When are smoke partitions required to have self-closing or automatic-closing doors?

Smoke partitions are required to have self-closing or automatic-closing doors upon smoke detection to ensure that smoke does not spread from one area to another, thereby maintaining a safe environment and providing a means for safe egress during a fire emergency. The primary function of these doors is to automatically close when smoke is detected, helping to contain smoke and toxins within a specific area and preventing them from infiltrating other parts of the building where occupants may be present. This is crucial for protecting life safety and minimizing property damage during a fire incident.

The other options do not align with the regulatory requirements for smoke partitions. Fire drills are preventive measures but do not necessitate that doors be self-closing; weekends are not relevant to fire safety protocols, and requiring doors to close only during a fire incident fails to account for the immediate response to smoke detection, which is vital for effective containment.