What is the minimum elevated temperature rating for smoke damper leakage as specified?

The minimum elevated temperature rating for smoke damper leakage is specified as 250 degrees. This standard is in place to ensure that smoke dampers can effectively perform their function during a fire scenario. The 250 degrees designation indicates the temperature at which the damper should still maintain its integrity and performance characteristics, preventing the passage of smoke through areas that need to be protected.

This temperature rating reflects the need for dampers to function reliably in high-temperature environments, as they are critical components in fire and smoke control systems. They are designed to close off the passage of smoke and possibly flames, thus protecting other areas of a building and aiding in safe evacuation and limiting property damage during a fire.

Understanding this rating is crucial for HVAC professionals and code inspectors, as it ensures compliance with safety standards outlined in the North Carolina Mechanical Code and enhances overall fire safety in building design.