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National
United States Regulations
46 CFR PART 76—FIRE PROTECTION EQUIPMENT
Title 46: Shipping
PART 76—FIRE PROTECTION EQUIPMENT
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Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1.
Source: CGFR 65–50, 30 FR 16940, Dec. 30, 1965, unless otherwise noted.
Subpart 76.01—Application
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§ 76.01-1 General.
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(a) The provisions of this part shall apply to all vessels except as specifically noted in this part.
(b) [Reserved]
§ 76.01-2 Incorporation by reference.
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(a) Certain material is incorporated by reference into this part with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 552(a). To enforce any edition other than that specified in paragraph (b) of this section, the Coast Guard must publish notice of change in the Federal Register and make the material available to the public. All approved material is on file at the National Archives and Records Administration (NARA). , and at the U.S. Coast Guard, Office of Design and Engineering Standards (G-MSE), 2100 Second Street SW., Washington, DC 20593–0001 and is available from the sources indicated in paragraph (b) of this section. For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(b) The material approved for incorporation by reference in this part and the sections affected are:
American Society for Testing and Materials (ASTM)
100 Barr Harbor Drive, West Conshohocken, PA 19428–2959.
ASTM F 1121–87 (1993), Standard Specification for International Shore Connections for Marine Fire Applications—76.10–10
National Fire Protection Association (NFPA)
1 Batterymarch Park, Quincy, MA 02269–9101
NFPA 13–1996, Standard for the Installation of Sprinkler Systems—76.25–1
[CGD 88–032, 56 FR 35824, July 29, 1991; 57 FR 31947, July 20, 1992, as amended by CGD 95–072, 60 FR 50463, Sept. 29, 1995; CGD 96-041, 61 FR 50729, Sept. 27, 1996; CGD 97–057, 62 FR 51045, 51204, Sept. 30, 1997; USCG–1999–5151, 64 FR 67181, Dec. 1, 1999; 69 FR 18803, Apr. 9, 2004]
§ 76.01-5 Equipment installed but not required.
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(a) Where fire detecting or extinguishing systems or equipment are not required, but are installed, the system or equipment and its installation shall meet the requirements of this part.
(b) [Reserved]
Subpart 76.05—Fire Detecting and Extinguishing Equipment, Where Required
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§ 76.05-1 Fire detecting systems.
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(a) Approved fire detecting systems shall be installed in locations as required by table 76.05–1(a) on the following vessels:
(1) Any vessel on an international voyage.
(2) Any vessel of more than 150 feet in length having sleeping accommodations for passengers.
Table 76.05-1(a)
------------------------------------------------------------------------
Fixed
Space Detecting systems extinguishing
systems
------------------------------------------------------------------------
Safety areas
Wheelhouse or fire-control None required \1\........ None required
room. \1\
Stairway and elevator do \1\.................. Do.\1\
enclosures.
Communication corridors....... do \1\.................. Do.\1\
Lifeboat embarkation and do...................... Do.
lowering stations.
Radio room.................... do \1\.................. Do.\1\
Accommodations
Staterooms, toilet spaces, do \1\.................. Do.\1\
isolated pantries, etc.
Offices, lockers, and isolated Electric, pneumatic, or Do.\1\
storerooms. automatic sprinkling\1\.
Public spaces................. None required with 20- Do.\1\
minute patrol. Electric,
pneumatic, or automatic
sprinkling with 1 hour
patrol\1\.
Open decks or enclosed None required............ Do.
promenades.
Service spaces
Galleys....................... do \1\.................. Do.\1\
Main pantries................. do \1\.................. Do.\1\
Motion picture booths and film Electric, pneumatic, or Do.\1\ \2\
lockers. automatic sprinkling\1\
\2\.
Paint and lamp rooms.......... Smoke detecting \3\...... Carbon
dioxide. \4\
Inaccessible baggage, mail, Smoke detecting \3\...... Carbon
and specie rooms and dioxide. \4\
storerooms.
Accessible baggage, mail, and Electric, pneumatic, or None
specie rooms and storerooms. automatic sprinkling.. required. \1\
Refrigerated storerooms....... None required............ Do.
Carpenter, valet, Electric, pneumatic, or Do.\1\
photographic, and printing automatic sprinkling..
shops, sales rooms, etc.
Machinery spaces
Coal fired boilers: Bunker and None required............ Do.\1\
boiler space.
Oil fired boilers: Spaces do...................... Carbon
containing oil fired boilers dioxide or
either main or auxiliary, foam.\5\
their fuel oil service pumps,
and/or such other fuel oil
units as the heaters,
strainers, valves, manifolds,
etc., that are subject to the
discharge pressure of the
fuel oil service pumps,
together with adjacent spaces
to which oil can drain.
Internal combustion or gas do...................... Carbon
turbine propelling machinery dioxide.\6\
spaces.
Electric propulsive motors or do...................... None
generators of open type. required.
Enclosed ventilating systems do...................... Carbon
for motors and generators of dioxide (in
electric propelling machinery. ventilating
system) \7\
Auxiliary spaces, internal do...................... Carbon
combustion or gas turbine. dioxide.\8\
Auxiliary spaces, electric do...................... None
motors or generators. required.
Auxiliary spaces, steam....... do...................... Do.
Trunks to machinery spaces.... do...................... Do.
Fuel tanks.................... do...................... Do.\9\
Cargo spaces
Inaccessible during voyage Smoke detecting.......... Carbon
(combustible cargo), dioxide.\4\
including trunks (excluding
tanks).
Accessible during voyage Smoke detecting, Automatic or
(combustible cargo). electric, pneumatic or manual
automatic sprinkling. sprinkling.
Vehicular deck (except where None required............ Manual
no overhead deck is 30 feet sprinkling.
in length or less).
Cargo oil tanks............... do...................... Carbon
dioxide or
foam.\4\
Specially suitable for Smoke detecting, Carbon
vehicles. electric, pneumatic or dioxide,
automatic sprinkling. automatic or
manual
sprinkling.
------------------------------------------------------------------------
\1\ Vessels of 100 gross tons and over contracted for on or before May
27, 1936, and having combustible joiner work; shall be fitted with an
automatic sprinkling system, except in relatively incombustible
spaces.
\2\ Sprinkler heads may be attached to sanitary system provided
electrical or pneumatic detecting is installed.
\3\ On vessels contracted for prior to November 19, 1952, electric or
pneumatic detecting may be substituted.
\4\ On vessels contracted for prior to January 1, 1962, a steam
smothering system may be accepted. However, although existing steam
smothering systems may be repaired, replaced, or extended, no new
system contracted for on or after January 1, 1962, will be permitted.
\5\ Protection of auxiliary boilers, fuel oil units, valves and
manifolds not required on vessels contracted for prior to November 19,
1952.
\6\ Not required on vessels of less than 300 gross tons (except on an
international voyage) using fuel with a flashpoint higher than 110
°F., where the space is normally manned.
\7\ Not required on vessels contracted for prior to November 19, 1952.
\8\ Not required on vessels of less than 300 gross tons nor on vessels
contracted for prior to November 19, 1952, except where fuel,
including starting fuel, has a flashpoint of 110 °F. or less.
\9\ Where fuel having a flashpoint of 110 °F. or lower is used, the
space containing the fuel tanks shall be protected by a carbon dioxide
system.
(3) Any vessel of 150 feet or less in length, not on an international voyage, having sleeping accommodations for 50 or more passengers. Vessels in this category are not required to have a detecting system in the cargo spaces.
(b) The arrangements and details of the fire detecting systems shall be as set forth in subparts 76.25 through 76.33.
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGFR 65–33, 31 FR 15282, Dec. 6, 1966]
§ 76.05-5 Manual alarm system.
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(a) An approved manual alarm system shall be installed in all areas, other than the main machinery spaces, which are normally accessible to the passengers or crew on any vessel having sleeping accommodations for passengers or on any vessel on an international voyage.
(b) The arrangement and details of the manual alarm system shall be as set forth in subpart 76.35.
§ 76.05-10 Supervised patrol system.
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(a) A supervised patrol or watchman system shall be provided on all vessels as set forth in §§78.30–10 and 78.30–15 of this subchapter.
(b) [Reserved]
§ 76.05-15 Fire main system.
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(a) Fire pumps, hydrants, hose, and nozzles shall be installed on the following vessels:
(1) On all self-propelled vessels.
(2) After July 1, 1957, on all barges with sleeping accommodations for more than six persons.
(b) The arrangement and details of the fire main system shall be as set forth in subpart 76.10.
§ 76.05-20 Fixed fire extinguishing systems.
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Approved fire extinguishing systems must be installed, as required by table 76.05–1(a) on all self-propelled vessels and on all barges with sleeping accommodations for more than six persons. Previously approved installations may be retained as long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection.
[CGD 95–027, 61 FR 35138, July 5, 1996]
§ 76.05-25 Hand portable fire extinguishers and semiportable fire extinguishing systems.
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(a) Approved hand portable fire extinguishers and semiportable fire extinguishing systems shall be installed on all vessels as set forth in subpart 76.50.
(b) [Reserved]
Subpart 76.10—Fire Main System, Details
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§ 76.10-1 Application.
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(a) The provisions of this subpart, with the exception of §76.10–90, shall apply to all fire main installations contracted for on or after May 26, 1965. Installations contracted for prior to May 26, 1965, shall meet the requirements of §76.10–90.
(b) [Reserved]
§ 76.10-3 Water availability.
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(a) On all vessels on an international voyage, regardless of the date of construction, water pressure from the firemain protecting enclosed spaces shall be immediately available by maintenance of water pressure on the firemain at all times when passengers are aboard the vessel, or by remote control of fire pumps which control shall be easily operable and readily accessible.
(b) Where approved remote controls are not installed, an alarm shall be fitted which will sound in the engine room indicating a drop of water pressure on the system.
[CGFR 67–87, 32 FR 19181, Dec. 20, 1967]
§ 76.10-5 Fire pumps.
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(a) Vessels shall be equipped with independently driven fire pumps in accordance with table 76.10–5(a).
Table 76.10-5(a)
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Gross tons Minimum number of Hose
----------------------------------------------------------------- pumps and Nozzle Length
---------------------- hydrant orifice of
Over Not International size, size, hose,
over voyage Other inches inches feet
----------------------------------------------------------------------------------------------------------------
100 2 1 1\1/2\ \1/2\ 50
100..................................................... 500 2 1 1\1/2\ \5/8\ 50
500..................................................... 1,500 2 2 1\1/2\ \5/8\ 50
1,500................................................... 4,000 2 2 \1\ 2\1/ \1\ \7/ \1\ 50
2\ 8\
4,000................................................... ...... 3 3 \1\ 2\1/ \1\ \7/ \1\ 50
2\ 8\
----------------------------------------------------------------------------------------------------------------
\1\ 75 feet of 1\1/2\-inch hose and \5/8\-inch nozzles may be used where specified by § 76.10-10(b).
(b) Vessels on an international voyage shall have a minimum total fire pump capacity at least equal to two-thirds of the required total bilge pump capacity, but in no case less than that required by this section. Each of the required fire pumps shall have a capacity not less than 80 percent of the total required capacity divided by the number of required pumps.
(c) Each pump shall be capable of delivering water simultaneously from the two highest outlets at a Pitot tube pressure of approximately 50 p. s. i. Where one or both of these outlets is a 1 1/2-inch siamese fitting, both branches of the siamese fitting at each such outlet shall be utilized for the purpose of this requirements.
(d) Fire pumps shall be fitted on the discharge side with relief valves set to relieve at 25 p. s. i. in excess of the pressure necessary to maintain the requirements of paragraph (c) of this section or 125 p. s. i., whichever is greater. Relief valves may be omitted if the pumps, operating under shutoff conditions, are not capable of developing a pressure exceeding this amount.
(e) Fire pumps shall be fitted with a pressure gauge on the discharge side of the pumps.
(f) Fire pumps may be used for other purposes provided at least one of the required pumps is kept available for use on the fire system at all times. In no case shall a pump having connection to an oil line be used as a fire pump. Branch lines connected to the fire main for purposes other than fire and deck wash shall be arranged so that the requirements of paragraphs (b) and (c) of this section and any other services installed on the fire main can be met simultaneously.
(g) The total area of the pipes leading from a pump shall not be less than the discharge area of the pump.
(h) On vessels with oil fired boilers, either main or auxiliary, or with internal combustion propulsion machinery, where 2 fire pumps are required, they shall be located in separate spaces and the arrangement of pumps, sea connections, and sources of power shall be such as to insure that a fire in any one space will not put all of the fire pumps out of operation. However, in vessels of less than 300 feet in length, where it is shown to the satisfaction of the Commandant that it is unreasonable or impracticable to meet this requirement due to the size or arrangement of the vessel, or for other reasons, the installation of a total flooding carbon dioxide system may be accepted as an alternate method of extinguishing any fire which would affect the powering and operation of at least one of the required fire pumps.
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGD 95–028, 62 FR 51204, Sept. 30, 1997]
§ 76.10-10 Fire station hydrants, hose and nozzles-T/ALL.
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(a) The size of fire hydrants, hose, and nozzles and the length of hose required shall be as noted in table 76.10–5(a).
(b) In lieu of the 2 1/2-inch hose and hydrants specified in table 76.10–5(a), on vessels over 1,500 gross tons, the hydrants in interior locations may have siamese connections for 1 1/2-inch hose. In these cases the hose shall be 75 feet in length, and only one hose will be required at each fire station; however, if all such stations can be satisfactorily served with 50-foot lengths, 50-foot hose may be used.
(c) On vessels of 500 gross tons and over there must be at least one shore connection to the fire main available to each side of the vessel in an accessible location. Suitable cut-out valves and check valves must be provided. Suitable adaptors also must be provided for furnishing the vessel's shore connections with couplings mating those on the shore fire lines. Vessels of 500 gross tons and over on an international voyage, must be provided with at least one international shore connection complying with ASTM F 1121 (incorporated by reference, see §76.01–2). Facilities must be available enabling an international shore connection to be used on either side of the vessel.
(d) Fire hydrants shall be of sufficient number and so located that any part of the vessel, other than main machinery spaces, accessible to the passengers or crew while the vessel is being navigated and all cargo holds may be reached with at least two streams of water from separate outlets, at least one of which shall be from a single length of hose. For the purpose of this requirement, all watertight doors and all doors in main vertical zone bulkheads and stairway enclosures shall be closed, although hose ports may be installed in doors other than watertight doors and doors in main vertical zone bulkheads for the passage of the hose. In main machinery spaces, all portions at such spaces shall be capable of being reached by at least two streams of water, each of which shall be from a single length of hose from separate outlets; however, this requirement need not apply to shaft alleys containing no assigned space for the stowage of combustibles. Fire hydrants shall be numbered as required by §78.47–20 of this subchapter.
(e) All parts of the fire main located on exposed decks shall either be protected against freezing or be fitted with cut-out valves and drain valves so that the entire exposed parts of such piping may be shut off and drained in freezing weather. Except when closed to prevent freezing, such valves shall be sealed open.
(f) The outlet at each fire hydrant shall be provided with a cock or valve fitted in such a position that the fire hose may be removed while the firemain is under pressure. In addition, the outlet shall be limited to any position from the horizontal to the vertical pointing downward, so that the hose will lead horizontally or downward to minimize the possibility of kinking.
(g) Each fire hydrant must have at least one length of fire hose, a spanner, and a hose rack or other device for stowing the hose.
(h) Fire hose shall be connected to the outlets at all times. However, on open decks where no protection is afforded to the hose in heavy weather, or where the hose may be liable to damage from the handling of cargo the hose may be temporarily removed from the hydrant and stowed in an accessible nearby location.
(i) Fire hose shall not be used for any other purpose than fire extinguishing and fire drills.
(j) Each firehose on each hydrant must have a combination solid stream and water spray firehose nozzle that meets the requirements in subpart 162.027 of this chapter. Firehose nozzles previously approved under subpart 162.027 of this chapter may be retained so long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection.
(k) Firehose nozzles previously approved under subpart 162.027 of this chapter must have low-velocity water spray applicators also previously approved under subpart 162.027 of this chapter as follows—
(1) In accommodation and service areas—two firehoses; and
(2) In each propulsion machinery space containing an oil-fired boiler, internal combustion machinery, or oil fuel unit on a vessel on an international voyage or of 1000 gross tons or more—each firehose. The length of each applicator must be not more than 1.8 meters (6 feet).
(l) Fixed brackets, hooks, or other means for stowing an applicator must be next to each fire hydrant that has an applicator under paragraph (k) of this section.
(m) Fire hydrants, nozzles, and other fittings shall have threads to accommodate the hose connections noted in paragraph (l) of this section.
(n) Firehose and couplings must be as follows:
(1) Fire station hydrant connections shall be brass, bronze, or other equivalent metal. Couplings shall either—
(i) Use National Standard fire hose coupling threads for the 1 1/2 inch (38 millimeter) and 2 1/2 inch (64 millimeter) hose sizes, i.e., 9 threads per inch for 1 1/2 inch hose, and 7 1/2 threads per inch for 2 1/2 inch hose; or
(ii) Be a uniform design for each hose diameter throughout the vessel.
(2) Each section of firehose must be lined commercial firehose that conforms to Underwriters' Laboratories, Inc. Standard 19 or Federal Specification ZZ-H-451E. Hose that bears the label of Underwriters' Laboratories, Inc. as lined firehose is accepted as conforming to this requirement.
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGFR 67–87, 32 FR 19181, Dec. 20, 1967; CGD 74–60, 41 FR 43151, Sept. 30, 1976; CGD 76–086, 44 FR 2392, Jan. 11, 1979; CGD 88–032, 56 FR 35825, July 29, 1991; CGD 95–012, 60 FR 48051, Sept. 18, 1995; CGD 95–027, 61 FR 26004, May 23, 1996; CGD 95–028, 62 FR 51204, Sept. 30, 1997; USCG–2000–7790, 65 FR 58461, Sept. 29, 2000]
§ 76.10-15 Piping.
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(a) All piping, valves, and fittings shall meet the applicable requirements of subchapter F (Marine Engineering) of this chapter.
(b) All distribution cut-off valves shall be marked as required by §78.47–15 of this subchapter.
(c) For vessels on an international voyage, the diameter of the fire main shall be sufficient for the effective distribution of the maximum required discharge from two fire pumps operating simultaneously. This is in addition to §76.10–5(c). The discharge of this quantity of water through hoses and nozzles at a sufficient number of adjacent hydrants shall be at a minimum Pitot tube pressure of approximately 50 pounds per square inch.
§ 76.10-90 Installations contracted for prior to May 26, 1965.
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(a) Installations contracted for prior to May 26, 1965, shall meet the following requirements:
(1) Except as specifically modified by this paragraph, the requirements of §§76.10–5 through 76.10–15 shall be complied with insofar as the number and general type of equipment is concerned. Existing equipment, except firehose nozzles and low-velocity water spray applicators, previously approved but not meeting the applicable requirements of §§76.10–5 through 76.10–15 may be continued in service so long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection. Minor repairs, alterations, and replacements may be permitted to the same standards as the original installation. However, all new installations or major replacements shall meet the applicable requirements in this part.
(2) All vessels contracted for prior to November 19, 1952, shall be fitted with fire pumps, hoses, and nozzles in accordance with table 76.10–90(a)(2).
Table 76.10-90(a)(2)
------------------------------------------------------------------------
Gross tons Minimum
-------------------------------------- Minimum hose Nozzle Length
number and orifice of
Not of hydrant size, hose,
Over over pumps size, inches feet
inches
------------------------------------------------------------------------
100......................... 4,000 2 \1\ 1\1/ \1\ \5/ \1\ 50
2\ 8\
4,000....................... ....... 3 \1\ 1\1/ \1\ \5/ \1\ 50
2\ 8\
------------------------------------------------------------------------
\1\ May use 50 feet of 2\1/2\-inch hose with \7/8\-inch nozzles for
exterior stations. May use 75 feet of 1\1/2\-inch hose with \5/8\-inch
nozzles for interior station in which case such interior stations
shall have siamese connections.
(3) When reasonable and practicable, where two or more fire pumps are required, they shall not all be located in the same space. Vessels on an international voyage shall, however, comply with the requirements of §76.10–5(h).
(4) The general requirements of §76.10–5(c) through (h), §76.10–10(d) through (i), and §76.10–15, shall be complied with insofar as is reasonable and practicable. In addition, vessels on an international voyage shall comply with the requirements of §76.10–5(b).
(5) Vessels on an international voyage shall comply with the requirements of §76.10–3.
(6) Firehose nozzles and low-velocity spray applicators must meet the requirements of §§76.10–10(j), 76.10–10(k), and 76.10–10(l)
(b) [Reserved]
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGFR 67–87, 32 FR 19181, Dec. 20, 1967; CGD 76–086, 44 FR 2392, Jan. 11, 1979; CGD 95–027, 61 FR 26004, May 23, 1996; USCG–2000–7790, 65 FR 58461, Sept. 29, 2000]
Subpart 76.13—Steam Smothering Systems
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§ 76.13-1 Application.
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Steam smothering systems are not permitted on vessels contracted for on or after January 1, 1962. Previously approved installations may be retained as long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection.
[CGD 95–027, 61 FR 26004, May 23, 1996]
§ 76.13-90 Installations contracted for prior to January 1, 1962.
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(a) Installations contracted for prior to July 1, 1935, shall meet the following requirements:
(1) Existing arrangements, materials, and facilities previously approved will be considered satisfactory so long as they meet the minimum requirements of this paragraph and they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection. Minor repairs and alterations may be made to the same standard as the original installation.
(2) The main pipes and their branches to the cargo compartments and similar spaces shall be not less than 1 1/2-inch pipe size and shall emanate from not more than two stations in easily accessible locations. If located on the open deck, the distribution manifolds shall be suitably protected by an enclosing cabinet or casing which shall be marked as required by §78.47–17 of this subchapter. Each branch line shall have a valve at the manifold which shall be marked as required by §78.47–15 of this subchapter.
(3) Branches to paint lockers and similar small spaces may be taken from the nearest stream supply line and shall be not less than 3/4-inch pipe size. The valve shall be marked as required by §78.47–15 of this subchapter.
(b) Installations contracted for on or after July 1, 1935, but prior to November 19, 1952, shall meet the following requirements:
(1) Existing arrangements, materials and facilities previously approved will be considered satisfactory so long as they meet the minimum requirements of this paragraph and they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection. Minor repairs, and alterations may be made to the same standard as the original installation.
(2) Steam shall be available from the main or auxiliary boilers to provide at least one pound of steam per hour for each 50 cubic feet of gross volume of the largest compartment protected. Where reasonable and practicable, the steam pressure shall be at least 100 p.s.i.
(3) The piping system shall meet the general requirements of paragraphs (c)(5) through (12) of this section insofar as is reasonable and practicable.
(4) The minimum size of distribution piping and the number of branches to the various spaces shall be as given in table 76.13–90(b)(4) or by the following formula:
D=vC/30,000 (1)
where:
D=Required diameter of pipe in inches.
C=Volume of compartment in cubic feet.
Table 76.13-90(b)(4)
------------------------------------------------------------------------
Volume of compartment in cubic feet Pipe size
------------------------------------------------- Number of of each
branches to branch,
Over Not over compartment inches
------------------------------------------------------------------------
30,000 1 1
30,000............................... 46,000 1 1\1/4\
46,000............................... 67,000 1 1\1/2\
67,000............................... 94,000 ........... 1\1/4\
94,000............................... 135,000 2 1\1/2\
135,000.............................. 203,000 3 1\1/2\
------------------------------------------------------------------------
(5) The minimum size of the steam supply line from the boiler to the distribution and manifold shall be as given by the following formula:
D=vC/60,000
(2)
where:
D=Diameter of pipe in inches.
C=Volume of all compartments in cubic feet.
(c) Installations contracted for on or after November 19, 1952, but prior to January 1, 1962, shall meet the following requirements:
(1) Existing arrangements, materials and facilities previously approved will be considered satisfactory so long as they meet the minimum requirements of this paragraph and they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection. Minor repairs and alterations may be made to the same standard as the original installation.
(2) Steam shall be available from main or auxiliary boilers to provide at least one pound of steam per hour for each 12 cubic feet of the gross volume of the largest compartment to be protected.
(3) Although separate piping shall be led to each cargo hold and 'tween deck, for the purpose of determining the amount of steam required, a cargo compartment will be considered as the space between adjacent watertight or firescreen bulkheads and from tank top or lowest deck to the deck head of the uppermost deck on which cargo may be carried. If a trunk extends beyond such deck, the trunk space shall be included. Tonnage openings shall be considered as sealed for this purpose.
(4) A steam pressure of at least 100 p.s.i. shall be available unless specifically approved otherwise.
(5) All piping, valves, and fittings shall meet the applicable requirements of subchapter F (Marine Engineering) of this chapter.
(6) The distribution piping shall emanate from not more than three stations in easily accessible locations on the weather deck, and shall lead to the lower portion of each cargo hold, cargo 'tween deck, and other compartments protected. However, lines to paint lockers and similar small spaces may be taken from the nearest steam supply line.
(7) The distribution line to each compartment shall be fitted with a shutoff valve. The valve shall be marked as required by §78.47–15 of this subchapter.
(8) The manifold steam supply line shall be fitted with a master valve at the manifold.
(9) Provisions shall be made for draining the manifold and distribution lines to prevent them from freezing.
(10) If located on the open deck, the distribution manifolds shall be suitably protected by an enclosing cabinet or casing. In any case, it shall be marked as required by §78.47–17 of this subchapter.
(11) Piping shall not be led into or through spaces accessible to the passengers or crew while the vessel is being navigated, with the exception of machinery spaces and corridors. However, in special cases, arrangements to run piping through such spaces may be specifically approved by the Commandant, provided all joints are welded, suitable expansion bends are provided, and all piping is extra heavy.
(12) Piping shall be used for no other purpose except that it may be incorporated with the fire detecting system, and where suitable provisions are made, it may be used for steaming out tanks.
(13) The minimum size and number of branches to the various spaces shall be as given in table 76.13–90(c)(13). The distribution piping from the manifold to the branch lines shall have an area approximately equal to the combined areas of the branch lines served.
Table 76.13-90(c)(13)
------------------------------------------------------------------------
Volume of spaces in cubic feet Pipe size
--------------------------------------------------- Number of of each
branches branch,
Over Not over to spaces inches
------------------------------------------------------------------------
500 1 \3/4\
500.................................... 5,000 1 1
5,000.................................. 15,000 1 1\1/4\
15,000................................. 30,000 1 1\1/2\
30,000................................. 60,000 2 1\1/2\
60,000................................. 100,000 3 1\1/2\
100,000................................ 190,000 4 1\1/2\
------------------------------------------------------------------------
(14) The steam supply line from the boiler to any distribution manifold shall be of sufficient size to supply all the branch lines to the largest compartment and to all adjacent compartments.
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGFR 66–33, 31 FR 15283, Dec. 6, 1966]
Subpart 76.15—Carbon Dioxide Extinguishing Systems, Details
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§ 76.15-1 Application.
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(a) Where a carbon dioxide extinguishing system is installed, the provisions of this subpart, with the exception of §76.15–90, shall apply to all installations contracted for on or after November 19, 1952. Installations contracted for prior to November 19, 1952, shall meet the requirements of §76.15–90.
(b) The requirements of this subpart are based on a “high pressure system”, i.e., one in which the carbon dioxide is stored in liquid form at atmospheric temperature. Details for “low pressure systems”, i.e., those in which the carbon dioxide is stored in liquid form at a continuously controlled low temperature, may be specifically approved by the Commandant where it is demonstrated that a comparable degree of safety and fire extinguishing ability is achieved.
§ 76.15-5 Quantity, pipe sizes, and discharge rate.
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(a) General. The amount of carbon dioxide required for each space shall be as determined by the following paragraphs in this section.
(b) Total available supply. A separate supply of carbon dioxide need not be provided for each space protected. The total available supply shall be at least sufficient for the space requiring the greatest amount.
(c) Cargo spaces. (1) The number of pounds of carbon dioxide required for each space in cubic feet shall be equal to the gross volume of the space in cubic feet divided by 30.
(2) Although separate piping shall be led to each cargo hold and 'tween deck, for the purpose of determining the amount of carbon dioxide required, a cargo compartment will be considered as the space between adjacent watertight or firescreen bulkheads and from the tank top or lowest deck to the deck head of the uppermost space on which cargo may be carried. If a trunk extends beyond such deck, the trunk volume shall be included. Tonnage openings shall be considered as sealed for this purpose.
(3) Branch lines to the various cargo holds and 'tween decks shall not be less than 3/4 inch standard pipe size.
(4) No specific discharge rate need be applied to such systems.
(d) Machinery spaces, paint lockers, tanks, and similar spaces. (1) Except as provided in paragraph (d)(3) of this section, the number of pounds of carbon dioxide required for each space shall be equal to the gross volume of the space divided by the appropriate factor noted in table 76.15–5(d)(1). If fuel can drain from the compartment being protected to an adjacent compartment, or if the compartments are not entirely separate, the requirements for both compartments shall be used to determine the amount of carbon dioxide to be provided. The carbon dioxide shall be arranged to discharge into both such compartments simultaneously.
Table 76.15-5(d)(1)
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Gross volume of compartment, cubic feet
-------------------------------------------------------------- Factor
Over Not over
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500 15
500............................................... 1,600 16
1,600............................................. 4,500 18
4,500............................................. 50,000 20
50,000............................................ ......... 22
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(2) For the purpose of the above requirement of this paragraph, the volume of a machinery space shall be taken as exclusive of the normal machinery casing unless the boiler, internal combustion machinery, or fuel oil installations extend into such space in which case the volume shall be taken to the top of the casing or the next material reduction in casing area, whichever is lower. For installations contracted for on or after October 1, 1959, “normal machinery casing” and “material reduction in casing area” shall be defined as follows:
(i) By “normal machinery casing” shall be meant a casing the area of which is not more than 40 percent of the maximum area of the machinery space.
(ii) By “material reduction in casing area” shall be meant a reduction to at least 40 percent of the casing area.
(3) For vessels on an international voyage contracted for on or after May 26, 1965, the amount of carbon dioxide required for a space containing propulsion boilers or internal combustion propulsion machinery shall be as given by paragraphs (d) (1) and (2) of this section or by dividing the entire volume, including the casing, by a factor of 25, whichever is the larger.
(4) Branch lines to the various spaces shall be as noted in table 76.15–5(d)(4).
Table 76.15-5(d)(4)
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Minimum Minimum
nominal Maximum quantity of nominal
Maximum quantity of carbon pipe carbon dioxide pipe
dioxide required, pounds size, required, pounds size,
inches inches
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100.............................. \1/2\ 2,500.............. 2\1/2\
225.............................. \3/4\ 4,450.............. 3
300.............................. 1 7,100.............. 3\1/2\
600.............................. 1\1/4\ 10,450............. 4
1,000............................ 1\1/2\ 15,000............. 4\1/2\
2,450............................ 2
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(5) Distribution piping within the space shall be proportioned from the supply line to give proper distribution to the outlets without throttling.
(6) The number, type, and location of discharge outlets shall be such as to give a uniform distribution throughout the space.
(7) 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 inch.
(8) The discharge of at least 85 percent of the required amount of carbon dioxide shall be complete within 2 minutes.
(e) Spaces specially suitable for vehicles. (1) The number of pounds of carbon dioxide required shall be equal to the gross volume of the largest “tight” space divided by 22. In no case, however, shall it be less than that required by paragraph (c) of this section.
(2) The arrangement of valves and piping shall be such that the required quantity of carbon dioxide may be discharged into any “tight” space. The discharge of the required quantity of carbon dioxide shall be completed within 2 minutes.
(3) Except as noted in paragraphs (e) (1) and (2) of this section, the requirements of paragraph (e) of this section shall apply.
[CGFR 65–50, 30 FR 16940, Dec. 30, 1965, as amended by CGFR, 66–33, 31 FR 15283, Dec. 6, 1966; CGD 95–028, 62 FR 51204, Sept. 30, 1997; USCG–1999–6216, 64 FR 53225, 53226, Oct. 1, 1999]
§ 76.15-10 Controls.
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(a) Except as noted in §76.15–20(b), all controls and valves for the operation of the system shall be outside the space protected, and shall not be located in any space that might be cut off or made inaccessible in the event of fire in any of the spaces protected.
(b) If the same cylinders are used to protect more than one hazard, a manifold with normally closed stop valves shall be used to direct the carbon dioxide into the proper space. If cylinders are used to protect only one hazard, a normally closed stop valve shall be installed between the cylinders and the hazard except for systems of the type indicated in §76.15–5(d) which contain not more than 300 pounds of carbon dioxide.
(c) Distribution piping to the various cargo spaces shall be controlled from not more than two stations. One of the stations controlling the system for the main machinery space shall be located as convenient as practicable to one of the main escapes from the space. All control stations and the individual valves and controls shall be marked as required by §§78.47–15 and 78.47–17 of this subchapter.
(d) Systems of the type indicated in §76.15–5(d) shall be actuated by one control operating the valve to the space and a separate control releasing at least the required amount of carbon dioxide. These two controls shall be located in a box or other enclosure clearly identified for the particular space. Those systems installed without a stop valve shall be operated by one control releasing at least the required amount of carbon dioxide.
(e) Where provisions are made for the simultaneous release of a given amount of carbon dioxide by operation of a remote control, provisions shall also be made for manual control at the cylinders. Where gas pressure from pilot cylinders is used as a means for releasing the remaining cylinders, not less than two pilot cylinders shall be used for systems consisting of more than two cylinders. Each of the pilot cylinders shall be capable of manual control at the cylinder, but the remaining cylinders need not be capable of individual manual control.
(f) Systems of the type indicated in §76.15–5(d), other than systems for tanks, which are of more than 300 pounds of carbon dioxide, shall be fitted with an approved delayed discharge so arranged that the alarm will be sounded for at least 20 seconds before the carbon dioxide is released into the space. Such systems of not more than 300 pounds of carbon dioxide shall also have a similar delayed discharge, except for those systems for tanks and for spaces which have a suitable horizontal escape. This paragraph shall be applicable only to systems installed on or after July 1, 1957.
(g) All distribution valves and controls shall be of an approved type. All controls shall be suitably protected.
(h) 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 CO2 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.
(i) If the space or enclosure containing the carbon dioxide supply or controls is to be locked, a key to the space or enclosure shall be in a break-glass-type box conspicuously located adjacent to the opening.
[CGFR 65–60, 30 FR 16940, Dec. 30, 1965, as amended by CGD 74–100R, 40 FR 6209, Feb. 10, 1975; USCG–1999–6216, 64 FR 53226, Oct. 1, 1999]
§ 76.15-15 Piping.
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(a) The piping, valves, and fittings shall have a bursting pressure of not less than 6,000 p.s.i.
(b) All piping, in nominal sizes not over 3/4 inch, shall be at least Schedule 40 (standard weight), and in nominal sizes over 3/4 inch, shall be at least Schedule 80 (extra heavy).
(c) All piping, valves, and fittings of ferrous materials shall be protected inside and outside against corrosion unless specifically approved otherwise by the Commandant.
(d) A pressure relief valve or equivalent set to relieve between 2,400 and 2,800 p.s.i. shall be installed in the distributing manifold or such other location as to protect the piping in the event that all branch line shut-off valves are closed.
(e) All dead end lines shall extend at least 2 inches beyond the last orifice and shall be closed with cap or plug.
(f) All piping, valves, and fittings shall be securely supported, and where necessary, protected against injury.
(g) 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 where possible.
(h) Piping shall be used for no other purpose except that it may be incorporated with the fire detecting system.
(i) Piping passing through living quarters shall not be fitted with drains or other openings within such spaces.
(j) Installation test requirements:
(1) Upon completion of the piping installation, and before the cylinders are connected, a pressure test shall be applied as set forth in this paragraph. Only carbon dioxide or other inert gas shall be used for this test.
(2) The piping from the cylinders to the stop valves in the manifold shall be subjected to a pressure of 1,000 p.s.i. With no additional gas being introduced to the system, it shall be demonstrated that the leakage of the system is such as not to permit a pressure drop of more than 150 p.s.i. per minute for a 2-minute period.
(3) The individual branch lines to the various spaces protected shall be subjected to a test similar to that described in the preceding paragraph with the exception that the pressure used shall be 600 p.s.i. in lieu of 1,000 p.s.i. For the purpose of this test, the distribution piping shall be capped within the space protected at the first joint ahead of the nozzles.
(4) In lieu of the tests prescribed in the preceding paragraphs in this section, small independent systems protecting spaces such as emergency generator rooms, lamp lockers, etc., may be tested by blowing out the piping with air at a pressure of at least 100 p.s.i.
§ 76.15-20 Carbon dioxide storage.
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(a) Except as provided in paragraph (b) of this section, the cylinders shall be located outside the spaces protected, and shall not be located in any space that might be cut off or made inaccessible in the event of a fire in any of the spaces protected.
(b) Systems of the type indicated in §76.15–5(d),consisting of not more than 300 pounds of carbon dioxide, may have the cylinders located within the space protected. If the cylinder stowage is within the space protected, the system shall be arranged in an approved manner to be automatically operated by a heat actuator within the space in addition to the regular remote and local controls. (continued)
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