What requirement does NFPA 72 impose for fire safety during renovation activities?

NFPA 72 emphasizes maintaining the operational integrity of fire alarm systems during renovation activities to ensure ongoing fire protection for buildings and their occupants. The requirement for temporary measures to keep fire alarm systems operational means that, even while renovations are taking place, the fire alarm system must remain functional. This is crucial because it allows for the immediate detection and notification of any fire emergencies that may arise during construction or renovation work, protecting lives and property.

Temporary measures can include using portable fire alarms or ensuring that existing systems are not fully deactivated when parts of the system are affected by renovation work. This continuity of operation minimizes the risks associated with incomplete fire protection and ensures compliance with safety standards.

The other choices fail to align with the intent of NFPA 72 to provide uninterrupted safety measures during renovation, as they imply a disregard for the operational capacity of the fire alarm systems, which can result in increased risk during such activities.