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Old 09-01-2020, 7:11pm   #27
JRD77VET
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Quote:
Originally Posted by z06psi View Post
Wait till you have 440V at 300 amps blow up in your face with an arc flash.

I quit work for over an hour because of that. Took out the whole section of a FOB when I did that.


No voltage or amperage is on the low end.
As a machinist, I make various parts for industry. One of the parts is copper bars for use in electrical equipment. The parts get silver ( or at least a silver color) plated.

One of the guys from the company brought back a part they needed to be replaced. He said "We had a little problem" with a big grin.

The copper bar was 4" wide and 3/4" of an inch thick ( rounded edges) and started life 10" long.

It was now about 6" long and the missing part looked like "hot fingers" scooped out the copper.

I asked WTF happened and he said it was quite loud as the copper turned to vapor and disappeared due to a short.

F that. I'll work on multi ton weldments in the lathe before I work with anything more than house current. ( yes, I know 120VAC can kill you )
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