What is the definition of the arc flash boundary?

The arc flash boundary is defined as the point at which a person could receive a second-degree burn if an arc flash event occurs. It represents a crucial safety measure in electrical work, as it indicates the maximum distance one can be from energized electrical equipment without the risk of serious injury during an arc flash incident. Understanding this boundary helps electricians and safety personnel determine safe working distances and implement appropriate protective measures when working near live parts. This ensures awareness of the hazards associated with high electrical energy and promotes practices that minimize the risk of exposure to arc flash events.