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Recently, most cities in the north have heavy rainfall weather, the rainstorm brought not only precipitation, but also property and personal losses, lasting rainstorm weather, then we should be cautious in the use of electricity. According to reports, the reporter saw in a farmer's home that the electricity lines of the household were chaotic. Even the minimum household residual current action protector and knife brake are not installed. The reporter immediately informed the owner of the harm of not installing the household residual current action protector and the household knife brake, so that it can immediately buy the relevant electrical equipment, and ask a professional electrician to transform the power line to eliminate the hidden danger of electricity.

When a person is electrocuted, the more current that passes through the body the longer the phase lasts the more dangerous it is. The risk level can be roughly divided into three stages: perception - escape - ventricular fibrillation.

① Perceptual stage. The incoming current is very small, the human body can feel (greater than 0.5mA), and it does not pose harm to people;

② Get rid of the stage. Refers to the large current value (greater than 10mA) that people can get rid of when holding the electrode, although the current is dangerous, it can get rid of itself, and it is basically not a fatal danger. When the current increases to a certain extent, the electrocutor will be due to muscle contraction, spasm, resulting in the grip of the charged body, can not get rid of themselves.

③ Ventricular fibrillation stage. As the current increases and the shock time is prolonged (greater than 50mA and ls), ventricular fibrillation will occur, and if the power is not disconnected immediately, it will lead to death. It can be seen that ventricular fibrillation is the main cause of death by electrocution. For the protection of people, it is commonly used not to cause ventricular fibrillation, and the basis for determining the protection characteristics of electric shock.

After the electric shock protector is installed, once the leakage fault occurs, the protector will automatically cut off the power supply within 0】S through the leakage trip device, so as to protect the safe operation of various household appliances and the personal safety of family members. Installing one or several electric shock protectors next to the meter can effectively prevent the occurrence of electric shock accidents, and also prevent the damage of household appliances due to the rise in voltage. And can prevent the load is too large, resulting in wire heat short circuit, resulting in home fire accidents.

In order to eliminate the hidden dangers of electricity, while the basic power supply is correcting the user's home connection line, it is necessary to pay attention to the user's indoor line, see if the user has installed qualified household residual current action protectors and knives in the home, and whether the indoor line is in line with the safety of electricity protection, so as to truly realize the safety of rural electricity, the maximum elimination of hidden dangers of electricity, safety first.