As a worker moves farther away from an arc source, what happens to incident energy?

When a worker moves farther away from an arc source, the incident energy decreases due to the principles of energy dispersion and the inverse-square law. This law states that as the distance from a point source increases, the intensity of the energy received diminishes proportionally to the square of the distance. In the case of an electric arc, as the distance increases, the available energy that reaches a specific point in space will spread out over a larger area, resulting in decreased intensity or incident energy. Thus, the farther a worker moves from the arc source, the less thermal energy they will be exposed to, enhancing their safety and reducing the risk of injury from electric arc hazards.