Difference between single-pole and double-pole socket

Discussion in 'UK DIY' started by Alec, Feb 19, 2004.

  1. Alec

    Alec Guest

    What are the differences between them? How can I tell the difference by
    looking at them? For normal domestic installation. can I use either
    (single-pole being cheaper)?
    TIA
    Alec, Feb 19, 2004
    #1
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  2. Alec

    Lurch Guest

    On Thu, 19 Feb 2004 18:51:00 -0000, "Alec"
    <> wrote:

    >What are the differences between them? How can I tell the difference by
    >looking at them? For normal domestic installation. can I use either
    >(single-pole being cheaper)?
    >TIA

    Poles referring to switching of live only or live and neutral.
    Look for the words 'double pole' on the socket.
    I would recommend using double pole, although single pole will be
    fine.
    ...

    SJW
    A.C.S. Ltd.
    Lurch, Feb 19, 2004
    #2
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  3. Alec

    G&M Guest

    "Lurch" <> wrote in message
    news:...
    > On Thu, 19 Feb 2004 18:51:00 -0000, "Alec"
    > <> wrote:
    >
    > >What are the differences between them? How can I tell the difference by
    > >looking at them? For normal domestic installation. can I use either
    > >(single-pole being cheaper)?
    > >TIA

    > Poles referring to switching of live only or live and neutral.
    > Look for the words 'double pole' on the socket.
    > I would recommend using double pole, although single pole will be
    > fine.


    Double pole is compulsory for certain applications - bathroom cutoffs, hot
    water tank heaters, central heating controls (I believe - can't see why) and
    a few others.
    G&M, Feb 19, 2004
    #3
  4. Alec

    Lurch Guest

    >Double pole is compulsory for certain applications - bathroom cutoffs, hot
    >water tank heaters, central heating controls (I believe - can't see why) and
    >a few others.
    >

    Switches yes, sockets no.
    ...

    SJW
    A.C.S. Ltd.
    Lurch, Feb 19, 2004
    #4
  5. Alec

    Dave Plowman Guest

    In article <c13c1l$9qr$>,
    G&M <> wrote:
    > Double pole is compulsory for certain applications - bathroom cutoffs,
    > hot water tank heaters, central heating controls (I believe - can't see
    > why) and a few others.


    Those, surely, are hard wired so you're talking about an isolator switch.
    With something that's plugged in you isolate it by unplugging it.

    --
    *Honk if you love peace and quiet.

    Dave Plowman London SW 12
    RIP Acorn
    Dave Plowman, Feb 20, 2004
    #5
  6. Alec

    Guest

    Lurch <> wrote:
    > >Double pole is compulsory for certain applications - bathroom cutoffs, hot
    > >water tank heaters, central heating controls (I believe - can't see why) and
    > >a few others.
    > >

    > Switches yes, sockets no.


    ???? What's a single pole socket?

    --
    Chris Green
    , Feb 20, 2004
    #6
  7. Alec

    Lurch Guest

    On 20 Feb 2004 09:43:20 GMT, wrote:

    >Lurch <> wrote:
    >> >Double pole is compulsory for certain applications - bathroom cutoffs, hot
    >> >water tank heaters, central heating controls (I believe - can't see why) and
    >> >a few others.
    >> >

    >> Switches yes, sockets no.

    >
    >???? What's a single pole socket?
    >

    A socket with single pole switching.
    ...

    SJW
    A.C.S. Ltd.
    Lurch, Feb 20, 2004
    #7
  8. Alec

    BillV Guest

    Christian McArdle wrote:
    >>> Switches yes, sockets no.

    >>
    >> ???? What's a single pole socket?

    >
    > It refers to the switch built into the socket. Most sockets you buy
    > now have double pole switching that switch the neutral as well as the
    > live. They are only a few more pence, so you might as well buy them.
    > You'll increasingly find they come with two earth terminals, too.
    > When wiring these up on a ring, you should put one earth wire into
    > one terminal and the other into the other.

    Just fitted some MK Logic ones I got in TLC and I expected to see these two
    earth terminals .... but they didn't have them.
    BillV, Feb 20, 2004
    #8
  9. Alec

    Owain Guest

    "Dave Plowman" wrote
    |G&M wrote:
    | > Double pole is compulsory for certain applications - bathroom
    | > cutoffs, hot water tank heaters, central heating controls
    | > (I believe - can't see why) and a few others.
    | Those, surely, are hard wired so you're talking about an isolator
    | switch. With something that's plugged in you isolate it by
    | unplugging it.

    The objection to a SP-switched socket in these circs is that someone
    switches off at the socket without unplugging, thinks it's isolated, then
    Bang! Ouch! Yarrooo! finds it isn't.

    But I agree they should all be hardwired.

    Owain
    Owain, Feb 20, 2004
    #9
  10. Alec

    Dave Plowman Guest

    In article <>,
    Owain <> wrote:
    > The objection to a SP-switched socket in these circs is that someone
    > switches off at the socket without unplugging, thinks it's isolated, then
    > Bang! Ouch! Yarrooo! finds it isn't.


    If someone isn't capable of keeping line and neutral wired correctly,
    would you trust them not to have the earth wired through one of the two
    poles on an isolating switch? ;-)

    > But I agree they should all be hardwired.


    --
    *I wish the buck stopped here. I could use a few.

    Dave Plowman London SW 12
    RIP Acorn
    Dave Plowman, Feb 20, 2004
    #10
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