Which system is designed to prevent accidental discharge of water during false alarms?

The preaction system is specifically designed to prevent accidental discharge of water during false alarms, making it the most appropriate choice. This system utilizes a two-step activation process, which requires both the detection of heat or smoke and the opening of a sprinkler head to release water. As a result, the preaction system first fills the piping with air or inert gas, and water is only allowed to flow into the system when the fire alarm is triggered and the appropriate conditions are met. This helps mitigate the risk of water discharge due to a false alarm, ensuring that water is only released when a legitimate fire condition has been confirmed.

Wet systems, on the other hand, are filled with water at all times and can lead to unintentional discharges if the alarm is triggered, which does not prevent false alarms from causing water damage. Dry systems are also not designed to differentiate between false alarms and actual fire events; they hold pressurized air in the piping until a sprinkler head opens. Deluge systems, which are activated by a heat or smoke detection system and release large quantities of water simultaneously through open sprinkler heads, are designed for high-hazard areas but also do not prevent accidental discharges during false alarms. Thus, the functionality of the preaction system stands out