What is the maximum permissible delay for power supply failure signal transmission in supervising station alarm systems?

What is the maximum permissible delay for power supply failure signal transmission in supervising station alarm systems?

• A. 15 minutes
• B. 10 minutes
• C. 0 minutes
• D. 5 minutes

Answer: (B)

The main idea is how quickly a supervising station must be notified when the fire alarm system’s power is in trouble. When the system loses power or its power supply is otherwise fail, this creates a trouble condition that must be reported to the central monitoring station. The standard allows that such power-supply trouble signals be transmitted within ten minutes. This window strikes a balance: it ensures the central station learns of the problem promptly so responders can be alerted, but it also accommodates normal communication and diagnostic processes within the system without generating unnecessary alarms from transient issues. So, ten minutes is the maximum permissible delay for sending that power-supply failure trouble signal to the supervising station.

The main idea is how quickly a supervising station must be notified when the fire alarm system’s power is in trouble. When the system loses power or its power supply is otherwise fail, this creates a trouble condition that must be reported to the central monitoring station. The standard allows that such power-supply trouble signals be transmitted within ten minutes. This window strikes a balance: it ensures the central station learns of the problem promptly so responders can be alerted, but it also accommodates normal communication and diagnostic processes within the system without generating unnecessary alarms from transient issues. So, ten minutes is the maximum permissible delay for sending that power-supply failure trouble signal to the supervising station.