Lightning accidents, in contrast to other high-voltage accidents, are characterized by an extremely high current strength and a very short exposure duration. Injuries result from the impact of electrical energy, high temperatures, mechanical energy in the form of explosive expansion of air after heating, or bright light. The electrical energy of the lightning can be transferred to a person or groups of people in various ways and can also lead to injuries in the form of a magnetic field. Numerous accidents involve a combination of these different mechanisms.