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Round pin plugs - just curious

Discussion in 'Electrics UK' started by clifford1, 29 Feb 2012.

  1. clifford1

    clifford1

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    I have always had a love for the old round-pin set up, especially the large ceramic 15 amp sockets, and the associated bizarre system of sizes, adaptors, quirky wooden plugs, etc. In fact I have an old cottage annexe entirely equipped with these in working order.

    I thought they were long obsolete, but recently I have noticed advertisements by mainstream suppliers selling modern 3-pin plugs and sockets in the 2 amp and 5 amp sizes, and even the 15 amp. screwfix for example sell modern white 5 amp plugs and sockets.
    What are they for? Why is Britain apparently moving back to a standard we dropped 40 years ago?

    I am also aware that round pin continue in use in some parts of the world. Malaya, India and South Africa for example use a mixture of types, including our old 15 amp.
    A curiosity I recently found in a charity shop is a modern flat-pin 13 amp socket with two additional 2 amp round pin outlets attached. It is not square, but slightly rectangular, and needs I believe a European "503" pattress box.

    Can anyone explain what is happening, and give some background ?

    Many thanks
     
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  3. holmslaw

    holmslaw

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  4. crystal ball

    crystal ball

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    15amp round pins are common in theatre lighting rigs
     
  5. dhutch

    dhutch

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    Although increasingly being replaced by 16amp amp 'ceeform' plugs/sockets.

    Obviously there is a requirment to have unfused (but otherwise protected) plugs and sockets in said application.


    Daniel
     
  6. ban-all-sheds

    ban-all-sheds

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    If the 2/5/15A sockets are not shuttered they don't comply with the regulations for use in housholds.
     
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  8. AndyPRK

    AndyPRK

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    When controlled by a light switch on the wall.
     
  9. mfarrow

    mfarrow

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    A friend of mine found these in a flat he bought in 2009. It hadn't been rewired since it was built in the 1950s/1960s.

    They allow lamps with 5A leads to be plugged into the same point as a 'modern' 13A socket. They were MK I believe.
     
  10. clifford1

    clifford1

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    Thanks everyone. It's nice to see they are still around.

    Next question will be the old large 2-pin 10 amp plugs, and a wooden 3-pin plug I found that had extra large pins with slightly wider spacing than the normal 15 amp version. I've never found a socket it would fit !
     
  11. plugwash

    plugwash

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    Newly manufactured 5A and 15A sockets have been shuttered for years, IIRC 2A sockets got shuttering later (presumablly because it was difficult to make shutters that small).
     
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