Test your knowledge of NFPA 72 2016 secondary power requirements.
Created by: Thomas P. Hammerberg
1. Sealed lead-acid batteries must be replaced ________.
A. Within 5 years of the installation date
B. Within 5 years of the manufacture date
C. When the manufacturer recommends
D. When the voltage or current drops below the manufacturer's recommendation
E. When either C or D apply
2. The battery calculation safety margin for batteries used for fire alarm secondary power ________ percent.
3. A generator used for providing secondary power for a fire alarm system must meet the requirements of NFPA 110 for a Type 10, Class 24, Level 1 system. Type 10 requires ________.
A. 10 minutes of standby time
B. 10 minutes transfer (to standby) time
C. 10 hours of available fuel
D. 10 hours of standby time
4. Secondary power capacity for shared equipment shall be permitted to have a capacity of ________ hours where acceptable to the authority having jurisdiction and where a risk analysis is performed to ensure acceptable availability is provided.
5. While operating on secondary power, audio amplifier monitoring shall be required only when an alarm is present.
6. The secondary power supply for in-building mass notification systems shall be capable of operating the system under quiescent load for a minimum of 24 hours and then shall be capable of operating the system during emergency conditions for a period of ________ minutes at maximum connected load.
7. All fire alarm systems require batteries as part or all of its secondary power.
8. Fire alarm systems for supervising stations require batteries as part or all of the secondary power.
9. Batteries are ________ if they are offline and waiting to be put under load in the event of a loss of power.
10. When performing charger tests for sealed lead-acid batteries, with the batteries fully charged and connected to the charger, measure the voltage across the batteries with a voltmeter. Verify the voltage is ________ volts per cell, ±0.02 volts at 77°F (25°C) or as specified by the manufacturer.