the quantity in pounds of carbon dioxide required may be determined by dividing the gross volume of the space by a factor of 22. Lamp lockers, oil rooms, and like compartments, in all classes of vessels, shall be wholly and tightly lined with metal. The whole charge of gas shall be capable of being released simultaneously by operating one valve and control, and all cylinders shall be completely discharged in not more than two minutes. (3) Pipes used for supplying carbon dioxide to the cargo holds, cargo 'tweendecks, other closed cargo compartments, and cargo-oil deep tanks shall be not less than three-fourths inch inside diameter. Pipes used for supplying carbon dioxide to lamp lockers, oil rooms, and like compartments shall not be less than one-half inch inside diameter. (4) The control(s) releasing the inert gas shall be located in a position(s) outside the space (s) protected and shall be readily accessible when the vessel is being navigated. All valves shall be permanently marked to indicate into which compartment they discharge. A space which is protected by a carbon dioxide extinguishing system, and is normally accessible to crew while the nautical school ship is being navigated shall be fitted with an approved audible alarm in such space, which will be automatically sounded when the carbon dioxide is admitted to the space. (5) Provisions shall be made to prevent the admission of air into the lower parts of cargo holds, cargo 'tween-decks, and other closed cargo compartments while the inert-gas system is in operation. (6) Cylinders, piping, and controls for the inert-gas system shall be protected from damage and shall be securely fastened and supported. § 167.45-5 Steam fire pumps or their equivalent. (a) All nautical school ships shall be equipped with fire pumps. (b) Nautical school ships of 100 gross tons and under shall be equipped with one hand fire pump with a pump-cylinder capacity not less than 100 cubic inches, or a power-driven pump of equivalent discharge capacity. (c) Nautical school ships over 100 gross tons shall be equipped with fire pumps and piping as follows: (1) All nautical school ships shall be provided with powerful pumps available for use as fire pumps. When of less than 1,000 gross tons it shall have 1, and when larger it shall have at least 2 independently driven pumps connected to the fire main. Each pump shall be capable of delivering two powerful jets of water simultaneously from the highest outlets on the fire main at a Pitot tube pressure of approximately 50 pounds per square inch through nozzles, each having an orifice of not less than % inch diameter where the internal diameter of the hose exceeds 11⁄2 inches and not less than % inch in diameter where the internal diameter of the hose does not exceed 12 inches. (2) On oil-burning nautical school ships, where two pumps are required, they may be located in the same compartment, if the compartment is equipped with an approved fixed carbon dioxide extinguishing system. (d) Outlets from the fire mains shall be of a sufficient number and so arranged that any part of the living quarters, weather decks and any part of cargo decks, accessible to crew, while the nautical school ship is being navigated, may be reached with a single 50-foot length of hose. Outlets within accommodations and service spaces adjacent thereto shall comply with the above or they may be so arranged that any part may be reached with a single 75-foot length of hose provided a siamese connection is fitted at each outlet. Where the fire main is located on an exposed deck, branches shall be provided so that the hose connections necessary to comply with the foregoing be distributed on both sides of the nautical school ship. The fire hose shall be connected to the outlet at all times, except on open decks where the location of the fire hydrants is such that no protection is afforded for the hose in heavy weather. The fire hose may be temporarily removed from the hydrant when it will interfere with the handling of cargo. (e) Outlet openings shall have a diameter of not less than 11⁄2 inches and shall be fitted with suitable hose connections and spanners. The arrangement of the fire hydrant shall be limited to any position from the horizontal to the vertical pointing downward, so that the hose will lead downward or horizontally, in order to minimize the possibility of kinking. In no case will a hydrant arranged in a vertical position with the outlet pointing upward be accepted. (f) Fire pumps shall be fitted on the discharge side with relief valves set to relieve at 25 pounds higher than the pressure necessary to maintain the requirements of paragraph (c) (1) of this section and a pressure gage to indicate the pressure on the fire main. If the fire pumps operating under shut-off conditions are not capable of producing a pressure exceeding 125 pounds per square inch, the relief valve may be omitted. § 167.45-10 Couplings on fire hose. The couplings on fire hose shall be of brass, copper, or composition material. All hydrants shall be provided with suitable spanners. § 167.45-15 Capacity of pipes and hose. The capacity of the pipes and hose leading from the pumps shall in no case be less than that of the discharge opening of the pump: Provided, however, That the pipe and hose shall in no instance be less than 11⁄2 inches in internal diameter. § 167.45-20 Examination and testing of pumps and fire-extinguishing equipment. The inspectors will examine all pumps, hose, and other fire apparatus and will see that the hose is subjected to a pressure of 100 pounds to the square inch at each annual inspection and that the hose couplings are securely fastened. § 167.45-25 Fire mains and hose connections. All pipes used as mains for conducting water from fire pumps on nautical school ships shall be of steel, wrought iron, brass, or copper with wrought iron brass, or composition hose connections. § 167.45-30 Use of approved fire-fighting equipment. Portable fire extinguishers or fire-extinguishing systems which conform to the specifications of the Navy or Coast Guard, or their approved equivalent, may be accepted for use on nautical school ships. § 167.45-40 Fire-fighting equipment on nautical school ships using oil as fuel. Steam-propelled nautical school ships burning oil for fuel shall be fitted with the fire-fighting equipment of the following type and character: (a) In each fire room a metal receptacle containing not less than 10 cubic feet of sand, sawdust impregnated with soda, or other approved dry materials, and scoop or shaker for distributing it: Provided, That a nautical school ship of 1,000 gross tons and under using oil as fuel, shall be fitted with a metal receptacle, containing not less than 5 cubic feet of sand, sawdust impregnated with soda, or other approved dry material, and scoop or shaker for distributing it. (b) In each boiler room and in each of the machinery spaces of a nautical school ship propelled by steam, in which a part of the fuel-oil installation is situated, two or more approved fire extinguishers of the foam type of not less than 22 gallons each or two or more approved fire extinguishers of the carbon dioxide (CO1) type of not less than 15 pounds each shall be placed where accessible and ready for immediate use: Provided, That on a nautical school ship of 1,000 gross tons and under only one of the fire extinguishers may be required. (c) In boiler and machinery spaces of a nautical school ship of 1,000 gross tons and over, there shall be fitted in each such compartment not less than two spray-nozzle hydrants to which shall be attached sufficient length of hose so that any part of the boiler or machinery space may be reached. An approved spray nozzle shall be attached to each hose line. The use of any Navy or Coast Guard approved type of combination nozzle, which can project a solid stream or a fog spray or can be shut off, is acceptable in boiler and machinery spaces when the nozzle is equipped with an applicator having an approved low velocity water fog spray head attached. In this equipment the standard portable self-cleaning hose strainer shall be included. (d) On every steam propelled nautical school ship of over 1,000 gross tons having one boiler room there shall be provided one fire extinguisher of the foam type of at least 40 gallons rated capacity or one carbon dioxide (CO2) extinguisher of at least 100 pounds. If the nautical school ship has more than one boiler room, an extinguisher of the above type shall be provided in each boiler room. On every steam propelled nautical school ship of 1,000 gross tons and under, foam type fire extinguishers of at least 20 gallons rated capacity or carbon dioxide (CO2) extinguishers of at least 50 pounds shall be used. Extinguishers fitted shall be equipped with suitable hose and nozzles on reels or other practicable means easy of access, and of sufficient length to reach any part of the boiler room and spaces containing oil-fuel pumping units. (e) All nautical school ships propelled by internal-combustion engines shall be equipped with the following foam type or carbon dioxide type fire extinguishers in the machinery spaces: (1) One approved 12-gallon foam-type extinguisher or one approved 35-pound carbon dioxide type extinguisher. (2) One approved 21⁄2-gallon foamtype, or one approved 15-pound carbon dioxide type extinguisher for each 1,000 B. H. P. of the main engines, or fraction thereof. The total number of fire extinguishers carried shall not be less than two and need not exceed six. (3) When a donkey boiler fitted to burn oil as fuel is located in the machinery space, there shall be substituted for the 12-gallon foam type or 35-pound carbon dioxide type fire extinguisher required either one 40-gallon foam type or one 100-pound carbon dioxide type fire extinguisher. (f) In this section any reference to an approved fire extinguisher means either approved by the Coast Guard or the Navy. § 167.45-45 Carbon dioxide fire-extinguishing system requirements. (a) When a carbon dioxide (CO2) smothering system is fitted in the boiler room, the quantity of carbon dioxide carried shall be sufficient to give a gas saturation of 25 percent of the gross volume of the largest boiler room from tank top to top of the boilers. Top of the boilers is to be considered as the top of the shell of a Scotch or leg type of boiler, and the top of the casing or drum, whichever is the higher, on water-tube boilers. The quantity of carbon dioxide required may be determined approximately by the following formula: W the weight of CO, required in pounds. D= distance in feet from tank top or flat (c) The whole charge of gas shall be capable of being released simultaneously by operating one valve and control. All cylinders shall be completely discharged in not more than two minutes. The arrangement of the piping shall be such as to give a general and fairly uniform distribution over the entire area protected. An alarm which shall operate automatically with the operation of the system shall be provided to give a warning in the space when the carbon dioxide is about to be released. Provision shall be made to prevent the admission of air into the lower parts of the boiler or engine room while the system is in operation. § 167.45-50 Foam smothering system requirements. (a) When a foam-type system is fitted, its capacity shall be such as to rapidly discharge over the entire area of the bilge (tank top) of the largest boiler room a volume of foam 6 inches deep in not more than 3 minutes. The arrangement of piping shall be such as to give a uniform distribution over the entire area protected. (b) The foam-type system may be of a type approved by the Navy or Coast Guard. All containers and valves by which the system is operated shall be easily accessible and so placed that control valves and containers will not readily be cut off from use by an outbreak of fire. § 167.45-55 Fixed water spray system requirements. (a) When a fixed system is fitted for spraying water on oil in bilges, its capacity shall be such as to blanket the entire area of the bilge (tank top) of the largest boiler room with an adequate supply of water. (b) The arrangement of piping and nozzles shall be such as to give a uniform distribution over the entire area protected. The piping system for each space protected shall be one unit, unless otherwise specifically approved by the Commandant. (c) All valves by which the system is operated shall be located outside of the space protected and shall be easily accessible. Suitable means shall be provided to prevent the passage of foreign substances into the spray nozzles. (d) The primary source of supply for the system shall be from a pump or pumps of suitable capacity and pressure. The pump or pumps shall be reserved for this purpose only. This pump or pumps shall be located outside of space protected. § 167.45-60 Emergency breathing apparatus and flame safety lamps. All nautical school ships shall be equipped with the following devices, approved by Coast Guard or Navy: (a) One self-contained breathing apparatus. (b) One supplied air respirator. (d) One gas mask of a type giving protection against refrigerant used on board the nautical school ship. § 167.45-65 Portable fire extinguishers in accommodation spaces. (a) All nautical school ships shall be provided with such number of good and efficient portable fire extinguishers approved by the Navy or Coast Guard as follows: (1) Nautical school ships less than 150 feet in length shall have at least two fire extinguishers on each passenger deck. (2) Nautical school ships 150 feet and over in length shall be provided with at least one fire extinguisher for every 150 linear feet of corridor length or fraction thereof in the spaces occupied by passengers and crew. (3) In all public spaces fire extinguishers shall be located not more than 150 feet apart. (b) The number of required fire extinguishers is based on the capacity of the ordinary fire extinguisher, which is about 22 gallons, and no fire extinguisher of larger capacity shall be allowed a greater rating than that of the ordinary fire extinguisher. Fire extinguishers of approved types of less capacity are allowable when their total contents equal the required quantity. § 167.45-70 Portable fire extinguishers, general requirements. (a) Extra safety-valve units shall be carried on board for 50 percent of the hand fire extinguishers of the foam type and extra (2) When a nautical school ship is provided with carbon dioxide type of fire extinguishers it may be furnished with either an additional carbon dioxide fire extinguisher or a 21⁄2-gallon foam fire extinguisher in lieu of carrying extra charges. For that 21⁄2-gallon foam fire extinguisher no extra charge will be required. (b) Recharges, particularly the acid, used in charging soda-and-acid type of fire extinguishers, shall be packed in such manner that the filling operation (i. e., in recharging the extinguisher) can be performed without subjecting the person doing the recharging to undue risk of acid burns and shall be contained in Crown stopper type of bottle. (c) There shall also be carried on board a complete recharge for any fixed or built-in fire extinguishing system that has been approved by the Navy or Coast Guard, except systems for engine rooms, firerooms, and cargo holds. (d) Fire extinguishers shall be located in such places as in the judgment of the Officer in Charge, Marine Inspection, will be most convenient and serviceable in case of emergency and so arranged that they may be easily removed from their fastenings. (e) Every fire extinguisher provided shall be examined at each annual inspection to determine that it is still in good condition. Soda-and-acid and foam fire extinguishers shall be tested by discharging the contents, cleaning thoroughly, and then refilling. Carbon tetrachloride fire extinguishers shall be tested for their pumping efficiency and the liquid discharged with proper care so that it may be replaced in the extinguishers. Carbon dioxide fire extinguishers shall be checked by weighing to determine contents and if found to be more than 10 percent under required contents of carbon dioxide shall be recharged. Pump tank fire extinguishers shall be tested by pumping and discharging the contents, cleaning thoroughly, and then refilling or recharging. Cartridge-operated type fire extinguishers shall be checked by examining the extinguishing agents to determine if in still good condition and by weighing the cartridges; if the weight of the cartridge is 1⁄2 ounce or more under the weight stamped thereon or if it s punctured, the cartridge shall be rejected and a new one inserted. The hoses and nozzles of all fire extinguishers shall be inspected to see that they are clear and in good condition. § 167.45-75 Fire extinguishers for emergency power plants. In compartments where emergency lighting and wireless units are located, two fire extinguishers approved by the Coast Guard or the Navy, of either carbon tetrachloride, carbon dioxide, or dry chemical type shall be permanently located at the most accessible points. In addition, two fire extinguishers of the above types, or foam type, shall be permanently located so as to be readily accessible to the emergency fuel tanks containing gasoline, benzine or naphtha. § 167.45-80 Fire axes. (a) All nautical school ships shall be provided with fire axes, as follows: (b) All fire axes shall be located so as to be readily found in time of need, shall not be used for general purposes, and shall be kept in good condition. SUBPART 167.50-ACCOMMODATIONS § 167.50-1 Hospital accommodations. Each nautical school ship, which makes voyages of more than 3 days' duration between ports and carries 12 or more persons, shall be equipped with a compartment suitably separated from other spaces for hospital purposes, and such compartment shall have at least 1 bunk for every 12 persons allowed to be carried: Provided, That not more than 6 bunks shall be required in any case. SUBPART 167.55-SPECIAL MARKINGS § 167.55-1 Draft marks. Every nautical school ship of 50 gross tons and over, shall have its draft plainly and legibly marked upon the stem and upon the sternpost or rudderpost or at such other place at the stern of the vessel as may be necessary for easy observance. The draft shall be taken from the bottom of the lowest part of the keel to the surface of the water, the bottom of the mark to indicate the draft in feet. § 167.55-5 Marking of fire and emergency equipment, etc. Marking of fire and emergency apparatus, watertight doors, lifeboat embarkation stations and direction signs, stateroom notices, instructions for changing steering gears, etc., shall be carried out as follows: (a) General alarm bell switch. The general alarm bell switch in the pilothouse or fire control station shall be clearly marked with lettering on a brass plate or with a sign in red letters on suitable background: "General Alarm." (b) General alarm bells. General alarm bells shall be marked in not less than 2-inch red letters: "General Alarm-When Bell Rings Go to Your Station." (c) Steam, foam or CO. fire smothering apparatus. Steam, foam or CO, fire smothering apparatus shall be marked "Steam Fire Apparatus" or "Foam Fire Apparatus" or "CO, Fire Apparatus", as appropriate, in not less than 2-inch red letters. The valves of all branch piping leading to the several compartments shall be distinctly marked to indicate the compartments or parts of the nautical school ship to which they lead. (d) Fire hose stations. At each fire hose valve there shall be marked in not less than 2-inch red letters and figures "Fire Station 1," 2, 3, etc. |