UL (Underwriters Laboratories) has a section titled 864. ANSI/UL-864 is the section that covers "Standards for Control Units and Accessories for Fire Alarms". ANSI/UL 864 is currently on its 9th revision. Published on September 30, 2003 with a current effective date of December 31, 2008, the new edition incorporates approximately 300 changes, including 100 pages of new requirements from the previous edition.With that said, UUKL is a separate listing category under UL 864. Control devices used in smoke control systems have a UUKL listing. UL's UUKL listing is a category under UL 864, Control Units and Accessories for Fire Alarm Systems. UUKL is for products covered under the description "Smoke Control Equipment." Equipment that receives UL's UUKL rating has been tested for integrity and long term reliability. The equipment is subjected to extreme temperatures, humidity and electrical transients and surges. This testing ensures that the devices will continuously perform even under severe and abnormal conditions.
A UUKL Smoke Control System is a combination of fan, dampers, warning devices, relays and modules that all work together to perform the containment function of any smoke event at any location in a building. If the UUKL Smoke Control System is design correctly it should inhibit and or prevent the movement of smoke into areas leading to exits or other areas designated safe zones in a building.
Read more about UUKL Smoke Control Panels HERE.
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Brilliant post. I think there is a gap in the market for this type of alarm system, but this company is really filling the brief.
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