the outdoor meter cabinet are the esb meter/fuse and your main fuse unit ...............nothing else especially Henley blocks (northern contractors fall foul of this quite commonly when working in the south)

    EV CHARGER only no electric gates heat pumps fountains ;)

    https://safeelectric.ie/contractors/wp-content/uploads/sites/2/2019/07/July-2019-Newsletter-Final.pdf


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