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Wiring up RCD/RCCB?

Discussion in 'Electrics UK' started by andyr123, 7 Mar 2017.

  1. andyr123

    andyr123

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    Hello - just want to double check I am wiring this RCD/RCCB correctly only its only got 'N' stamped on the left hand side. - it is feed/supply from top and Load from bottom isnt it?
    Thanks.

    RCCB.jpg





    [​IMG]

    [​IMG]
     
    Last edited: 7 Mar 2017
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  3. EFLImpudence

    EFLImpudence

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    You are.

    Usually it is - because of the arrangement of a consumer unit -

    but it doesn't matter which way it is wired.
     
  4. ban-all-sheds

    ban-all-sheds

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    Where is it going, and for what use, if not in a CU?
     
  5. andyr123

    andyr123

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    if it doesnt matter which way its wired - could it be wired this way? RCCB2.jpg :
     
  6. EFLImpudence

    EFLImpudence

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    I would not ignore the N marking if a manufacturer has bothered to show it.
     
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  7. andyr123

    andyr123

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    It would have to be wired up like this then: RCD3.jpg wire
     
    Last edited: 8 Mar 2017
  8. EFLImpudence

    EFLImpudence

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    Couple of points:

    "Supply" is usually the term for your 'feed'.
    The "Load" N (that you have called supply) goes to the Neutral bar.

    The copper busbar will be fitted into the Load L of the RCD.


    Have you graduated from interest to something more ambitious?
     
  9. ericmark

    ericmark

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    I would also say we really have no idea what is actually inside a RCD, these [​IMG] have some very cleaver circuits, OK can't be used on domestic, but although we know the principal we don't know what is really inside. The spark arrestors could mean with DC models link here to types it may matter which way round, and with functional earths as used with many RCBO's it will also matter, plus some RCBO's are duel pole sensing on the RCD, part but not on the MCB part.

    However with the one you show it is unlikely to be a problem, as long as you test with a RCD tester after installed it should be OK. However where the problem lies is some one latter could well read the N and end up connecting something at a latter date wrong way around.

    I have connected line 2 to the pin marked N on 100's of yellow 16A plugs and sockets, I am sure everyone does the same, in the UK it is rare to have a 110 volt supply with a neutral, so can't say you should never connect a line to neutral terminal, but I would try ones best not to.

    I have not got amendment 3 where I am told there is a change to rules about following manufacturers instructions, but until that was released, to maintain the type testing of a consumer unit in the main your not permitted to mix and match, so you can only use an ESR RCD in an ESR consumer unit, so I googled ESR RCD and found this picture[​IMG] OK not metal so can't use them in most places, but the position shown for the RCD you will note is to the left of the MCB's which would put the N on the correct side.
     
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  11. Risteard

    Risteard

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    IMPORTANT NOTE:

    The OP is in Sligo. IT IS ILLEGAL FOR ANYONE OTHER THAN A REGISTERED ELECTRICAL CONTRACTOR (REC) TO DO THIS WORK. YOU MUST NOT WIRE THIS YOURSELF AS YOU WILL BE BREAKING THE LAW BY DOING SO AND ARE LIABLE TO PROSECUTION.

    Visit www.reci.ie to find an REC in your area.
     
  12. Risteard

    Risteard

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    You must not attempt this. This comes within the definition of Restricted Electrical Works from the Commission for Energy Regulation (CER).
     
  13. andyr123

    andyr123

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    ok then i will get an electrician to do it then , a bit strong wording there! - in any case i thought it was law that if you get someone in to do electrical work the electrician must be registered to do the work by law .. but as I say when it comes to it i will get a registered electrician to carry it out. At least its quelled my curiosity to how its wired up correctly thanks ...
     
  14. Risteard

    Risteard

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    It's not strongly worded - it is simply a statement of fact.

    Certainly if you get someone in to do the work they must be an REC, however there is NO LEGAL EXEMPTION FOR DIY. In other words, if you are not an REC then you may not do this even if it is in your own home.

    As a member of RECI and an REC I am regularly inspected, must be insured and have Wiring Rules, test equipment etc. and certain other things - also I need to have a valid QC (Qualified Certifier) Number.
     
  15. ban-all-sheds

    ban-all-sheds

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    How many people have been prosecuted so far?
     
  16. Risteard

    Risteard

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  17. ban-all-sheds

    ban-all-sheds

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    How do you know?

    He uses the same flag as you, and you live in the United Kingdom of Great Britain and Northern Ireland.
     
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