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Water Leakage of Elevator Doors With Application to Building Fire Suppression.


pdf icon Water Leakage of Elevator Doors With Application to Building Fire Suppression. (920 K)
Klote, J. H.; Braun, E.

NISTIR 5925; 18 p. December 1996.

Sponsor:

National Elevator Industry Inc., Fort Lee, NJ

Available from:

National Technical Information Service
Order number: PB97-132013

Keywords:

doors; elevators (lifts); fire suppression; fire fighting; water; leakage; sprinklers; fire hoses; elevator shafts

Abstract:

In recent years, considerable interest has been expressed in improving elevator use during fires (ASME 1991 and 1995, Klote et al. 1992). Water exposure due to sprinklers and fire hoses is a major concern of the fire service with the use of elevators during fires, because of the effect that water can have on electrical and electronic elevator components. The National Elevator Industry Incorporated (NEII) and NIST are engaged in a cooperative research project to study water flow issues of elevator use during fires. Because of the wide range of designs of elevator components, studying the impact of water on specific elevator components would have limited applicability. Thus the project focuses on water flow rates into elevator hoistways (elevator shafts) and the flow paths in the hoistways with the intent of providing information that might be useful to industry in dealing with this issue. This paper describes a series of laboratory tests to: (1) determine typical flow rates of water through elevator doors, (2) observe water leakage patterns, (3) evaluate the performance of modified door gibs and brackets intended to reduce or redirect water leakage, and (4) evaluate a test enclosure concept for possible field testing.