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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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    I must admit I hadn't thought of frost, my main concern was not digging down to the sewer pipe.

    Mike

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    I must admit I hadn't thought of frost, my main concern was not digging down to the sewer pipe.

    Mike

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