Electrocution injuries are common workplace accidents and can be divided into contact and non-contact electrical injuries. The former is mainly an electric current injury, which can damage the internal tissues of the body, such as the heart, respiratory system and nervous system. In the lighter cases, there is a sensation of pins and needles, shivering, spasms, increased blood pressure, irregular heart rate and coma; in the heavier cases, ventricular fibrillation, cardiac arrest, respiratory arrest and even death can occur. The latter is mainly an arc injury, which manifests as electrical branding, electrical burns, skin carbonisation, and in severe cases, deep penetration into muscles, bones and internal organs.
Research into the physiology of human electrocution shows that the perceived current is 1.1mA for adult males and 0.7mA for adult females, while the escape current is 16mA for adult males and 10.5mA for adult females. when the electrocution current is greater than the escape current, the electrocution victim cannot actively escape from the power source and without external help, the electrocution time will be prolonged and the risk of death will occur. Hands and feet are the parts of the body most likely to be injured by electric current.
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