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4hv.org :: Forums :: High Voltage
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zvs deadly?

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Dri0m
Fri Aug 17 2012, 07:48AM
Dri0m Registered Member #4497 Joined: Thu Apr 19 2012, 12:53PM
Location: Behind you
Posts: 62
i was, an AC Flyback (!) directly electrocutred and paralyzed me for about ten seconds (from one hand to another), plus my power source didn't have caps, so i felt 50Hz flowing through my body... well, it burned my fingers and they hurt for a few weeks, that's all
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Harry
Fri Aug 17 2012, 11:32AM
Harry Registered Member #4081 Joined: Wed Aug 31 2011, 06:40PM
Location: UK
Posts: 139
Wet skin resistance drops to about a third of dry skin resistance (from what I tried with a multimeter and a bucket of tap water), so every little helps!
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zippotix
Fri Aug 17 2012, 12:07PM
zippotix Registered Member #5208 Joined: Thu Jun 07 2012, 06:12PM
Location:
Posts: 86
I was shocked by a ZVS. The battery was almost discharged, and it was running on 12v, it hurt a bit, but not worse than a wall socket shock (which indeed hurts). I don't know if it can be counted as a shock by ZVS, but when drawing arcs, something stopped working (positive lead got loose a bit). I poked the MOSFETs, when suddenly power came back on, and it kicked me. It was running on 24v. I don't know how it's possible.
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Yanom
Fri Aug 17 2012, 01:44PM
Yanom Registered Member #4659 Joined: Sun Apr 29 2012, 06:14PM
Location:
Posts: 158
I got some $2 Gorrilla Grip gloves from the hawrdware store. After shocking myself on a camera flash cap I never touch anything over 9v without them now. They're covered in front with rubber(?) insulation but they don't interfere with my dexterity at all.
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Bjørn
Fri Aug 17 2012, 03:00PM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
We have some information here: Link2

There are too many variables to say on a general basis what is safe and what is not, the danger is a function of current, frequency and time.
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brandon3055
Fri Aug 17 2012, 04:20PM
brandon3055 Registered Member #4548 Joined: Mon Apr 23 2012, 03:52AM
Location: tasmania
Posts: 271
If heated that an electric shock can be faitle up to several hours after it is reseived due to damage to the body's electrical sistem dose anyone know if this is true? And how bad would the shock have to be
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hsieh
Fri Aug 17 2012, 05:40PM
hsieh Registered Member #1412 Joined: Thu Mar 27 2008, 04:07PM
Location: Taipei Taiwan
Posts: 278
Someone on a Chinese electronics hobbyist forum wrote that he "intentionally" touch the spark form a ZVS driven flyback(with an iron stick).The result is that he burn his hand and his shoe.

Another person wrote that his hand was seriously burned when he was accidentally shocked by ZVS driven flyback .
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Forty
Fri Aug 17 2012, 06:03PM
Forty Registered Member #3888 Joined: Sun May 15 2011, 09:50PM
Location: Erie, PA
Posts: 649
Yea I think i was shocked once by a zvs flyback. just gave me a little jolt and burnt a small hole in my finger. I imagine with the right transformer and input power that it could be fatal though, so be careful always. make yourself a nice chicken stick.
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Sulaiman
Sat Aug 18 2012, 12:57AM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
Of the 38 other electronic service guys I work with
very few have never had a potentially nasty electric shock
some know of electrical workers that have been electrocuted - very few
I believe you can be electrocuted by the battery in a multimeter,
or survive a lightning strike,
Overall, electronics is a lot safer than chemistry, cooking etc..
so ... do you feel lucky ?

Do your best to not rely on luck !
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Tetris
Sat Aug 18 2012, 03:22AM
Tetris Registered Member #4016 Joined: Thu Jul 21 2011, 01:52AM
Location: Gainesville, FL
Posts: 660
Sulaiman but sometimes currents feel good! :P but I did do a mistake when messing with a horse electric fence. Now touching this while wearing shoes feels good. Touching it with one shoe off onto wet ground and grabbing the full fence. No, that's 60mA and it doesn't feel good. I'm glad I didn't take off the other shoe and touched it with my other hand too... or even do it on that side. x3 But to me, 40mA DC with both hands on one terminal (20mA on each hand), that feels good. IDK why, but I like it. Doesn't make me clench, and I don't feel much pain :P I guess it is a good thing somewhat, that I can handle higher currents. Makes it a bit harder for me to get electrocuted. x3
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