Electric Shock
Electric shock is when a current flows through the human body.
Ventricular fibrillation
Prevention of the heart to act as an effective pump. Stops blood circulation to all parts of body. Causes death in a very short time.
Degree of danger
Depends on
- Value of the body current
- Time for which the current flows
Zones
The below chart shows the time/current zones of effects of 50 Hz current on the human body:
| Zone | Description |
|---|---|
| Zone 1 | No sensation |
| Zone 2 | Perceptable. Not harmful. 10mA is the threshold of let-go |
| Zone 3 | Mascular contractions and difficulty in breathing. Usually no danger of ventricular fibrillation. (0.5% possibility) |
| Zone 4 | Probability of ventricular fibrillation increases. (a - up to 5%, b - up to 50%, c - more than 50%) |