Posted by JOB on February 25, 2013 at 08:42:05 from (50.124.208.41):
In Reply to: Ground for a welder posted by Stan in Oly, WA on February 25, 2013 at 00:10:45:
Grounding question for an electrician. Below is posted a couple of welding incidents, situations or maybe mild accidents. I read an article in the newspaper maybe 30 years ago of a farmer and son working on a manure spreader. Son was welding and father working. I have assumed the welder was an AC buzz box because that was what most farmers had back then. The news paper article did not say what the welder was.
There are a lot of electrically smart people on here so I will tell what I read to the best of my memory.
The welder was grounded to the rusty tongue of the manure spreader The son was welding somewhere on the spreader. Don't know if he was standing on the ground (dirt) or on the spreader itself. The father was laying on the ground working on the bottom of the spreader. This was a really hot and humid day like when you can't even walk outside without sweating. While the son was welding the father was electrocuted. The newspaper article said the father made a better ground than the grounding clamp. Any electricians want to comment on this? This is just what I read in the newspaper second hand to the best of my memory.
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