TRAINEE GUIDE - Recruit Training Command - The US Navy

TRAINEE GUIDE A-950-0001
OUTLINE SHEET 1-16-1 (continued)
4. Halon 1301 Fire Extinguishing System
a. Purpose--Protects machinery spaces and flammable liquid storage
rooms from class “____________” fires that cannot be extinguished
by initial watchstander actions.
b. Components
(1) CO2 cylinder--Stores CO2; CO2 is used to activate the Halon
system.
(2) ____________/____________ alarms--Warn personnel the Halon
system has been activated.
(3) Time delay device--Delays the release of Halon for 30
seconds (non-machinery spaces) or 60 seconds (machinery
spaces) to allow time to secure the space and ventilation
to shut down.
(4) Halon cylinders--Store Halon 1301.
c. SAFETY PRECAUTIONS
5. Firemain System
(1) Evacuate the space when the Halon system activated alarm
sounds.
(a) Halon produces toxic gases upon contact with flames or
surfaces above 900° F.
(b) The release of Halon causes air turbulence,
____________, obscured ____________, and cold
temperature.
(2) Do NOT enter a space flooded with Halon without wearing an
OBA/SCBA.
a. Purpose--Used to supply ____________ water to the ship.
b. Components
(1) Fire pump--Provides ____________ pressure in the system.
(2) Pipes--Through which seawater flows.
(3) Cutout valves--Used to isolate sections of the firemain
that are damaged so that other sections can operate
normally.
(4) Fireplug/firestation--Provides connections from the
firemain to fire hoses.
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