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Advice on trench depth for SWA - Answered!

MikeD

I'm planning to build a timber garden room for use as an amateur radio shack. It will have a TT mains supply from the house consumer unit. I can't attach the SWA to a fence as the boundary belongs to the neighbour so it will have to go underground.

The trench will be about 5 metres long under a gravel walkway and will cross a sewer pipe that is 600mm below the surface with an inspection cover nearby. How deep does the trench need to be?

Mike

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  • Former Community Member
    0 Former Community Member

    522.8.10 in effect requires buried cable that is not in a duct of adequate protection to be at a sufficient depth to avoid being damaged by any reasonably foreseeable disturbance of the ground and the location marked by suitable marker tape.

    Wrapping the marker tape round on on top of the cable isn't good!

    Answers that might be suggested will probably be 450 mm, 600 mm or 1000 mm.

    Regards

    BOD

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  • Former Community Member
    0 Former Community Member

    522.8.10 in effect requires buried cable that is not in a duct of adequate protection to be at a sufficient depth to avoid being damaged by any reasonably foreseeable disturbance of the ground and the location marked by suitable marker tape.

    Wrapping the marker tape round on on top of the cable isn't good!

    Answers that might be suggested will probably be 450 mm, 600 mm or 1000 mm.

    Regards

    BOD

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