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#31
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08-19-2009, 06:26 PM
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 My Rank: LANCE CORPORAL Poster Rank:2609 Join Date: Jun 2009 Posts: 162 Mentioned: 0 Post(s) Quoted: 5 Post(s)
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Re: Woman Covered in Cords
120 VAC can kill, 12 VDC can kill too. It's a matter of where you put the current through. I caught 220 VAC many times, accidentally (I'm not that fucked up... yet) and I'm fine (kinda... I'm a registered user here after all... can't be normal...). But it went trough my hands and arms mostly and always through the same. Going through your body, and your heart, is different. One case I remember, I was installing some lights in the backyard for a xmas party. One of the sockets was broken and it opened wide in my hand. I touched both the live wire and the ground wire with my hand, my hand contracted so bad that I was unable to release it. I had to hit it with my other hand to free myself. The current went mostly through my hand (it went numb for a long time, fortunately no burns) because the circuit closed in it. I was wearing sneakers with rubber souls, even if some current went through the rest of my body, it was a very small amount due to the higher resistance of that path. And this is important to consider when you install electric protection. Most modern houses have a combined protection of a thermal breaker and a differential breaker. The thermal breaker limits the total current, it breaks if the current exceeds a predefined threshold. But the current that a house consumes is more than enough to kill you. In my case, the thermal breaker didn't react. A differential breaker is for deviations of the current out of the circuit. It evaluates the difference between the live wire and the ground wire. If the amount of current between them differs in more than a predefined threshold, the breaker opens. It's for cases where you get a discharge from a faulty wiring or a metal case of a refrigerator or washer. You have to close the circuit against something else. I closed the circuit in my hand against the ground wire, so the amount of current was the same either way and the breaker didn't react. Ironically, if I were bare footed at that time, probably the differential breaker could have saved me from a xmas diner eating with my left hand only. |
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#36
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02-21-2013, 01:28 PM
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 (",) Poster Rank:215 Childbearer Join Date: Apr 2009 Posts: 6,714
Contributions: 4
Mentioned: 7 Post(s) Quoted: 1297 Post(s)
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Re: Woman Covered in Cords
seen this here before and you guys keep saying she... this was a teenager boy when i saw it here first. although i think i commented before that the boy was listening to his walkman player and maybe the earphone got tangled in the outlet where his player is directly power supplied (Not on batteries)... now you say its got a suicide angle. hhmmm.... could be...
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#37
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02-21-2013, 01:36 PM
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| (",) Poster Rank:215 Childbearer Join Date: Apr 2009 Posts: 6,714
Contributions: 4
Mentioned: 7 Post(s) Quoted: 1297 Post(s)
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Re: Woman Covered in Cords
when you say thermal, it refers to temperature. so a thermal fuse or breaker works only when the fuse or breaker reached the designed temperature limit... its for the purpose of burning houses where it cuts off power as the sprinklers turns on, thus preventing people to be electrocuted via working AC outlet through water. differential works when the load on the circuit abruptly ( strong sparks ) or losses load differences in terms of resistance . short circuit or any resistance near that will cause this device to work. |
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#38
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02-21-2013, 01:43 PM
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| (",) Poster Rank:215 Childbearer Join Date: Apr 2009 Posts: 6,714
Contributions: 4
Mentioned: 7 Post(s) Quoted: 1297 Post(s)
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Re: Woman Covered in Cords
human body have resistance that can be considered a resistive load thus will not trigger a circuit breaker device. unless you have breaker with a milliamp rating instead of amp. least breaker amp rating on a home circuit is 10amps. a body cant trigger that off how much more a breaker with 60-80amps rating? you will be fried and crisped and turned into human coffee and the breaker will still not go off. unless in your death throe, you accidentally slapped the two wires to touch each other directly, that cancels the resistance and will trigger the circuit breaker.
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#39
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02-21-2013, 01:45 PM
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| (",) Poster Rank:215 Childbearer Join Date: Apr 2009 Posts: 6,714
Contributions: 4
Mentioned: 7 Post(s) Quoted: 1297 Post(s)
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Re: Woman Covered in Cords
if you think your 120VAC is terrible, you should come over to our part of the globe and get a taste of our 220VAC normal residential power supply.
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