What percentage of reported cases have only one or two sprinkler heads activated?

The answer indicates that 90% of reported cases involve only one or two sprinkler heads being activated. This statistic highlights the efficiency and effectiveness of sprinkler systems in controlling and mitigating fires. The operational design of these systems allows them to target the immediate area of the fire, thus often minimizing water damage and containing the fire before it spreads.

In practice, when a fire occurs, it is typically contained to a small area, and as a result, only the sprinkler heads near the fire are activated. Most fires do not require a large number of heads to respond to effectively manage the situation. This phenomenon emphasizes the importance of properly designing fire protection systems and the reliability of sprinklers as a crucial element in fire safety strategies. The high percentage shows that in the vast majority of instances, sprinkler systems are capable of quickly addressing the fire, proving their value in fire safety within structures.