An arc flash is caused by current flowing between two conducting surfaces and most commonly occurs in switchgear as a result of faulty equipment or poor work practices. Left unchecked, arc flashes release a tremendous amount of energy in a high-pressure blast of heat and debris, which can result in serious injuries to workers and damage to equipmen [..]

 - An arcing fault is the flow of current through the air between phase conductors or phase and neutral or ground. An arcing fault can release tremendous amounts of concentrated radiant energy at the point of the arcing in a small fraction of a second result

Arc flash is the passage of current through air between phase conductors or phase conductors and neutral and ground. This is initiated by a flashover, or from the introduction of some conductive material. Temperatures from an arc flash can reach 35,000 degrees Fahrenheit. Exposure to an arc flash can severely burn skin and ignite clothing.

A dangerous rapid release of energy from an electrical fault that overcomes the resistance of air, at temperatures high enough to vaporize conductors and create an arc blast of molten metal and expand [..]

A type of electrical explosion (essentially a short circuit through the air) that can cause substantial damage, fire, or injury. In an arc flash incident, an enormous amount of concentrated energy explodes outward from electrical equipment.

A type of electrical explosion that results from a low-impedance connection to ground or another voltage phase in an electrical system.