pompeii -> RE: Potentially dangerous activities (5/7/2010 12:22:18 PM)
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quote:
ORIGINAL: BoiJen What I'm saying is...from a guy who builds these things, he said it could happen even when the pads aren't near or crossing the chest area. When the going gets technical ... the technical get going ... A fatal combination of current, voltage, and frequency are not all that hard to come by so do be careful, especially with modified equipment. What you're mainly worried about is your heartbeat. A heart beating at battery frequency (i.e., not beating) won't pump blood; neither will a heart beating at 60 Hz, which is ten times a normal heartbeat. The heart likes to beat at roughly once to twice a second (give or take, depending on how gorgeous your sub is when she's naked). If you subject the heart to AC current, the heart will be controlled by that current if it's more than a few milliamps (enough to light an LED). A voltage across the heart of just a few microvolts (note, micro, not milli!), can take over the entire heart's muscle beating. Of course, most of the time you have skin resistance so, generally speaking, about 25 volts is the threshold for beginning to get dangerous even if the voltage source can supply amps of current. My suggestion: Make sure the person's body is clean and dry and has no openings in the skin for your electrical play. Take the normal precautions even if you're using those 50k volt current-limited high-frequency violet wands; they're designed not to vfib the heart ... but they can under the wrong circumstances.
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