IR testing

[davesparks]

In the good old days before CT testers, to find a fault on a buried cable was the old wheatstone bridge..............but that took a little bit of time and quite a bit of savvy.......................

The other way as told by the "older hands" remove fuse from carrier............replace with a hmmm suitable medium and isolate before refitting carrier.................turn on and the fault becomes evident with displaced earth..............seen it done once but never had a pair larger enough to try it myslef

Tony has a wonderful anecdote of the time he felled a tree using that fault finding method.

 

[Pete999]

Tony has a wonderful anecdote of the time he felled a tree using that fault finding method.

Seen it done with DC injection something along the line you have described but not as iffy lol