Re: 48 volt car elect not going to happen

Leo Lichtman wrote:
"Stephen Robinson" wrote: You need the VOLTAGE to to push the CURRENT in order to kill

someone(approx 30 mA).The human body is a very high resistance object, which needs very high voltage to provide that current. 48v ain't gonna be enough.

^^^^^^^^^^^^^^^^^^^^^^^
It is refreshing that SOMEONE seems to know this. However, I have a couple of reservations about your second sentence. The resistance of the body is almost entirely in the skin, which is quite high when dry. If, somehow, you got across some voltage while wet, or perhaps bleeding from an accident, the resistance could be very much lower. Secondly, the amount of current that can be lethal depends on the path through the body. The worst would be across the shoulders, which places the heart in the circuit. The path from one hand to the other, or from one hand to some lower part of the body could also be quite dangerous.



Actually either arm to the opposite leg is supposed to be the worst. I've gotten some shocks that get into the letal level, but it just happened to hit my muscles in the way that threw me off the circuit instead of the opposite. The worst is the condition of being "tetanized" where your muscles lock you on the circuit, and it can actually be very hard for insulated persons to knok you free with a hot stick or similar tool.
One guy at work was using a bad hot stick, and got tetanized while flipping a 4160 V switch and his safety watcher had to beat the CRAP out of him to break the connection.

(I don't work on this high tension stuff, but electronics, but I
am aware of the hazards.)

Jon
.

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