Electric shock injuries include Is electric shock divided into electric shock and electric injury?

Nerve palsy, local tissue necrosis.

Electric shock is divided into electric shock and electrical injury, and the specific analysis is as follows:1. Electric shock: The electric shock can be caused by lightning, touching household wires, or wires broken in accidents, and contacting some charged bodies.

The severity can range from minor burns to death, depending on the type and intensity of the electric current, the resistance of the electric shock, the path the current takes through the body, and the duration of the electric shock.

2. Electrical injury: When the current flows through the human body, it will produce different degrees of tingling and numbness, accompanied by unconscious contraction. When muscles contract, strong contractions of the pectoral, diaphragm, and glottis muscles can impede breathing, killing the person who is electrocuted.

Breathing can be stopped by passing an electric current through the respiratory control center of the central nervous system. The passage of electrical current through the heart causes a malfunction of the heart, known as ventricular fibrillation, which causes the person to die quickly due to a lack of oxygen to the brain.

Precautions for electricity use:1. It is forbidden to move household appliances by hand, such as table fans, washing machines, televisions, etc.

2. It is forbidden to repair live lines or equipment at home with bare hands and feet.

3. It is forbidden to touch with wet hands or wipe lamps, switches and other electrical appliances with wet cloths.

4. It is forbidden to change the three-prong plug to a two-prong plug at will.

5. It is forbidden to pull and connect wires indiscriminately.

6. It is forbidden to add electrical appliances to the original line without permission.

7. It is forbidden to use unqualified electrical equipment.

8. It is forbidden to use electric irons, hair dryers, electric stoves and other electrical appliances unattended.

The degree of electric shock injury is divided into two categories: electric shock and electric injury.

1. Electric shock. Electric shock refers to the direct contact of the human body with the live part, and the electric shock is transmitted through the inside of the human body to cause damage to the tissues. If the current reaches a certain value, the muscles that come into contact with the charged part will spasm.

2. Electrical injury. Electrical injury refers to the effect of thermal, chemical and mechanical effects of electric current, which causes the metal particles to splash and invade the human body, resulting in local trauma.

There are three types of electrical injuries: burns, electric branding and metallization. In the work, we must strictly abide by the operating procedures, do not have a fluke mentality, and pay attention to the safety of electricity.

Yes! There are only two kinds of electric shock, electric shock and electric injury, electric shock refers to the flow of electric current through the body, causing the heart to stop can be fatal, and electric injury refers to arc burns.

Divided into electric shock and electric injury.

Analysis of electric shock and electrical injury: When a person touches a live wire, the current will pass through the human body, which is called electric shock. When an electric current passes through the human body, it can cause varying degrees of damage to the human body and internal tissues.

There are two types of injuries: electric shock and electric injury. The main forms of electric shock injuries can be divided into two categories: electric shock and electric injury. Electrocution injuries manifest themselves in many forms.

The cause of electric shock

Electric shock refers to the electric current that enters the human body after direct contact with the power source, causing tissue damage and body dysfunction. In addition to local injuries at the site of the shock, it can cause systemic damage, mainly cardiovascular and central nervous system injuries.

Severe cardiac arrest can lead to cardiac arrest. The causes of electric shock are generally electrical leakage, wire breakage, improper operation of live work, etc.

After an electric shock, the patient often appears in a brief coma, accounting for 20 50, and his consciousness can be restored. If there is a blow area in the head, in addition to a brief coma, he may also experience trance and excitement.

CT may reveal focal cerebral edema and secondary encephalomalacia. No local symptoms occurred in the non-functional area, and no sequelae were found in the brain. It should be said that there are not many electrical injuries at the moment due to the high risk of electrocution injuries.

The factors that determine the degree of electric shock injury are the magnitude of the current, the duration, the flow path, the resistance of the human body, the frequency of the current, and the condition of the human body.

The longer the electric shock time of the human body, the more serious the harm caused by the current to the human body, normally speaking, the current below the power frequency current of 15-20mA and the current below the DC current of 50mA is safe for the human body.

If an electric current circulates through the human heart and causes ventricular fibrillation, it may cause the heart to stop beating, so it is generally believed that when the current passes through the heart, spine or central nervous system, it is most harmful.

The damage caused by the electric current flowing through the human body has a lot to do with factors such as the gender, age, body, mental state of the human body, and generally speaking, women are more sensitive to electric currents than men, and children are more sensitive than adults.

There are six factors that affect the degree of electric shock injury, namely: the influence of the current size, the influence of the current duration, the influence of the current flow path, the influence of the human body resistance, the influence of the current frequency, and the influence of the human body.

1. The influence of the magnitude of the current.

The magnitude of the electric current directly affects the degree of damage caused by electric shock to the human body. Different electrical currents cause different reactions in the human body. According to the human body's response to electric currents, it is customary to divide electroshock currents into sensing currents, reactive currents, getting rid currents, and ventricular fibrillation currents.

2. The effect of the duration of the current.

The longer the human body is electrocuted, the more serious the thermal, chemical and physiological injuries caused by the electric current to the human body. If the electric shock is very long, even the power frequency current as small as 8 10mA can be fatal.

3. The influence of the current flow path.

The way of electric current flowing through the human body is also one of the important factors affecting the severity of electric shock in the human body. The danger is greatest when an electric current passes through the human heart, spine, or central nervous system.

4. The influence of human body resistance.

Under the action of a certain voltage, the current flowing through the human body is inversely proportional to the resistance of the human body. Therefore, human body resistance is another factor that affects the consequences of electric shock in the human body. Human body resistance is made up of surface resistance and volume resistance.

The surface resistance is the first resistance of the human body, which plays a major role in the resistance of the human body. Some research results show that the resistance of the human body is generally in the range of 1000 to 3000.

5. The influence of current frequency.

Studies have shown that the degree of harm of electric shock in the human body is related to the frequency of electric shock current. Generally, the current with a frequency of 25-300Hz is the most serious to the human body. The degree of damage to the human body caused by electric shock caused by currents lower or higher than this frequency range is significantly reduced.

For example, in the case of high frequencies, the human body is able to withstand the action of a greater current.

6. The influence of human condition.

The harmful effects of electric current on the human body have a lot to do with gender, age, physical and mental state.

The factors that determine the degree of electrocution injury are: the current flowing through the body, measured in milliamps. The way in which electric current flows through the body.

20 Power frequency currents above 25 mA are prone to serious consequences. When the current is less than a few milliampes, the current mainly causes ventricular fibrillation or suffocation, and the current of more than hundreds of milliamperes can cause coma, the heart immediately stops beating, and respiratory arrest, in addition to leaving fatal electrical injuries.

What to do if you are electrocuted

If you are electrocuted, turn off the main switch of the power supply first, the switch is far away, you can use an insulating tool to cut off the wire, and the cut wire should also be protected to prevent similar incidents from happening again.

If the electrified wire falls on the electrocuted person by mistake, you can use an insulating object, such as a dry wooden stick, to remove the wire, or you can use dry clothes, towels, ropes, etc., twist into a belt, put it on the electrocuted person, and pull the electrocuted person out.

For the first aid of the wounded, if the electrocuted person is conscious, but only has palpitation, shortness of breath, and paleness, the electrocuted person will lie down, rest quietly, do not walk, reduce the burden on the heart, and closely observe the patient's breathing and pulse.

If the electrocuted person is delirious, has a heartbeat and respiratory arrest, can be given mouth-to-mouth artificial respiration, if the heartbeat and breathing are stopped, immediately carry out cardiopulmonary resuscitation, rescue and timely call emergency personnel to come to the rescue, in order to carry out further life resuscitation.

According to the way electric shock accidents are constituted, electric shock accidents can be divided into electric shock and electric injury.

Electric shock is the most dangerous type of injury caused by electric current to the internal tissues of the human body, and the vast majority of electrocution fatalities (about 85% or more) are caused by electric shock.

Electrical injury is an injury caused to a person by the thermal, chemical, and mechanical effects of an electric current. Among the electric shock accidents, about 75 were pure electric injuries and electrical injuries (about 40 were electrical burns). Although about 85 percent of electrocution deaths are caused by electric shock, about 70 percent have an electrical component.

For the safety of professional electricians themselves, the prevention of electrical injuries is of greater importance.

Solution:

1. First aid for electric shock, first of all, make the person electrocuted quickly get out of the power supply, the sooner the better. Because the longer the current acts, the more damage it will take.

2. Disconnecting from the power supply is to disconnect the switch, knife switch or other circuit breaking equipment of the part of the live equipment that the electrocuted person is in contact with; or try to disengage the person from the live equipment. In the absence of power, the ambulance personnel must not only save people, but also pay attention to protecting themselves.

3. Before the electrocuted person is disconnected from the power supply, the ambulance personnel are not allowed to directly touch the injured with their hands, because there is a risk of electric shock.

4. If the person who is electrocuted is in a high place, he will fall from a high place after touching the power supply, so take precautions.

5. If the electrocuted person touches the low-voltage live equipment, the rescue personnel should try to quickly cut off the power supply, such as pulling the power supply, switching or knife switch, and pulling out the power plug.

6. If the electrocuted person touches the high-voltage live equipment, the rescuer should quickly cut off the power supply, or use insulating tools suitable for the voltage level (wear insulating gloves, wear insulating boots and use insulating rods) to free the electrocuted person. Ambulance personnel should pay attention to maintaining the necessary safety distance between themselves and the surrounding live parts during the rescue process.