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Table 1. Estimated effects of 60 Hz AC currents*
$ e p- n8 I1 R8 L! W / Z$ |8 {2 _2 l
1 mA Barely perceptible 4 W# z) y6 k* J3 T" b' n
16 mA Maximum current an average man can grasp and “let go” $ v8 y7 g2 ~& L1 k7 {
20 mA Paralysis of respiratory muscles
) u( Z1 V, e( A* }0 D9 s4 U100 mA Ventricular fibrillation threshold
3 I9 z. o, |4 V7 m2 A Cardiac standstill and internal organ damage
. ~4 r+ Y. K* M15/20 A Common fuse breaker opens circuit† 4 @* ~4 t3 t! `, x5 { I1 ]- Y
' g' X0 X+ f5 ^1 ]" o4 u
*From NIOSH.1 + z- ]/ R6 l/ c- D4 X
†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.
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