Re: 48 volt car elect not going to happen
- From: "Martin H. Eastburn" <lionslair@xxxxxxxxxxxxxxxx>
- Date: Sun, 03 Feb 2008 22:18:59 -0600
48v is dangerous when considering a sweaty (salt) body - auto mechanic...
In shops the habit is to un-hook the battery and hope something doesn't
just come on. The DC motors on fans started that, but neck chains,
nose pins, .... rings and the normal stuff makes good resistance.
Getting a ring across 6V melts the gold/silver/copper metal and burns
off the finger. Rather instantly since it is red hot.
Sweaty body parts - left leg and left hand is dangerous but the right
hand to left leg is worse. I normally worked with my right hand
in my pocket when possible. Impulse actions grabbing a dropping xxx
can be the worse action.
Believe that 12 and 24 is dangerous enough. Higher voltage just makes
it easier to be harmful.
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/
Stephen Robinson wrote:
Leo Lichtman wrote:."Stephen Robinson" wrote: You need the VOLTAGE to to push the CURRENT in order to killAgreed, I still don't think 48 v is going to be very dangerous.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.
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