Which statement best defines arc flash hazard?

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An arc flash hazard is a sudden release of electrical energy through an arcing fault, producing an extremely bright flash, intense heat, and a pressure wave. That combination can cause severe burns, eye injury from the bright flash, and blast injuries from the pressure and debris. This is why the description emphasizing a sudden release of electrical energy causing extreme heat, light, and pressure—with the potential for severe burns—is the best answer. It goes beyond a simple jolt, noise, or smoke, and captures the full danger arc flash poses to people and equipment.