Which of the following are considered to be critical electrical loads?

• A. Egress lighting and fire pump
• B. Elevator motor
• C. Conference room lighting
• D. Outdoor signage

Answer: (A)

Critical electrical loads are the systems that must stay energized during a power outage to protect lives and property. Egress lighting provides a safe path to exits, and the fire pump maintains sprinkler water pressure, both essential for safe evacuation and active fire protection. Because of their direct impact on safety during emergencies, these systems are wired to emergency power sources and must operate when the normal supply is lost.

An elevator motor, while important for accessibility under normal conditions, is not typically treated as a life-safety critical load during an outage; its operation is often restricted or controlled during emergencies. Conference room lighting and outdoor signage do not affect immediate life safety or firefighting operations, so they are not considered critical loads in the same sense.