Man grabs high voltage wire while on top of train..... does not end well

Page 3 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

markgm

Diamond Member
Aug 23, 2001
3,291
2
81
"I see how some people get a charge out of this but I think it is shocking. We'll never know if the currents of this man's life allowed him to live up to his full potential. It looks like people tried to defuse the situation but the gentleman may have been of diminished capacity. I could say something flip but I'd rather state my resistance to doing so."
 

lxskllr

No Lifer
Nov 30, 2004
59,957
10,437
126
Originally posted by: markgm
"I see how some people get a charge out of this but I think it is shocking. We'll never know if the currents of this man's life allowed him to live up to his full potential. It looks like people tried to defuse the situation but the gentleman may have been of diminished capacity. I could say something flip but I'd rather state my resistance to doing so."

6/10

Clever, but a little forced :^)
 

QueBert

Lifer
Jan 6, 2002
22,974
1,174
126
Originally posted by: SandEagle
:(
rose.gif


tragic....

doesn't look like he did that intentionally......

HOw can you possibly find this tragic? I mean I've already seen 3 other incredibly weak and lame puns about how he died, and I'm not even 1/2 way down the thread yet. Obviously this is a thing of great humor and should be laughed at. Death is hilarious you know.
 

LordMorpheus

Diamond Member
Aug 14, 2002
6,871
1
0
Originally posted by: Sea Moose
Lets put this into perspective.

240v supply with a kettle with a resistance of say 26ohms

ohms law = V/R=I

Therfore 240volts/26ohms = 9amps


The man in the video.

The human body has a resistance of about 50,000 ohms(this varies from person to person)
The voltage on the site says the main line voltage is either 1.5kv DC or 25kV AC.

We can calculate both figures using ohms law.

1 500volts/50 000ohms = .3amps <--- Thats right, less than one amp.

25 000volts/50 000 = .5amps <--- Also less that one amp.



The interesting thing is his power output

When charcol gary is drawing .3amp his power output is 45watts <--- Comparable to a light globe
When charcol gary is drawing .5amp his power output is 12500watts <--- comparable to an air conditioning unit for a small house.

Take this into account

.001amps to 0.01 = threshold of sensation
.01amp to .1amp = painful shock, cannot let go, muscular paralysis, severe shock, breathing difficultys
0.1amps to 0.2 amps = death
0.2amps to 1.0amp = severe burning.




May i remind all to be careful around electricity please. may i also point out that his arms go rigid.

Assuming his skin was wet due to sweat, you're looking at closer to 3000 Ohms.

So say half an amp of current dissipating 750 Watts of power.

For the system to detect a fault severe enough for it to cycle like that, maybe there is something else at work here? Surely the train draws on the order of several hundred kW to run, so how would half an amp trip the system?
 

Whitecloak

Diamond Member
May 4, 2001
6,074
2
0
Originally posted by: markgm
"I see how some people get a charge out of this but I think it is shocking. We'll never know if the currents of this man's life allowed him to live up to his full potential. It looks like people tried to defuse the situation but the gentleman may have been of diminished capacity. I could say something flip but I'd rather state my resistance to doing so."

and you posted something serious on tfnn?
what the hell is wrong with you?
 

destrekor

Lifer
Nov 18, 2005
28,799
359
126
Originally posted by: QueBert
Originally posted by: SandEagle
:(
rose.gif


tragic....

doesn't look like he did that intentionally......

HOw can you possibly find this tragic? I mean I've already seen 3 other incredibly weak and lame puns about how he died, and I'm not even 1/2 way down the thread yet. Obviously this is a thing of great humor and should be laughed at. Death is hilarious you know.

death doesn't bother me, unless it is tragic. This guy grabbed a damn overhead powerline while standing on a train. That is not tragic. That is nature taking care of matters through darwinism. Darwin Award winner, unless he did it on purpose.

We as a species have put too much weight and ceremony onto death. Part of it is because we have grown so damn populated in the world, with little in nature posing a daily risk, that death is deemed tragic.

Hell, I think the guy got a lucky break. He didn't really feel much for long, and now doesn't have to worry about the pointless daily shit we put ourselves through. ;)


Oh and, speaking of this whole thing:
DAMN. Smokey.

It wouldn't even take the amperage that had been calculated above to have done this, and that extra amperage and voltage is what helped make the guy all smokey. Since it was traveling from his arm above his head, to his feet, and was such a direct connection, hitting him twice... he was well done. He might not have even survived the first shock, but the electricity overload caused all his muscles to completely contract, so that second shock basically wasn't avoidable since he has grasped it with his palm - as that contracted back on the wire. He remained standing since his legs and core were completely rigid until the electricity had dissipated enough for him to collapse. He had been dead far before he fell, and like I said, probably before the second shock. All that did was ensure he was toasty when it was all said and done.
 

markgm

Diamond Member
Aug 23, 2001
3,291
2
81
Originally posted by: Whitecloak
Originally posted by: markgm
"I see how some people get a charge out of this but I think it is shocking. We'll never know if the currents of this man's life allowed him to live up to his full potential. It looks like people tried to defuse the situation but the gentleman may have been of diminished capacity. I could say something flip but I'd rather state my resistance to doing so."

and you posted something serious on tfnn?
what the hell is wrong with you?

This was just a quote from that site!
 

Whitecloak

Diamond Member
May 4, 2001
6,074
2
0
Originally posted by: markgm
Originally posted by: Whitecloak
Originally posted by: markgm
"I see how some people get a charge out of this but I think it is shocking. We'll never know if the currents of this man's life allowed him to live up to his full potential. It looks like people tried to defuse the situation but the gentleman may have been of diminished capacity. I could say something flip but I'd rather state my resistance to doing so."

and you posted something serious on tfnn?
what the hell is wrong with you?

This was just a quote from that site!

are you still my friend in the Digital Age?
 

Special K

Diamond Member
Jun 18, 2000
7,098
0
76
Originally posted by: LordMorpheus
For the system to detect a fault severe enough for it to cycle like that, maybe there is something else at work here? Surely the train draws on the order of several hundred kW to run, so how would half an amp trip the system?

Good point.
 

CountZero

Golden Member
Jul 10, 2001
1,796
36
86
Originally posted by: Special K
Originally posted by: LordMorpheus
For the system to detect a fault severe enough for it to cycle like that, maybe there is something else at work here? Surely the train draws on the order of several hundred kW to run, so how would half an amp trip the system?

Good point.

I'd imagine its something like this. It detects a difference in current in and out essentially. So the guy was pulling current to earth ground and not completing the normal circuit.
 

TwiceOver

Lifer
Dec 20, 2002
13,544
44
91
Just looks like he was walking along the top and decided to put his hand up for something to do (not knowing what the cable was). Obviously the last thing he did ever, other than leave a crispy corpse and a cool video.
 

Miramonti

Lifer
Aug 26, 2000
28,653
100
106
If he jumped and touched it mid-air and let go before landing back on the train, would he have gotten fried?
 

Special K

Diamond Member
Jun 18, 2000
7,098
0
76
Originally posted by: CountZero
Originally posted by: Special K
Originally posted by: LordMorpheus
For the system to detect a fault severe enough for it to cycle like that, maybe there is something else at work here? Surely the train draws on the order of several hundred kW to run, so how would half an amp trip the system?

Good point.

I'd imagine its something like this. It detects a difference in current in and out essentially. So the guy was pulling current to earth ground and not completing the normal circuit.

Ah, so basically like the GFCI's you find in household bathroom outlets.

Wouldn't it still be pretty dangerous to automatically restart the high voltage line, and so soon after the fault is detected? With household bathroom outlets, you have to manually push the reset switch on the outlet after the breaker trips. Not that it mattered much for the guy in this video, as I imagine he was probably dead after the first pulse.
 

Special K

Diamond Member
Jun 18, 2000
7,098
0
76
Originally posted by: jjsole
If he jumped and touched it mid-air and let go before landing back on the train, would he have gotten fried?

No, although I suppose if the voltage had been high enough (tens of kV maybe) it could have ionized the air between the train and his feet and created a conductive path that way.

 
Apr 17, 2005
13,465
3
81
Originally posted by: zerocool84
Originally posted by: SandEagle
:(
rose.gif


tragic....

doesn't look like he did that intentionally......

Why are you giving him a flower? He did intentionally do it. Did you not read the article?

still, he prolly had some sort of mental illness.
 

Wheezer

Diamond Member
Nov 2, 1999
6,731
1
81
SPARKY!!!!!......NOOOO!!!

you gave light to so many and yet went in a flash.......


ragdoll physics FTW!