(1) Lack of electrical safety knowledge, flying kites near high-voltage lines, climbing high-voltage poles to dig out bird's nests; picking up live wires with hands without power outage after low-voltage overhead lines are disconnected; touching live wires with hands in the dark night body; touch the damaged rubber cover of the knife gate with your hands.
(2) Violating operating procedures, connecting lines or electrical equipment while powered without taking necessary safety measures; touching damaged equipment or wires; mistakenly boarding live equipment; connecting lighting fixtures while powered; repairing power tools while powered on ; Live mobile electrical equipment; Use wet hands to twist light bulbs, etc.
(3) The equipment is unqualified and the safety distance is not enough; the grounding resistance of the two-wire-one-ground system is too large; the grounding wire is unqualified or disconnected; the insulation damaged wire is exposed, etc.
(4) The equipment is in disrepair, and strong winds cut off the lines or knocked down the poles and they were not repaired in time; the bakelite of the rubber cover knife gate was damaged and was not changed in time; the wires of the motor were damaged, leaving the casing charged for a long time; the porcelain bottle was damaged, causing the The phase wire and the pull wire are short-circuited, and the equipment shell is charged.
(5) Other accidental reasons, walking at night and touching live wires broken on the ground. What first aid measures should be taken in case of electric shock? When an electric shock accident occurs, while ensuring the safety of the rescuer himself, he must first try to quickly remove the electric shock victim from the power supply, and then carry out the following emergency repair work.
(1) Take off tight clothes that hinder the electrocuted person’s breathing.
(2) Check the mouth of the person who received an electric shock, clean the mucus in the mouth, and remove dentures if there are any.
(3) Carry out rescue on the spot immediately. If breathing stops, use mouth-to-mouth artificial respiration. If the heart stops beating or trembles irregularly, artificial chest compression can be used to rescue. It must not be interrupted without reason.
If there is a second person present at the scene in addition to the rescuer, the following work should be carried out immediately:
1) Provide first aid tools and equipment.
2) Dissuade idle personnel from the scene.
3) Keep the site with adequate lighting and air circulation.
4) Report to the leader and ask a doctor to come for rescue.
Experimental research and statistics show that if treatment starts 1 minute after the electric shock, 90% of the people can be saved; if the treatment starts 6 minutes after the electric shock, there is only a 10% chance of saving; If you start resuscitation 12 minutes after the electric shock, the possibility of resuscitation is extremely small. Therefore, when you find someone getting electrocuted, you should race against time and use all possible methods.