Quiz: Fire Alarm Power Supplies

1. All new fire alarm systems are required to use batteries for all or part of secondary power.

2. Engine-driven generators used to provide secondary power for a protected premises fire alarm system or an emergency communications system shall comply with NFPA 110 Chapter 4, requirements for a Type ______ system.

3. A Type 10 system requires the system to ______.

4. A Class 24 system requires the system to ______.

5. Installation of engine-driven generators used to provide secondary power for a protected premises fire alarm system or an emergency communications system shall be in accordance with NFPA 70, Article ______.

6. Where survivability of circuits is required by another section of the code, equal protection shall be provided for power supply circuits.

7. The ______% safety margin is intended to address normal aging effects on battery capacity.

8. ______ batteries are fully charged and connected across the output of the rectifiers to smooth the output and to serve as a standby source of power in the event of a loss of line power.

9. Battery-charging equipment shall be provided to recharge batteries within ______ hours after fully charged batteries have been subject to a single discharge cycle.

10. Where a circuit breaker is the disconnecting means, an approved breaker locking device shall be installed.