Dapo,
That's a darn good point!.
Quite frequently I have asked that the trench be re-excavated to Regulation depth
(700mm) and Signal Strip installed at half depth.
Half the time you get told that they know the cable is there, so why do I need a Signal strip?
I've walked off jobs before because of poor installation of U/G cables, telling the person to find some other mug......
But, Dapo, you are darn right though!, in these days of self-certification, it's literally, on YOUR head if something goes wrong with the installed equipment.
But try and tell a farmer that!!. [Linked Image]