What protective features are commonly included in NFPA 20 fire pump controllers?

What protective features are commonly included in NFPA 20 fire pump controllers?

• A. Temperature probes only
• B. Only a single status light
• C. Alarms for low suction, high discharge, pump running, and automatic start/stop interlocks; status indicators
• D. No protective features

Answer: (C)

Protective features in NFPA 20 fire pump controllers focus on monitoring critical conditions and providing clear alarms and automatic control to safeguard the pump system. They typically include alarms for low suction to warn of potential loss of prime, alarms for high discharge to prevent overpressure, an alarm indicating when the pump is actually running, and automatic start/stop interlocks to ensure safe automatic operation. In addition, status indicators let operators quickly confirm the system state. Temperature probes alone or a single status light don’t offer the required breadth of protection, and having no protective features would leave the system vulnerable. Therefore, the combination of these alarms, interlocks, and indicators is the standard protective package.

Protective features in NFPA 20 fire pump controllers focus on monitoring critical conditions and providing clear alarms and automatic control to safeguard the pump system. They typically include alarms for low suction to warn of potential loss of prime, alarms for high discharge to prevent overpressure, an alarm indicating when the pump is actually running, and automatic start/stop interlocks to ensure safe automatic operation. In addition, status indicators let operators quickly confirm the system state. Temperature probes alone or a single status light don’t offer the required breadth of protection, and having no protective features would leave the system vulnerable. Therefore, the combination of these alarms, interlocks, and indicators is the standard protective package.