Posted by Lumbersawyer on November 09, 2019 at 09:15:50 from (104.219.198.107):
In Reply to: Overhead Powerlines posted by stroby on November 09, 2019 at 04:51:42:
The power plant I retired from this Nov has high voltage lines going out from it. The small units were 115kv and the large units were 250kv. We were always told 10 feet minumun on the 115kv lines. They were moving some top soil around one year where they were doing some construction. One of the contractor dump trucks left his box up and came to near the 115kv line, the line is quite high, probably 30 plus feet, the line arc jumped to the tandum dump truck and blew all ten tires and did a lot of damage to the trucks electrical system. The driver jumped clear and was un-hurt. It tripped the generating unit off line. When I was in operations we had to do some switching in the tranformer yard at times. big knife switch and a fibre glass pole, heavy rubber gloves and ppe suit. the arc that fallowed the knife till it gets a distance away will make the hair on your coved head stand up. :shock: Electrical power lines are not to be taken for granted and should be treated with caution.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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