Statistics show that the main causes of electrocution accidents are as follows:
1, lack of knowledge of electrical safety, flying kites near high-voltage lines, climbing high-voltage poles to pull out the bird's nest; low-voltage overhead line breaks without stopping the power to pick up the fire line with their hands; blackout wiring with electric hands touching the electrically charged body; touching the broken rubber-covered knife gate with their hands.
2, violation of operating procedures, electric connection lines or electrical equipment without taking the necessary safety measures; touching the destruction of equipment or wires; mistakenly boarding charged equipment; electric connection lighting; electric repair of power tools; electric movement of electrical equipment; with wet hands screwing bulbs and so on.
3, unqualified equipment, safety distance is not enough; two-wire and one-earth system grounding resistance is too large; grounding wire is unqualified or grounding wire is disconnected; insulation damage conductor exposed.
4, equipment disrepair, high winds blowing off the line or scrape down the pole is not repaired in a timely manner; glue cover the knife gate of the glue wood damage is not changed in a timely manner; motor wire damage, so that the shell of the long term charged; vase damage, so that the phase line and the pull line short, the shell of the equipment is charged.
5, other accidental reasons, walking at night to touch the ground broken live wire.
The causes of electrocution accidents, mainly the lack of knowledge of safe use of electricity is an important factor in the occurrence of electric shock injuries. There are subjective and objective factors.
1, subjective factors, in the work did not strictly implement the safety procedures and safety of electricity system, daily life lack of knowledge of electricity or negligence.
2, objective factors, high temperature, high humidity places, corrosive chemical workshop, thunderstorm season, etc., so that the electrical insulation is reduced, easy to leakage. Electrical appliances and lines without regular inspection and maintenance to produce leakage or storms scrape down poles, wire breakage fall, fire when the wire burns and the power grid, lightning strikes, and so on.