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SWA cable sizes.

Discussion in 'Electrics UK' started by trialscot, 1 Sep 2013.

  1. trialscot

    trialscot

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    Hello again,
    What do the figures 6mm, 10mm etc refer to when sizing SWA cables?.
    The mains cable going into the house measures about 12mm in diameter, 2 core, what rating would that likely be?.
    And what OD would a "10mm" rated cable be?.?
    Thinking about get a power supply put into the garage and wondering if a suitable cable would go through the existing duct in the house wall.
    Cheers.
     
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  3. trialscot

    trialscot

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    I did search before posting but didn't find the info.
    Found it now though in the little lists below some old posts. :)
     
  4. EFLImpudence

    EFLImpudence

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    It's actually 6mm² etc. so refers to the cross-sectional-area of the conductors.
     
  5. Spark123

    Spark123

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  7. riveralt

    riveralt

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    1.5mm ² 2 Core SWA = approx. 12.4mm
    Less than above - but I'm not sure they make 1mm ² SWA

    http://www.tlc-direct.co.uk/Products/SW1dot5slash2.html
     
  8. Spark123

    Spark123

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    A 10mm² 2 core is roughly 18mm OD and 3 core 19.5mm OD
     
  9. Lectrician

    Lectrician

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    I wouldn't be bothered with intense researching.

    If you want the job done, the correct size (CSA) cable needs installing. If this means the existing duct in the wall is too small, a new hole will need to be made. You say duct - Is there a duct between the buildings, or is this just a duct through a wall?
     
  10. JohnW2

    JohnW2

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    I thought he was refer to the DNO supply to the house, which almost certainly would not be SWA, and certainly would not be 1.5mm².
    Is he not asking about the OD of 10mm² SWA?

    Kind Regards, John
     
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