Journeyman Electrician Practice Exam

In personnel doors intended for exit from an equipment room housing electrical equipment, what is required for doors if the equipment is rated 800 amperes or more?

1. Doors must close automatically

2. They must open inward

3. They must open in the direction of egress

4. They can swing freely

The correct answer is: They must open in the direction of egress

The requirement for doors in personnel exits from equipment rooms housing electrical equipment rated at 800 amperes or more is that they must open in the direction of egress. This is primarily for safety reasons. When there is a need to exit quickly, especially in the case of an emergency or when panic may occur, it is crucial that doors open in the direction of the exit route, allowing for a more efficient and unimpeded escape. This considerations addresses the potential hazards that might be present in such high-capacity environments, where the risk of electrical fires, equipment failure, or other hazards may necessitate a rapid departure from the space. By ensuring doors open outward, against the path of egress, it also prevents blockage in case of an emergency where multiple personnel may need to evacuate simultaneously. Overall, this requirement enhances safety measures within electrical equipment rooms and is aligned with building codes and safety standards focused on minimizing risks during emergencies.