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Evolution of an Elevator Task Group Project

BY JOHN J. O’DONOGHUEAs far back as the early 1970s, a sign at every elevator lobby/hall call station warned occupants not to take the elevator during a fire. This caution was well-founded, since there is a history of incidences in which building occupants were found injured or dead in elevators during or after a fire. Failures of the building systems, as well as elevator malfunctions brought about by the products of combustion from the fire environment, were among the causes for these injuries and deaths. The elevator malfunctions were caused primarily by the heat’s melting the elevator hall call button that calls the elevator to the fire floor and the opening of the car and ...

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