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Table 1. Estimated effects of 60 Hz AC currents*
; e% ~, `$ a3 k! F9 c # Q2 Y% \- e1 o( {+ P @% ~
1 mA Barely perceptible
1 e" ?: t, W% A/ |; O' a16 mA Maximum current an average man can grasp and “let go” 2 Q7 ` X1 U, v+ f7 J
20 mA Paralysis of respiratory muscles
& z: z9 Q9 k2 ?" K) i100 mA Ventricular fibrillation threshold + x- _1 A6 ?1 [1 w$ z1 q4 J# u
2 A Cardiac standstill and internal organ damage 3 s% s+ ?( {( u0 ^4 ?* w; ~
15/20 A Common fuse breaker opens circuit†
( `% h1 U- h4 J: d8 o' y% k . e" M$ N1 p# }7 s! j* e
*From NIOSH.1
$ X3 v6 c9 h, q* z†Contact with 20 mA of current can be fatal. As a frame of reference, common household circuit breaker may be rated at 15, 20, and 30 A.
" @/ w3 ~9 n# p& F1 |! n3 d- H0 O. rhttp://www.eplasty.com/index.php ... ume-09-eplasty-2009 |
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