Not good to drop the end of an extension cord into the bathwater.
Posted on 02/12/2015 8:39:38 PM PST by Swordmaker
Per FR Policy, Link only:
Russian woman dies after dropping charging iPhone into bathtub
and, most importantly, she placed her hand or other contact in the water
It’s a fake, but still funny. But there are people who see nothing wrong there.
This is for AC at typical power distribution frequencies (50-60 Hz):
As the amount of steadily applied current increases, deeper tissues are affected resulting in laboured breathing at between 20 and 100 milliamperes and possibly heart fibrillation, at 50 to 100 milliamperes. Once in fibrillation, the heart generally does not start beating normally again without intervention. This will result in death.This is why GFCIs are set to trip at around 5 mA.Above about 100 milliamperes our breathing stops and our hearts can no longer beat. If the current is removed soon enough, our hearts may begin to beat again and there may not be any permanent damage.Our skin begins to burn above 300 milliamperes. As the current increases above an ampere, skin, muscle and internal organ damage will occur.
DC at 5 Volts, 1 Amp is considered safe.
No, at 60Hz, 0.1 amp transthoacic charge for 3 seconds is adequate to induce ventricular or aortic fibrillation.
Skin resistance is overcome at about 30V and depending upon the path of the current, will effect the body differently.
500 ohms is standard resistance of the human body (sweaty or wet skin with good grounding).
Simplified Ohm’s Law of V=IR, 0.1 amp x 500 Ohms = 50V. Hence OSHA requirements for insulated conductors for anything above 50V.
The current doesn’t always gross the heart, so not everybody dies from 50V shocks.
The bodily perception of the shock has a threshold of about a milliamp and 5-10mA will be painful.
A Taser uses high voltage with little pulsed current, causing muscular fibrillation between 2 wires with darts penetrating the skin, inducing a current pathway between them.
http://www.taser.com/research-and-safety/how-a-taser-works
good points.
5VDC @ 50mA ? Riiiight!
They charge pump to 50,000 volts.
Just a guess, but I imagine she was in the tub using her charging phone. Those cords aren’t very long, and at some point she managed to pull the cord into the water.
Although, rather an invalid argument at 50-60 cycles per second.
AC was more, not less, dangerous, at least according to Edison.Recall that Tesla and Edison battled over the danger of Edison's preferred DC current's danger to electrocute people. AC was safer because you could let go of it, the argument went.
Westinghouse was promoting AC power distribution and was winning over Edison because AC is technically superior in that application. Edison had implemented some of the very earliest electric utilities, and they were DC-based.
However, AC is indeed more dangerous to humans. Hence, Edison tried to coin the transitive verb "to westinghouse", meaning "to electrocute". And, indeed, all implementations of Old Sparky have been AC-powered. As are all modern power grids.
I agree. Specifically, Edison promoted the Electric Chair - using AC - specifically for the purpose of promoting the idea of the danger of AC. Edison was selling . . .You're thinking of George Westinghouse, not Nikola Tesla.
I believe that to be a distinction without a difference, in that Westinghouse was only in electricity because Tesla - a former employee of Edison - convinced Westinghouse to promote AC.
Westinghouse bought the rights from Tesla and Tesla worked for him, albeit he retained a 2% royalty per KwH. Later, when Westinghouse told him he was on the verge of bankruptcy, Tesla gave back the royalty clause.
No electric outlets in Russian bathrooms?
Oh the trophy wives/girlfriends/mistresses and bimbos wouldn’t stand for that. No hair dryer or curling irons and stuff?
Not buying it.
“She applied the juice for 45 seconds.”
Yeah, that might do it. They’re only supposed apply juice for 5 seconds.
yep...
“I am an electrician... and yes it would.”
So... You are telling me that 5 volts dc at 1 amp will kill you? I’m having a little trouble with that one. I’m not an electrician, but that seems like quite a stretch.
You haven’t explained how you propose to force an entire amp through the heart of a person using only 5 volts.In reality, according to what I think I know, an electric shock which throws the heart into fibrillation doesn’t take a whole world of juice - and you can die of that. Just get zapped at the wrong time in the heartbeat cycle, and you are in deep trouble.
"The rules for electric installations" forbid wall sockets inside a bathroom/closet. Trophy wives/girlfriends/mistresses and bimbos have to use the stuff in a sleeping room. Or pretty often there is a wall socket just outside the door.
Tasers kill:
634 Taser-Related Deaths in the United States Since 2001
They are far safer than hitting someone with a firearm, which can be fatal most of the time, but you hit someone in the right place so that the charge interrupts the heart and proper medical care is not administered, that person can die. Anything that can disrupt the body like a Taser can, can disrupt the heart's proper function.
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