foam discharge will occur. Deluge systems provide
the fastest fire extinguishment. Do not use
pre-action sprinklers for in-rack systems unless
in-rack detectors are specified. Areas larger than
279 sq meters 3,000 square feet and all deluge
systems must be hydraulically designed for uniform
distribution. Assure that up to date reliable
hydraulic data is used in design of the project. Do
not show sprinkler piping layout and heads on
project drawings. System requirements must conform
to Unified Facilities Criteria (UFC) 3-600-01
Design: Fire Protection Engineering for Facilities.
**************************************************************************
**************************************************************************
NOTE: If there are questions concerning type of foam
systems required, consult the Engineering Field
Division, Naval Facilities Engineering Command.
**************************************************************************
**************************************************************************
NOTE: The following information shall be shown on
the project drawings:
1. Location and detail of each foam system supply
riser, pre-action, dry-pipe, or deluge valve, water
motor alarm, fire department inlet connection, foam
hydrants, hand hose stations, monitor nozzles, air
compressor(s), and associated electrical connections.
2. Point of connection to the existing water
distribution system.
3. Location of foam system control valves and post
indicator valves.
4. Area(s) of foam system coverage, with zone
designations (if multiple zones). For truck or rail
car loading/unloading racks indicate limits of the
containment area. Do not show piping layout.
5. For in-rack protection show rack locations,
number of tiers and height. Also, show generic
mounting details for sprinkler heads, detectors,
piping and conduit.
6. For pipe larger than 305 mm 12 inches, detail
methods of anchoring pipe including pipe clamps and
tie rods.
7. Location of foam proportioning equipment and
storage tank.
8. Show locations of control panel, annunciator(s),
alarm devices, manual actuation stations, point of
connection to the building fire evacuation alarm
system, remote trouble device, point of connection
to the incoming power supply and fusible safety
switch. Do not show conduit sizes or number of
SECTION 13958N
Page 5
Previous Page
