In the context of electrical work, what does the term “arc flash” refer to?

The term “arc flash” specifically refers to a dangerous release of energy caused by an electric arc. This phenomenon occurs when electrical current passes through the air between ungrounded conductors or between a conductor and the ground. During this event, an intense flash of light and heat is produced, which can result in severe burns, explosions, and other hazards for workers in proximity to the arc. The energy released in an arc flash can lead to equipment damage as well as serious injury or even death to individuals working in or near that electrical environment. Understanding arc flash is crucial for implementing safety measures and protective equipment, thus making it a vital concept in the realm of electrical work.