A lot can happen in two seconds. What may seem like the blink of an eye can feel like an eternity, especially during an arc flash. When calculating the incident energy as part of an arc flash study, sometimes the IEEE 1584 equations can produce unusually large values.
This article expands on “Control the Risk” (ELECTRICAL CONTRACTOR, March 2015). It addresses six key areas in the risk-control hierarchy and how each can be used to reduce the risk associated with the arc flash hazard.