46 C.F.R. Subpart 193.50—Hand Portable Fire Extinguishers and Semiportable Fire Extinguishing Systems, Arrangements and Details
Title 46 - Shipping
(a) The provisions of this subpart, with the exception of §193.50–90, shall apply to all vessels, including non-self-propelled vessels of less than 300 gross tons, contracted for on or after March 1, 1968. (b) All vessels other than unmanned barges contracted for prior to March 1, 1968, shall meet the requirements of §193.50–90. (c) All unmanned barges are exempted from the requirements in this subpart. However, if such barges carry on board hand portable fire extinguishers and semiportable fire extinguishing systems, then such equipment shall be in accordance with this subpart for manned barges. (a) Hand portable fire extinguishers and semiportable fire extinguishing systems shall be classified by a combination letter and number symbol. The letter indicating the type of fire which the unit could be expected to extinguish and the number indicating the relative size of the unit. (b) The types of fire will be designated as follows: (1) “A” for fires in ordinary combustible materials where the quenching and cooling effects of quantities of water, or solutions containing large percentages of water, are of first importance. (2) “B” for fires in flammable liquids, greases, etc., where a blanketing effect is essential. (3) “C” for fires in electrical equipment where the use of nonconducting extinguishing agent is of first importance. (c) The number designations for size will start with “I” for the smallest to “V” for the largest. Sizes I and II are considered hand portable fire extinguishers and sizes III, IV, and V are considered semiportable fire extinguishing systems which shall be fitted with suitable hose and nozzle or other practicable means so that all portions of the space concerned may be covered. Examples of size graduations for some of the typical hand portable and semiportable fire extinguishing systems are set forth in Table 193.50–5(c). (d) All hand portable fire extinguishers and semiportable fire extinguishing systems shall have permanently attached thereto a metallic nameplate giving the name of the item, the rated capacity in gallons, quarts, or pounds, the name and address of the person or firm for whom approved, and the identifying mark of the actual manufacturer. (e) Vaporizing liquid type fire extinguishers containing carbon tetrachloride or chlorobromomethane or other toxic vaporizing liquids shall not be permitted. (a) Approved hand portable fire extinguishers and semiportable fire extinguishing systems shall be installed in accordance with Table 193.50–10(a). The location of the equipment shall be to the satisfaction of the Officer in Charge, Marine Inspection. Nothing in this paragraph shall be construed as limiting the Officer in Charge, Marine Inspection, from requiring such additional equipment as he deems necessary for the proper protection of the vessel. (b) Semiportable fire extinguishing systems shall be located in the open so as to be readily seen. (c) If hand portable fire extinguishers are not located in the open or behind glass so that they may be readily seen, they may be placed in enclosures together with the firehose, provided such enclosures are marked as required by §196.37–15 of this subchapter. (d) Hand portable fire extinguishers and their stations shall be numbered in accordance with §196.37–15 of this subchapter. (e) Hand portable or semiportable extinguishers, which are required on their nameplates to be protected from freezing, shall not be located where freezing temperatures may be expected. (a) For all vessels spare charges shall be carried for at least 50 percent of each size and each variety, i.e., foam, soda-acid, carbon dioxide, etc., of hand portable fire extinguishers required by §193.50–10(a). However, if the unit is of such variety that it cannot be readily recharged by the vessel's personnel, one spare unit of the same classification shall be carried in lieu of spare charges for all such units of the same size and variety. (b) Spare charges shall be so packaged as to minimize the hazards to personnel while recharging the units. Acid shall be contained in a Crown stopper type of bottle. (a) The frame or support of each size III, IV, and V fire extinguisher required by Table 193.50–10(a) must be welded or otherwise permanently attached to a bulkhead or deck. (b) If an approved size III, IV, or V fire extinguisher has wheels and is not required by Table 193.50–10(a), it must be securely stowed when not in use to prevent it from rolling out of control under heavy sea conditions. [CGD 77–039, 44 FR 34133, June 14, 1979] (a) Vessels contracted for prior to March 1, 1968, shall meet the following requirements: (1) Except as specifically modified by this paragraph, the requirements of §§193.50–5 through 193.50–15 shall be complied with insofar as the number and general type of equipment is concerned. (2) Existing installations previously approved, but not meeting the applicable requirements of §§193.50–5 through 193.50–15 may be continued in service so long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection, and they are in general agreement with the degree of safety prescribed by Table 193.50–10(a). Minor modifications may be made to the same standard as the original installation: Provided, That in no case will a greater departure from the standards of Table 193.50–10(a) be permitted than presently exists. (3) All new equipment and installations shall meet the applicable requirements in this subpart for new vessels.
Title 46: Shipping
PART 193—FIRE PROTECTION EQUIPMENT
Subpart 193.50—Hand Portable Fire Extinguishers and Semiportable Fire Extinguishing Systems, Arrangements and Details
§ 193.50-1 Application.
§ 193.50-5 Classification.
Table 193.50-5(c)---------------------------------------------------------------------------------------------------------------- Classification Soda---------------------------------------------------------------------------- acid Carbon Dry and Foam, dioxide, chemical, Type Size water, gals. lbs. lbs. gals.----------------------------------------------------------------------------------------------------------------A.......................................... II........................... 2\1/2\ 2\1/2\ ........ .........B.......................................... I............................ ....... 1\1/4\ 4 2B.......................................... II........................... ....... 2\1/2\ 15 10B.......................................... III.......................... ....... 12 35 20B.......................................... IV........................... ....... 20 50 30B.......................................... V............................ ....... 40 100 50C.......................................... I............................ ....... ...... 4 2C.......................................... II........................... ....... ...... 15 10----------------------------------------------------------------------------------------------------------------
§ 193.50-10 Location.
Table 193.50-10(a)_Hand Portable Fire Extinguisher and Semiportable Fire Extinguishing Systems---------------------------------------------------------------------------------------------------------------- Classification (see § Space 193.50-5) Quantity and location---------------------------------------------------------------------------------------------------------------- Safety Areas1Wheelhouse or fire control room......... .......................... None required.Stairway and elevator enclosures........ .......................... Do.Communicating corridors................. A-II...................... 1 in each main corridor not more than 150 feet apart. (May be located in stairways.)Lifeboat embarkation and lowering .......................... None required. stations.Radio room.............................. C-I \2\................... 2 in vicinity of exit. \2\ Accommodations 1Staterooms, toilet spaces, public .......................... None required. spaces, offices, lockers, isolated storerooms, and pantries open decks, etc. Service spacesGalleys................................. B-II or C-II.............. 1 for each 2,500 square feet or fraction thereof suitable for hazards involved. Machinery spacesPaint and lamp rooms.................... B-II...................... 1 outside space in vicinity of exit.Accessible baggage, mail, and specie A-II...................... 1 for each 2,500 square feet or fraction rooms, and storerooms. thereof located in vicinity of exits, either inside or outside the spaces.Carpenter shop and similar spaces....... A-II...................... 1 outside the space in vicinity of exit.Coal-fired boilers: Bunker and boiler .......................... None required. space.Oil-fired boilers: Spaces containing oil- B-II...................... 2 required. \3\ fired boilers, either main or B-V....................... 1 required. \4\ auxiliary, or their fuel-oil units. B-V.......................Internal combustion or gas turbine B-II...................... 1 for each 1,000 brake horsepower, but not propelling machinery spaces. less than 2 nor more than 6. \5\ B-III..................... 1 required. \6,7\Electric propulsive motors or generators C-II...................... 1 for each propulsion motor or generator of open type. unit.Enclosed ventilating systems for motors .......................... None required. and generators of electric propelling machinery.Auxiliary spaces: Internal combustion gas turbine....... B-II...................... 1 outside the space in vicinity of exit. \7\ Electric emergency motors or C-II...................... 1 outside the space in vicinity of exit. generators. \8\ Steam................................. .......................... None required.Trunks to machinery spaces.............. .......................... Do.Fuel tanks.............................. .......................... Do. Scientific spacesChemistry laboratory or scientific C-II...................... 1 dry chemical and 1 carbon dioxide for laboratory. each 300 square feet or fraction thereof, with one (1) of each kind located in the vicinity of the exit.Chemical storeroom...................... C-II...................... Same as for the chemistry laboratory.----------------------------------------------------------------------------------------------------------------\1\ Two B-I hand portable fire extinguishers may be substituted for 1 B-II.\2\ For vessels on an international voyage, substitute 1 C-II in vicinity of exit.\3\ Vessels of less than 1,000 gross tons require 1.\4\ Vessels of less than 1,000 gross tons may substitute 1 B-IV.\5\ Only 1 required for motorboats.\6\ If oil burning donkey boiler fitted in space, the B-V previously required for the protection of the boiler may be substituted. Not required where a fixed carbon dioxide system is installed.\7\ Not required on vessels of less than 300 gross tons if fuel has a flash-point higher than 110° F.\8\ Not required on vessels of less than 300 gross tons.
§ 193.50-15 Spare charges.
§ 193.50-20 Semiportable fire extinguishers.
§ 193.50-90 Vessels contracted for prior to March 1, 1968.
