Just as a note,
To get 400V on a fence you have to have the situation that the fence builder pierced a 3-phase cable in two different spots.
I've never seen the likes since.
This was direct burial, for some strange reason, he never hit the phase wires and the Neutral screening at the same time.
Fence installers never want to call anyone when they see a cable they've hit.
Couple that with builders, landscape gardeners and homeowners that just never get any cable location work done, before tearing into a job.
