I would say it's coincidental that you car happens to quit under the power line. Are you saying that it only quits under that particular power line and isn't affected by the hundreds of other power lines you drive under? And it never, ever stalls out elsewhere? Do you have to tow it out from underneath the power line to get it restarted?
My wife was complaining that her Trailblazer was stalling every time she made a sharp turn. "Ridiculous", I said. When it quit on our daughter-in-law. it dawned on me what was happening. After switching the transfer case out of four wheel drive, the problem disappeared.
Look for a more reasonable explanation.