What are the hazards of electric current to the human body?

With the progress of society, various electronic products have emerged. People are becoming more and more dependent on various electronic products, such as mobile phones, computers, etc. So when we use these electronic products, is the electric current generated by them harmful to the human body? This has also become something that some people want to know. Next, let’s talk in detail about the hazards of electric current to the human body and the precautions when using electronic products.

1. The harm of electric current to human body

When electric current passes through the human body, the severity of the damage to the human body is related to many factors such as the magnitude of the current passing through the human body, the duration of the current passing through the human body, the path of the current passing through the human body, the frequency of the current and the condition of the human body. Moreover, there is a very close relationship between various factors.

1.1 Relationship between the degree of injury and the magnitude of the current

When electric current passes through the human body, the person will feel numbness and pain. In more serious cases, it can cause tremors, convulsions, cardiac arrest and even death. The greater the current passing through the human body, the more obvious the physiological reaction of the human body and the stronger the feeling.

For industrial frequency alternating current, the current can be divided into the following three levels according to the different magnitudes of the current passing through the human body and the different states of the human body:

1.1.1 Perceivable current Perceivable current is the smallest current that a person can feel. Experimental data show that different people perceive different currents: the average perceived current for adult males is about 1.1mA; for adult females it is about 0.7mA.

1.1.2 Escape current Escape current is the maximum current that a person can escape on his own after being electrocuted. Experimental data show that the escape current is different for different people: the average escape current for adult males is about 16mA; for adult females it is about 10.5mA. The minimum escape current for an adult male is about 9 mA; the minimum escape current for an adult female is about 6 mA (the minimum escape current is based on a probability of 0.5%). The above is a detailed introduction to some precautions about the hazards of electric current to the human body. I believe everyone already knows that different electronic products bring different amounts of current. When using, be sure to follow the instructions. For long-term aging power switches. It should be replaced in time to avoid electric shock and other situations during use.