AC77 Smoke-containment Systems Used with Fire-resistance-rated Elevator Hoistway Doors and Frames and at the Intersection of Elevator Lobby and Corridor—Approved February 2019 (PDF Download)

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AC77 2-2019
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AC77 establishes guidelines for evaluation of smoke-containment systems as tight-fitting, smoke and draft control assemblies. The systems are used with fire-resistance-rated elevator hoistway doors and frames or as smoke curtain systems installed remotely from the hoistway door at the intersection of the elevator lobby and corridor.

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