How many categories can electrical accidents be divided into? What form of electrical energy is caus

According to the form of disasters, electrical accidents can be divided into personal accidents, equipment accidents, electrical fires and accidents; According to the circuit condition at the time of the accident, it can be divided into short circuit accident, disconnection accident, grounding accident, leakage accident, etc.; According to the severity of the accident, it can be divided into extraordinarily large accidents, major accidents, general accidents, etc.; According to the degree of injury, it can be divided into three types: death, serious injury, and minor injury.

If according to the basic cause of the accident, electrical accidents can be divided into the following categories:

Electrocution accidents. Personal injury accidents caused by electric current flowing through the human body when the person touches the charged body (or is too close to the high-voltage charged body). Electrocution accidents are caused by the application of electric current energy to the human body.

Electric shock can be divided into three types: single-phase electric shock, two-phase electric shock and step voltage electric shock.

Lightning and static electricity accidents. Positive and negative charges that are temporarily out of balance within a local range release the energy of the charge under certain conditions, causing harm to the human body or other accidents caused by it. Lightning strikes can often destroy buildings, injure people and animals, and may also cause disasters; The biggest threat of electrostatic discharge is a disaster or accident, which can also cause harm to the human body.

RF damage. The damage caused to the human body by the energy of the electromagnetic field is also known as the electromagnetic field injury. Under the action of high-frequency electromagnetic fields, the human body will absorb radiation energy, and various organs will be damaged to varying degrees, thus causing various diseases.

In addition to high-frequency electromagnetic fields, ultra-high voltage high-intensity power-frequency electromagnetic fields can also cause certain damage to the human body.

Faulty circuits. Accidents caused by loss of control in the process of power transmission, distribution and conversion. Faulty wiring and equipment not only threaten personal safety, but can also cause serious damage to electrical equipment.

Of the above four types of electrical accidents, electric shock accidents are the most common. But no matter what kind of accident, it is caused by the improper release or transfer of energy from various types of currents, charges, and electromagnetic fields.

Electrical accidents can be divided into electric shock accidents, electrostatic accidents, lightning disasters, and radio frequency radiation.

hazards, circuit faults and other five categories.

1. Electric shock accident. Electric shock accidents are caused by the energy of electric currents, which are the injuries of electric currents to the human body.

2. Electrostatic accidents. Static electricity refers to the relative movement of certain materials during the production process and during the operation of the staff.

A relatively stationary positive charge that accumulates due to contact and separation.

and negative charge. 3. Lightning disaster. Thunder and lightning are atmospheric electricity, charges that are separated and accumulated by the forces of nature, and positive and negative charges that are temporarily out of balance on a local scale.

Lightning discharge has the characteristics of high current and high voltage, and its energy release may produce great destructive force. In addition to destroying facilities and equipment, lightning strikes may also directly injure people and animals, and may also cause disasters.

4. Radio frequency radiation hazards. Radio frequency radiation hazards are electromagnetic field injuries. The human body absorbs radiant energy under the action of high-frequency electromagnetic fields, which makes the central nervous system of the person.

Components such as the cardiovascular system can be damaged to varying degrees. RF radiation hazards also manifest themselves as induced discharges.

5. Circuit failure. Circuit failures are caused by loss of control over the transfer, distribution, and conversion of electrical energy. Broken wires, short circuits, grounding, leakage, misclosing, mis-dropping, electrical equipment or electrical components.

Damage, etc., are all faults in the circuit. Electrical wiring or electrical faults can affect personal safety.

According to the basic elements that constitute an accident, electrical accidents can be divided into five categories: electric shock accidents, electrostatic accidents, lightning disasters, radio frequency hazards, and circuit failures.

1. Electric shock accidents are caused by the energy of electric current. Electric shock is the injury of electric current to the human body. The injury of electric current to the human body can be divided into electric shock and electric injury. The vast majority of electrocution** accidents involve an electric shock.

2. Electrostatic accidents, relatively static positive and negative charges accumulated due to the relative movement, contact and separation of some materials in the production process and staff operation. Electrostatic voltages can be as high as tens of thousands or even hundreds of thousands of volts, which can generate electrostatic sparks in the field. In fires and hazardous locations, electrostatic sparks are a very dangerous factor.

3. Lightning disasters are atmospheric electricity. Lightning discharge has the characteristics of high current and high voltage. The release of its energy can be extremely destructive. In addition to destroying facilities and equipment, lightning strikes may also directly injure people and animals, and may also cause disasters.

4. Radio frequency radiation hazard is electromagnetic field injury. The human body absorbs radiation energy under the action of high-frequency electromagnetic fields, so that the central nervous system, cardiovascular system and other parts of the human body will be damaged to varying degrees. RF radiation hazards also manifest themselves as induced discharges.

5. The circuit failure is caused by the loss of control of power transmission, distribution and conversion. Circuit faults, such as disconnection, short circuit, grounding, leakage, misclosing, mis-dropping, damage to electrical equipment or electrical components, etc. Electrical wiring or electrical faults can affect personal safety.

Answer: a, c, d, e

According to the form of electric energy, electrical accidents can be divided into electric shock accidents, thunder spring strike accidents, electrostatic accidents, electromagnetic radiation accidents and circuit accidents.

Summary. Hello, dear, power accidents can be divided into personal accidents, equipment accidents, electrical fires and accidents.

Hello, dear, power accidents can be divided into personal accidents, equipment accidents, electrical fires and accidents.

Electricity disasters are divided into:

1. Sudden disasters in the power system caused by natural disasters2. Sudden disasters and disasters in the power system caused by damage to power facilities, self-failure or defects in Bizhou. 3. Sudden disasters in the power system caused by personnel negligence.

The minimum rated voltage at the time of the implementation of live line electrical work is:

The minimum voltage should generally not be lower than the rated voltage (90%)

The level of power safety accidents is divided as follows: 1. An accident causes an unplanned outage of more than 2 units and causes a power outage of the whole plant; 2. The power generation equipment needs to be shut down for treatment or the planned maintenance of the unit cannot be completed on time, so that the power generation equipment above kv that has been stopped for more than 168 hours has a malignant electrical misoperation. Legal basis:

Article 3 of the Regulations on the Reporting, Investigation and Handling of Production Safety Accidents is generally divided into the following levels according to the personnel or direct economic losses caused by production safety accidents: (1) Particularly major accidents, which refer to accidents that cause more than 30 deaths, or serious injuries to more than 100 people (including acute industrial poisoning, the same below), or direct economic losses of more than 100 million yuan; (2) "Major accidents" refers to accidents that cause the death of between 10 and 30 people, or the serious injury of between 50 and 100 people, or the direct economic losses of between 50 million and 100 million yuan; (3) "Relatively large accidents" refers to accidents that cause the death of 3 to 10 people, or the serious injury of 10 to 50 people, or the direct economic losses of between 10 million and 50 million yuan; (4) "General accidents" refer to accidents that cause the death of less than 3 people, or the serious injury of less than 10 people, or the direct economic loss of less than 10 million yuan.