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
|
