26 September 2006
The building layout.
Small Self-Contained Deluge Systems.
Currently, two types of small self-contained deluge systems are in use in military
ordnance facilities. They may be used with the ultra high-speed deluge systems
discussed in this section, or alone if an adequate water supply is not available for
the facility. These small self-contained deluge systems are primarily intended for
personnel protection, although they provide some building/equipment protection.
When used, these systems should be connected to the existing water supply if
the water supply can be of some benefit.
6-10.2.5.1 The portable deluge system is a transportable self-contained ultra
high-speed deluge system. The system uses multiple optical fire detectors,
multiple nozzles, and a pressurized water tank (typically 380 L (100 gallons) of
water). Response time does not exceed 100 ms (detection to water at the
nozzle). The portable system is intended to protect short-term operations. When
possible, connect the portable deluge system to the building water supply for
6-10.2.5.2 The pressurized sphere ultra high-speed deluge system is a small
self-contained system. The system uses one or more optical fire detectors, at
least one pressurized (typically 3,447 kPa (500 psi)) water sphere (typically 10 to
30 liters (2.6 to 7.9 gallons)) with a rupture disc and internal squib, and an
electronic controller. Response time is less than 10 ms (detection to water at the
nozzle). The sphere discharges water when the squib fires, opening the rupture
disc. A screen breaks the water into small-atomized particles and collects the
residual squib fragments.
Magazines and Bunkers.
Magazines, storage facilities, and bunkers must be constructed and located in
accordance with DOD 6055.9-STD. Storage facilities, magazines, and bunkers
not located under the same roof as facilities used for handling, processing,
oxidizers must be constructed and located in accordance with DOD 6055.9-STD.
Automatic sprinklers and hydrant protection are not required for magazines,
bunkers, and storage facilities similarly constructed and located.