Economy 7 consumer unit

Discussion in 'Electricians' Talk' started by Jay99, Jul 13, 2019.

  1. Jay99

    Jay99 New Member

    just after opinions, what’s the best way to upgrade board in flat with economy 7, currently the is two boards, one for the economy 7 and one for everything else.
     
  2. Hfs

    Hfs Member

    Fit a dual tariff board and RCBOs
     
    dobbie likes this.
  3. Jay99

    Jay99 New Member

    Why would u use RCBOs
     
  4. dobbie

    dobbie Well-Known Member

    It is a far superior and better job than using a dual rcd board.
    If a fault should occur with a rcbo board, only the faulty circuit will be lost not half the consumer unit.
     
  5. Jay99

    Jay99 New Member

    Why would u use RCBOs with a dual tariff board, is it the same answer or is there a more specific reason.
     
  6. ajohn

    ajohn Active Member

    Say you have a problem in a power circuit. If lights were on rcbo's they would remain on. The rcbo's mean that only the faulty circuit turns itself off. Only problem is they cost more. It's possible to have any mix you want. Eg an rcd on heating, rcbo on the rest of the power or an rcd for that and then rcbo's for lights. ;) It makes a lot of sense putting lights on them.
    John
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  7. dobbie

    dobbie Well-Known Member

    Are the y and o keys not working on your keyboard?

    The reason YOU would use all rcbo's is that each circuit is individually rcd protected, and not groups of circuits rcd protected.
    Should there be a fault YOU would only lose the faulty circuit and not a group of circuits.
     
  8. Comlec

    Comlec Well-Known Member

    Using a dual tariff board with MCBs on the off peak side and RCBOs on the peak side would give a lot of the advantages at a reduced cost.
     
  9. Hfs

    Hfs Member

    Because a standard dual tariff board has two main switches so to provide RCD protection, if required, the obvious choice would be to use RCBO’s.....Plus the reasons pointed out above. Your opening post asks a question which states the “best way” the best way would be individual RCD protection over having all or some of the circuits protected by just 1 or two RCD’s.
     
  10. ajohn

    ajohn Active Member

    What happens with dual tariff cu if the economy is on a different phase to the rest? Just curious as I think some have been done like that.

    John
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