When fire pumps are monitored in conjunction with a building fire alarm system, the pump running signal may be classified as what type of signal?

When a fire pump is monitored in conjunction with a building fire alarm system, the pump running signal is classified as a supervisory or alarm signal.

The supervisory circuit is designed to monitor the operational status of fire protection equipment, including fire pumps. This is important as it ensures that the fire pump is functioning as expected when needed. If the fire pump is running, it indicates that the system is actively engaged in providing water supply to fight a fire, which can serve as an alarm for personnel that the system is in operation.

Classifying the pump running signal as supervisory emphasizes its role in monitoring the functionality of critical fire protection equipment. It indicates that the system is in a state of readiness but does not, in itself, signal a fire event. Thus, it plays a dual role when integrated with a fire alarm system, both indicating an operational status and fulfilling alarm criteria for monitoring and safety assessments.