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Safety, Electricity and Death Answered

I came across this AC safety info and found it useful enough to share.

Link: www.cdc.gov/niosh/docs/98-131/overview.html

1 mA Barely perceptible
16 mA Max current an average person can grasp and let go
20 mA Paralysis of respitory muscles
100 mA Ventricular fibrillation threshold
2 Amps Cardiac standstill and internal organ damage
15/20 Common fuse or breaker opens circuit

I later found this DC info...

Link: www.allaboutcircuits.com/vol_1/chpt_3/4.html

"AC ... is 3 to 5 more dangerous than DC of the same voltage and amperage."

Slight sensation felt at hands
Men: 1.0mA, Women: 0.6mA

60 Hz AC
Men: 0.4mA, Women: 0.3mA


Painful, but voluntary muscle control maintained
Men: 62mA, Women: 41mA

60 Hz AC
Men: 9mA, Women: 6mA


"In industry, 30 volts is generally considered to be a conservative threshold value for dangerous voltage. The cautious person should regard any voltage above 30 as theratening, not relying on normal body resistance for protection against shock."


about your final comment:  this means that even your phone line wires, if bare, can be dangerous (I have actually received a rather nasty jolt, while installing a "modular socket" into an old wall junction); I happened to be touching both wires when someone "rang me up" (about 90 v).  It wasn't pleasant, for sure. 

.  It's true! That pulsing ~90V will at least scare the crap out of you and possibly hurt yourself getting away from it.

That sounds fun!  I can't wait.  I'll have to try that tonight.