(a) Each unit must have enough spare charges for 50 percent of the hand portable fire extinguishers required under Table 108.495(a) of this subpart that are rechargeable by personnel on the unit.
(b) If a unit has extinguishers that cannot be recharged by personnel on unit, it must also have at least one spare extinguisher for each classification and variety of those extinguishers. Table 108.495(a)--Hand Portable Fire Extinguishers and Semiportable Fire-
Extinguishing Systems------------------------------------------------------------------------
Classification
Space (see table Quantity and location
108.495(b))------------------------------------------------------------------------
safety areas
Wheelhouse and control room... C-I............. 2 in vicinity of
exit.Stairway and elevator ................. None required.
enclosure.Corridors..................... A-II............ 1 in each corridor
not more than 150 ft
(45 m) apart. (May
be located in
stairways.)Lifeboat embarkation and ................. None required.
lowering stations.Radio room.................... C-I............. 2 in vicinity of
exit.
accommodations
Staterooms, toilet spaces, ................. None required.
public spaces, offices,
lockers, small storerooms,
and pantries, open decks, and
similar spaces.
service spaces
Galleys....................... B-II or C-II.... 1 for each 2,500 ft
\2\ (232 m \2\ ) or
fraction thereof
suitable for hazards
involved.Paint and lamp rooms.......... B-II............ 1 outside each room
in vicinity of exit.Storerooms.................... A-II............ 1 for each 2,500 ft
\2\ (232 m \2\ ) or
fraction thereof
located in vicinity
of exits, either
inside or outside
the spaces.Work shop and similar spaces.. C-II............ 1 outside each space
in vicinity of an
exit.
machinery spaces
Oil-fired boilers: Spaces B-II............ 2 required in each
containing oil-fired boilers, B-V.............. space.
either main or auxiliary, or 1 required in each
their fuel oil units. space.Internal combustion or gas B-II............ 1 for each 1,000
turbine propelling machinery brake horsepower but
spaces. not less than 2 nor
more than 6 in each
space.
B-III........... 1 required in each
space. See note 1.Motors or generators of C-II............ 1 for each motor or
electric propelling machinery generator.
that do not have an enclosed
ventilating system.Motors and generators of ................. None required.
electric propelling machinery
that have enclosed
ventilating systems.
auxiliary spaces
Internal combustion engines or B-II............ Outside the space
gas turbine. containing engines
or turbines in
vicinity of exit.Electric emergency motors or C-II............ 1 outside the space
generators. containing motors or
generators in
vicinity of exit.Steam driven auxiliary ................. None required.
machinery.Trunks to machinery spaces.... ................. Do.Fuel tanks.................... ................. Do.
miscellaneous areas
Helicopter landing decks...... B-V............. 1 at each access
route.Helicopter fueling facilities. B-IV............ 1 at each fuel
transfer facility.
See note 2.Drill floor................... C-II............ 2 required.Cranes with internal B-II............ 1 required.
combustion engines.------------------------------------------------------------------------Notes: 1. Not required where a fixed gas extinguishing system is
installed.2. Not required where a fixed foam system is installed in accordance
with Sec. 108.489 of this subpart.
Table 108.495(b)--------------------------------------------------------------------------------------------------------------------------------------------------------
Classification: Water liters Foam liters Carbon dioxide Dry chemical Halon 1211
Type and size (gallons) (gallons) kilograms (pounds) kilograms (pounds) kilograms (pounds)--------------------------------------------------------------------------------------------------------------------------------------------------------A............................... II................ 9.5 (2\1/2\)...... 9.5 (2\1/2\)...... .................. 2.25 (5) \3\......B............................... I................. .................. 4.7 (1\1/4\)...... 1.8 (4)........... 0.9 (2)........... 1.1 (2\1/2\)B............................... II................ .................. 9.5 (2\1/2\)...... 6.7 (15).......... 4.5 (10).......... 4.5 (10) \5\B............................... III............... .................. 45.5 (12)......... 15.8 (35)......... 9.0 (20)..........B............................... IV................ .................. 7.6 (20).......... 22.5 (50)......... 13.5 (30).........B............................... V................. .................. 152 (40).......... 45 (100) \4\...... 22.5 (50) \4\.....C............................... I................. .................. .................. 1.8 (4)........... 0.9 (2)...........C............................... II................ .................. .................. 6.7 (15).......... 4.5 (10)..........C............................... III............... .................. .................. 15.8 (35)......... 9.0 (20)..........C............................... IV................ .................. .................. 22.5 (50)......... 13.5 (30).........--------------------------------------------------------------------------------------------------------------------------------------------------------Note: 1. Fire extinguishers are designed by type as follows: (a) ``A'' for fires in combustible materials such as wood. (b) ``B'' for fires in flammable
liquids and greases. (c) ``C'' for fires in electrical equipment.2. Fire extinguishers are designated by size where size ``I'' is the smallest and size ``V'' is the largest. Sizes ``I'' and ``II'' are hand-portable
extinguishers and sizes ``III'', ``IV'', and ``V'' are semiportable extinguishers.3. Must be specifically approved as a type A, B, or C extinguisher.4. For outside use, double the quantity of agent that must be carried.5. For outside use only.