Can I read New UL 555S Fire Damper Standards on EtoBox?

New UL 555S Fire Damper Standards by Durga is a document available to read on EtoBox.

What is New UL 555S Fire Damper Standards about?

New UL Test Standards for Dynamic Fire Dampers, Smoke Dampers, and Combination Fire/Smoke Dampers will take effect on July 1, 2002, requiring more stringent testing for UL approval. The revised standards include specific requirements for air velocities, operating static pressure, and elevated temperatures. Contractors and specifiers should review their projects and consult with manufacturers regarding the impact of these changes on damper availability and installation requirements.

Author

Durga

Language

EN