Electrical Shock .... /%#@

[Shannow]

Originally Posted By: Garak
I had a minority vote.

Yep, dampness, frayed cords, and "here, hold this asstos sheet down while I cut it with a circular saw" were in the same boat as kids.

As to shocks...asides from e cord thing, which were more buzzes an full blownnshocks.
* as a kid, I had one of those wind up generators from an old phone...refurbished it at 10, the proceeded to explore the galvanic effect on muscles...gave a reasonable belt.
* pulled apart andmessed with those piezo gas lighters for similar effect.
* usual belts working on cars with coils...2016 was exploring a misfire on my 3.8, and ended up with a spark jumping from acoil pack terminal to my finger and through me to the chassis...really hurt.
* early 20s I tried to make a capacitor with a spark gap for the coil lead of my holden, as an experiment...it was pretty well insulated, but had a length around the size of broomstick, 7" long, that I grabbed hold of, andi think it was the induced current in my hand that locked me onto it...couldn't let go, so after a few seconds, pulled the enite assembly off.
* got one of those plasma cigarette lighters in September for giggles...hook yourself acrossbtge terminals of that, and your elbows lock...

 

[dishdude]

Got bit by the flyback on old CRT TVs a few times. Man those things put out some voltage.

 

[Nick1994]

I've been shocked a few times, not horribly though. Most recent was when I changed the pool pump motor last month at my Grandma's house.

I remember in middle school at the bus stop if you touched the fire hydrant and light pole at the same time (about 5 feet apart) you'd get shocked. So we would get about 5 of us and touch hands and one person on the end touch the fire hydrant and the other person on the other end touch the pole.

When I was a kid my dad plugged in a small fiber-optic Christmas tree. It shocked him really bad. Then he tried it again (idiot!). That time it made him fall back about 8 feet into a wall and knocked him out. Once he awoke he was curious if it was the outlet or the tree that was the problem, so he went out onto the back porch and tried it a 3rd time. You guessed it, ZAP!

He called my mom (parent's divorced) and she took him to the hospital. I was probably 5 at the time and I remember him walking really weird, the the muscles in the backs of his legs were rock hard. He also had to wear special goggles for a little while because his eyes were so blood shot.

 

[Sunnyinhollister]

Originally Posted By: Papa Bear
I'm a retired TV tech - too many 25-35,000 volt shocks to mention

Beware of the power that lurketh in undischarged capacitors.

 

[Rick in PA]

Old work story. I use to work with an older guy, Jack. He told me of one time he was working on a dishwasher, his son-in-law was with him (fortunately). While he was reaching into the dishwasher he locked on due to electrical shock. His son-in-law noticed something was wrong and called out "Jack" "Jack!" "JACK!", no response. His son-in-law got behind him and pounded him free with two fists. A very close call. Jack told me that later he had a lot of problems with the molars in his jaw due to how hard his jaw was clenched shut during the electrical shock.

 

[DriveHard]

120V AC lots of times
Spark plug lots of times
capacitor several times

The most interesting was getting hit by lightning though. My wife, myself and our infant son at the time got struck by lightning in our car. Pretty amazing experience actually. I was turning left through an intersection. All of a sudden the most intense "impact" I have ever experienced, then all the lights on the dash lit up. I thought we got broad sided by another vehicle. I got out of the car to see how bad the damage was, and my wife got out shortly after. I realized the car was perfect...not a scratch anywhere! I finally realized what happened and yelled at my wife to get back in the car! My wife was in a lot of pain, and we realized she actually got partially hit. She had a burn mark on her shoulder near the seatbelt anchor and another on her hip by the seat belt buckle. I re-started the car and all the warning lights were still on. I drove her directly to the emergency room. She had to remain there for a number of tests over several hours, but ended up just fine. I was totally unharmed and our son slept through the entire incident in his car seat!

The car was indeed damaged after more careful inspection. It blew the trim pieces off of all three pillars (A, B, and C) on both sides of the car. It also totally fried the ABS computer as well as the airbags and airbag computer. After insurance repaired what was "known" I quickly dumped the car in fear of damage that was unknown.

 

[Win]

Originally Posted By: MolaKule
Originally Posted By: Papa Bear
I'm a retired TV tech - too many 25-35,000 volt shocks to mention

Last big shock was from 875VDC across one hand from a Ham rig.

No damage but got my attention.

Yep, I touched the top ( or it came out and got me ) of a 6146 when I was about fifteen. I got up on the other side of the room.

I still work with a lot of high-ish voltage, but have never been hit by more than 300 vdc or so, since.

I prefer getting zapped by dc. Never cared much for the pulsation of ac.

 

[Win]

Originally Posted By: Papa Bear
Originally Posted By: MolaKule
Originally Posted By: Papa Bear
I'm a retired TV tech - too many 25-35,000 volt shocks to mention

Last big shock was from 875VDC across one hand from a Ham rig.

No damage but got my attention.

RF burns count as "shocks" ??

Keep your fingers away from the 1Kw balanced antenna line ......

I don't like RF jolts at all, and it can do some deep damage. I got bit a couple of weeks ago by something that was oscillating at maybe 25 watts or so ( but shouldn't have been ) and I felt it in my fingertip and all the way up my arm for the better part of the day.

 

[Garak]

Originally Posted By: Shannow
As to shocks...asides from e cord thing, which were more buzzes an full blownnshocks.

I think the frayed cord with wet gloves was more of a buzz than anything else, too, but I was not pleased in the least. I hated that cord for as long as I could remember, and then I found out it was out to get me.

dishdude: My dad got zapped by a CRT back in the mid 1980s. Maybe that's karma for the stupid frayed cord he loved so much.

 

[kc8adu]

plate supply in a ft-101 gives quite a bite.
plate supply in my mla-2500 would do real damage.i dont want that bite!
Originally Posted By: MolaKule
Originally Posted By: Papa Bear
I'm a retired TV tech - too many 25-35,000 volt shocks to mention

Last big shock was from 875VDC across one hand from a Ham rig.

No damage but got my attention.

 

[HerrStig]

Originally Posted By: Rick in PA
When I was a young tech, I brushed my hand against 5,000 volts at 3 milliamp. My arm felt as though it was buzzing for the rest of the afternoon. That taught me some respect.

The voltage has to be high enough to break through skin resistance. I think about 48 volts is considered the threshold. That's why the 12 volt systems in cars don't generally give shocks.

There's a current threshold too. Over about 10 milliamp causes loss of muscle control. If you're grasping the part, you can lock on. That's when you have real trouble.

High frequency AC (at high voltage) does some weird stuff. It can induce a current by capacitive coupling. Under the right circumstances, you can get a shock without even touching the conductor. For example; holding an insulated wire and brushing your hand against an electrical ground can give a surprising shock at the ground point.
That's why you probably won't see widespread use of 48V car electrics any time soon. There's a state hereabouts which is putting special plates on "electric" cars to warn fireman of what's inside (though it may just be an excuse for a new series of low number plates -- that state is obsessed with them)

 

[HerrStig]

Mensa candidates have climbed substation fences get inside and steal copper, often proving that Darwin was right. One candidate who survived when his partner in public service was killed said he was told "the green" surface corrosion meant the wires were safe. He heard it from a guy who heard it from a guy......

 

[ragtoplvr]

Tube color tv like 45 years ago. A friend of mine and I entered his home, here was is dad out cold on the floor, and the back off the TV. His dad was like 70 at that time, we thought he was dead. But he woke up cussing, and lived many more years. TV though, he pulled out the anode cap, and we had to replace some parts other than tubes.

Worst for me, tractor magneto. Arm hurt for a week.

Rod

 

[Jarlaxle]

Stun gun in my mouth.