1, single-phase electrocution, in life is the most common, usually refers to a person in contact with a charged device or line in a phase conductor, the current flows through the body through the earth back to the neutral point.
2, two-phase electrocution, that is, the person touches two phase lines at the same time, or phase voltage and phase voltage between the electrocution, this electrocution is generally uncommon, but the danger is greater than the single-phase electrocution, the current will be formed in the human body in the circuit, the human body's electrocuted parts will be like an electrified resistor wire like burns and heat. And long duration, once the current through the important parts of the human body will cause significant harm.
3, contact voltage electrocution, electricians, especially maintenance electricians, the object of the work is electrical equipment, although the general electrical equipment are installed grounding protection device, however, if the grounding protection device is not standardized.
Or due to the zero fire connected to the wrong factors, resulting in uneven potential distribution, thus forming a potential distribution region, in this region, the human body and the shell of the charged equipment in contact with the contact voltage electrocution will occur.
4, step voltage electrocution, that is, when a person from the high-voltage power line landing point of 8 to 10 meters within the electrocution, the current along the lower body, from one foot to the leg, crotch and to the other foot and the earth to form a pathway to give a kind of not close to the object, the first by the feeling of electricity, a little bit of uncertainty.
Expanded information:
Electrocution treatment:
1, remain calm: many people encounter unexpected situations will be more panicked, and do not know how to handle. . Must remember, no matter what happens, we must remain calm and cool to face.
2, turn off the switch: encounter electrocution, our first reaction, or the first thing to do, is to turn off the electric switch. Only by turning off the electric switch, we can carry out some subsequent processing.
3, with the help of insulators: when encountered electrocuted people, do not use your hands directly to pull the electrocuted, that way will also lead to personal electrocution. We can use wooden sticks and other insulators to get the wires out of the way.
4, call the emergency number: after the appropriate measures, we should immediately call the emergency number, seek medical help.
5, special circumstances: if you find that the electrocution of the person appeared to respiratory arrest, and you also have a certain medical basis, you can start artificial respiration. Be sure to note that if you have not done artificial respiration, do not try.
6, exclude hidden dangers: After the whole thing is dealt with, you should exclude the hidden dangers of electrocution in your home or outdoors, in order to prevent this kind of accident from happening next time.
The human body and electric isolation, if the electrocution of the body of the person in a more serious situation, the need for first aid, then we first use the general chest cardiac compression method to help restore breathing, first of all, the electrocution of the person lying on his back and flat (head and chest at the same level) on a hard board or hard flat; (in a soft bed for cardiac compression is futile), the two hands of the ten fingers stacked, fingers cocked, and has been pressed to the patient to restore the heartbeat before it stops.
Make sure you don't give up easily until the EMTs arrive to take over. (There are a lot of precautions in the compression method, so I won't explain them all in this article.) For standard CPR, just remember that the ratio of compression to ventilation is 30:2, the first compression and then blowing, the frequency of compression is at least 100 times a minute, and blowing for one second each time, and the rest is just some technical essentials.
Baidu Encyclopedia - Electrocution