4 ms·
That's an incredible story! It's amazing what you can discover when you start back-tracing issues like this. A few months ago, my house started having intermit
by arnon 6y ago
That's an incredible story!
It's amazing what you can discover when you start back-tracing issues like this.
A few months ago, my house started having intermittent failures.
It turns out that some road works caused one of the phases in my house to leak into the other phase, which caused a whole array of problems, but only in specific areas of the house.
We discovered this by piping 40kV into the wiring and listening to crackling in the ground, where we found the faulty cabling.
- hyperdimension 6y agoI'm very intrigued--can I get any more details about how you could safely do that? Did you, e.g. disconnect the main breaker and have a spare Van de Graaff generator lying around?
- arnon 6y agoI obviously had help :) I had an electrician come and perform this step. The house was disconnected from the source, and then a "thumper" was used: https://megger.com/portable-fault-location-system-stx40- https://megger.com/portable-fault-location-system-stx40- 2000
- rosswilson 6y agoIt's called Insulation Resistance Testing and an electrician would typically use a device like a Megger tester. Here's a good video about it: https://www.youtube.com/watch?v=CsXUuuV4_sw https://www.youtube.com/watch?v=CsXUuuV4_sw
- hyperdimension 6y agoOh, of course. I was not thinking right. I was imagining a 'chunky' HV supply rather than a hi-pot tester, like some Stanford Research PSU, but those only went up to a few kV if I'm remembering correctly. Thanks.