| Forum Home | ||||
| PC World Chat | ||||
| Thread ID: 137363 | 2014-06-29 04:04:00 | Theres got to be more to this | wainuitech (129) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1378103 | 2014-06-29 04:04:00 | As the title says, got to be more to this story usb-charger-electrocutes-woman-in-australia (www.stuff.co.nz) A USB powered charger simply doesn't have the power or wattage to kill one would think. Not like its putting out 240V or similar. 5802 |
wainuitech (129) | ||
| 1378104 | 2014-06-29 04:43:00 | I don't know enough about electricity to be sure (except to say a 9v battery to the tongue really hurts), but I'm sure it's amps that kill, not volts? | Greg (193) | ||
| 1378105 | 2014-06-29 05:23:00 | Maybe a faulty Transformer - sending 240V and related current (> than the typical rating when charging) and possibly earthing within her body. Those aftermarket chargers are fragile inside. I once soldered the wires (+, -) inside the shell, which were poorly attached to the circuit. Won't buy them now after this news. | kahawai chaser (3545) | ||
| 1378106 | 2014-06-29 05:25:00 | could have been one of those 240v to usb plug in the wall socket types. bad insulation could mean a jump from 240 side to the usb side. | tweak'e (69) | ||
| 1378107 | 2014-06-29 05:39:00 | Yeap it will be a knock off usb wall charger, and like above has said, the 240V side hasn't quite stayed on the 240V side would be my guess. | Alex B (15479) | ||
| 1378108 | 2014-06-29 08:18:00 | I don't know enough about electricity to be sure (except to say a 9v battery to the tongue really hurts), but I'm sure it's amps that kill, not volts? True sort off I've never really liked that argument, your skin is an insulator (not a great one) and low voltage doesn't have enough energy to cause any dangerous amount of current to flow. Even though it's amps that kill it requires a high enough voltage to make that happen. Unless you insert electrodes through the skin directly into sensitive areas in which case even low voltage is dangerous. I say it's voltage that kills, without it current doesn't flow and there are no amps. A car battery can put out hundreds of amps but you can safely hold both terminals in your hands and feel nothing (or maybe a slight tingle if your palms are sweaty) because it's low voltage. The 9V battery hurts because your tongue is a much better conductor that your skin. I always laugh when they torture people with car batteries in the movies, pretty sure that wouldn't work. Volts is a measure of how much energy each electron has, amps is a measure of how many of them pass a given point in a given amount of time. To be dangerous to humans you normally have to get above 80-90 volts but you only need a very small amount of current flow (milliamps) to kill someone. Considering the burns the story mentioned though I'd say there was a bit of current flowing around, it's also amps that make things get hot. |
dugimodo (138) | ||
| 1378109 | 2014-06-29 10:58:00 | You don't need very much current to interrupt your heart or kill you. www.physics.ohio-state.edu That story is a very good example of why I hate cheap crap knockoff power supplies from China for $2 or whatever. They are connected to the mains, but often have little or no safety mechanisms, not to mention often going faulty and destroying whatever they are powering. Don't save $10, save your LIFE and your $300 phone. Buy the real thing. It's not worth it. |
Agent_24 (57) | ||
| 1378110 | 2014-06-29 21:38:00 | It is believed a dodgy $4.95 phone charger sent a high-voltage electrical pulse into her phone, which transferred to the earphones she had connected to a laptop. www.smh.com.au Mr Stowe said the banned devices were made from low quality plastic that could melt and had no insulation pins or approval marks according to Australian electrical safety standards. news.ninemsn.com.au |
pctek (84) | ||
| 1378111 | 2014-06-29 22:35:00 | . . . . and the user completely failed to wear any form of hi-visibility clothing . How long before some civil service nong decrees ear muffs to be mandatory for earbud users? | R2x1 (4628) | ||
| 1378112 | 2014-06-30 04:51:00 | . . . . and the user completely failed to wear any form of hi-visibility clothing . LOL!! Make sure you live forever, I'd miss your comments if you weren't here . |
pctek (84) | ||
| 1 2 | |||||