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Anyone have experience using a TDR to locate an underground fault for high voltage ?
There's a PUD in central Washing that can't appear to fix an outage for the past three weeks or so.

It's affecting several comm sites and one ski area. It's high up around 7,000 ASL with 20-foot drifts. ?The road is derivable around the first or second week of July each season.?

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I'm not sure if it's incompetence or lack of training but the concept seems simple enough to me; send a pulse down the line and watch for the return indicating something is wrong.?

There are several of these units on the market, on line.?

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I also suspect it's not an exact science and requires lots of experience to be effective.?

If I were in the area I suppose I could hook up the (dead) line to a spark plug circuit (from an engine or whatever) and walk the mile line listening for anomalies with an AM radio.?

For now, one leasee is dragging large amounts of propane to keep one site alive.?