Hazards of Electricity

Effect of electrical current on human body

Reaction	Current
Generally no perceptible	Bellow 1 mA
perception threshold (tingling sensation)	1 mA
upper limit of safe or harmless range	5 mA
Painful shock, loss of muscular control. the freezing current or ''let-go'' range. Individual cannot let go, but can be thrown away from the circuit if extensor muscles are stimulated.	6 to 25 mA (women) 9 to 30 mA (men)
Extreme pain respiratory arrest (breathing stops), sever muscular contractions. Death is possible.	50 to 150 mA
Rhythmic pumping action of the heart ceases. Muscular contraction and nerve damage occur; death likely.	1000 to 4000 mA
Cardiac arrest and sever burns occur. Death is probable.	10000 mA
Lowest over current at which a typical  fuse or circuit breaker opens a circuit.	15000 mA