If a fire protection system is out of service for over ten hours, what is required?

When a fire protection system is out of service for over ten hours, the requirement to either evacuate the affected section or implement a fire watch is essential for maintaining safety. This procedure is critical because it addresses the increased risk of fire when the standard fire protection measures are not functioning.

A fire watch involves assigning trained personnel to monitor the area for any signs of smoke or fire, ensuring that they are ready to respond quickly. This measure helps mitigate the risks posed by the absence of automatic suppression systems, such as sprinklers, which are designed to detect and extinguish fires before they can spread.

The other options do not adequately protect safety or adhere to the best practices in fire protection management. Simply doing nothing does not comply with safety regulations and fails to consider the heightened risk associated with an inoperative system. Conducting a special training session, while beneficial, does not provide immediate safety measures during the outage. Lastly, notifying the fire marshal is important but, on its own, does not replace the need for active fire prevention measures in the affected area. Therefore, ensuring a fire watch or evacuating the area is the appropriate response to this situation.