Quote:
|
Originally Posted by Butcher
Usually listed as 30mA from what I've seen, it varies per person though.
Micro-amps aren't that dangerous, it's when you get above a few mA that things get risky. My physics teacher back at school shocked himself on an EHT supply at 5kV, it was current limited to 5mA and he survived (just said "ouch" loudly). As long as you use a current limited EHT supply it's not more dangerous than dealing with the AC line (probably much less dangerous in fact).
|
If he was smart (and still alive), your teacher probably did not allow the current to flow THROUGH his chest.
Edited to add this:
My digital mutli-meter gives my body resistance (arm to arm, dry skin) as about 1.4M Ohm. When the DC voltage being measured exceeds ~ 40V the High Voltage indicator comes on as a safety warning. The amount of current that would flow through my body at this voltage is about 28 uA.
It is not about damaging the heart. It is about confusing the nerves that use electrical impulses to control the heart beat. These nerves work at considerably less than a few mA.