TABLE 2-FIRE INTEGRITY OF DECKS SEPARATING ADJACENT SPACES
|-----------------------------------------------------------------------------------------------------
| Space Space | | | | | | | | | | |
| ↓ → | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10)|
| Below Above | | | | | | | | | | |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Control Stations (1) | A-0 | A-0 | A-0 | A-0 | A-0 | A-60| A-0 | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Corridors (2) | A-0 | * | * | A-0 | * | A-60| A-0 | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Accommodation Spaces (3) | A-60| A-0 | * | A-0 | * | A-60| A-0 | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Stairways (4) | A-0 | A-0 | A-0 | * | A-0 | A-60| A-0 | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Service Spaces of Low Fire Risk (5) | A-15| A-0 | A-0 | A-0 | * | A-60| A-0 | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Machinery Spaces of Category A (6) | A-60| A-60| A-60 | A-60| A-60| * | A-60| A-30| A-60| * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Other Machinery Spaces (7) | A-15| A-0 | A-0 | A-0 | A-0 | A-0 | * | A-0 | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Cargo Spaces (8) | A-60| A-0 | A-0 | A-0 | A-0 | A-0 | A-0 | * | A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | d)| |
| Service Spaces of High Fire Risk (9) | A-60| A-0 | A-0 | A-0 | A-0 | A-0 | A-0 | A-0 |A-0 | * |
|---------------------------------------|-----|-----|------|-----|-----|-----|-----|-----|-----|-----|
| | | | | | | | | | | |
| Open Decks (10) | * | * | * | * | * | * | * | * | * | - |
|-----------------------------------------------------------------------------------------------------
Notes: To be applied to both Tables 1 and 2, as appropriate.
a) No special requirements are imposed upon these bulkheads in
Methods IIF and IIIF fire protection.
b) In case of Method IIIF "B" Class bulkheads of "B-0" rating
shall be provided between spaces or groups of spaces of 50 square metresand over in area.
c) For clarification as to which applies see Regulations 65 and 66.
d) Where spaces are of the same numerical category and superscript
d) appears, a bulkhead or deck of the rating shown in the Tables is onlyrequired when the adjacent spaces are for a different purpose, e.g. in
category (9). A galley next to a galley does not require a bulkhead but a
galley next to a paint room requires an "A-0" bulkhead.
e) Bulkheads separating the wheelhouse, chartroom and radio room
from each other may be "B-0" rating.
* Where an asterisk appears in the Tables the division is required
to be of steel or equivalent material but is not required to be of "A"
Class standard.
(3) Continuous "B" Class ceilings or linings, in association with the
relevant decks or bulkheads, may be accepted as contributing, wholly orin part, to the required insulation and integrity of a division.
(4) Windows and skylights to machinery spaces shall be as follows:
(a) where skylights can be opened they shall be capable of being
closed from outside the space. Skylights containing glass panels shall be
fitted with external shutters of steel or other equivalent material
permanently attached.
(b) glass or similar materials shall not be fitted in machinery
space boundaries. This does not preclude the use of wire-reinforced glass
for skylights and glass in control rooms within the machinery spaces; and
(c) in skylights referred to in sub-paragraph (a) wire-reinforced
glass shall be used.
(5) External boundaries which are required by Regulation 64(1) to be
of steel or equivalent material may be pierced for the fitting of windows
and side-scuttles provided that there is no requirement elsewhere in this
Part for such boundaries to have "A" Class integrity. Similarly, in such
boundaries which are not required to have "A" Class integrity, doors maybe of materials to the satisfaction of the Administration.
Regulation 69 Details of Construction
(1) Method IF. In accommodation and service spaces and control
stations all linings, draught stops, ceilings and their associated
grounds shall be of non-combustible materials.
(2) Methods IIF and IIIF. In corridors and stairway enclosures serving
accommodation and service spaces and control stations, ceilings, linings,
draught stops and their associated grounds shall be of non-combustible
materials.
(3) Methods IF, IIF and IIIF
(a) Except in cargo spaces or refrigerated compartments of service
spaces insulating materials shall be non-combustible. Vapour barriers and
adhesives used in conjunction with insulation, as well as the insulationof pipe fittings, for cold service systems need not be of non-combustible
material, but they shall be kept to the minimum quantity practicable andtheir exposed surfaces shall have qualities of resistance to the
propagation of flame to the satisfaction of the Administration. In spaces
where penetration of oil products is possible, the surface of insulationshall be impervious to oil or oil vapour.
(b) Where non-combustible bulkheads, linings and ceilings are
fitted in accommodation and service spaces they may have a combustible
veneer not exceeding 2.0 millimetres in thickness within any such space
except corridors, stairway enclosured and control stations, where it shall
not exceed 1.5 millimetres in thickness.
(c) Air spaces enclosed behind ceilings, panellings, or linings
shall be divided by close-fitting draught stops spaced not more than 14
metres apart. In the vertical direction, such spaces, including those
behind linings of stairways, trunks, etc., shall be closed at each deck.
Regulation 70 Ventilation Systems
(1) Where trunks or ducts serve spaces on both sides of "A" Class
bulkheads or decks, dampers shall be fitted so as to prevent the spreadof fire and smoke between compartments. Manual dampers shall be operablefrom both sides of the bulkhead or the deck. Where the trunks or ducts
with a free cross-sectional area exceeding 0.02 square metres pass through
"A" Class bulkheads or decks, automatic self-closing dampers shall be
fitted. Trunks serving compartments situated only on one side of such
bulkheads shall comply with paragraph (2) (b).
(2) (a) Ventilation ducts shall be of non-combustible material. Short
ducts, however, not generally exceeding 2 metres in length and with a
cross section not exceeding 0.02 square metres need not be
non-combustible, subject to the following conditions:
(i) these ducts shall be of a material which, to the
satisfaction of the Administration, has a low fire risk;
(ii) they may only be used at the end of the ventilation
device; and
(iii) they shall not be situated less than 600 millimetres,
measured along the duct, from an opening in an "A" or "B" Class division
including continuous "B" Class ceilings.
(b) Where the ventilation ducts with a free cross-sectional area
exceeding 0.02 square metres pass through "A" Class bulkheads or decks,
the opening shall be lined with a steel sheet sleeve unless the ducts
passing through the bulkheads or decks are of steel in the vicinity of
passage through the deck or bulkhead and comply in that portion of the
duct with the following:
(i) for ducts with a free cross-sectional area exceeding 0.02
square metres the sleeves shall have a thickness of at least 3 millimetres
and a length of at least 900 millimetres. When passing through bulkheadsthis length shall preferably be divided evenly on each side of the
bulkhead. Ducts with a free cross-sectional area exceeding 0.02 square
metres shall be provided with fire insulation. The insulation shall haveat least the same fire integrity as the bulkhead or deck through which the
duct passes. Equivalent penetration protection may be provided to the
satisfaction of the Administration; and
(ii) ducts with a free cross-sectional area exceeding 0.075
square metres shall be fitted with fire dampers in addition to the
requirements of sub-paragraph (b)(i). The fire damper shall operate
automatically but shall also be capable of being closed manually from both
sides of the bulkhead or deck. The damper shall be provided with an
indicator which shows whether the damper is open or closed. Fire dampersare not required, however, where ducts pass through spaces surrounded by"A" Class divisions, without serving those spaces, provided those ducts
have the same fire integrity as the bulkheads which they penetrate.
(c) Ventilation ducts for machinery spaces of Category A or
galleys shall not in general pass through accommodation spaces, service
spaces or control stations. Where the Administration permits this
arrangement, the ducts shall be constructed of steel or equivalent
material and so arranged as to preserve the integrity of the divisions.
(d) Ventilation ducts of accommodation spaces, service spaces or
control stations shall not in general pass through machinery spaces of
Category A or through galleys. Where the Administration permits this
arrangement the ducts shall be constructed of steel or equivalent material
and so arranged as to preserve the integrity of the divisions.
(e) Where ventilation ducts with a free cross-sectional area
exceeding 0.02 square metres pass through "B" Class bulkheads the openings
shall be lined with steel sheet sleeves of at least 900 millimetres in
length, unless the ducts are of steel for this length in way of the
bulkheads. When passing through a "B" Class bulkhead this length shall
preferably be divided evenly on each side of the bulkhead.
(f) Such measures as are practicable shall be taken in respect of
control stations outside machinery spaces in order to ensure that
ventilation, visibility and freedom from smoke are maintained, so that in
the event of fire the machinery and equipment contained therein may be
supervised and continue to function effectively. Alternative and separate
means of air supply shall be provided; air inlets of the two sources of
supply shall be so disposed that the risk of both inlets drawing in smoke
simultaneously is minimized. At the discretion of the Administration, such
requirements need not apply to control stations situated on, and openingon to, an open deck, or where local closing arrangements are equally
effective.
(g) Where they pass through accommodation spaces or spaces
containing combustible materials, the exhaust ducts from galley ranges
shall be constructed of "A" Class divisions. Each exhaust duct shall be
fitted with:
(i) a grease trap readily removable for cleaning;
(ii) a fire damper located in the lower end of the duct;
(iii) arrangements, operable from within the galley, for
shutting off the exhaust fan; and
(iv) fixed means for extinguishing a fire within the duct,
except where the Administration considers such fittings impractical in avessel of less than 75 metres in length.
(3) The main inlets and outlets of all ventilation systems shall be
capable of being closed from outside the spaces being ventilated. Power
ventilation of accommodation spaces, service spaces, control stations and
machinery spaces shall be capable of being stopped from an easily
accessible position outside the space being served. This position shouldnot be readily cut off in the event of a fire in the spaces served. The
means provided for stopping the power ventilation of the machinery spaces
shall be entirely separate from the means provided for stopping
ventilation of other spaces.
(4) Means shall be provided for closing, from a safe position, the
annular spaces around funnels.
(5) Ventilation systems serving machinery spaces shall be independent
of systems serving other spaces.
(6) Store-rooms containing appreciable quantities of highly flammable
products shall be provided with ventilation arrangements which are
separate from other ventilation systems. Ventilation shall be arranged at
high and low levels and the inlets and outlets of ventilators shall be
positioned in safe areas and fitted with spark arresters.
Regulation 71 Heating Installations
(1) Electric radiators shall be fixed in position and so constructed
as to reduce fire risks to a minimum. No such radiator shall be fitted
with an element so exposed that clothing, curtains or other similar
materials can be scorched or set on fire by heat from the element.
(2) Heating by means of open fires shall not be permitted. Heating
stoves and other similar appliances shall be firmly secured and adequateprotection and insulation against fire shall be provided beneath and
around such appliances and in way of their uptakes. Uptakes of stoves
which burn solid fuel shall be so arranged and designed as to minimize the
possibility of becoming blocked by combustion products and shall have a
ready means for cleaning. Dampers for limiting draughts in uptakes shall,
when in the closed position, still leave an adequate area open. Spaces in
which stoves are installed shall be provided with ventilators of
sufficient area to provide adequate combustion-air for the stove. Such
ventilators shall have no means of closure and their position shall be
such that closing appliances in accordance with Regulation 20 are not
required.
(3) Open flame gas appliances, except cooking stoves and water
heaters, shall not be permitted. Spaces containing any such stoves or
water heaters shall have adequate ventilation to remove fumes and possible
gas leakage to a safe place. All pipes conveying gas from container to
stove or water heater shall be of steel or other approved material.
Automatic safety gas shutoff devices shall be fitted to operate on loss of
pressure in the gas main pipe or flame failure on any appliance.
(4) Where gaseous fuel is used for domestic purposes, the
arrangements, storage, distribution and use of the fuel shall be to the
satisfaction of the Administration and in accordance with Regulation 73.
Regulation 72 Miscellaneous Items*
[* See Guidance Concerning the Use of Certain Plastic Materials
contained in Recommendation 8 of Attachment 3 to the Final Act of the
Conference.]
(1) All exposed surfaces in corridors and stairway enclosures and
surfaces including grounds in concealed or inaccessible spaces in
accommodation and service spaces and control stations shall have low
flame-spread characteristics. ** Exposed surfaces of ceilings in
accommodation and service spaces and control stations shall have low
flame-spread characteristics.
[** See Guidelines on the Evaluation of Fire Hazard Properties of
Materials adopted by the Organization by Resolution A. 166 (ES.IV).]
(2) Paints, varnishes and other finishes used on exposed interior
surfaces shall not be capable of producing excessive quantities of smokeor toxic gases or vapours. The Administration shall be satisfied that they
are not of a nature to offer an undue fire hazard.
(3) Primary deck coverings within accommodation and service spaces and
control stations, shall be of approved material which will not readily
ignite or give rise to toxic or explosive hazards at elevated
temperatures.***
[*** See Improved Provisional Guidelines on Test Procedures for
Primary Deck Coverings adopted by the Organization by Resolution A.214
(VII).]
(4) Where "A" or "B" Class divisions are penetrated for the passage of
electrical cables, pipes, trunks, ducts, etc., or for the fitting of
ventilation terminals, lighting fixtures and similar devices, arrangements
shall be made to ensure that the fire integrity of the divisions is not
impaired.
(5) (a) In accommodation and service spaces and control stations,
pipes penetrating "A" or "B" Class divisions shall be of approved
materials having regard to the temperature such divisions are required to
withstand. Where the Administration permits the conveying of oil and
combustible liquids through accommodation and service spaces, the pipes
conveying oil or combustible liquids shall be of an approved material
having regard to the fire risk.
(b) Materials readily rendered ineffective by heat shall not be
used for overboard scuppers, sanitary discharges, and other outlets which
are close to the waterline and where the failure of the material in the
event of fire would give rise to danger of flooding.
(6) Cellulose-nitrate-based film shall not be used in cinematograph
installations.
(7) All waster receptacles other than those used in fish processing
shall be constructed of non-combustible materials with no openings in the
sides or bottom.
(8) Machinery driving fuel oil transfer pumps, fuel oil unit pumps and
other similar fuel pumps shall be fitted with remote controls situated
outside the space concerned so that they can be stopped in the event of a
fire arising in the space in which they are located.
(9) Drip trays shall be fitted where necessary to prevent oil leaking
into bilges.
(10) Within compartments used for stowage of fish, combustible
insulation shall be protected by close-fitting cladding.
Regulation 73 Storage of Gas Cylinders and Dangerous Materials
(1) Cylinders for compressed, liquefied or dissolved gases shall be
clearly marked by means of prescribed identifying colours, have a clearly
legible identification of the name and chemical formula of their contents
and be properly secured.
(2) Cylinders containing flammable or other dangerous gases and
expended cylinders shall be stored, properly secured, on open decks and
all valves, pressure regulators and pipes leading from such cylinders
shall be protected against damage. Cylinders shall be protected against
excessive variations in temperature, direct rays of the sun, and
accumulation of snow. However, the Administration may permit such
cylinders to be stored in compartments complying with the requirements of
paragraphs (3) to (5).
(3) Spaces containing highly flammable liquids, such as volatile
paints, paraffin, benzole, etc., and where permitted, liquefied gas,
shall have direct access from open decks only. Pressure-adjusting devices
and relief valves shall exhaust within the compartment. Where boundary
bulkheads of such compartments adjoin other enclosed spaces they shall be
gastight.
(4) Except as necessary for service within the space, electrical
wiring and fittings shall not be permitted within compartments used for
the storage of highly flammable liquids or liquefied gases. Where such
electrical fittings are installed, they shall be to the satisfaction of
the Administration for use in a flammable atmosphere. Sources of heat
shall be kept clear of such spaces and "No Smoking" and "No Naked Light"notices shall be displayed in a prominent position.
(5) Separate storage shall be provided for each type of compressed
gas. Compartments used for the storage of such gases shall not be used for
storage of other combustible products nor for tools or objects not part of
the gas distribution system. However, the Administration may relax theserequirements considering the characteristics, volume and intended use ofsuch compressed gases.
Regulation 74 Means of Escape
(1) Stairways and ladders leading to and from all accommodation spaces
and in spaces in which the crew is normally employed, other than machinery
spaces, shall be so arranged as to provide ready means of escape to the
open deck and thence to the survival craft. In particular in relation tothese spaces:
(a) at all levels of accommodation at least two widely separated
means of escape shall be provided which may include the normal means of
access from each restricted space or group of spaces;
(b) (i) below the weather deck the main means of escape shall be a
stairway and the second escape may be a trunk or a stairway; and
(ii) above the weather deck the means of escape shall be
stairways or doors to an open deck or a combination thereof;
(c) exceptionally the Administration may permit only one means of
escape, due regard being paid to the nature and location of spaces and to
the number of persons who normally might be accommodated or employed
there;
(d) a corridor or part of a corridor from which there is only one
route of escape, shall not exceed 7 metres in length;
(e) the width and continuity of the means of escape shall be to
the satisfaction of the Administration; and
(f) two means of escape from a radiotelegraph station which has no
direct access to the open deck shall be provided and these shall be to the
satisfaction of the Administration.
(2) Two means of escape shall be provided from every machinery space
of Category A by one of the following means:
(a) two sets of steel ladders as widely separated as possible
leading to doors in the upper part of the space similarly separated and
from which access is provided to the open deck. In general, one of theseladders shall provide continuous fire shelter from the lower part of thepace to a safe position outside the space. However, the Administration may
not require such shelter if, due to special arrangements or dimensions of
the machinery space, a safe escape route from the lower part of this space
is provided. This shelter shall be of steel, insulated, where necessary,to the satisfaction of the Administration and be provided with a
self-closing steel door at the lower end; or
(b) one steel ladder leading to a door in the upper part of the
space from which access is provided to the open deck and additionally, in
the lower part of the space and in a position well separated from the
ladder referred to, a steel door capable of being operated from each side
and which provides access to a safe escape route from the lower part of
the space to the open deck.
(3) From machinery spaces other than those of Category A, escape
routes shall be provided to the satisfaction of the Administration having
regard to the nature and location of the space and whether persons are
normally employed in that space.
(4) Lifts shall not be considered as forming one of the required means
of escape.
Regulation 75 Automatic Sprinkler and Fire Alarm and Fire
Detec-tion Systems (Method IIF)
(1) In vessels in which method IIF is adopted an automatic sprinkler
and fire alarm system of an approved type and complying with the
requirements of this Regulation shall be installed and so arranged as toprotect accommodation spaces and service spaces except spaces which afford
no substantial fire risks, such as void spaces and sanitary spaces.
(2) (a) The system shall be capable of immediate operation at all
times and no action by the crew shall be necessary to set it in operation.
It shall be of the wet pipe type but small exposed sections may be of the
dry pipe type where in the opinion of the Administration this is a
necessary precaution. Any parts of the system which may be subjected to
freezing temperatures in service shall be suitably protected against
freezing. * It shall be kept charged at the necessary pressure and shallhave provision for a continuous supply of water as required in paragraph6(b).
[* See Guidance for Precautions Against Freezing of Fire Mains
contained in Recommendation 7 of Attachment 3 to the Final Act of the
Conference.]
(b) Each section of sprinklers shall include means for giving a
visible and audible alarm signal automatically at one or more indicatingunits whenever any sprinkler comes into operation. Such units shall
indicate in which section served by the system, fire has occurred and
shall be centralized in the wheelhouse and in addition, visible and
audible alarms from the unit shall be placed in position other than in the
wheelhouse, so as to ensure that the indication of fire is immediately
received by the crew. Such an alarm system shall be so constructed as toindicate if any fault occurs in the system.
(3) (a) Sprinklers shall be grouped into separate sections, each of
which shall contain not more than 200 sprinklers.
(b) Each section of sprinklers shall be capable of being isolated
by one stop valve only. The stop valve in each section shall be readily
accessible and its location shall be clearly and permanently indicated.
Means shall be provided to prevent the operation of the stop valves by any
unauthorized person.
(c) A gauge indicating the pressure in the system shall be
provided at each section stop valve and at a central station.
(d) The sprinklers shall be resistant to corrosion. In
accommodation and service spaces the sprinklers shall come into operation
within the temperature range of 68 degrees celsius and 79 degrees celsius,
except that in locations such as drying rooms, where high ambient
temperatures might be expected, the operating temperature may be increased
by not more than 30 degrees celsius above the maximum deck head
temperature.
(e) A list or plan shall be displayed at each indicating unit
showing the spaces covered and the location of the zone in respect of each
section. Suitable instructions for testing and maintenance shall be
available.
(4) Sprinklers shall be placed in an overhead position and spaced in a
suitable pattern to maintain an average application rate of not less than
5 litres per square metre per minute over the nominal area covered by the
sprinklers. Alternatively, the Administration may permit the use of
sprinklers providing such quantity of water suitably distributed as has
been shown to the satisfaction of the Administration to be not less
effective.
(5) (a) A pressure tank having a volume equal to at least twice that
of the charge of water specified in this sub-paragraph shall be provided.
The tank shall contain a standing charge of fresh water, equivalent to the
amount of water which would be discharged in one minute by the pump
referred to in paragraph (6)(b), and the arrangements shall provide for
maintaining such air pressure in the tank as to ensure that, where the
standing charge of fresh water in the tank has been used, the pressure
will be not less than the working pressure of the sprinkler, plus the
pressure due to a head of water measured from the bottom of the tank to
the highest sprinkler in the system. Suitable means of replenishing the
air under pressure and of replenishing the fresh water charge in the tank
shall be provided. A glass gauge shall be provided to indicate the correct
level of the water in the tank.
(b) Means shall be provided to prevent the passage of sea-water
into the tank.
(6) (a) An independent power pump shall be provided solely for the
purpose of continuing automatically the discharge of water from the
sprinklers. The pump shall be brought into action automatically by the
pressure drop in the system before the standing fresh water charge in the
pressure tank is completely exhausted.
(b) The pump and the piping system shall be capable of maintaining
the necessary pressure at the level of the highest sprinkler to ensure acontinuous output of water sufficient for the simultaneous coverage of the
maximum area separated by fire-resisting bulkheads of "A" and "B" Class
divisions or an area of 280 square metres whichever is the less at the
application rate specified in paragraph (4).
(c) The pump shall have fitted on the delivery side a test valve
with a short open-ended discharge pipe. The effective area through the
valve and pipe shall be adequate to permit the release of the required
pump output while maintaining the pressure in the system specified in
paragraph (5)(a).
(d) The sea inlet to the pump shall wherever possible be in the
space containing the pump and shall be so arranged that when the vessel is
afloat it will not be necessary to shut off the supply of sea-water to the
pump for any purpose other than the inspection or repair of the pump.
(7) The sprinkler pump and tank shall be situated in a position
reasonably remote from any machinery space of Category A and shall not be
situated in any space required to be protected by the sprinkler system.
(8) (a) There shall not be less than two sources of power supply for
the sea-water pump and the automatic fire alarm and fire detection system.
If the pump is electrically driven it shall be connected to the main
source of electrical power, which shall be capable of being supplied by at
least two generators.
(b) The feeders shall be arranged so as to avoid galleys,
machinery spaces and other enclosed spaces of high fire risk except in so
far as it is necessary to reach the appropriate switchboard. One of the
sources of power supply for the fire alarm and fire detection system shall
be an emergency source. Where one of the sources of power for the pump is
an internal combustion-type engine it shall, in addition to complying with
the provisions of paragraph (7), be so situated that a fire in any
protected space will not affect the air supply to that engine.
(9) The sprinkler system shall have a connexion from the vessel''s fire
main by way of a lockable screw-down non-return valve at the connexion
which will prevent a backflow from the sprinkler system to the fire main.
(10) (a) A test valve shall be provided for testing the automatic
alarm for each section of sprinklers by a discharge of water equivalent to
the operation of one sprinkler. The test valve for each section shall besituated near the stop valve for that section.
(b) Means shall be provided for testing the automatic operation of
the pump on reduction of pressure in the system.
(c) Switches shall be provided at one of the indicating positions
referred to in sub-paragraph (2)(b) which will enable the alarm and the
indicators for each section of sprinklers to be tested.
(11) Spare sprinkler heads shall be provided for each section of
sprinklers to the satisfaction of the Administration.
Regulation 76 Automatic Fire Alarm and Fire Detection
Systems(Method IIIF)
(1) In vessels in which Method IIIF is adopted an automatic fire alarm
and fire detection system of an approved type and complying with the
requirements of this Regulation shall be installed and so arranged as todetect the presence of fire in all accommodation spaces and service spaces
except spaces which afford no substantial fire risk, such as void spacesand sanitary spaces.
(2) (a) The system shall be capable of immediate operation at all
times and no action of the crew shall be necessary to set it in operation.
(b) Each section of detectors shall include means for giving a
visible and audible alarm signal automatically at one or more indicatingunits whenever any detector comes into operation. Such units shall
indicate in which section served by the system a fire has occurred and
shall be centralized on the wheelhouse and such other positions as will
ensure that any alarm from the system is immediately received by the crew.
Additionally, arrangements shall be provided to ensure that an alarm issounded on the deck on which the fire has been detected. Such an alarm and
detection system shall be so constructed as to indicate if any fault
occurs in the system.
(3) Detectors shall be grouped into separate sections, each covering
not more than 50 rooms served by such a system and containing not more
than 100 detectors. Detectors shall be zoned to indicate on which deck afire has occurred.
(4) The system shall be operated by an abnormal air temperature, by an
abnormal concentration of smoke or by other factors indicative of
incipient fire in any one of the spaces to be protected. Systems which are
sensitive to air temperature shall not operate at less than 57 degrees
celsius and shall operate at a temperature not greater than 74 degrees
celsius when the temperature increase to those levels is not more than 1degree celsius per minute. At the discretion of the Administration the
permissible temperature of operation may be increased to 30 degrees
celsius above the maximum deckhead temperature in drying rooms and similar
places of a normally high ambient temperature. Systems which are sensitive
to smoke concentration shall operate on the reduction of the intensity of
a transmitted light beam by an amount to be determined by the
Administration. Other equally effective methods of operation may be
accepted at the discretion of the Administration. The detection system
shall not be used for any purpose other than fire detection.
(5) The detectors may be arranged to operate the alarm by the opening
or closing of contacts or by other appropriate methods. They shall be
fitted in an overhead position and shall be suitably protected against
impact and physical damage. They shall be suitable for use in a marine
atmosphere. They shall be placed in an open position clear of beams and
other objects likely to obstruct the flow of hot gases or smoke to the
sensitive element. Detectors operated by the closing of contacts shall be
of the sealed contact type and the circuit shall be continuously monitored
to indicate fault conditions.
(6) At least one detector shall be installed in each space where
detection facilities are required and there shall be not less than one
detector for each 37 square metres of deck area approximately. In large
spaces the detectors shall be arranged in a regular pattern so that no
detector is more than 9 metres from another detector or more than 4.5
metres from a bulkhead.
(7) There shall be not less than two sources of power supply for the
electrical equipment used in the operation of the fire alarm and fire
detection system, one of which shall be an emergency source. The supply
shall be provided by separate feeders reserved solely for that purpose.
Such feeders shall run to a change-over switch situated in the control
station for the fire detection system. The wiring system shall be so
arranged as to avoid galleys, machinery spaces and other enclosed spaceshaving a high fire risk except in so far as it is necessary to provide for
fire detection in such spaces or to reach the appropriate switchboard.
(8) (a) A list or plan shall be displayed adjacent to each indicating
unit showing the spaces covered and the location of the zone in respect of
each system. Suitable instructions for testing and maintenance shall be
available.
(b) Provision shall be made for testing the correct operation of
the detectors and the indicating units by supplying means for applying hot
air or smoke at detector positions.
(9) Spare detector heads shall be provided for each section of
detectors to the satisfaction of the Administration.
Regulation 77 Fixed Fire-Extinguishing Arrangements in Cargo
SpaceofHigh Fire Risk
Cargo spaces of high fire risk shall be protected by a fixed gas
fire-extinguishing system or by a fire-extinguishing system which gives
equivalent protection, to the satisfaction of the Administration.
Regulation 78 Fire Pumps
(1) At least two fire pumps shall be provided.
(2) If a fire in any one compartment could put all the fire pumps out
of action, there shall be an alternative means of providing water for fire
fighting. In vessels of 75 metres in length and over this alternative
means shall be a fixed emergency fire pump independently driven. This
emergency fire pump shall be capable of supplying two jets of water to the
satisfaction of the Administration.
(3) (a) The fire pumps, other than the emergency pump shall be capable
of delivering for fire-fighting purposes a quantity of water at a minimum
pressure of 0.25 newtons per square millimetre, with a total capacity (Q)
of at least:
|-----------------------------------------------|
| ______ 2 |
| Q=(0.15√L(B+D)+2.25) cubic metres per hour |
|-----------------------------------------------|
where L, B and D are in metres.
However, the total required capacity of the fire pumps need not
exceed 180 cubic metres per hour.
(b) Each of the required fire pumps other than any emergency pump
shall have a capacity not less than 40 per cent of the total capacity offire pumps required by sub-paragraph (a) and shall in any event be capable
of delivering at least the jets of water required by Regulation 80 (2)(a).
These fire pumps shall be capable of supplying the fire main systems under
the required conditions. Where more than two pumps are installed the
capacity of such additional pumps shall be to the satisfaction of the
Administration.
(4) (a) Fire pumps shall be independently driven power pumps.
Sanitary, ballast, bilge or general service pumps may be accepted as fire
pumps, provided that they are not normally used for pumping oil and that,
if they are subject to occasional duty for the transfer or pumping of fuel
oil, suitable change-over arrangements are fitted.
(b) Relief valves shall be provided in conjunction with all fire
pumps if the pumps are capable of developing a pressure exceeding the
design pressure of the water service pipes, hydrants and hoses. These
valves shall be so placed and adjusted as to prevent excessive pressure in
any of the fire main systems.
(c) Emergency power-operated fire pumps shall be independently
driven self-contained pumps either with their own diesel engine prime
mover and fuel supply fitted in an accessible position outside the
compartment which contains the main fire pumps, or be driven by a
self-contained generator, which may be the emergency generator referred to
in Regulation 55, of sufficient capacity and which is positioned in a safe
place outside the engine room and preferable above the working deck. Theemergency fire pump shall be capable of operating for a period of at least
3 hours.
(d) Emergency fire pumps, sea-suction valves and other necessary
valves shall be operable from outside compartments containing main fire
pumps in a position not likely to be cut off by a fire in those
compartments.
Regulation 79 Fire Mains
(1) (a) Where more than one hydrant is required to provide the number
of jets specified in Regulation 80 (2)(a) a fire main shall be provided.
(b) Fire mains shall have no connexions other than those required
for fire fighting except for the purpose of washing the deck and anchor
chains or operating the chain locker bilge ejector.
(c) Where fire mains are not self-draining, suitable drain cocks
shall be fitted where frost damage could be expected.*
[* See Guidance for Precautions Against Freezing of Fire Mains
contained in Recommendation 7 of Attachment 3 to the Final Act of the
Conference.]
(2) (a) The diameter of the fire main and water service pipes shall be
sufficient for the effective distribution of the maximum required
discharge from two fire pumps operating simultaneously or of 140 cubic
metres per hour, whichever is the less.
(b) With the two pumps simultaneously delivering through nozzles
specified in Regulation 80 (5) the quantity of water specified in
sub-paragraph (a) of this paragraph, through any adjacent hydrants, theminimum pressure of 0.25 newtons per square millimetre shall be maintained
at all hydrants.
Regulation 80 Fire Hydrants, Fire Hoses and Nozzles
(1) (a) The number of fire hoses provided shall be equal to the number
of fire hydrants arranged according to paragraph (2) and one spare hose.This number does not include any fire hoses required in any engine or
boiler room. The Administration may increase the number of fire hoses
required so as to ensure that hoses in sufficient number are available and
accessible at all times, having regard to the size of the vessel.
(b) Fire hoses shall be of approved material and sufficient in
length to project a jet of water to any of the spaces in which they may be
required to be used. Their maximum length shall be 20 metres. Every firehose shall be provided with a nozzle and the necessary couplings. Fire
hoses shall together with any necessary fittings and tools be kept readyfor use in conspicuous positions near the water service hydrants or
connexions.
(2) (a) The number and position of the hydrants shall be such that at
least two jets of water not emanating from the same hydrant, one of which
shall be from a single length of fire hose, may reach any part of the
vessel normally accessible to the crew while the vessel is being
navigated.
(b) All required hydrants shall be fitted with fire hoses having
dual purpose nozzles as required by paragraph (5). One hydrant shall be
located near the entrance of the space to be protected.
(3) Materials readily rendered ineffective by heat shall not be used
for fire mains and hydrants unless adequately protected. The pipes and
hydrants shall be so placed that the fire hoses may be easily coupled tothem. In vessels where deck cargo may be carried, the positions of the
hydrants shall be such that they are always readily accessible and the
pipes shall be arranged as far as practicable to avoid risk of damage bysuch cargo. Unless one fire hose and nozzle is provided for each hydrant,
there shall be complete interchangeability of fire hose couplings and
nozzles.
(4) A cock or valve shall be fitted to serve each fire hose so that
any fire hose may be removed while the fire pumps are operating.
(5) (a) Standard nozzle sizes shall be 12 millimetres, 16 millimetres
and 19 millimetres or as near thereto as possible. Larger diameter nozzles
may be permitted at the discretion of the Administration.
(b) For accommodation and service spaces, a nozzle size greater
than 12 millimetres need not be used.
(c) For machinery spaces and exterior locations, the nozzle size
shall be such as to obtain the maximum discharge possible from two jets at
the pressure specified in Regulation 79 (2)(b) from the smallest pump,
provided that a nozzle size greater than 19 millimetres need not be used.
Regulation 81 Fire Extinguishers
(1) Fire extinguishers shall be of approved types. The capacity of
required portable fluid extinguishers shall be not more than 14 litres and
not less than 9 litres. Other extinguishers shall not be in excess of the
equivalent portability of the 14 litre fluid extinguisher and shall not be
less than the fire-extinguishing equivalent of a 9 litre fluid
extinguisher. The Administration shall determine the equivalents of fireextinguishers.
(2) Spare charges shall be provided to the satisfaction of the
Administration.
(3) Fire extinguishers containing an extinguishing medium which, in
the opinion of the Administration, either by itself or under expected
conditions of use, gives off toxic gases in such quantities as to endanger
persons shall not be permitted.
(4) Fire extinguishers shall be periodically examined and subjected to
such tests as the Administration may require.
(5) Normally, one of the portable fire extinguishers intended for use
in any space shall be stowed near an entrance to that space.
Regulation 82 Portable Fire Extinguishers in Control Stations
andAccommodation and Service Spaces
(1) At least five approved portable fire extinguishers shall be
provided in control stations and accommodation and service spaces to the
satisfaction of the Administration.
(2) Spare charges shall be provided to the satisfaction of the
Administration.
Regulation 83 Fire-Extinguishing Appliances in Machinery Spaces
(1) (a) Spaces containing oil-fired boilers or fuel oil units shall be
provided with one of the following fixed fire-extinguishing systems, to
the satisfaction of the Administration:
(i) a pressure water-spraying installation;
(ii) a fire-smothering gas installation;
(iii) a fire-extinguishing installation using vapours from low
toxicity vapourizing liquids, e.g. bromochlorodifluorometane (BCF) or
bromotrifluoromethane (BTM); or
(iv) a fire-extinguishing installation using high expansion foam.
Where the engine and boiler rooms are not entirely separate,
or if fuel oil can drain from the boiler room into the engine room, the
combined engine and boiler rooms shall be considered as one compartment.
(b) Every boiler room shall be provided with at least one set of
portable air-foam equipment to the satisfaction of the Administration.
(c) At least two approved portable extinguishers discharging foam
or equivalent shall be provided in each firing space in each boiler roomand each space in which a part of the fuel oil installation is situated.At least one approved foam-type extinguisher of at least 136 litres
capacity or equivalent shall be provided in each boiler room. These
extinguishers shall be provided with hoses on reels suitable for reaching
any part of the boiler room. The Administration may relax the requirements
of this sub-paragraph, having regard to the size and nature of the space
to be protected.
(d) In each firing space there shall be a receptacle containing
sand, sawdust impregnated with soda or other approved dry material, in
such quantity as may be required by the Administration. Alternatively anapproved portable extinguisher may be provided.
(2) Spaces containing internal combustion machinery used either for
main propulsion or for other purposes, when such machinery has a total
power output of not less than 375 kilowatts, shall be provided with thefollowing arrangements:
(a) one of the fire-extinguishing systems required by paragraph
(1)(a);
(b) at least one set of portable air-foam equipment to the
satisfaction of the Administration; and
(c) in each such space, approved foam-type fire extinguishers each
of at least 45 litres capacity, or equivalent, sufficient in number to
enable foam or its equivalent to be directed on to any part of the fuel
and lubricating oil pressure systems, gearing and other fire hazards. Inaddition, there shall be provided a sufficient number of portable foam
extinguishers or equivalent which shall be so located that an extinguisher
is not more than 10 metres walking distance from any point in the space;provided that there shall be at least two such extinguishers in each such
space. For smaller spaces the Administration may relax these requirements.
(3) Spaces containing steam turbines or enclosed steam engines used
either for main propulsion, or for other purposes, when such machinery
has a total power output of not less than 375 kilowatts shall be provided
with the following arrangements:
(a) foam fire extinguishers each of at least 45 litres capacity,
or equivalent, sufficient in number to enable foam or its equivalent to be
directed on to any part of the pressure lubrication system, on to any part
of the casings enclosing pressure lubricated parts of the turbines,
engines or associated gearing, and any other fire hazards. Provided thatsuch extinguishers shall not be required if protection at least equivalent
to that of this sub-paragraph is provided in such spaces by a fixed
fire-extinguishing system fitted in compliance with paragraph (1)(a); and
(b) a sufficient number of portable foam extinguishers, or
equivalent, which shall be so located that an extinguisher is not more
than 10 metres walking distance from any point in the space; provided that
that there shall be at least two such extinguishers in each such space,
and such extinguishers shall not be required in addition to any providedin compliance with paragraph (2)(c).
(4) Where, in the opinion of the Administration, a fire hazard exists
in any machinery space for which no specific provisions for
fire-extinguishing appliances are prescribed in paragraphs (1), (2) and
(3) there shall be provided in, or adjacent to, that space a number of
approved portable fire extinguishers or other means of fire extinction to
the satisfaction of the Administration.
(5) Where fixed fire-extinguishing systems not required by this Part
are installed, such systems shall be to the satisfaction of the
Administration.
(6) For any machinery space of Category A to which access is provided
at a low level from an adjacent shaft tunnel, there shall be provided inaddition to any watertight door and on the side remote from that machinery
space a light steel fire-screen door which shall be capable of being
operated from each side of the door.
Regulation 84 International Shore Connexion
(1) At least one international shore connexion, complying with
paragraph (2) shall be provided.
(2) Standard dimensions of flanges for the international shore
connexion shall be in accordance with the following table:
|-----------------------------------------------------------------------
| Description | Dimension |
|-------------------------|--------------------------------------------|
| Outside diameter | 178 millimetres |
|-------------------------|--------------------------------------------|
| Inner diameter | 64 millimetres |
|-------------------------|--------------------------------------------|
| Bolt circle diameter | 132 millimetres |
|-------------------------|--------------------------------------------|
| | 4 holes 19 millimetres in diameter |
| Slots in flange | equidistantly placed on a bolt circle of |
| | the above diameter, slotted to the flange|
| | periphery |
|-------------------------|--------------------------------------------|
| Flange thickness | 14.5 millimetres minimum |
|-------------------------|---------------------------------------------
| | 4 each of 16 millimetres in diameter and 50|
| Bolts and nuts | |
| | millimetres in length |
|-----------------------------------------------------------------------
(3) This connexion shall be constructed of material suitable for 1.0
newton per square millimetre service pressure.
(4) The flange shall have a flat face on one side and the other shall
have a coupling permanently attached thereto that will fit the vessel''s
hydrant and hose. The connexion shall be kept aboard the vessel togetherwith a gasket of any material suitable for 1.0 newton per square
millimetre service pressure, together with four 16 millimetre bolts 50
millimetres in length and eight washers.
(5) Facilities shall be available enabling such a connexion to be used
on either side of the vessel.
Regulation 85 Fireman''s Outfits
(1) At least two fireman''s outfits shall be carried to the
satisfaction of the Administration.
(2) The fireman''s outfits shall be stored so as to be easily
accessible and ready for use and shall be stored in widely separated
positions.
Regulation 86 Fire Control Plan
There shall be a permanently exhibited fire control plan to the
satisfaction of the Administration.
Regulation 87 Ready Availability of Fire-Extinguishing Appliances
Fire-extinguishing appliances shall be kept in good order and
available for immediate use at all times.
Regulation 88 Acceptance of Substitutes
Where in this Part any special type of appliance, apparatus,
extinguishing medium or arrangement is specified, any other type of
appliance, etc., may be allowed, provided the Administration is satisfied
that it is not less effective.
PART B FIRE SAFETY MEASURES IN VESSELS OF LESS THAN 55 METRES INLENGTH
Regulation 89 Structural Fire Protection
(1) The hull, superstructure, structural bulkheads, decks and
deckhouses shall be constructed of non-combustible materials. The
Administration may permit combustible construction provided the
requirements of this Regulation and the additional fire-extinguishing
requirements of Regulation 101(3) are complied with.
(2) (a) In vessels, the hull of which is constructed of
non-combustible materials, the decks and bulkheads separating machinery
spaces of Category A from accommodation spaces, service spaces or control
stations shall be constructed to "A-60" Class standard where the machinery
space of Category A is not provided with a fixed fire-extinguishing system
and to "A-30" Class standard where such a system is fitted. Decks and
bulkheads separating other machinery spaces from accommodation, service
spaces and control stations shall be constructed to "A-0" Class standard.
Decks and bulkheads separating control stations from accommodation and
service spaces shall be constructed to "A" Class standard, insulated to
the satisfaction of the Administration, except that an Administration may
permit the fitting of "B-15" Class divisions for separating such spaces as
skipper''s cabin from the wheelhouse.
(b) In vessels, the hull of which is constructed of combustible
materials, the decks and bulkheads separating machinery spaces from
accommodation spaces, service spaces or control stations shall be
constructed to "F" Class or "B-15" Class standard. In addition, machinery
space boundaries shall as far as practicable prevent the passage of smoke.
Decks and bulkheads separating control stations from accommodation and
service spaces shall be constructed to "F" Class standard.
(3) (a) In vessels, the hull of which is constructed of
