The Ultimate PME/TNS Exportation! B-)

Discussion in 'Electricians' Talk' started by sinewave, Mar 25, 2007.

  1. DandMElectrical

    DandMElectrical New Member

    Thats only if you adopt a TT system in the outbuilding JP.

    It doesn't say you have to do so. Stop confusing the issue.

    There is nothing wrong with a PME export as CLEARLY shown by the IET wiring matters magazine. Its in black and white yet you still refuse to believe it. Why ?
     
  2. DandMElectrical

    DandMElectrical New Member

    Of the half dozen wiring matters magazine PDFs i have read through this morning the majority of bonding and equipotential issues i have seen mentioned have been due to earth fault potential between exposed conductive parts and non-bonded extraneous conductive parts, not due to a differing potential to true earth.
     
  3. JP.

    JP. Screwfix Select

  4. X

    X New Member

    The RCD that supplies the outbuilding.

    Errrr... this thread is debating (en mass) the suitation as outlined by the original poster (the great sinewave)

    No rcd was specified ...

    I do like it when we come full circle and the IET are on my side of the argument.

    The full circle was due to your incorrect altering of the argument.. As the IET can read... I would doubt very much that the IEE would want to side with your assumption.
     
  5. DandMElectrical

    DandMElectrical New Member

    Okay, he needs an RCD on the supply.
     
  6. X

    X New Member

    I will let you have the honour of telling sinewave exactly where on the 'supply' would be the best place to stick it ?

     
  7. DandMElectrical

    DandMElectrical New Member

    On the supply supply ?!?
     
  8. DandMElectrical

    DandMElectrical New Member

    On a more sensible note, i would probably put it on an RCD protected way in the main DB.

    You could put a split load DB in the garage or an RCBO but its a bit expensive and pointless really.

    If it trips it will take out all the power in the house but is that really important....suppose, maybe.

    Not really in the mood to care.

    You could just put in a socket in the garage with an integral RCD tbh.
     
  9. X

    X New Member

    but is that really important....suppose, maybe.

    Well... within the zone as per the dno supply (I couldn't give a rats fuzzy about)
     
  10. Clark Kent

    Clark Kent New Member

    So nobody knows then..


    (for sure)


    :O



    Your not wrong Kev..



    :)
     
  11. Clark Kent

    Clark Kent New Member

  12. Lokkars Daisy

    Lokkars Daisy New Member

    How many times since god was young has N failed then,
    not many i reckon.

    There seem to be a lot of holes in this PME export is
    dangerous theory ......

    Oh no, we lost the neutral, well...did it just walk
    away, was it abducted or did something else
    catastrophic happen ?

    Unless you get a phase/earth fault your lost neutral
    isn't going to cause any problems.
    If you do get a
    phase earth fault your rcd will operate. So where is
    the danger......


    Dandy the lost Neutral is in the context of PNE and if the neutral is lost ,then a phase to earth fault is not required to cause a problemb ,any item of electrical equipment connected at the time will cause all earthed parts to become live 230V
     
  13. X

    X New Member

    will cause all earthed parts to become live 230V

    And heres the pisser.... (for our friends who aint got a piece of paper and a pencil)

    The rcd if fitted.... dont help, tripped or not tripped
     
  14. Clark Kent

    Clark Kent New Member

  15. X

    X New Member

    Unless of course the total installation is on a single rcd.. but we dont want to do it like that.... do we
     
  16. Clark Kent

    Clark Kent New Member

  17. 2 wheeled ant

    2 wheeled ant New Member

    About time this post DIED DIED DIED



    Ant
     
  18. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Unless of course the total installation is on a
    single rcd.. but we dont want to do it like that....
    do we



    And if so, the rcd would have tripped on the loss of neutral, wouldn't it ?


    Mr. HandyAndy - really
     
  19. Lokkars Daisy

    Lokkars Daisy New Member

    Yes X but what is the problem! as I asked way back in posts, my house has a PME supply all the dreaded scenarios are just as likley to happen to me at home as they are in a building supplied from my house 50 meters away .
    I can not see a difference >?
    And I don't even have Sinedoll's earth rod outside my house :( Doomed
     
  20. Clark Kent

    Clark Kent New Member

    Unless of course the total installation is on a
    single rcd.. but we dont want to do it like
    that....
    do we



    And if so, the rcd would have tripped on the loss of
    neutral, wouldn't it ?


    Mr. HandyAndy - really



    As long as there is a current flowing between live and earth..
     

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