What is an electrical fire, electric shock, electrical explosion?

Electrical fire: short-circuit wires caused by line heating fire, electrical wiring loose under the action of high current caused by heating fire, overloaded equipment operation caused by heating fire.

Electrocution: the human body mistakenly touching a live wire or leakage of electrical appliances caused by electric shock.

Electrical explosion: the gas concentration in the chemical site to reach a certain point, when the open flame will cause an explosion.