What is the required capacity for a central station system to operate under quiescent load?

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The required capacity for a central station system to operate under quiescent load is 24 hours. This duration is essential to ensure that the system remains operational during a power outage or when the primary power source is unavailable. A 24-hour capacity allows the system to continue monitoring and responding to alarms or emergencies without interruption, which is a critical component of fire safety and emergency management.

This timeframe is standardized across many guidelines and regulations because it strikes a balance between ensuring sufficient operational time while being feasible regarding resource allocation and system design. A system that only supports shorter durations may not be reliable enough for the critical functions it serves in protecting lives and property. Conversely, options like 30, 48, or even 60 hours extend beyond typical requirements, leading to possible inefficiencies in system design and use of resources, which may not be justified compared to the recognized standard.

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