When the human body is electrocuted, the greater the current and the longer its duration, the higher the risk. The danger levels can be categorized into three stages: perception-release-ventricular fibrillation.
1. Perception stage
The incoming current is very small (greater than 0.5mA), and the human body can feel it, which does not pose a hazard.
2. Release stage
Refers to the large current value (greater than 10mA) that a person can release when holding an electric shock. Although this current is dangerous, the individual can usually release it without fatal consequences. However, when the current increases further, muscle contractions may cause spasms, preventing voluntary release.
3. Ventricular fibrillation stage
As the current increases (>50mA) and the duration of electrocution prolongs (>1 second), ventricular fibrillation occurs. Immediate power disconnection is required to prevent death.
After installation, the electric shock protector will automatically cut off power within 0.1 seconds upon detecting a leakage fault, ensuring the safety of household appliances and family members. Installing one or several protectors near the meter can effectively prevent electric shock accidents and protect appliances from damage caused by voltage surges or short circuits.