In message , Mike Tomlinson
writes

Yes, I realised that later. One solution might be to feed the rectified
signal down the armour, with the remote end well isolated of course.
Dodgy though.

En el artículo , Brian Gaff
escribió:

Not sure that is going to work. Most of this sort of cable tends to be
screened by the armour which is earthed.

Presumably the armouring will have been connected to whatever junction
box was used at the original load end by the securing gland.

If such a junction box were metal, it should give a good earth
connection..... I think you need some current flowing at 50HZ to
energize a cable finder.


--
Tim Lamb