When operating a medium voltage circuit breaker, where is the safest position to stand?

Standing on the hinged side of the cubical when operating a medium voltage circuit breaker is the safest position. This stance allows the operator to maintain a safe distance from potential hazards while still being able to access the breaker controls. The hinged side typically provides a means of escape should something go wrong, as the door can open away from the operator, minimizing exposure to any arc flash or electrical faults that could occur.

Furthermore, being on the hinged side means that the operator can quickly move away from the cubical if necessary, further enhancing safety. It also ensures that they are not in line with the energized components, thus reducing the risk of injury from electrical arcs or blowouts that may happen during operation.

While options such as standing in front of the control panel may seem feasible, this position places the operator in closer proximity to potential hazards. Being near the back of the cubical could also pose risks depending on the configuration of the equipment. Therefore, the hinged side is emphasized as the optimal choice for minimizing danger while maintaining access to the necessary controls.