Additional power supplies provided for equipment essential to system operation located away from the main control shall meet the same requirements as the main primary and secondary power supplies.

Additional power supplies provided for equipment essential to system operation located away from the main control shall meet the same requirements as the main primary and secondary power supplies.

• A. They must be grounded separately
• B. They must be kept on a separate circuit only
• C. They are exempt from this requirement
• D. The same requirements as the main primary and secondary power supplies

Answer: (D)

The key idea is that any power source feeding equipment essential to keeping the fire alarm system operating, even when it’s located away from the main control panel, must be held to the same standards as the main primary and secondary power supplies. This ensures that critical components receive power with the same reliability, monitoring, and fault protection as the central system, no matter where they’re installed. By applying identical requirements—such as proper redundancy or battery backup, supervision of power, appropriate grounding and fault protection, and correct circuit design—the system maintains life-safety functionality during power disturbances or failures. If away-from-control equipment were allowed to use looser standards, a power issue could render that essential gear inoperative, compromising overall system performance when it matters most. The rule therefore enforces consistency across all essential power sources, not exemptions or partial limitations.

The key idea is that any power source feeding equipment essential to keeping the fire alarm system operating, even when it’s located away from the main control panel, must be held to the same standards as the main primary and secondary power supplies. This ensures that critical components receive power with the same reliability, monitoring, and fault protection as the central system, no matter where they’re installed. By applying identical requirements—such as proper redundancy or battery backup, supervision of power, appropriate grounding and fault protection, and correct circuit design—the system maintains life-safety functionality during power disturbances or failures. If away-from-control equipment were allowed to use looser standards, a power issue could render that essential gear inoperative, compromising overall system performance when it matters most. The rule therefore enforces consistency across all essential power sources, not exemptions or partial limitations.