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§ 181.15-10 Fire hose.

(a) S and L. One length of fire hose shall be provided for each fire hydrant required.

(b) S. Fire hose may be commercial fire hose or equivalent of not over 11⁄2inch diameter or garden hose of not less than 8-inch nominal inside diameter. Hose shall be in one piece not less than 25 feet and not more than 50 feet in length.

(c) L. Fire hose shall be 11⁄2 inches in diameter and 50 feet in length.

(d) S and L. If 11⁄2 inch diameter fire hose is used after January 1, 1980, each length of hose must:

(1) Be lined commercial fire hose that conforms to Underwriters' Laboratories, Inc., Standard 19 or Federal Specification ZZ-H-451E. A hose that bears the Label of Underwriters' Laboratories, Inc., as lined fire hose is accepted as conforming to the requirement; and

(2) Have a nozzle that has a 1⁄2 inch solid stream orifice or a combination nozzle approved by the Commandant in accordance with § 162.027-6 of this Chapter. The nozzle must be bronze or another material that has strength and corrosion resistance properties equal to those of bronze.

(e) S. If garden hose is used, it shall be of a good commercial grade constructed of an inner rubber tube, plies of braided cotton reinforcement and an outer rubber cover or of equivalent material, and shall be fitted with a commercial garden hose nozzle of good grade bronze or equivalent metal.

(f) S and L. All fittings on fire hose shall be of brass, copper, or other suitable corrosion-resistant metal.

(g) S and L. A length of fire hose shall be attached to each fire hydrant at all times.

[CGFR 63-40, 28 FR 9740, Sept. 6, 1963, as amended by CGD 74-60, 41 FR 43152, Sept. 30, 1976]

Subpart 181.20-Fixed Fire Extinguishing System

§ 181.20-1 Where required.

(a) Fixed carbon dioxide fire extinguishing systems shall be installed to protect the following spaces:

(1) The machinery and fuel tank spaces of all vessels using gasoline or other fuel having a flash point of 110° F. or lower, except that where machinery and fuel tank spaces are so open to the atmosphere as to make the use of a fixed system ineffective, no such system will be required.

(2) The paint and oil rooms and similar hazardous spaces on all vessels having such spaces.

(3) Cargo spaces which are inaccessible during a voyage and used for combustible cargo on all vessels having such spaces.

§ 181.20-5 Type system required.

(a) Except as otherwise provided in this section, all fixed fire extinguishing systems shall be of an approved carbon dioxide type and installed to the satisfaction of the Officer in Charge, Marine Inspection.

(b) On vessels where the amount of carbon dioxide gas required in a fixed system can be supplied by one portable extinguisher or by a semi-portable extinguisher, such extinguishers may be used subject to the following:

(1) Cylinders shall be installed in a fixed position outside the space protected.

(2) The applicator shall be installed in a fixed position so as to discharge into the space protected.

(3) Controls shall be installed in an accessible location outside the space protected.

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§ 181.20-10 Amount of CO2 gas required. (a) The number of ounds of carbon dioxide required for each space protected shall be determined as follows:

(1) For cargo spaces, the number of pounds required shall be equal to the gross volume of the space in cubic feet divided by a factor of 30.

(2) For machinery and fuel tank spaces, paint lockers, oil rooms and similar hazardous spaces, the number of pounds required for each space shall be equal to the gross volume of the space divided by the appropriate factor noted in Table 181.20-10(a)(2).

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(a) All controls and values for the operation of the system shall be outside the spaces protected and shall not be located in such space as might be cut off or made inaccessible in the event of fire in any of the spaces protected.

(b) Each branch line shall be fitted with an approved shutoff valve. Such shutoff valve shall be kept closed at all times except to operate the particular system.

(c) The arrangements shall be such that the entire charge to any space can be introduced into the space by the operation of one valve selecting the space, and one control for releasing at least the required amount of carbon dioxide. The controls shall be of an approved type and shall be located adjacent to the shutoff valve controls.

(d) Complete but simple instructions for the operation of the systems must be located in a conspicuous place at or near all pull boxes, stop valve controls and in the CO, cylinder storage room. On systems in which the CO2 cylinders are not within the protected space, these instructions must also include a schematic diagram of the system and instructions detailing alternate methods of discharging the system should the manual release or stop valve controls fail to operate. Each control valve to branch lines must be marked to indicate the related space served.

[CGFR 60-54, 25 FR 9330, Sept. 29, 1960, as amended by CGD 74-100R, 40 FR 6209, Feb. 10, 1975]

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(c) All piping, valves, and fittings of ferrous materials shall be protected inside and outside against corrosion.

(d) All dead-end lines shall extend at least 2 inches beyond the last orifice and shall be closed with cap or plug.

(e) All piping, valves, and fittings shall be securely supported, and where necessary, protected against injury.

(f) Drains and dirt traps shall be fitted where necessary to prevent the accumulation of dirt or moisture. Drains and dirt traps shall be located in accessible locations.

[CGFR 60-54, 25 FR 9330, Sept. 29, 1960, as amended by CGFR 62-17, 27 FR 9048, Sept. 11, 1962]

§ 181.20-25 Discharge outlets.

(a) Discharge outlets shall be of an approved type.

(b) The total area of all discharge outlets shall not exceed 85 percent nor be less than 35 percent of the nominal cylinder outlet area or the area of the supply pipe, whichever is smaller. The nominal cylinder outlet area in square inches shall be determined by multiplying the factor 0.0022 by the number of pounds of carbon dioxide required except that in no case shall this outlet area be less than 0.110 square inches.

§ 181.20-30 Cylinders.

(a) Cylinders shall be securely fastened and supported, and where necessary protected against injury.

(b) Cylinders shall be mounted in an upright position or inclined not more than 30° from the vertical. However, cylinders which are fitted with flexible or bent siphon tubes may be inclined not more than 80° from the vertical.

(c) All cylinders used for storing carbon dioxide shall be fabricated, tested, and marked in accordance with the regulations of the Interstate Commerce Commission (see § 176.25-25(c) of this subchapter).

(d) Cylinders shall be so mounted as to be readily accessible and capable of easy removal for recharging and inspection, including weighing.

(e) Where subject to moisture, cylinders shall be so installed as to provide a space of at least 2 inches between the flooring and the bottom of the cylinders.

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(b) The Officer in Charge, Marine Inspection, may permit the use of any approved fire extinguishers, including semiportable extinguishers, in lieu of those required by this section when in his opinion such extinguishers will provide equivalent fire protection.

(c) Vaporizing liquid type fire extinguishers containing carbon tetrachloride or chlorobromomethane or other toxic vaporizing liquids are not approved and are not permitted on any vessel.

[CGFR 60-54, 25 FR 9330, Sept. 29, 1960, as amended by CGFR 66-33, 31 FR 15299, Dec. 6, 1966; CGFR 68-65, 33 FR 19992, Dec. 28, 1968]

§ 181.30-5 Approved extinguishers.

(a) All portable fire extinguishers installed on vessels shall be of an approved type.

(R.S. 4491, as amended, secs. 8, 17, 54 Stat. 165, as amended, 166, as amended; 46 U.S.C. 489, 526g, 526p)

[CGFR 60-54, 25 FR 9330, Sept. 29, 1960, as amended by CGFR 68-32, 33 FR 5727, Apr. 12, 1968]

§ 181.30-10

Installation and location.

(a) Portable fire extinguishers shall be located so as to be convenient to the space protected.

(b) Portable fire extinguishers shall be installed and located to the satisfaction of the Officer in Charge, Marine Inspection.

(c) Portable fire extinguishers, which are required on their nameplates to be protected from freezing, Ishall not be located where freezing temperatures may be expected.

[CGFR 60-54, 25 FR 9330, Sept. 29, 1960, as amended by CGFR 62-17, 27 FR 9048, Sept. 11, 1962]

§ 181.30-12 Semiportable fire extinguish

ers.

(a) The frame or support of each semiportable fire extinguisher permitted under § 181.30-10(b) in lieu of a portable fire extinguisher required by Table 181.3001(a) must be welded or otherwise permanently attached to a bulkhead or deck.

(b) If an approved semiportable fire extinguisher has wheels and is not required by Table 181.30-01(a), it must be securely stowed when not in use to prevent it from rolling out of control under heavy sea conditions.

(46 U.S.C. 375, 390b, 416, 481, and 526p, 49 U.S.C. 1655; 49 CFR 1.46)

[CGD 77-039, 44 FR 34133, June 14, 1979]

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