Which type of fire alarm system is described by requiring confirmation of smoke detection before alarm activation?

The verification system is characterized by its unique approach to fire alarm activation, which involves confirming smoke detection before the actual alarm is triggered. This is particularly important in environments where false alarms could lead to unnecessary evacuations or disruptions. In a verification system, the alarm will typically require a secondary indication of smoke presence, such as multiple detectors being activated within a certain time frame or a specific protocol that includes a manual check.

This method helps to reduce the likelihood of nuisance alarms, thereby ensuring that when the alarm does sound, it is more likely to indicate a genuine fire situation. This contrasts with other systems that may activate an alarm immediately upon detecting smoke, potentially leading to false alarms if conditions such as dust or steam are present.

In this context, the verification system is essential for balancing safety with reducing false alarm rates, making it a preferred choice in many applications where reliability is crucial.