Fire Stations

TM 55-1915-200-10

of the compartment. There is a 25-second delay during

The dry chemicals suspend fine particles in the fire to

which the siren sounds, warning personnel to evacuate

screen the fire from oxygen and fuel sources, thereby

the protected area. Pressure switches interconnected

extinguishing the fire.

with the electrical system are activated during the delay

for ventilation and equipment shutdown.

Upon

1-10.15.6. Submersible Pumps. Submersible pumps

discharge, the halon cylinders will release and "flood"

provide a portable means of pumping out water-filled

the designated compartment in approximately 10

compartments. A centrifugal pump is driven by a

seconds.

constant speed electric motor contained within the pump

and enclosed in a water-jacket for cooling. The pump is

1-10.15.2. Fire Stations. Fire stations provide water for

intended to be fully immersed in the water it is pumping.

fire suppression throughout the ship. Fire stations

1-10.15.7. Eductor Bilge 4" Ejector Set. The Eductor

consist of fire plugs connected to the fire/bilge system

(FIGURE 1-36) or fire main piping system (FIGURE 1-

bilge 4" ejector set is a jet-type pump which can pump

37). Installed at each fire station is an all-purpose

liquids containing small particles of foreign matter. The

nozzle.

pump has no moving parts and does not require

electricity.

1-10.15.3. Carbon Dioxide Equipment. Carbon dioxide

(CO2) systems provide fire suppression in areas that

1-10.15.8. Ventilating Portable Blower GE-V8. The

present unusual fire hazards. When released from the

ventilating portable blower provides portable ventilation

cylinder, C02 liquid rapidly expands to about 450 times

to confined spaces. The blower is a gasoline engine

its stored volume. This rapid expansion causes the

driven device. It contains a fan enclosed in a shroud

liquid to become C02 gas. Because it is heavier than

and a flexible hose.

air, the CO2 gas will settle to blanket and extinguish the

fire.

1-10.15.9. Portable Fire Pump. The portable fire pump

provides high pressure water as a backup source for the

1-10.15.4. Oxygen Breathing Apparatus (OBA). The

fire stations and is also portable. It draws water from

the sea (or other sources) and pumps it through hoses

oxygen breathing apparatus provides oxygen to the

and nozzles under high pressure for fire fighting. It can

wearer for entering smoke filled compartments to fight

also be used for large volume pumping at low pressure

fires. When activated, a chlorate candle within the

for damage control work. The centrifugal gas engine

apparatus generates oxygen and supplies it to the

portable fire fighting pump is powered by a gasoline

breathing bag. Chemicals within the canister remove

driven engine, with a battery powered electrical starter

moisture and carbon dioxide from the exhaled air and

and a backup pullstarter.

return the remainder of the air to the breathing bag. A

pressure relief valve vents excess pressure from the

breathing bag.

1-10.15.10. Countermeasure Washdown System. The

countermeasure washdown system (FIGURE 1-38) uses

1-10.15.5. Dry Chemical Extinguishers. Dry chemical

fire station 12 to provide an umbrella of water over the

extinguishers provide fire suppression for chemicals and

superstructures in case of nuclear, biological, or

liquids that are difficult to extinguish. They dispense a

chemical (NBC) attack. Fire main seawater is directed

powder that interrupts the chemical reaction of the fire.

through a piping system in the handrail of the

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