DEPARTMENT OF THE NAVY
NAVAL FACILITIES ENGINEERING COMMAND
200 STOVALL STREET
ALEXANDRIA VA 22322-2300
Design Policy Letter DPL-88-0O10
Commander, Naval Facilities Engineering Command
FIRE PROTECTION IN ELEVATOR HOISTWAYS
(a) ANSI/ASME A 17.1, Safety Code For Elevators And Escalators
(b) NFPA No. 13, Sprinkler Systems'
1. Purpose: To provide guidance for the automatic shut down of the main
power supply for elevators that are located in buildings which have automatic
2: Background: Individual interpretations of references (a) and (b) have
caused problems in regards to the requirements for the disconnect of the main
power supply for elevators prior to the operation of the sprinkler heads
located in hoistways and machine rooms.
3. Policy Statement: It is the policy of the Naval Facilities Engineering
Command (NAVFACENGCOM) to follow the following criteria for sprinklered
buildings that have elevators:
a. Provide 212 degree Fahrenheit sprinkler heads on wet pipe branch lines
that are located in the hoistways or machine rooms.
b. Provide 165 degree Fahrenheit rate compensated heat detectors at the
roof/ceiling level of the machine rooms, at the underside of the hoistway
ceilings and in the hoistway pit areas. Operation of these detectors shall
activate the building fire alarm system which shall also transmit an alarm to
the fire department and illuminate a warning sign and audible device in each
elevator that is involved. The sign shall continue to be illuminated and the
audible device shall continue to sound until the source potential is removed.
c. Provide a second head detector located adjacent to the 165 degree
detector. Activation of this 190 degree Fahrenheit fixed temperature rating
heat detector shall disconnect the main line power supply to the elevators.
d. The illuminated warning sign shall be located above or adjacent to the
car operating panel. The glass portion of the fixture shall be at least three
inches high and four inches wide. The warning message shall be backlighted in
such a manner that when it is off, only a black glass is visible. Message on
the-glass when illuminated shall be:
All features of the elevator shall comply with references (a) and (b).