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Discuss SWA to Garden Outbuilding in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. Giuliano Besenzi
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    Giuliano Besenzi EF Member

    Location:
    London
    Gents

    I need to run 10mm SWA to building at the end of the garden, the electrician suggests clipping it direct to the fence concrete post which are solid enough and says is permissable as digging a trench is not an option. I am concerned about the UV issue, the support element as the posts are 6ft apart.

    I have asked him could it be run in galvanised conduit as this would solve the UV and support problem but he says that he has never done this and is a waste of time.

    Could I ask you guys for your opininion on this.
    Thanks
     
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  2. Pete999
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    Pete999 Forum Mentor

    Location:
    Northampton
    Business Name:
    None
    Get A spark in to to do it for you Mate
     
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  3. telectrix
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    telectrix Scouser and Proud of It Respected Member

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    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    you could fix some treated 3" x 1" timber to the posts, then cleat the SWA to that.UV should not pose a problem ( if in direct sun, might discolour after a few years).
     
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  4. Judd
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    Judd Regular EF Member

    Location:
    Liverpool
    Your electrician has never installed galv conduit?
     
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  5. Giuliano Besenzi
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    Giuliano Besenzi EF Member

    Location:
    London
    No, he's not ever been asked to run SWA in conduit abd says there is no need.
     
  6. Giuliano Besenzi
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    Giuliano Besenzi EF Member

    Location:
    London
    I've got one its just the issue of can it be run in conduit or is this overkill. The sparks just wants to clip the SWA to the fence post.
     
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  7. westward10
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    westward10 In echoed steps I walk across an empty dream. Staff Member Moderator

    Location:
    Northamptonshire
    Assuming the cable is 3 core the horizontal fixings should not exceed 400mm apart. Find another electrician.
     
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  8. Giuliano Besenzi
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    Giuliano Besenzi EF Member

    Location:
    London
    The swa could be fixed direct to the post without the timber, just might need a few more masonary bits.
     
  9. telectrix
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    telectrix Scouser and Proud of It Respected Member

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    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    well he's wrong then. BS 7671 recommends a spacing of cable fixings and it's far less than 6 ft...... for 10mm SWA, I'd be spacing the cleats at somewhere about 18"or less.
     
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  10. westward10
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    westward10 In echoed steps I walk across an empty dream. Staff Member Moderator

    Location:
    Northamptonshire
  11. telectrix
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    telectrix Scouser and Proud of It Respected Member

    Top Poster Of Month

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    too saggy.
     
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  12. Giuliano Besenzi
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    Giuliano Besenzi EF Member

    Location:
    London
    Yes its 3 core, I was hoping running conduit between post which are solid and concreted into the ground would solve the problem of 400 mm spacing of horizontal fixing, in conduit the cable would be supported along its entire length.
     
  13. Judd
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    Judd Regular EF Member

    Location:
    Liverpool
    Running SWA in conduit would be bizarre.
     
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  14. westward10
    Online

    westward10 In echoed steps I walk across an empty dream. Staff Member Moderator

    Location:
    Northamptonshire
    Use some heavy gauge cable tray.
     
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  15. westward10
    Online

    westward10 In echoed steps I walk across an empty dream. Staff Member Moderator

    Location:
    Northamptonshire
    Less than 18 hinches :D
     
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