Sadly I won't be able to DIY this myself. I want to run a power supply
to a hot tub (32A) using SWA. does it have to be buried in the ground or
is it safe to leave lying on the surface, say, with extra protection
such as a steel pipe. The cable/pipe would be running around the
perimeter of the garden and be out of site due to plants etc.

Rob wrote:
Sadly I won't be able to DIY this myself. I want to run a power supply
to a hot tub (32A) using SWA. does it have to be buried in the ground
or is it safe to leave lying on the surface, say, with extra
protection such as a steel pipe. The cable/pipe would be running
around the perimeter of the garden and be out of site due to plants
etc.


Surface laid/mounted SWA is usually OK.

But you do need to consider if the cable could be damaged by garden tools if
hidden by plants etc. (I do realise that there is a difference between
hidden and out of sight).

I believe this one is down to your own risk assesment.

--
Adam