Alternating Current and the Human Body
Alternating current can be very dangerous to humans because it messes with the signal pathways and the heart.
Range | Effect |
---|---|
0.1 mA to 1 mA | Tickling in the hand. |
1 mA to 5 mA | Hand and arm become stiff. |
5 mA to 15 mA | Spasm in the arm, only barely able to let go. |
15 mA to 25 mA | Spasm in the arm, not able to let go of the connector anymore. No other harm. |
25 mA to 50 mA | Blood pressure increases, heart beat is irregular now. |
50 mA to 80 mA | losing consciousness, heart stops for a bit. |
80 mA and above | ventricular fibrillation after 0.3s. |
These values are for a human body with a total resistance of 1300 Ω.