Pre-discharge alarms must be pneumatically powered.

Pre-discharge alarms must be pneumatically powered.

• A. True
• B. False
• C. Not specified
• D. Only during maintenance

Answer: (A)

Pre-discharge alarms are intended to warn before a suppression agent is released, and in special-hazards installations they are designed to be pneumatically powered. Using pneumatic power keeps the alarm independent of electrical power, which is crucial in hazardous environments where electricity can pose ignition risks or fail during an incident. A pneumatic alarm can operate reliably when electric power is compromised and avoids electrical sparks, helping ensure the warning system functions when it’s most needed. Because this is a safety-critical function, it isn’t limited to maintenance; it should be active and able to warn occupants whenever the system is armed or in a detectable event.

Pre-discharge alarms are intended to warn before a suppression agent is released, and in special-hazards installations they are designed to be pneumatically powered. Using pneumatic power keeps the alarm independent of electrical power, which is crucial in hazardous environments where electricity can pose ignition risks or fail during an incident. A pneumatic alarm can operate reliably when electric power is compromised and avoids electrical sparks, helping ensure the warning system functions when it’s most needed. Because this is a safety-critical function, it isn’t limited to maintenance; it should be active and able to warn occupants whenever the system is armed or in a detectable event.