I've been following the thread. If I'm dumb enough to back feed through the transformer into the downstream side of the downed line, how is it going to be a problem if linemen are grounding the phases on *both sides* of the work area. That's what Ben seemed to be implying. -A On Mon, Aug 30, 2021 at 9:09 AM Mel Beckman <mel@beckman.org> wrote:
Aaron,
If you read back in this thread (using the NANOG mailing list archive), you’ll find this has been explained in great detail. In a nutshell, phase grounding won’t help if a generator is energized from the customer end, and this technique was discontinued in the 1970s due to the many deaths that resulted.
-mel
On Aug 30, 2021, at 9:02 AM, Aaron C. de Bruyn via NANOG <nanog@nanog.org> wrote:
On Mon, Aug 30, 2021 at 7:35 AM Lady Benjamin Cannon of Glencoe, ASCE < lb@6by7.net> wrote:
Yes, this is a real and dangerous problem. Today. Even with grounding I’m afraid. Source: I’ve been working in an engineering capacity for 27 years and I have the license you’d need to build a nuclear power plant.
Would you care to educate me on this? If you ground the phases on both sides of the work-site, how are you going to end up being a better path to ground?
-A