Coffee Break Training: Automatic Sprinklers: Elevator Hoistways and Machine Rooms [open pdf - 551KB]
"There has been a long-standing controversy between fire protection and elevator operation regarding the installation of automatic sprinklers in elevator hoistways and machine rooms. National Fire Protection Association (NFPA) 13, 'Standard for the Installation of Sprinkler Systems' requires that sprinklers be provided throughout the premises. However, certain provisions permit sprinklers to be omitted from certain spaces where specific conditions are satisfied. On the other hand, codes that cover elevator design, such as the American Society of Mechanical Engineers' A17.1, Safety Code for Elevators and Escalators, do not permit water discharge in elevator shafts until electrical power to the elevator cab has been shut down. This conflict has led to some complex and expensive solutions, such as the installation of preaction sprinkler systems or elevator shunt trip devices."
Coffee Break Training - Fire Protection Series No. FP-2014-17
United States Fire Administration: http://www.usfa.fema.gov/