Testing of all circuits extending from central station must be completed at least once every how many hours?

Testing of all circuits extending from central station must be completed at least once every how many hours?

• A. 12 Hours
• B. 24 Hours
• C. 48 Hours
• D. 72 Hours

Answer: (B)

Regularly verify that the signaling path from the central station to all monitored circuits is functioning. For central-station fire alarm systems, every circuit that extends from the central station must be tested at least once every 24 hours to ensure the central station reliably receives alarms and supervision signals. Daily testing quickly reveals faults in wiring, devices, or the communication line, so issues don’t go undetected for long and response times stay reliable. While some tests can be performed by initiating signals through the circuit or following a predefined procedure, extending the interval beyond 24 hours increases the chance that a fault remains unnoticed; shorter intervals are not typically required unless a specific requirement applies.

Regularly verify that the signaling path from the central station to all monitored circuits is functioning. For central-station fire alarm systems, every circuit that extends from the central station must be tested at least once every 24 hours to ensure the central station reliably receives alarms and supervision signals. Daily testing quickly reveals faults in wiring, devices, or the communication line, so issues don’t go undetected for long and response times stay reliable. While some tests can be performed by initiating signals through the circuit or following a predefined procedure, extending the interval beyond 24 hours increases the chance that a fault remains unnoticed; shorter intervals are not typically required unless a specific requirement applies.