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Article #2848Re: HV shocks (was: Jacob's ladder)
From: Robert S. Helfman
Date: Tue, 14 Apr 1992 02:57
Date: Tue, 14 Apr 1992 02:57
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In article <1992Apr13.063137.18999@u.washington.edu> pollock@milton.u.washington.edu (Joe Pollock) writes: >In article <1992Apr12.140143.420@cmkrnl.com> jeh@cmkrnl.com writes: >> >>I agree with Mike. In fact I think you can get a deadly shock from such a >>transformer even if you are standing on the semi-mythical dry wood on glass >>insulators (do you know anyone who actually works that way?), and even if you >BTW - I found out about all of this the hard way. I was in the eight or >ninth grade, and messing around with a sign transformer in the basement. >attempting to draw a fine corona from the other *terminal* off the ................. >screwdriver point. The result was a fat yellow arc about an inch long. >My arm snapped back, and the screwdriver stuck in the wall behind me. >My arm and legs hurt for several days. I learned to be a *lot* more >careful very quickly :-) One of the worst shocks I ever received. > >Amazing some of us ever reach legal maturity, isn't it? Funny, I was exactly the same age when I got my first (and last) shock from a sign transformer. I was at a junior high carnival and I set up a Jacob's Ladder. It was nighttime and I was moving it around with the power on. (It seems everyone is sure they're immortal at that age!). I remember that when I made contact, I was living proof that it's only a myth that "White Men Can't Jump"! I must have gone three feet straight up. My arm, legs, back, everything hurt for a week afterwards - and it WAS the worst shock I ever received. (It was right-arm-through-body-to-leg.) I don't think I've gotten over 500 volts since that had ANY current capacity - that was in the days of 450 vdc supplies driving tube equipment. I've had some CRT bites but nothing that could deliver serious current. I'm almost 54 and I can still remember that shock at age 13 like it was yesterday. It's one of the few memories from that age that I still have!
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!aero.org!helfman From: helfman@aero.org (Robert S. Helfman) Subject: Re: HV shocks (was: Jacob's ladder) Message-ID: <1992Apr14.025731.4589@aero.org> Sender: news@aero.org Organization: The Aerospace Corporation, El Segundo, CA References: <7480045@hpfcso.FC.HP.COM> <1992Apr12.140143.420@cmkrnl.com> <1992Apr13.063137.18999@u.washington.edu> Date: Tue, 14 Apr 1992 02:57:31 GMT Lines: 34