-
1) Low-voltage electric shock. Low-voltage electric shocks that occur on user lighting equipment are the most common. If the insulation of the entrance line is damaged (failure to be repaired in time), the wire appliance used to put clothes on the clothes is electrified, the wet hand twisting the bulb accidentally touches the metal lamp port, and the insulation of household appliances is damaged and electrified, which is easy to cause low-voltage electric shock.
2) Induction of electric shock. Working on electrical equipment and power lines, operation and maintenance personnel do not fail to cut off power in accordance with the requirements of the "Safety Regulations" (in violation of safety operation regulations), and take short-circuit grounding measures for power inspection, or do not install grounding wires between some power-off equipment and live equipment, etc., are prone to induction and electric shock.
3) Mistakenly boarding live equipment. Electrical workers habitually violate regulations, walk at the wrong interval or hear or see the wrong thing without permission or supervision, and mistakenly board the live equipment.
4) Mistakenly boarding the live line tower. This type of electrocution is a typical consequence of illegal operations. It mostly occurs during maintenance operations or maintenance personnel accident inspections, finds defects, violates the provisions of the "Safety Regulations", looks at the wrong pole position and pole number, is not vigilant when boarding the pole, does not check the electrical grounding, and electrocution occurs when contacting the equipment.
5) Accidentally touching live equipment and wires. Mainly the operation, maintenance, and test personnel of the electrical equipment, the safety measures in the operation are not perfect, such as the temporary fence or insulating baffle should be set up but not set, the insulating sleeve should be used but not adopted, the supervision is not in place during the work or the electric shock occurs when the guardian is working.
6) Electrocution due to insufficient safety distance from live bodies or live equipment. The electrical staff is not very clear about the safety distance that should be maintained between the live equipment, and does not conscientiously perform the work ticket system and the safety guardianship system, resulting in the discharge of the maintenance equipment and people.
7) Personal electrocution that occurs during live work. The main reason is that the technical and safety operation regulations are not implemented, and other reasons, and the error causes electric shock.
8) Electric shock caused by mispower transmission and mischarging. This type of electric shock is a typical misoperation. Electrical personnel did not implement the provisions of the "Safety Regulations", the dispatcher issued the order by mistake, the attendant looked at the wrong equipment, walked the wrong interval, missed the line switch, misoperated to close the maintenance equipment and sent power, and the work on the secondary equipment should be powered off but not broken, and the electrical operation personnel did not strictly accept, resulting in electric shock to others.
9) Return power supply electrocution. This type of electric shock is mainly due to incomplete power outages at work. For example:
The work of the primary circuit of the voltage transformer is reversed by the secondary circuit (the fuse is not broken); Ring network lines, which can obtain power from multiple ports, can still send power to maintenance equipment by one party due to errors in the organization of power outages.
10) The equipment shell is not grounded and causes electric shock. This mainly refers to the power machinery rotating equipment, due to vibration to make the insulation damage shell live, or imperfect grounding, exasperation, virtual welding, etc., the human body will suffer voltage injury when it comes into contact with the equipment shell, which is the most typical kind of low-voltage electric shock.
-
Which of the following is an extraordinarily round reed point for an electric shock accident?
a.Electrocution can result in injury or even death.
b.The short head cavity nucleus has the potential to lead to ** and fire.
c.Arcs or sparks can ignite ignited items or materials with high quality.
d.The property damage is not large, so don't worry too much.
e.An overload on an appliance can cause it to be damaged, short-circuited or burned.
Correct answer: abce
The safety measures to prevent welding contact accidents are as follows: >>>More
Traffic accidents have nothing to do with drinking. Traffic accidents occur only in relation to the frequency of traffic, and if there are no people or cars on the road, there will be no traffic accidents. This can only be achieved through a comprehensive rectification of the whole society. >>>More
The death of a traffic accident in the factory area is a traffic accident and is handled by the traffic police department. >>>More
If the employer implements contracted operation, the liability for work-related injury insurance shall be borne by the unit where the employee's labor relationship is located. >>>More
The first crash was on December 16, 1996, which many investors called Black Monday. >>>More