02 FSS-Code Fire Safety Systems Code - Res. MSC.98(73)

Fire Safety Systems Code - FSS-CODE

Document	MSC/Res.98(73)	Entry Into Force: 01-07-2002
Amended by	MSC/Res.206(81)	01-07-10
Amended by	MSC/Res.217(83)	01-07-08 and 01-07-10
Amended by	MSC/Res.292(87)	01-01-12
Amended by	MSC/Res.311(88)	01-07-12
Amended by	MSC/Res.327(90)	01-01-14

 

THE MARITIME SAFETY COMMITTEE,

RECALLING Article 28(b) of the Convention on the International Maritime Organization concerning the functions of the Committee,

NOTING the revision of chapter II-2 of the International Convention for the Safety of Life at Sea (SOLAS), 1974 (hereinafter referred to as ”the Convention”),

RECOGNIZING the need to continue the mandatory application of the fire safety systems required by the revised chapter II-2 of the Convention,

NOTING resolution MSC.99(73) by which it adopted, inter alia, the revised chapter II-2 of the Convention to make the provisions of the International Code for Fire Safety Systems (FSS Code) mandatory under the Convention,

HAVING CONSIDERED, at its seventy-third session, the text of the proposed FSS Code,

1. ADOPTS the International Code for Fire Safety Systems (FSS Code), the text of which is set out in the Annex to the present resolution;
   
   
2. INVITES Contracting Governments to the Convention to note that the FSS Code will take effect on 1 July 2002 upon the entry into force of the revised chapter II-2 of the Convention;
   
   
3. REQUESTS the Secretary-General to transmit certified copies of this resolution and the text of the FSS Code contained in the Annex to all Contracting Governments to the Convention;
   
   
4. FURTHER REQUESTS the Secretary-General to transmit copies of this resolution and the Annex to all Members of the Organization which are not Contracting Governments to the Convention.

Ingangsdatum: 01-07-2002

Fire Safety Systems Code - FSS-CODE

Document	MSC/Res.98(73)	Entry Into Force: 01-07-2002
Amended by	MSC/Res.206(81)	01-07-10
Amended by	MSC/Res.217(83)	01-07-08 and 01-07-10
Amended by	MSC/Res.292(87)	01-01-12
Amended by	MSC/Res.311(88)	01-07-12
Amended by	MSC/Res.327(90)	01-01-14

 

THE MARITIME SAFETY COMMITTEE,

RECALLING Article 28(b) of the Convention on the International Maritime Organization concerning the functions of the Committee,

NOTING the revision of chapter II-2 of the International Convention for the Safety of Life at Sea (SOLAS), 1974 (hereinafter referred to as ”the Convention”),

RECOGNIZING the need to continue the mandatory application of the fire safety systems required by the revised chapter II-2 of the Convention,

NOTING resolution MSC.99(73) by which it adopted, inter alia, the revised chapter II-2 of the Convention to make the provisions of the International Code for Fire Safety Systems (FSS Code) mandatory under the Convention,

HAVING CONSIDERED, at its seventy-third session, the text of the proposed FSS Code,

1. ADOPTS the International Code for Fire Safety Systems (FSS Code), the text of which is set out in the Annex to the present resolution;
   
   
2. INVITES Contracting Governments to the Convention to note that the FSS Code will take effect on 1 July 2002 upon the entry into force of the revised chapter II-2 of the Convention;
   
   
3. REQUESTS the Secretary-General to transmit certified copies of this resolution and the text of the FSS Code contained in the Annex to all Contracting Governments to the Convention;
   
   
4. FURTHER REQUESTS the Secretary-General to transmit copies of this resolution and the Annex to all Members of the Organization which are not Contracting Governments to the Convention.

Preamble

Ingangsdatum: 01-07-2002

1 The purpose of this Code is to provide international standards of specific engineering specifications for fire safety systems required by chapter II-2 of the International Convention for the Safety of Life at Sea, 1974, as amended.

2 On or after 1 July 2002, this Code will be mandatory for fire safety systems required by the International Convention for the Safety of Life at Sea, 1974, as amended. Any future amendment to the Code must be adopted and brought into force in accordance with the procedure laid down in Article VIII of the Convention.

Chapter 01 General

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1 Application

1 Application

1.1 This code is applicable to fire safety systems as referred to in chapter II-2 of the 1974 SOLAS Convention, as amended.

1.2 Unless expressly provided otherwise, this Code is applicable for the fire safety systems of ships the keels of which are laid or which are at a similar stage of construction on or after 1 July 2002.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

1 Application

1.1 This code is applicable to fire safety systems as referred to in chapter II-2 of the 1974 SOLAS Convention, as amended.

1.2 Unless expressly provided otherwise, this Code is applicable for the fire safety systems of ships the keels of which are laid or which are at a similar stage of construction on or after 1 July 2002.

2 Definitions

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2.1 Administration means the Government of the State whose flag the ship is entitled to fly.

2.2 Convention means the 1974 SOLAS Convention, as amended.

2.3 Fire Safety Systems Code means the International Code for Fire Safety Systems as defined in chapter II-2 of the 1974 SOLAS Convention, as amended.

2.4 For the purpose of this Code, definitions provided in SOLAS chapter II also apply.

3 Use of equivalents and modern technology

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In order to allow modern technology and development of fire safety systems, the Administrations may approve fire safety systems which are not specified in this Code if the requirements of Part F of chapter II-2 of the SOLAS Convention are fulfilled.

4 Use of toxic extinguishing media

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The use of a fire-extinguishing medium which, in the opinion of the Administration, either by itself or under expected conditions of use gives off toxic gases, liquids and other substances in such quantities as to endanger persons shall not be permitted.

Chapter 02 International shore connections

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1 Application

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This chapter details the specifications for international shore connections as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 Standard dimensions
Standard dimensions of flanges for the international shore connection shall be in accordance with the following table:



2.2 Materials and accessories
International shore connections shall be of steel or other equivalent material and shall be designed for 1.0 N/ mm ² services. The flange shall have a flat face on one side and, on the other side, it shall be permanently attached to a coupling that will fit the ship's hydrant and hose. The connection shall be kept aboard the ship together with a gasket of any material suitable for 1.0 N/ mm ² services, together with four bolts of 16 mm diameter and 50 mm in length, four 16 mm nuts, and eight washers.

Chapter 03 Personel protection

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for personnel protection as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

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2.1 Fire-fighter's outfit

Ingangsdatum: 01-07-2002

2.1 Fire-fighter's outfit

A fire-fighter's outfit shall consist of a set of personal equipment and a breathing apparatus.

2.1.1 Personal equipment
Personal equipment shall consist of the following:

1. protective clothing of material to protect the skin from the heat radiating from the fire and from burns and scalding by steam. The outer surface shall be water-resistant;
   
   
2. boots of rubber or other electrically non-conducting material;
   
   
3. rigid helmet providing effective protection against impact;
   
   
   
4. electric safety lamp (hand lantern) of an approved type with a minimum burning period of 3 hours. Electric safety lamps on tankers and those intended to be used in hazardous areas shall be of an explosion-proof type; and
   
   
5. axe with a handle provided with high-voltage insulation.
   
   

2.1.2 Breathing apparatus
Breathing apparatus shall be a self-contained compressed air-operated breathing apparatus for which the volume of air contained in the cylinders shall be at least 1,200 litres, or other self-contained breathing apparatus which shall be capable of functioning for at least 30 min. All air cylinders for breathing apparatus shall be interchangeable.

2.1.3 Lifeline
For each breathing apparatus a fireproof lifeline of at least 30 m in length shall be provided. The lifeline shall successfully pass an approval test by statical load of 3.5 kN for 5 min without failure. The lifeline shall be capable of being attached by means of a snap-hook to the harness of the apparatus or to a separate belt in order to prevent the breathing apparatus becoming detached when the lifeline is operated.

2.2 Emergency escape breathing devices (EEBD)

Ingangsdatum: 01-07-2002

2.2.1 General
2.2.1.1 An EEBD is a supplied-air or oxygen device only used for escape from a compartment that has a hazardous atmosphere and shall be of an approved type.
2.2.1.2 EEBDs shall not be used for fighting fires, entering oxygen deficient voids or tanks, or worn by fire-fighters. In these events, a self-contained breathing apparatus, which is specifically suited for such applications, shall be used.

2.2.2 Definitions
2.2.2.1 Face piece means a face covering that is designed to form a complete seal around the eyes, nose and mouth which is secured in position by a suitable means.
2.2.2.2 Hood means a head covering which completely covers the head, neck, and may cover portions of the shoulders.
2.2.2.3 Hazardous atmosphere means any atmosphere that is immediately dangerous to life or health.

2.2.3 Particulars
2.2.3.1 The EEBD shall have a service duration at least 10 minutes.
2.2.3.2 The EEBD shall include a hood or full face piece, as appropriate, to protect the eyes, nose and mouth during escape. Hoods and face pieces shall be constructed of flame resistant materials and include a clear window for viewing.
2.2.3.3 An inactivated EEBD shall be capable of being carried hands-free.
2.2.3.4 An EEBD, when stored, shall be suitably protected from the environment.
2.2.3.5 Brief instructions or diagrams clearly illustrating their use shall be clearly printed on the EEBD. The donning procedures shall be quick and easy to allow for situations where there is little time to seek safety from a hazardous atmosphere.

Chapter 04 Fire Extinguishers

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

1 Application

This chapter details the specifications for fire extinguishers as required by chapter II-2 of the SOLAS Convention.

2 Type approval

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2 Type approval

All fire extinguishers shall be of approved types and designs based on the guidelines developed by the Organization.¹

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¹ Refer to the 'resolution A.602(15)' resolution A.602(15) adopted by the Organization by resolution A.602(15).
Resolution A.602(15) is Revoked by Resolution A.951(23) with EIF date 05-12-2003

3 Engineering specifications

3 Engineering specifications

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3 Engineering specifications

3.1 Fire extinguisher

Ingangsdatum: 01-07-2002

2.1 Fire extinguisher

2.1.1 Quantity of medium
2.1.1.1 Each powder or carbon dioxide extinguisher shall have a capacity of at least 5 kg, and each foam extinguisher shall have a capacity of at least 9 l. The mass of all portable fire extinguishers shall not exceed 23 kg, and they shall have a fire-extinguishing capability at least equivalent to that of a 9 l fluid extinguisher.

2.1.1.2 The Administration shall determine the equivalents of fire extinguishers.

2.1.2 Recharging
Only refills approved for the fire extinguisher in question shall be used for recharging.

3.2 Portable foam applicators

3.2 Portable foam applicators

A portable foam applicator unit shall consist of a foam nozzle of an inductor type capable of being connected to the fire main by a fire hose, together with a portable tank containing at least 20 litres of foam-making liquid and one spare tank of foam making liquid. The nozzle shall be capable of producing effective foam suitable for extinguishing an oil fire, at the rate of at least 1.5 metres³/min.

Ingangsdatum: 01-07-2008

3.2 Portable foam applicators

3.2.1 A portable foam applicator unit shall consist of a foam nozzle/branch pipe, either of a self-inducing type or in combination with a separate inductor, capable of being connected to the fire main by a fire hose, together with a portable tank containing at least 20 l of foam concentrate and at least one spare tank of foam concentrate of the same capacity.

3.2.2 System performance3.2.2.1 The nozzle/branch pipe and inductor shall be capable of producing effective foam suitable for extinguishing an oil fire, at a foam solution flow rate of at least 200 l/min at the nominal pressure in the fire main.

3.2.2.2 The foam concentrate shall be approved by the Administration based on guidelines developed by the Organization1.

3.2.2.3 The values of the foam expansion and drainage time of the foam produced by the portable foam applicator unit shall not differ more than ± 10% of that determined in 3.2.2.2.

3.2.2.4 The portable foam applicator unit shall be designed to withstand clogging, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally encountered on ships.

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¹Refer to the Guidelines for the performance and testing criteria and surveys of low-expansion foam concentrates for fixed fire-extinguishing systems (MSC/Circ.582/Corr.1).

Chapter 05 Fixed gas fire-extinguishing systems

Fixed gas fire-extinguishing systems

Ingangsdatum: 01-07-2002

Fixed gas fire-extinguishing systems

1 Application

1 Application

This chapter details the specifications for fixed gas fire-extinguishing systems as required by chapter II-2 of the SOLAS Convention.

Ingangsdatum: 01-07-2010

1 Application

This chapter details the specifications for fixed gas fire-extinguishing systems as required by chapter II-2 of the Convention.

2 Engineering specifications

2 Engineering specifications

Ingangsdatum: 01-07-2002

2 Engineering specifications

2.1 General

2.1 General

2.1.1 Fire-extinguishing medium

2.1.1.1 Where the quantity of the extinguishing medium is required to protect more than one space, the quantity of medium available need not be more than the largest quantity required for any one space so protected.

2.1.1.2 The volume of starting air receivers, converted to free air volume, shall be added to the gross volume of the machinery space when calculating the necessary quantity of extinguishing medium. Alternatively, a discharge pipe from the safety valves may be fitted and led directly to the open air.

2.1.1.3 Means shall be provided for the crew to safely check the quantity of medium in the containers.

2.1.1.4 Containers for the storage of fire-extinguishing medium and associated pressure components shall be designed to pressure codes of practice to the satisfaction of the Administration having regard to their locations and maximum ambient temperatures expected in service.

2.1.2 Installation requirements

2.1.2.1 The piping for the distribution of fire-extinguishing medium shall be arranged and discharge nozzles so positioned that a uniform distribution of medium is obtained.

2.1.2.2 Except as otherwise permitted by the Administration, pressure containers required for the storage of fire-extinguishing medium, other than steam, shall be located outside protected spaces in accordance with SOLAS regulation II-2/10.4.3.

2.1.2.3 Spare parts for the system shall be stored on board and be to the satisfaction of the Administration.

2.1.3 System control requirements

2.1.3.1 The necessary pipes for conveying fire-extinguishing medium into the protected spaces shall be provided with control valves so marked as to indicate clearly the spaces to which the pipes are led. Suitable provision shall be made to prevent inadvertent release of the medium into the space. Where a cargo space fitted with a gas fire-extinguishing system is used as a passenger space, the gas connection shall be blanked during such use. The pipes may pass through accommodations providing that they are of substantial thickness and that their tightness is verified with a pressure test, after their installation, at a pressure head not less than 5 N/square meters. In addition, pipes passing through accommodation areas shall be joined only by welding and shall not be fitted with drains or other openings within such spaces. The pipes shall not pass through refrigerated spaces.

2.1.3.2 Means shall be provided for automatically giving audible warning of the release of fire-extinguishing medium into any ro-ro spaces and other spaces in which personnel normally work or to which they have access. The pre-discharge alarm shall be automatically activated, e.g. by opening of the release cabinet door. The alarm shall operate for the length of time needed to evacuate the space, but in no case less than 20 seconds before the medium is released. Conventional cargo spaces and small spaces (such as compressor rooms, paint lockers, etc.) with only a local release need not be provided with such an alarm.

2.1.3.3 The means of control of any fixed gas fire-extinguishing system shall be readily accessible, simple to operate and shall be grouped together in as few locations as possible at positions not likely to be cut off by a fire in a protected space. At each location there shall be clear instructions relating to the operation of the system having regard to the safety of personnel.

2.1.3.4 Automatic release of fire-extinguishing medium shall not be permitted, except as permitted by the Administration.

Ingangsdatum: 01-07-2010

2.1 General

2.1.1 Fire-extinguishing medium
2.1.1.1 Where the quantity of the fire-extinguishing medium is required to protect more than one space, the quantity of medium available need not be more than the largest quantity required for any one space so protected. The system shall be fitted with normally closed control valves arranged to direct the agent into the appropriate space.

2.1.1.2 The volume of starting air receivers, converted to free air volume, shall be added to the gross volume of the machinery space when calculating the necessary quantity of the fire-extinguishing medium. Alternatively, a discharge pipe from the safety valves may be fitted and led directly to the open air.

2.1.1.3 Means shall be provided for the crew to safely check the quantity of the fire-extinguishing medium in the containers.

2.1.1.4 Containers for the storage of fire-extinguishing medium, piping and associated pressure components shall be designed to pressure codes of practice to the satisfaction of the Administration having regard to their locations and maximum ambient temperatures expected in service.¹

 

2.1.2 Installation requirements
2.1.2.1 The piping for the distribution of fire-extinguishing medium shall be arranged and discharge nozzles so positioned that a uniform distribution of the medium is obtained. System flow calculations shall be performed using a calculation technique acceptable to the Administration.

2.1.2.2 Except as otherwise permitted by the Administration, pressure containers required for the storage of fire-extinguishing medium, other than steam, shall be located outside the protected spaces in accordance with regulation II-2/10.4.3 of the Convention.

2.1.2.3 Spare parts for the system shall be stored on board and be to the satisfaction of the Administration.

2.1.2.4 In piping sections where valve arrangements introduce sections of closed piping, such sections shall be fitted with a pressure relief valve and the outlet of the valve shall be led to open deck.

2.1.2.5 All discharge piping, fittings and nozzles in the protected spaces shall be constructed of materials having a melting temperature which exceeds 925°C. The piping and associated equipment shall be adequately supported.

2.1.2.6 A fitting shall be installed in the discharge piping to permit the air testing as required by paragraph 2.2.3.1.

 

2.1.3 System control requirements
2.1.3.1 The necessary pipes for conveying fire-extinguishing medium into the protected spaces shall be provided with control valves so marked as to indicate clearly the spaces to which the pipes are led. Suitable provisions shall be made to prevent inadvertent release of the medium into the space. Where a cargo space fitted with a gas fire-extinguishing system is used as a passenger space, the gas connection shall be blanked during such use. The pipes may pass through accommodations providing that they are of substantial thickness and that their tightness is verified with a pressure test, after their installation, at a pressure head not less than 5 N/mm2. In addition, pipes passing through accommodation areas shall be joined only by welding and shall not be fitted with drains or other openings within such spaces. The pipes shall not pass through refrigerated spaces.

2.1.3.2 Means shall be provided for automatically giving audible and visual warning of the release of fire-extinguishing medium into any ro-ro spaces and other spaces in which personnel normally work or to which they have access. The audible alarms shall be located so as to be audible throughout the protected space with all machinery operating, and the alarms should be distinguished from other audible alarms by adjustment of sound pressure or sound patterns. The pre-discharge alarm shall be automatically activated (e.g., by opening of the release cabinet door). The alarm shall operate for the length of time needed to evacuate the space, but in no case less than 20 s before the medium is released. Conventional cargo spaces and small spaces (such as compressor rooms, paint lockers, etc.) with only a local release need not be provided with such an alarm.

2.1.3.3 The means of control of any fixed gas fire-extinguishing system shall be readily accessible, simple to operate and shall be grouped together in as few locations as possible at positions not likely to be cut off by a fire in a protected space. At each location there shall be clear instructions relating to the operation of the system having regard to the safety of personnel.

2.1.3.4 Automatic release of fire-extinguishing medium shall not be permitted, except as permitted by the Administration.

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¹ Publication ISO – 9809/1: Refillable seamless steel gas cylinders (design, construction and testing);
ISO – 3500: Seamless steel CO2 cylinders. For fixed fire-fighting installations on ships, specifying the principal external dimensions, accessories, filling ratio and marking for seamless steel CO2 cylinders used in fixed fire-fighting installations on ships, in order to facilitate their interchange ability;
ISO – 5923: Fire protection – Fire-extinguishing media – Carbon dioxide;
ISO – 13769: Gas cylinders – Stamp marking;
ISO – 6406: Periodic inspection and testing of seamless steel gas cylinders;
ISO – 9329, part 1: Seamless steel tubes for pressure purposes - Technical delivery conditions – Part 1: Unalloyed steels with specified room temperature properties;
ISO – 9329, part 2: Seamless steel tubes for pressure purposes - Technical delivery conditions – Part 2: Unalloyed and alloyed steels with specified elevated temperature properties;
ISO – 9330, part 1: Welded steel tubes for pressure purposes - Technical delivery conditions – Part 1: Unalloyed steel tubes with specified room temperature properties;
ISO – 9330, part 2: Welded steel tubes for pressure purposes - Technical delivery conditions – Part 2: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified elevated temperature properties.

2.2 Carbon dioxide systems

2.2 Carbon dioxide systems

2.2.1 Quantity of fire extinguishing medium
2.2.1.1 For cargo spaces the quantity of carbon dioxide available shall, unless otherwise provided, be sufficient to give a minimum volume of free gas equal to 30% of the gross volume of the largest cargo space to be protected in the ship.

2.2.1.2 For machinery spaces the quantity of carbon dioxide carried shall be sufficient to give a minimum volume of free gas equal to the larger of the following volumes, either:

1. forty percent of the gross volume of the largest machinery space so protected, the volume to exclude that part of the casing above the level at which the horizontal area of the casing is 40% or less of the horizontal area of the space concerned taken midway between the tank top and the lowest part of the casing; or
   
   
2. thirty-five percent of the gross volume of the largest machinery space protected, including the casing;
   
   

2.2.1.3 The percentages specified in paragraph 2.2.1.2 above may be reduced to 35% and 30%, respectively, for cargo ships of less than 2,000 tons gross tonnage where two or more machinery spaces, which are not entirely separate, are considered as forming one space.

2.2.1.4 For the purpose of this paragraph the volume of free carbon dioxide shall be calculated at 0.56 cubic meters/kg.

2.2.1.5 For machinery spaces the fixed piping system shall be such that 85% of the gas can be discharged into the space within 2 min. (SC128 )

2.2.2 Controls (SC132)
Carbon dioxide systems shall comply with the following requirements:

1. two separate controls shall be provided for releasing carbon dioxide into a protected space and to ensure the activation of the alarm. One control shall be used for opening the valve of the piping which conveys the gas into the protected space and a second control shall be used to discharge the gas from its storage containers; and
   
   
2. the two controls shall be located inside a release box clearly identified for the particular space. If the box containing the controls is to be locked, a key to the box shall be in a break-glass-type enclosure conspicuously located adjacent to the box.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2010

2.2 Carbon dioxide systems

2.2.1 Quantity of fire extinguishing medium
2.2.1.1 For cargo spaces the quantity of carbon dioxide available shall, unless otherwise provided, be sufficient to give a minimum volume of free gas equal to 30% of the gross volume of the largest cargo space to be protected in the ship.

2.2.1.2 For machinery spaces the quantity of carbon dioxide carried shall be sufficient to give a minimum volume of free gas equal to the larger of the following volumes, either:

1. forty percent of the gross volume of the largest machinery space so protected, the volume to exclude that part of the casing above the level at which the horizontal area of the casing is 40% or less of the horizontal area of the space concerned taken midway between the tank top and the lowest part of the casing; or
   
   
2. thirty-five percent of the gross volume of the largest machinery space protected, including the casing;
   
   

2.2.1.3 The percentages specified in paragraph 2.2.1.2 above may be reduced to 35% and 30%, respectively, for cargo ships of less than 2,000 tons gross tonnage where two or more machinery spaces, which are not entirely separate, are considered as forming one space.

2.2.1.4 For the purpose of this paragraph the volume of free carbon dioxide shall be calculated at 0.56 cubic meters/kg.

2.2.1.5 For machinery spaces the fixed piping system shall be such that 85% of the gas can be discharged into the space within 2 min. (SC128 )

2.2.2 Controls (SC132)
Carbon dioxide systems shall comply with the following requirements:

1. two separate controls shall be provided for releasing carbon dioxide into a protected space and to ensure the activation of the alarm. One control shall be used for opening the valve of the piping which conveys the gas into the protected space and a second control shall be used to discharge the gas from its storage containers; and
   
   
2. the two controls shall be located inside a release box clearly identified for the particular space. If the box containing the controls is to be locked, a key to the box shall be in a break-glass-type enclosure conspicuously located adjacent to the box.

2.2 Carbon Dioxide Systems

Ingangsdatum: 01-07-2010

2.2 Carbon dioxide systems

2.2.1 Quantity of fire-extinguishing medium
2.2.1.1 For cargo spaces, the quantity of carbon dioxide available shall, unless otherwise provided, be sufficient to give a minimum volume of free gas equal to 30% of the gross volume of the largest cargo space to be protected in the ship.

2.2.1.2 For machinery spaces, the quantity of carbon dioxide carried shall be sufficient to give a minimum volume of free gas equal to the larger of the following volumes, either:

1. 40% of the gross volume of the largest machinery space so protected, the volume to exclude that part of the casing above the level at which the horizontal area of the casing is 40% or less of the horizontal area of the space concerned taken midway between the tank top and the lowest part of the casing; or
   
   
2. 35% of the gross volume of the largest machinery space protected, including the casing.
   
   

2.2.1.3 The percentages specified in paragraph 2.2.1.2 above may be reduced to 35% and 30%, respectively, for cargo ships of less than 2,000 gross tonnage where two or more machinery spaces, which are not entirely separate, are considered as forming one space.

2.2.1.4 For the purpose of this paragraph the volume of free carbon dioxide shall be calculated at 0.56 m3/kg.

2.2.1.5 For machinery spaces, the fixed piping system shall be such that 85% of the gas can be discharged into the space within 2 min.

2.2.2 Controls
Carbon dioxide systems shall comply with the following requirements:

1. two separate controls shall be provided for releasing carbon dioxide into a protected space and to ensure the activation of the alarm. One control shall be used for opening the valve of the piping which conveys the gas into the protected space and a second control shall be used to discharge the gas from its storage containers. Positive means shall be provided so they can only be operated in that order; and
   
   
2. the two controls shall be located inside a release box clearly identified for the particular space. If the box containing the controls is to be locked, a key to the box shall be in a break-glass-type enclosure conspicuously located adjacent to the box.
   
   

2.2.3 Testing of the installation
When the system has been installed, pressure-tested and inspected, the following shall be carried out:

1. a test of the free air flow in all pipes and nozzles; and
   
   
2. a functional test of the alarm equipment.
   
   

2.2.4 Low-pressure CO2 system
Where a low pressure CO2 system is fitted to comply with this regulation, the following applies.

2.2.4.1 The system control devices and the refrigerating plants shall be located within the same room where the pressure vessels are stored.

2.2.4.2 The rated amount of liquid carbon dioxide shall be stored in vessel(s) under the working pressure in the range of 1.8 N/mm2 to 2.2 N/mm2. The normal liquid charge in the container shall be limited to provide sufficient vapour space to allow for expansion of the liquid under the maximum storage temperatures than can be obtained corresponding to the setting of the pressure relief valves but shall not exceed 95% of the volumetric capacity of the container.

2.2.4.3 Provision shall be made for:

1. pressure gauge;
   
   
2. high pressure alarm: not more than setting of the relief valve;
   
   
3. low pressure alarm: not less than 1.8 N/mm2;
   
   
4. branch pipes with stop valves for filling the vessel;
   
   
5. discharge pipes;
   
   
6. liquid CO2 level indicator, fitted on the vessel(s); and
   
   
7. two safety valves.
   
   

2.2.4.4 The two safety relief valves shall be arranged so that either valve can be shut off while the other is connected to the vessel. The setting of the relief valves shall not be less than 1.1 times working pressure. The capacity of each valve shall be such that the vapours generated under fire condition can be discharged with a pressure rise not more than 20% above the setting pressure. The discharge from the safety valves shall be led to the open.

2.2.4.5 The vessel(s) and outgoing pipes permanently filled with carbon dioxide shall have thermal insulation preventing the operation of the safety valve in 24 h after de-energizing the plant, at ambient temperature of 45°C and an initial pressure equal to the starting pressure of the refrigeration unit.

2.2.4.6 The vessel(s) shall be serviced by two automated completely independent refrigerating units solely intended for this purpose, each comprising a compressor and the relevant prime mover, evaporator and condenser.

2.2.4.7 The refrigerating capacity and the automatic control of each unit shall be so as to maintain the required temperature under conditions of continuous operation during 24 h at sea temperatures up to 32°C and ambient air temperatures up to 45°C.

2.2.4.8 Each electric refrigerating unit shall be supplied from the main switchboard busbars by a separate feeder.

2.2.4.9 Cooling water supply to the refrigerating plant (where required) shall be provided from at least two circulating pumps one of which being used as a stand-by. The stand-by pump may be a pump used for other services so long as its use for cooling would not interfere with any other essential service of the ship. Cooling water shall be taken from not less than two sea connections, preferably one port and one starboard.

2.2.4.10 Safety relief devices shall be provided in each section of pipe that may be isolated by block valves and in which there could be a build-up of pressure in excess of the design pressure of any of the components.

2.2.4.11 Audible and visual alarms shall be given in a central control station or, in accordance with regulation II-1/51, where a central control station is not provided, when:

1. the pressure in the vessel(s) reaches the low and high values according to paragraph 2.2.4.2;
   
   
2. any one of the refrigerating units fails to operate; or
   
   
3. the lowest permissible level of the liquid in the vessels is reached.
   
   

2.2.4.12 If the system serves more than one space, means for control of discharge quantities of CO2 shall be provided, e.g. automatic timer or accurate level indicators located at the control position(s).

2.2.4.13 If a device is provided which automatically regulates the discharge of the rated quantity of carbon dioxide into the protected spaces, it shall be also possible to regulate the discharge manually.

2.3 Requirements of steam systems

2.3 Requirements of steam systems

The boiler or boilers available for supplying steam shall have an evaporation of at least 1 kg of steam per hour for each 0.75 m³ of the gross volume of the largest space so protected. In addition to complying with the foregoing requirements the systems in all respects shall be as determined by, and to the satisfaction of, the Administration.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2010

2.3 Requirements of steam systems

The boiler or boilers available for supplying steam shall have an evaporation of at least 1 kg of steam per hour for each 0.75 m³ of the gross volume of the largest space so protected. In addition to complying with the foregoing requirements the systems in all respects shall be as determined by, and to the satisfaction of, the Administration.

2.3 Requirements Of Steam Systems

Ingangsdatum: 01-07-2010

2.3 Requirements of steam systems

The boiler or boilers available for supplying steam shall have an evaporation of at least 1 kg of steam per hour for each 0.75 m³ of the gross volume of the largest space so protected. In addition to complying with the foregoing requirements, the systems in all respects shall be as determined by, and to the satisfaction of, the Administration.

2.4 Systems using gaseous products of fuel combustion

2.4 Systems using gaseous products of fuel combustion

2.4.1 General Where gas other than carbon dioxide or steam, as permitted by paragraph 2.3, is produced on the ship and is used as a fire-extinguishing medium, the system shall comply with the requirements in paragraph 2.4.2.

 

2.4.2 Requirements of the systems
2.4.2.1 Gaseous products Gas shall be a gaseous product of fuel combustion in which the oxygen content, the carbon monoxide content, the corrosive elements and any solid combustible elements in a gaseous product shall have been reduced to a permissible minimum.

2.4.2.2 Capacity of fire -extinguishing systems
2.4.2.2.1Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of machinery spaces, it shall afford protection equivalent to that provided by a fixed system using carbon dioxide as the medium.

2.4.2.2.2Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of cargo spaces, a sufficient quantity of such gas shall be available to supply hourly a volume of free gas at least equal to 25 % of the gross volume of the largest space protected in this way for a period of 72 hours.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2010

2.4 Systems using gaseous products of fuel combustion

2.4.1 General Where gas other than carbon dioxide or steam, as permitted by paragraph 2.3, is produced on the ship and is used as a fire-extinguishing medium, the system shall comply with the requirements in paragraph 2.4.2.

 

2.4.2 Requirements of the systems
2.4.2.1 Gaseous products Gas shall be a gaseous product of fuel combustion in which the oxygen content, the carbon monoxide content, the corrosive elements and any solid combustible elements in a gaseous product shall have been reduced to a permissible minimum.

2.4.2.2 Capacity of fire -extinguishing systems
2.4.2.2.1Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of machinery spaces, it shall afford protection equivalent to that provided by a fixed system using carbon dioxide as the medium.

2.4.2.2.2Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of cargo spaces, a sufficient quantity of such gas shall be available to supply hourly a volume of free gas at least equal to 25 % of the gross volume of the largest space protected in this way for a period of 72 hours.

2.4 Systems Using Gaseous Products Of Fuel Combustion

Ingangsdatum: 01-07-2010

2.4 Systems using gaseous products of fuel combustion

2.4.1 General
Where gas other than carbon dioxide or steam, as permitted by paragraph 2.3, is produced on the ship and is used as a fire-extinguishing medium, the system shall comply with the requirements in paragraph 2.4.2.

 

2.4.2 Requirements of the systems
2.4.2.1 Gaseous products
Gas shall be a gaseous product of fuel combustion in which the oxygen content, the carbon monoxide content, the corrosive elements and any solid combustible elements in a gaseous product shall have been reduced to a permissible minimum.

2.4.2.2 Capacity of fire-extinguishing systems
2.4.2.2.1 Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of machinery spaces, it shall afford protection equivalent to that provided by a fixed system using carbon dioxide as the medium.

2.4.2.2.2 Where such gas is used as the fire-extinguishing medium in a fixed fire-extinguishing system for the protection of cargo spaces, a sufficient quantity of such gas shall be available to supply hourly a volume of free gas at least equal to 25% of the gross volume of the largest space protected in this way for a period of 72 h.

2.5 Equivalent fixed gas fire -extinguishing systems for machinery spaces and cargo pump rooms

2.5 Equivalent fixed gas fire -extinguishing systems for machinery spaces and cargo pump rooms

Fixed gas fire-extinguishing systems equivalent to those specified in paragraphs 2.2 through 2.4 shall be approved by the Administration based on the guidelines developed by the Organization.¹ 

---

¹ Refer to the revised guidelines for the approval of equivalent fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces and cargo pump rooms (MSC/Circ.848).

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2010

2.5 Equivalent fixed gas fire -extinguishing systems for machinery spaces and cargo pump rooms

Fixed gas fire-extinguishing systems equivalent to those specified in paragraphs 2.2 through 2.4 shall be approved by the Administration based on the guidelines developed by the Organization.¹ 

---

¹ Refer to the revised guidelines for the approval of equivalent fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces and cargo pump rooms (MSC/Circ.848).

2.5 Equivalent Fixed Gas Fire-Extinguishing Systems For Machinery Spaces And Cargo Pump-Rooms

Ingangsdatum: 01-07-2010

2.5 Equivalent fixed gas fire-extinguishing systems for machinery spaces and cargo pump-rooms

Fixed gas fire-extinguishing systems equivalent to those specified in paragraphs 2.2 to 2.4 shall be approved by the Administration based on the guidelines developed by the Organization.¹

---

¹Refer to the Revised guidelines for the approval of equivalent fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces and cargo pump rooms (MSC/Circ.848) and the Guidelines for the approval of fixed aerosol fire-extinguishing systems equivalent to fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces (MSC/Circ.1007).
MSC/Circ.1007 is Superseded by MSC/Circ.1270 with EIF date 09-05-2008.

Chapter 06 Fixed foam fire-extinguishing systems

Ingangsdatum: 01-07-2002

1 Application

1 - Application

This chapter details the specifications for fixed foam fire-extinguishing systems as required by chapter II-2 of the SOLAS Convention.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2013

1 - Application

This chapter details the specifications for fixed foam fire-extinguishing systems as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

2 - Engineering specifications

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2013

2 - Engineering specifications

2 Definitions

[Niet geldig (geldigheid vanaf 2014-01-01)]

2.1 General

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2013

2.1 - General

Fixed foam fire-extinguishing systems shall be capable of generating foam suitable for extinguishing oil fires.

2.2 Fixed high-expansion foam fire-extinguishing systems

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2013

2.2 - Fixed high-expansion foam fire-extinguishing systems

2.2.1 Quantity and performance of foam concentrates

2.2.1.1 The foam concentrates of high-expansion foam fire-extinguishing systems shall be approved by the Administration based on the guideline developed by the Organization.¹*

2.2.1.2 Any required fixed high-expansion foam system in machinery spaces shall be capable of rapidly discharging through fixed discharge outlets a quantity of foam sufficient to fill the greatest space to be protected at a rate of at least 1 m in depth per minute. The quantity of foam-forming liquid available shall be sufficient to produce a volume of foam equal to five times the volume of the largest space to be protected. The expansion ratio of the foam shall not exceed 1,000 to 1.

2.2.1.3 The Administration may permit alternative arrangements and discharge rates provided that it is satisfied that equivalent protection is achieved.

 

2.2.2 Installation requirements

2.2.2.1 Supply ducts for delivering foam, air intakes to the foam generator and the number of foam-producing units shall in the opinion of the Administration be such as will provide effective foam production and distribution.

2.2.2.2 The arrangement of the foam generator delivery ducting shall be such that a fire in the protected space will not affect the foam generating equipment. If the foam generators are located adjacent to the protected space, foam delivery ducts shall be installed to allow at least 450 mm of separation between the generators and the protected space. The foam delivery ducts shall be constructed of steel having a thickness of not less than 5 mm. In addition, stainless steel dampers (single or multi-bladed) with a thickness of not less than 3mm shall be installed at the openings in the boundary bulkheads or decks between the foam generators and the protected space. The dampers shall be automatically operated (electrically, pneumatically or hydraulically) by means of remote control of the foam generator related to them.

2.2.2.3 The foam generator, its sources of power supply, foam-forming liquid and means of controlling the system shall be readily accessible and simple to operate and shall be grouped in as few locations as possible at positions not likely to be cut off by a fire in the protected space.

 

---

¹ Refer to the Guidelines for performance and testing criteria and surveys of high expansion foam concentrates for fire-extinguishing systems (MSC/ Circ.670).

2.3 Fixed low-expansion foam fire-extinguishing systems

2.3 Fixed low-expansion foam fire-extinguishing systems

2.3.1 Quantity and foam concentrates
2.3.1.1 The foam concentrates of low-expansion foam fire-extinguishing systems shall be approved by the Administration based on the guidelines developed by the Organization.¹

2.3.1.2 The system shall be capable of discharging through fixed discharge outlets in not more than 5 min a quantity of foam sufficient to cover to a depth of 150 mm the largest single area over which oil fuel is liable to spread. The expansion ratio of the foam shall not exceed 12 to 1.

 

2.3.2 Installation requirements
2.3.2.1 Means shall be provided for the effective distribution of the foam through a permanent system of piping and control valves or cocks to suitable discharge outlets, and for the foam to be effectively directed by fixed sprayers on other main fire hazards in the protected space. The means for effective distribution of the foam shall be proven acceptable to the Administration through calculation or by testing.

2.3.2.2 The means of control of any such systems shall be readily accessible and simple to operate and shall be grouped together in as few locations as possible at positions not likely to be cut off by a fire in the protected space.

---

¹ Refer to the Guidelines for performance and testing criteria and surveys of low expansion foam concentrates for fire-extinguishing systems (MSC/Circ.582 and Corr.1).

Ingangsdatum: 01-07-2008

Geldig tot en met: 31-12-2013

2.3 - Fixed low-expansion foam fire-extinguishing systems

2.3.1 Quantity and foam concentrates
2.3.1.1 The foam concentrates of low-expansion foam fire-extinguishing systems shall be approved by the Administration based on the guidelines developed by the Organization.¹

2.3.1.2  The system shall be capable of discharging through fixed discharge outlets in no more than 5 min, a quantity of foam sufficient to produce an effective foam blanket over the largest single area over which oil fuel is liable to spread.

 

2.3.2 Installation requirements
2.3.2.1 Means shall be provided for the effective distribution of the foam through a permanent system of piping and control valves or cocks to suitable discharge outlets, and for the foam to be effectively directed by fixed sprayers on other main fire hazards in the protected space. The means for effective distribution of the foam shall be proven acceptable to the Administration through calculation or by testing.

2.3.2.2 The means of control of any such systems shall be readily accessible and simple to operate and shall be grouped together in as few locations as possible at positions not likely to be cut off by a fire in the protected space.

---

¹ Refer to the Guidelines for performance and testing criteria and surveys of low expansion foam concentrates for fire-extinguishing systems (MSC/Circ.582 and Corr.1).

3 Fixed high-expansion foam fire-extinguishing systems

3 - Fixed high-expansion foam fire-extinguishing systems

3.1 Principal performance

[Niet geldig (geldigheid vanaf 2014-01-01)]

3.2 Inside air foam systems

[Niet geldig (geldigheid vanaf 2014-01-01)]

3.3 Outside air foam systems

[Niet geldig (geldigheid vanaf 2014-01-01)]

3.4 Installation testing requirements

[Niet geldig (geldigheid vanaf 2014-01-01)]

3.5 Systems using outside air

[Niet geldig (geldigheid vanaf 2014-01-01)]

4 Fixed low-expansion foam fire-extinguishing systems

4 - Fixed low-expansion foam fire-extinguishing systems

4.1 Quantity and foam concentrates

[Niet geldig (geldigheid vanaf 2014-01-01)]

4.2 Installation requirements

[Niet geldig (geldigheid vanaf 2014-01-01)]

Chapter 07 Fixed pressure water-spraying and water-mist fire-extinguishing systems

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for fixed pressure water-spraying and water-mist fire-extinguishing systems as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 Fixed pressure water-spraying fire-extinguishing systems

2.1 Fixed pressure water-spraying fire-extinguishing systems

2.1.1 Nozzles and pumps
2.1.1.1 Any required fixed pressure water-spraying fire-extinguishing system in machinery spaces shall be provided with spraying nozzles of an approved type.

2.1.1.2 The number and arrangement of the nozzles shall be to the satisfaction of the Administration and shall be such as to ensure an effective average distribution of water of at least 5 l/ m 2/min in the spaces to be protected. Where increased application rates are considered necessary, these shall be to the satisfaction of the Administration.

2.1.1.3 Precautions shall be taken to prevent the nozzles from becoming clogged by impurities in the water or corrosion of piping, nozzles, valves and pump.

2.1.1.4 The pump shall be capable of simultaneously supplying at the necessary pressure all sections of the system in any one compartment to be protected.

2.1.1.5 The pump may be driven by an independent internal combustion machinery but, if it is dependent upon power being supplied from the emergency generator fitted in compliance with the provisions of regulation II-1/42 or regulation II-1/43, as appropriate, that generator shall be so arranged as to start automatically in case of main power failure so that power for the pump required by paragraph 2.1.1.4 is immediately available. The independent internal combustion machinery for driving the pump shall be so situated that a fire in the protected space or spaces will not affect the air supply to the machinery.

 

2.1.2 Installation requirements
2.1.2.1 Nozzles shall be fitted above bilges, tank tops and other areas over which oil fuel is liable to spread and also above other specific fire hazards in the machinery spaces.

2.1.2.2 The system may be divided into sections, the distribution valves of which shall be operated from easily accessible positions outside the spaces to be protected so as not to be readily cut off by a fire in the protected space.

2.1.2.3 The pump and its controls shall be installed outside the space or spaces to be protected. It shall not be possible for a fire in the space or spaces protected by the water-spraying system to put the system out of action.

 

2.1.3 System control requirements
The system shall be kept charged at the necessary pressure and the pump supplying the water for the system shall be put automatically into action by a pressure drop in the system.

Ingangsdatum: 01-07-2008

2.1 Fixed pressure water-spraying fire-extinguishing systems
Fixed-pressure water-spraying fire-extinguishing systems for machinery spaces and cargo pump-rooms shall be approved by the Administration based on the guidelines developed by the Organization¹.

---

¹Refer to the Revised Guidelines for the approval of equivalent water-based fire-extinguishing systems for machinery spaces and cargo pump-rooms (MSC/Circ.1165).

2.2 Equivalent water-mist fire-extinguishing systems

2.2 Equivalent water-mist fire-extinguishing systems

Water-mist fire-extinguishing systems for machinery spaces and cargo pump rooms shall be approved by the Administration based on the guidelines developed by the Organization¹.

---

¹ Refer to the Alternative arrangements for halon fire-extinguishing systems in machinery spaces and pump rooms (MSC/Circ.668) and the Revised test method for equivalent water-based fire-extinguishing systems for machinery spaces of category A and cargo pump rooms (MSC/Circ.728).

Ingangsdatum: 01-07-2008

2.2 Equivalent water-mist fire-extinguishing systems

Water-mist fire-extinguishing systems for machinery spaces and cargo pump-rooms shall be approved by the Administration based on the guidelines developed by the Organization¹.

---

¹Refer to the Revised Guidelines for the approval of equivalent water-based fire-extinguishing systems for machinery spaces and cargo pump-rooms (MSC/Circ.1165).

2.3 Fixed pressure water-spraying fire-extinguishing systems for cabin balconies

Ingangsdatum: 01-07-2008

2.3 Fixed pressure water-spraying fire-extinguishing systems for cabin balconies

Fixed pressure water-spraying fire-extinguishing systems for cabin balconies shall be approved by the Administration based on the guidelines developed by the Organization.¹

---

¹ Refer to the guidelines to be developed by the Organization.

Chapter 08 Automatic sprinkler, fire detection and fire alarm systems

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for automatic sprinkler, fire detection and fire alarm systems as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General

2.1 - General

2.1.1 Type of sprinkler systems
The automatic sprinkler systems 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. Saunas shall be fitted with a dry pipe system, with sprinkler heads having an operating temperature up to 140ºC.

2.1.2 Sprinkler systems equivalent to those specified in paragraphs 2.2 to 2.4
Automatic sprinkler systems equivalent to those specified in paragraphs 2.2 to 2.4 shall be approved by the Administration based on the guidelines developed by the Organization.¹

---

¹ Refer to the Revised Guidelines for approval of sprinkler systems equivalent to that referred to in SOLAS regulation II-2/12 as adopted by the Organization by resolution A.800(19).

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2013

2.1 - General

2.1.1 Type of sprinkler systems
The automatic sprinkler systems 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. Saunas shall be fitted with a dry pipe system, with sprinkler heads having an operating temperature up to 140ºC.

2.1.2 Sprinkler systems equivalent to those specified in paragraphs 2.2 to 2.4
Automatic sprinkler systems equivalent to those specified in paragraphs 2.2 to 2.4 shall be approved by the Administration based on the guidelines developed by the Organization.¹

---

¹ Refer to the Revised Guidelines for approval of sprinkler systems equivalent to that referred to in SOLAS regulation II-2/12 as adopted by the Organization by resolution A.800(19).

2.2 Sources of power supply

Ingangsdatum: 01-07-2002

2.2.1 Passenger ships
There shall be not less than two sources of power supply for the sea water pump and automatic alarm and detection system. Where the sources of power for the pump are electrical, these shall be a main generator and an emergency source of power. One supply for the pump shall be taken from the main switchboard, and one from the emergency switchboard by separate feeders reserved solely for that purpose. The feeders shall be so arranged 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 switchboards, and shall be run to an automatic changeover switch situated near the sprinkler pump. This switch shall permit the supply of power from the main switchboard so long as a supply is available therefrom, and be so designed that upon failure of that supply it will automatically change over to the supply from the emergency switchboard. The switches on the main switchboard and the emergency switchboard shall be clearly labelled and normally kept closed. No other switch shall be permitted in the feeders concerned. One of the sources of power supply for the alarm and detection system shall be an emergency source. Where one of the sources of power for the pump is an internal combustion engine it shall, in addition to complying with the provisions of paragraph 2.4.3, be so situated that a fire in any protected space will not affect the air supply to the machinery.

2.2.2 Cargo ships
There shall not be less than two sources of power supply for the sea water pump and automatic alarm and 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. The feeders shall be so arranged 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 switchboards. One of the sources of power supply for the alarm and detection system shall be an emergency source. Where one of the sources of power for the pump is an internal combustion engine it shall, in addition to complying with the provisions of paragraph 2.4.3, be so situated that a fire in any protected space will not affect the air supply to the machinery.

2.3 Component requirements

Ingangsdatum: 01-07-2002

2.3.1 Sprinklers
2.3.1.1 The sprinklers shall be resistant to corrosion by marine atmosphere. In accommodation and service spaces the sprinklers shall come into operation within the temperature range from 68ºC to 79ºC , 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 30ºC above the maximum deckhead temperature.

2.3.1.2 A quantity of spare sprinkler heads shall be provided for all types and ratings installed on the ship as follows:

2.4 Installation requirements

Ingangsdatum: 01-07-2002

2.4.1 General
Any parts of the system which may be subjected to freezing temperatures in service shall be suitably protected against freezing.

2.4.2 Piping arrangements
2.4.2.1 Sprinklers shall be grouped into separate sections, each of which shall contain not more than 200 sprinklers. In passenger ships any section of sprinklers shall not serve more than two decks and shall not be situated in more than one main vertical zone. However, the Administration may permit such a section of sprinklers to serve more than two decks or be situated in more than one main vertical zone, if it is satisfied that the protection of the ship against fire will not thereby be reduced.
2.4.2.2 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 in a location outside of the associated section or in cabinets within stairway enclosures. The valve's location shall be clearly and permanently indicated. Means shall be provided to prevent the operation of the stop valves by any unauthorized person.
2.4.2.3 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 be situated near the stop valve for that section.
2.4.2.4 The sprinkler system shall have a connection from the ship's fire main by way of a lockable screw-down non-return valve at the connection which will prevent a backflow from the sprinkler system to the fire main.
2.4.2.5 A gauge indicating the pressure in the system shall be provided at each section stop valve and at a central station.
2.4.2.6 The sea inlet to the pump shall wherever possible be in the space containing the pump and shall be so arranged that when the ship 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.

2.4.3 Location of systems
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.

2.5 System control requirements, ( SC34 )

Ingangsdatum: 01-07-2002

2.5.1 Ready availability
2.5.1.1 Any required automatic sprinkler, fire detection and fire alarm system shall be capable of immediate operation at all times and no action by the crew shall be necessary to set it in operation.
2.5.1.2 The automatic sprinkler system shall be kept charged at the necessary pressure and shall have provision for a continuous supply of water as required in this chapter.

2.5.2 Alarm and indication
2.5.2.1 Each section of sprinklers shall include means for giving a visual and audible alarm signal automatically at one or more indicating units whenever any sprinkler comes into operation. Such alarm systems shall be such as to indicate if any fault occurs in the system. Such units shall indicate in which section served by the system a fire has occurred and shall be centralised on the navigating bridge or in the continuously manned central control station and, in addition, visible and audible alarms from the unit shall also be placed in a position other than on the aforementioned spaces to ensure that the indication of fire is immediately received by the crew.
2.5.2.2 Switches shall be provided at one of the indicating positions referred to in paragraph 2.5.2.1 which will enable the alarm and the indicators for each section of sprinklers to be tested.
2.5.2.3 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 l/ m ²/min over the nominal area covered by the sprinklers. However, the Administration may permit the use of sprinklers providing such an alternative amount of water suitably distributed as has been shown to the satisfaction of the Administration to be not less effective.
2.5.2.4 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.

2.5.3 Testing
Means shall be provided for testing the automatic operation of the pump on reduction of pressure in the system.

Chapter 09 Fixed fire detection and fire alarm systems

Fixed fire detection and fire alarm systems

Ingangsdatum: 01-07-2002

Fixed fire detection and fire alarm systems

1 Applications

This chapter details the specifications for fixed fire detection and fire alarm systems as required by chapter II-2 of the SOLAS Convention.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2012

This chapter details the specifications for fixed fire detection and fire alarm systems as required by chapter II-2 of the SOLAS Convention.

1 Application

[Niet geldig (geldigheid vanaf 2012-07-01)]

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General requirements

2.1 General requirements

2.1.1 Any required fixed fire detection and fire alarm system with manually operated call points shall be capable of immediate operation at all times.

2.1.2 The fixed fire detection and fire alarm system shall not be used for any other purpose, except that closing of fire doors and similar functions may be permitted at the control panel.

2.1.3 The system and equipment shall be suitably designed to withstand supply voltage variation and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally encountered in ships.

2.1.4 Zone address identification capability Fixed fire detection and fire alarm systems with a zone address identification capability shall be so arranged that:

1. means are provided to ensure that any fault (e.g. power break, short circuit, earth) occurring in the loop will not render the whole loop ineffective;
   
   
2. all arrangements are made to enable the initial configuration of the system to be restored in the event of failure (electrical, electronic, informatics);
   
   
3. the first initiated fire alarm will not prevent any other detector from initiating further fire alarms; and
   
   
4. no loop will pass through a space twice. When this is not practical (e.g. for large public spaces), the part of the loop which by necessity passes through the space for a second time shall be installed at the maximum possible distance from the other parts of the loop.

Ingangsdatum: 01-07-2010

Geldig tot en met: 30-06-2012

2.1 General requirements

2.1.1 Any required fixed fire detection and fire alarm system with manually operated call points shall be capable of immediate operation at all times.

2.1.2 The fixed fire detection and fire alarm system shall not be used for any other purpose, except that closing of fire doors and similar functions may be permitted at the control panel.

2.1.3 The system and equipment shall be suitably designed to withstand supply voltage variation and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally encountered in ships.

2.1.4 Zone address identification capability Fixed fire detection and fire alarm systems with a zone address identification capability shall be so arranged that:

1. means are provided to ensure that any fault (e.g. power break, short circuit, earth) occurring in the loop will not render the whole loop ineffective;
   
   
2. all arrangements are made to enable the initial configuration of the system to be restored in the event of failure (electrical, electronic, informatics);
   
   
3. the first initiated fire alarm will not prevent any other detector from initiating further fire alarms; and
   
   
4. no loop will pass through a space twice. When this is not practical (e.g. for large public spaces), the part of the loop which by necessity passes through the space for a second time shall be installed at the maximum possible distance from the other parts of the loop.
   
   

2.1.5 In passenger ships, the fixed fire detection and fire alarm system shall be capable of remotely and individually identifying each detector and manually operated call point.

2.2 Sources of power supply

There shall be not less than two sources of power supply for the electrical equipment used in the operation of the fixed fire detection and fire alarm 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 an automatic change-over switch situated in or adjacent to the control panel for the fire detection system.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2012

There shall be not less than two sources of power supply for the electrical equipment used in the operation of the fixed fire detection and fire alarm 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 an automatic change-over switch situated in or adjacent to the control panel for the fire detection system.

2.3 Component requirements

2.3.1 Detectors
2.3.1.1 Detectors shall be operated by heat, smoke or other products of combustion, flame, or any combination of these factors. Detectors operated by other factors indicative of incipient fires may be considered by the Administration provided that they are no less sensitive than such detectors. Flame detectors shall only be used in addition to smoke or heat detectors.
2.3.1.2 Smoke detectors required in all stairways, corridors and escape routes within accommodation spaces shall be certified to operate before the smoke density exceeds 12.5% obscuration per metre, but not until the smoke density exceeds 2% obscuration per metre. Smoke detectors to be installed in other spaces shall operate within sensitivity limits to the satisfaction of the Administration having regard to the avoidance of detector insensitivity or oversensitivity.
2.3.1.3 Heat detectors shall be certified to operate before the temperature exceeds 78 ºC but not until the temperature exceeds 54 ºC, when the temperature is raised to those limits at a rate less than 1 ºC per minute. At higher rates of temperature rise, the heat detector shall operate within temperature limits to the satisfaction of the Administration having regard to the avoidance of detector insensitivity or oversensitivity.
2.3.1.4 The operation temperature of heat detectors in drying rooms and similar spaces of a normal high ambient temperature may be up to 130ºC, and up to 140 ºC in saunas.
2.3.1.5 All detectors shall be of a type such that they can be tested for correct operation and restored to normal surveillance without the renewal of any component.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2012

2.3.1 Detectors
2.3.1.1 Detectors shall be operated by heat, smoke or other products of combustion, flame, or any combination of these factors. Detectors operated by other factors indicative of incipient fires may be considered by the Administration provided that they are no less sensitive than such detectors. Flame detectors shall only be used in addition to smoke or heat detectors.
2.3.1.2 Smoke detectors required in all stairways, corridors and escape routes within accommodation spaces shall be certified to operate before the smoke density exceeds 12.5% obscuration per metre, but not until the smoke density exceeds 2% obscuration per metre. Smoke detectors to be installed in other spaces shall operate within sensitivity limits to the satisfaction of the Administration having regard to the avoidance of detector insensitivity or oversensitivity.
2.3.1.3 Heat detectors shall be certified to operate before the temperature exceeds 78 ºC but not until the temperature exceeds 54 ºC, when the temperature is raised to those limits at a rate less than 1 ºC per minute. At higher rates of temperature rise, the heat detector shall operate within temperature limits to the satisfaction of the Administration having regard to the avoidance of detector insensitivity or oversensitivity.
2.3.1.4 The operation temperature of heat detectors in drying rooms and similar spaces of a normal high ambient temperature may be up to 130ºC, and up to 140 ºC in saunas.
2.3.1.5 All detectors shall be of a type such that they can be tested for correct operation and restored to normal surveillance without the renewal of any component.

2.4 Installation requirements

2.4 Installation requirements

2.4.1 Sections
2.4.1.1 Detectors and manually operated call points shall be grouped into sections.

2.4.1.2 A section of fire detectors which covers a control station, a service space or an accommodation space shall not include a machinery space of category A. For fixed fire detection and fire alarm systems with remotely and individually identifiable fire detectors, a loop covering sections of fire detectors in accommodation, service spaces and control station shall not include sections of fire detectors in machinery spaces of category A.

2.4.1.3 Where the fixed fire detection and fire alarm system does not include means of remotely identifying each detector individually, no section covering more than one deck within accommodation spaces, service spaces and control stations shall normally be permitted except a section which covers an enclosed stairway. In order to avoid delay in identifying the source of fire, the number of enclosed spaces included in each section shall be limited as determined by the Administration. In no case shall more than 50 enclosed spaces be permitted in any section. If the system is fitted with remotely and individually identifiable fire detectors, the sections may cover several decks and serve any number of enclosed spaces.

2.4.1.4 In passenger ships, if there is no fixed fire detection and fire alarm system capable of remotely and individually identifying each detector, a section of detectors shall not serve spaces on both sides of the ship nor on more than one deck and neither shall it be situated in more than one main vertical zone except that the same section of detectors may serve spaces on more than one deck if those spaces are located in the fore or aft end of the ship or if they protect common spaces on different decks (e.g. fan rooms, galleys, public spaces, etc.). In ships of less than 20m in breadth, the same section of detectors may serve spaces on both sides of the ship. In passenger ships fitted with individually identifiable fire detectors, a section may serve spaces on both sides of the ship and on several decks but shall not be situated in more than one main vertical zone.

2.4.2 Positioning of detectors
2.4.2.1 Detectors shall be located for optimum performance. Positions near beams and ventilation ducts or other positions where patterns of air flow could adversely affect performance and positions where impact or physical damage is likely shall be avoided. Detectors which are located on the overhead shall be a minimum distance of 0.5 m away from bulkheads, except in corridors, lockers and stairways.

2.4.2.2 The maximum spacing of detectors shall be in accordance with the table below:

Type of detector	Maximum floor area per detector	Maximum distance apart between centres	Maximum distance away from bulkheads
Heat	37 m2	9 m	4.5 m
Smoke	74 m2	11 m	5.5 m

Table 9.1 - Spacing of detectors

Ingangsdatum: 01-07-2010

Geldig tot en met: 30-06-2012

2.4 Installation requirements

2.4.1 Sections
2.4.1.1 Detectors and manually operated call points shall be grouped into sections.

2.4.1.2 A section of fire detectors which covers a control station, a service space or an accommodation space shall not include a machinery space of category A. For fixed fire detection and fire alarm systems with remotely and individually identifiable fire detectors, a loop covering sections of fire detectors in accommodation, service spaces and control station shall not include sections of fire detectors in machinery spaces of category A.

2.4.1.3 Where the fixed fire detection and fire alarm system does not include means of remotely identifying each detector individually, no section covering more than one deck within accommodation spaces, service spaces and control stations shall normally be permitted except a section which covers an enclosed stairway. In order to avoid delay in identifying the source of fire, the number of enclosed spaces included in each section shall be limited as determined by the Administration. In no case shall more than 50 enclosed spaces be permitted in any section. If the system is fitted with remotely and individually identifiable fire detectors, the sections may cover several decks and serve any number of enclosed spaces.

2.4.1.4A section of fire detectors and manually operated call points shall not be situated in more than one main vertical zone.

2.4.2 Positioning of detectors
2.4.2.1 Detectors shall be located for optimum performance. Positions near beams and ventilation ducts or other positions where patterns of air flow could adversely affect performance and positions where impact or physical damage is likely shall be avoided. Detectors which are located on the overhead shall be a minimum distance of 0.5 m away from bulkheads, except in corridors, lockers and stairways.

2.4.2.2 The maximum spacing of detectors shall be in accordance with the table below:

Type of detector	Maximum floor area per detector	Maximum distance apart between centres	Maximum distance away from bulkheads
Heat	37 m2	9 m	4.5 m
Smoke	74 m2	11 m	5.5 m

Table 9.1 - Spacing of detectors

2.5 System control requirements

2.5.1 Visual and audible fire signals *
2.5.1.1 The activation of any detector or manually operated call point shall initiate a visual and audible fire signal at the control panel and indicating units. If the signals have not received attention within 2 minutes an audible alarm shall be automatically sounded throughout the crew accommodation and service spaces, control stations and machinery spaces of category A. This alarm sounder system need not be an integral part of the detection system.

* Refer to the Code on Alarms and Indicators as adopted by the Organization by resolution A.830(19).

2.5.1.2 The control panel shall be located on the navigating bridge or in the continuously manned central control station.
2.5.1.3 Indicating units shall, as a minimum, denote the section in which a detector has been activated or manually operated call point has been operated. At least one unit shall be so located that it is easily accessible to responsible members of the crew at all times. One indicating unit shall be located on the navigating bridge if the control panel is located in the main fire control station.
2.5.1.4 Clear information shall be displayed on or adjacent to each indicating unit about the spaces covered and the location of the sections.
2.5.1.5 Power supplies and electric circuits necessary for the operation of the system shall be monitored for loss of power or fault conditions as appropriate. Occurrence of a fault condition shall initiate a visual and audible fault signal at the control panel which shall be distinct from a fire signal.

2.5.2 Testing Suitable instructions and component spares for testing and maintenance shall be provided.

Ingangsdatum: 01-07-2002

Geldig tot en met: 30-06-2012

2.5.1 Visual and audible fire signals *
2.5.1.1 The activation of any detector or manually operated call point shall initiate a visual and audible fire signal at the control panel and indicating units. If the signals have not received attention within 2 minutes an audible alarm shall be automatically sounded throughout the crew accommodation and service spaces, control stations and machinery spaces of category A. This alarm sounder system need not be an integral part of the detection system.

* Refer to the Code on Alarms and Indicators as adopted by the Organization by resolution A.830(19).

2.5.1.2 The control panel shall be located on the navigating bridge or in the continuously manned central control station.
2.5.1.3 Indicating units shall, as a minimum, denote the section in which a detector has been activated or manually operated call point has been operated. At least one unit shall be so located that it is easily accessible to responsible members of the crew at all times. One indicating unit shall be located on the navigating bridge if the control panel is located in the main fire control station.
2.5.1.4 Clear information shall be displayed on or adjacent to each indicating unit about the spaces covered and the location of the sections.
2.5.1.5 Power supplies and electric circuits necessary for the operation of the system shall be monitored for loss of power or fault conditions as appropriate. Occurrence of a fault condition shall initiate a visual and audible fault signal at the control panel which shall be distinct from a fire signal.

2.5.2 Testing Suitable instructions and component spares for testing and maintenance shall be provided.

2.6 Fire alarm systems for cabin balconies

Ingangsdatum: 01-07-2008

Geldig tot en met: 01-07-2012

2.6 Fixed fire detection and fire alarm systems for cabin balconies

Fixed fire detection and fire alarm systems for cabin balconies shall be approved by the Administration based on the guidelines developed by the Organization.¹

---

¹Refer to the guidelines to be developed by the Organization.

Chapter 10 Sample extraction smoke detection systems

Ingangsdatum: 01-07-2002

1 Applications

1 Applications

This chapter details the specifications for sample extraction smoke detection systems as required by chapter II-2 of the SOLAS Convention.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

1 Applications

This chapter details the specifications for sample extraction smoke detection systems as required by chapter II-2 of the SOLAS Convention.

1 Application

[Niet geldig (geldigheid vanaf 2012-01-01)]

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General requirements

General requirements

2.1.1 Wherever in the text of this chapter the word "system" appears, it shall mean "sample extraction smoke detection system".

2.1.2 Any required system shall be capable of continuous operation at all times except that systems operating on a sequential scanning principle may be accepted, provided that the interval between scanning the same position twice gives an overall response time to the satisfaction of the Administration.

2.1.3 The system shall be designed, constructed and installed so as to prevent the leakage of any toxic or flammable substances or fire-extinguishing media into any accommodation and service space, control station or machinery space.

2.1.4 The system and equipment shall be suitably designed to withstand supply voltage variations and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally encountered in ships and to avoid the possibility of ignition of a flammable gas air mixture.

2.1.5 The system shall be of a type that can be tested for correct operation and restored to normal surveillance without the renewal of any component.

2.1.6 An alternative power supply for the electrical equipment used in the operation of the system shall be provided.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

General requirements

2.1.1 Wherever in the text of this chapter the word "system" appears, it shall mean "sample extraction smoke detection system".

2.1.2 Any required system shall be capable of continuous operation at all times except that systems operating on a sequential scanning principle may be accepted, provided that the interval between scanning the same position twice gives an overall response time to the satisfaction of the Administration.

2.1.3 The system shall be designed, constructed and installed so as to prevent the leakage of any toxic or flammable substances or fire-extinguishing media into any accommodation and service space, control station or machinery space.

2.1.4 The system and equipment shall be suitably designed to withstand supply voltage variations and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally encountered in ships and to avoid the possibility of ignition of a flammable gas air mixture.

2.1.5 The system shall be of a type that can be tested for correct operation and restored to normal surveillance without the renewal of any component.

2.1.6 An alternative power supply for the electrical equipment used in the operation of the system shall be provided.

2.2 Component requirements

2.2 Component requirements

2.2.1 The sensing unit shall be certified to operate before the smoke density within the sensing chamber exceeds 6.65% obscuration per metre.

2.2.2 Duplicate sample extraction fans shall be provided. The fans shall be of sufficient capacity to operate under normal ventilation conditions in the protected area and shall give an overall response time to the satisfaction of the Administration.

2.2.3 The control panel shall permit observation of smoke in the individual sampling pipe.

2.2.4 Means shall be provided to monitor the airflow through the sampling pipes so designed as to ensure that as far as practicable equal quantities are extracted from each interconnected accumulator.

2.2.5 Sampling pipes shall be a minimum of 12 mm internal diameter except when used in conjunction with fixed gas fire-extinguishing systems when the minimum size of pipe shall be sufficient to permit the fire-extinguishing gas to be discharged within the appropriate time.

2.2.6 Sampling pipes shall be provided with an arrangement for periodically purging with compressed air.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

2.2 Component requirements

2.2.1 The sensing unit shall be certified to operate before the smoke density within the sensing chamber exceeds 6.65% obscuration per metre.

2.2.2 Duplicate sample extraction fans shall be provided. The fans shall be of sufficient capacity to operate under normal ventilation conditions in the protected area and shall give an overall response time to the satisfaction of the Administration.

2.2.3 The control panel shall permit observation of smoke in the individual sampling pipe.

2.2.4 Means shall be provided to monitor the airflow through the sampling pipes so designed as to ensure that as far as practicable equal quantities are extracted from each interconnected accumulator.

2.2.5 Sampling pipes shall be a minimum of 12 mm internal diameter except when used in conjunction with fixed gas fire-extinguishing systems when the minimum size of pipe shall be sufficient to permit the fire-extinguishing gas to be discharged within the appropriate time.

2.2.6 Sampling pipes shall be provided with an arrangement for periodically purging with compressed air.

2.3 Installation requirements

2.3 Installation requirements

2.3.1 Smoke accumulators
2.3.1.1 At least one smoke accumulator shall be located in every enclosed space for which smoke detection is required. However, where a space is designed to carry oil or refrigerated cargo alternatively with cargoes for which a smoke sampling system is required, means may be provided to isolate the smoke accumulators in such compartments for the system. Such means shall be to the satisfaction of the Administration.

2.3.1.2 Smoke accumulators shall be located for optimum performance and shall be spaced so that no part of the overhead deck area is more than 12 m measured horizontally from an accumulator. Where systems are used in spaces which may be mechanically ventilated, the position of the smoke accumulators shall be considered having regard to the effects of ventilation.

2.3.1.3 Smoke accumulators shall be positioned where impact or physical damage is unlikely to occur.

2.3.1.4 Not more than four accumulators shall be connected to each sampling point.

2.3.1.5 Smoke accumulators from more than one enclosed space shall not be connected to the same sampling point.

 

2.3.2 Sampling pipes
2.3.2.1 The sampling pipe arrangements shall be such that the location of the fire can be readily identified.

2.3.2.2 Sampling pipes shall be self-draining and suitably protected from impact or damage from cargo working.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

2.3 Installation requirements

2.3.1 Smoke accumulators
2.3.1.1 At least one smoke accumulator shall be located in every enclosed space for which smoke detection is required. However, where a space is designed to carry oil or refrigerated cargo alternatively with cargoes for which a smoke sampling system is required, means may be provided to isolate the smoke accumulators in such compartments for the system. Such means shall be to the satisfaction of the Administration.

2.3.1.2 Smoke accumulators shall be located for optimum performance and shall be spaced so that no part of the overhead deck area is more than 12 m measured horizontally from an accumulator. Where systems are used in spaces which may be mechanically ventilated, the position of the smoke accumulators shall be considered having regard to the effects of ventilation.

2.3.1.3 Smoke accumulators shall be positioned where impact or physical damage is unlikely to occur.

2.3.1.4 Not more than four accumulators shall be connected to each sampling point.

2.3.1.5 Smoke accumulators from more than one enclosed space shall not be connected to the same sampling point.

 

2.3.2 Sampling pipes
2.3.2.1 The sampling pipe arrangements shall be such that the location of the fire can be readily identified.

2.3.2.2 Sampling pipes shall be self-draining and suitably protected from impact or damage from cargo working.

2.4 System control requirements

2.4.1 Visual and audible fire signals
2.4.1.1 The control panel shall be located on the navigating bridge or in the continuously manned central control station.
2.4.1.2 Clear information shall be displayed on or adjacent to the control panel designating the spaces covered.
2.4.1.3 The detection of smoke or other products of combustion shall initiate a visual and audible signal at the control panel and the navigating bridge or continuously manned central control station.
2.4.1.4 Power supplies necessary for the operation of the system shall be monitored for loss of power. Any loss of power shall initiate a visual and audible signal at the control panel and the navigating bridge which shall be distinct from a signal indicating smoke detection.
2.4.2 Testing
Suitable instructions and component spares shall be provided for the testing and maintenance of the system.

Ingangsdatum: 01-07-2002

Geldig tot en met: 31-12-2011

2.4.1 Visual and audible fire signals
2.4.1.1 The control panel shall be located on the navigating bridge or in the continuously manned central control station.
2.4.1.2 Clear information shall be displayed on or adjacent to the control panel designating the spaces covered.
2.4.1.3 The detection of smoke or other products of combustion shall initiate a visual and audible signal at the control panel and the navigating bridge or continuously manned central control station.
2.4.1.4 Power supplies necessary for the operation of the system shall be monitored for loss of power. Any loss of power shall initiate a visual and audible signal at the control panel and the navigating bridge which shall be distinct from a signal indicating smoke detection.
2.4.2 Testing
Suitable instructions and component spares shall be provided for the testing and maintenance of the system.

Chapter 11 Low-location lightings systems

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for low-location lighting systems as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General requirements
Any required low-location lighting systems shall be approved by the Administration based on the guidelines* developed by the Organization, or to an international standard** acceptable to the Organization .

*Refer to the Guidelines for the evaluation, testing and application of low-location lighting on passenger ships as adopted by the Organization by resolution A.752(18).

** Refer to the Recommendations by the International Organization for Standardization, in particular, publication ISO 15370:2000 on Low-location lighting on passenger ships.

Chapter 12 Fixed emergency fire pumps

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for emergency fire pumps as required by chapter II-2 of the SOLAS Convention. This chapter is not applicable to passenger ships of l,000 gross tonnage and upwards. See SOLAS regulation II-2/10.2.2.3.1.1 for requirements for such ships.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General
The emergency fire pump shall be of a fixed independently driven power-operated pump.

2.2 Component requirements
2.2.1 Emergency fire pumps
2.2.1.1 Capacity of the pump
The capacity of the pump shall not be less than 40% of the total capacity of the fire pumps required by SOLAS regulation II-2/10.2.2.4.1. and in any case not less than the follow:
.1 for passenger ships less than 1000 gross tonnage and for cargo ships of 2000 gross tonnage and upwards -----------25 cubic meters/h ; and
.2 for cargo ships less than 2000 gross tonnage ---------------- 15 cubic meters/h.
2.2.1.2 Pressure at hydrants
When the pump is delivering the quantity of water required by paragraph 2.2.1.1, the pressure at any hydrants shall be not less than the minimum pressure required by chapter II-2 of the Convention.
2.2.1.3 Suction heads
The total suction head and the net positive suction head of the pump shall be determined having due regard to the requirements of the Convention and this chapter on the pump capacity and on the hydrant pressure under all conditions of list, trim, roll and pitch likely to be encountered in service. The ballast condition of a ship on entering or leaving a dry dock need not be considered a service condition.

2.2.2 Diesel engines and fuel tank
2.2.2.1 Starting of diesel engine
Any diesel driven power source for the pump shall be capable of being readily started in its cold condition down to the temperature of 0ºC by hand (manual) cranking. If this is impracticable, or if lower temperature are likely to be encountered, consideration is to be given to the provision and maintenance of heating arrangement, acceptable to the Administration so that ready starting will be assured. If hand (manual) starting is impracticable, the Administration may permit other means of starting. These means shall be such as to enable the diesel driven power source to be started at least six times within a period of 30 min and at least twice within the first 10 min.
2.2.2.2 Fuel tank capacity
Any service fuel tank shall contain sufficient fuel to enable the pump to run on full load for at least three hours and sufficient reserves of fuel shall be available outside the machinery space of category A to enable the pump to be run on full load for an additional 15 h.

Chapter 13 Arrangement of means of escape

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for means of escape as required by chapter II-2 of the SOLAS Convention.

2 Passenger ships

Ingangsdatum: 01-07-2002

2.1 Width of stairways

Ingangsdatum: 01-07-2002

2.1.1 Basic requirements for stairway width Stairways shall not be less than 900 mm in clear width. The minimum clear width of stairways shall be increased by 10 mm for every one person provided for in excess of 90 persons. The total number of persons to be evacuated by such stairways shall be assumed to be two thirds of the crew and the total number of passengers in the areas served by such stairways. The width of the stairways shall not be inferior to those determined by paragraph 2.1.2.

2.1.2 Calculation method of stairway width
2.1.2.1 Basic principles of the calculation
2.1.2.1.1This calculation method determines the minimum stairway width at each deck level, taking into account the consecutive stairways leading into the stairway under consideration.
2.1.2.1.2 It is the intention that the calculation method shall consider evacuation from enclosed spaces within each main vertical zone individually and take into account all of the persons using the stairway enclosures in each zone, even if they enter that stairway from another vertical zone.
2.1.2.1.3 For each main vertical zone the calculation shall be completed for the night time (case 1) and day time (case 2) and the largest dimension from either case used for determining the stairway width for each deck under consideration.
2.1.2.1.4The calculation of stairway widths shall be based upon the crew and passenger load on each deck. Occupant loads shall be rated by the designer for passenger and crew accommodation spaces, service spaces, control spaces and machinery spaces. For the purpose of the calculation the maximum capacity of a public space shall be defined by either of the following two values: the number of seats or similar arrangements, or the number obtained by assigning 2 square meters of gross deck surface area to each person.
2.1.2.2 Calculation method for minimum value
2.1.2.2.1Basic formulae In considering the design of stairway widths for each individual case which allow for the timely flow of persons evacuating to the muster stations from adjacent decks above and below, the following calculation methods shall be used (see figure 1 and figure 2):
when joining two decks: W=(N1+N2) 10mm;
when joining three decks: W=(N1+N2+0.5N3) 10mm;
when joining four decks: W=(N1+N2+0.5N3+0.25N4) 10mm;
when joining five decks or more decks the width of the stairways shall be determined by applying the above formula for four decks to the deck under consideration and to the consecutive deck,
where:
W = the required tread width between handrails of the stairway.
The calculated value of W may be reduced where available landing area S is provided in stairways at the deck level defined by subtracting P from Z, such that:
P = S 3.0 persons/ m ² ; Pmax = 0.25Z
where:
Z = the total number of persons expected to be evacuated on the deck being considered;
P = the number of persons taking temporary refuge on the stairway landing, which may be subtracted from Z to a maximum value of P = 0.25Z (to be rounded down to the nearest whole number) ;
S = the surface area ( m ² ) of the landing, minus the surface area necessary for the opening of doors and minus the surface area necessary for accessing the flow on stairs (see figure 1);
N = the total number of persons expected to use the stairway from each consecutive deck under consideration; N1 is for the deck with the largest number of persons using that stairway; N2 is taken for the deck with the next highest number of persons directly entering the stairway flow such that, when sizing the stairway width as each deck level, N1 > N2 > N3 > N4 (see figure 2). These decks are assumed to be on or upstream (i.e. away from the embarkation deck) of the deck being considered.

2.2 Details of stairways

Ingangsdatum: 01-07-2002

2.2.1 Handrails
Stairways shall be fitted with handrails on each side. The maximum clear width between handrails shall be 1800 mm.
2.2.2 Alignment of stairways
All stairways sized for more than 90 persons shall be aligned fore and aft.
2.2.3 Vertical rise and inclination
Stairways shall not exceed 3.5 m in vertical rise without the provision of a landing and shall not have an angle of inclination greater than 45 degrees.
2.2.4 Landings
Landings at each deck level shall be not less than 2 m ² in area and shall increase by 1 m ² for every 10 persons provided for in excess of 20 persons but need not exceed 16 m ² , except for those landings servicing public spaces having direct access onto the stairway enclosure.

2.3 Doorways and corridors
2.3.1 Doorways and corridors and intermediate landings included in means of escape shall be sized in the same manner as stairways.
2.3.2 The aggregate width of stairway exit doors to the assembly station * shall not be less than the aggregate width of stairways serving this deck.

* Refer to the Indication of the Assembly stations" in passenger ships (MSC/ Circ.777).

2.3 Doorways and corridors

Ingangsdatum: 01-07-2002

2.3.1 Doorways and corridors and intermediate landings included in means of escape shall be sized in the same manner as stairways.
2.3.2 The aggregate width of stairway exit doors to the assembly station * shall not be less than the aggregate width of stairways serving this deck.

* Refer to the Indication of the Assembly stations" in passenger ships (MSC/ Circ.777).

2.4 Evacuation routes to the embarkation deck

Ingangsdatum: 01-07-2002

2.4.1 Assembly station It shall be recognized that the evacuation routes to the embarkation deck may include an assembly station. In this case consideration shall be given to the fire-protection requirements and sizing of corridors and doors from the stairway enclosure to the assembly station and from the muster station to the embarkation deck, noting that evacuation of persons from assembly stations to embarkation positions will be carried out in small control groups.

2.4.2 Routes from the assembly station to the survival craft embarkation position Where the passengers and crew are held at an assembly station which is not at the survival craft embarkation position, the dimension of stairway width and doors from the assembly station to this position shall not be based on the number of persons in the controlled group. The width of these stairways and doors need not exceed 1,500 mm unless larger dimensions are required for evacuation of these spaces under normal conditions.

2.5 Means of escape plans

Ingangsdatum: 01-07-2002

2.5.1 Means of escape plans shall be provided indicating the following:
.1 the number of the crew and passengers in all normally occupied spaces;
.2 the number of crew and passengers expected to escape by stairway and through doorways, corridors and landings;
.3 assembly stations and survival craft embarkation positions;
.4 primary and secondary means of escape; and
.5 width of stairways, doors, corridors and landing areas.

2.5.2 Means of escape plans shall be accompanied by detailed calculation for determining the width of escape stairways, doors, corridors and landing areas.

3 Cargo ships

Ingangsdatum: 01-07-2002

3 - Cargo ships

Stairways and corridors used as means of escape shall be not less than 700 mm in clear width and shall have a handrail on one side.
Stairways and corridors with a clear width of 1,800 mm and over shall have handrails on both sides. "Clear width" is considered the distance between the handrail and the bulkhead on the other side or between the handrails.
The angle of inclination of stairways should be, in general, 45º but not greater than 50º Band in machinery spaces and small spaces not more than 60º .
Doorways which give access to a stairway shall be of the same size as the stairway.

Chapter 14 Fixed deck foam systems

Ingangsdatum: 01-07-2002

1 Application

Ingangsdatum: 01-07-2002

This chapter details the specifications for fixed deck foam systems which are required to be provided by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General

Ingangsdatum: 01-07-2002

2.1.1 The arrangements for providing foam shall be capable of delivering foam to the entire cargo tanks deck area as well as into any cargo tank the deck of which has been ruptured.

2.1.2 The deck foam system shall be capable of simple and rapid operation.

2.1.3 Operation of a deck foam system at its required output shall permit the simultaneous use of the minimum required number of jets of water at the required pressure from the fire main.( SC61)

2.2 Component requirements

Ingangsdatum: 01-07-2002

2.2.1 Foam solution and foam concentrate
2.2.1.1 The rate of supply of foam solution shall be not less than the greatest of the following:
.1 0.6 litre/minute per square metre of cargo tanks deck area, where cargo tanks deck area means the maximum breadth of the ship multiplied by the total longitudinal extent of the cargo tank spaces;
.2 6 litre/minute per square metre of the horizontal sectional area of the single tank having the largest such area; or
.3 3 litre/minute per square metre of the area protected by the largest monitor, such area being entirely forward of the monitor, but not less than 1,250 litre/minute.
2.2.1.2 Sufficient foam concentrate shall be supplied to ensure at least 20 min of foam generation in tankers fitted with an inert gas installation or 30 min of foam generation in tankers not fitted with an inert gas installation when using solution rates stipulated in paragraph 2.2.1, as appropriate, whichever is the greatest. The foam expansion ratio (i.e., the ratio of the volume of foam produced to the volume of the mixture of water and foam-making concentrate supplied) shall not generally exceed 12 to 1. Where systems essentially produce low expansion foam but an expansion ratio slightly in excess of 12 to 1, the quantity of foam solution available shall be calculated as for 12 to 1 expansion ratio systems.* When medium expansion ratio foam**(between 50 to 1 and 150 to 1 expansion ratio) is employed, the application rate of the foam and the capacity of a monitor installation shall be to the satisfaction of the Administration.

*Refer to the Guidelines for the performance and testing criteria, and surveys of low-expansion foam concentrates for fixed fire-extinguishing systems (MSC/Circ.582 and Corr.1).

** Refer to the Guidelines for the performance and testing criteria, and surveys of medium expansion foam concentrates for fixed fire-extinguishing systems (MSC/Circ.798

2.2.2 Monitors and foam applicators
2.2.2.1 Foam from the fixed foam system shall be supplied by means of monitors and foam applicators. At least 50% of the foam solution supply rate required in paragraphs 2.2.1.1.1 and
2.2.1.1.2 shall be delivered from each monitor. On tankers of less than 4,000 tons deadweight the Administration may not require installation of monitors but only applicators. However, in such a case the capacity of each applicator shall be at least 25% of the foam solution supply rate required in paragraphs 2.2.1.1.1 or 2.2.1.1.2.
2.2.2.2 The capacity of any monitor shall be at least 3 litre/minute of foam solution per square metre of deck area protected by that monitor, such area being entirely forward of the monitor. Such capacity shall be not less than 1,250 l/min.
2.2.2.3 The capacity of any applicator shall be not less than 400 l/min and the applicator throw in still air conditions shall be not less than 15 m.

2.3 Installation requirements

Ingangsdatum: 01-07-2002

2.3.1 Main control station
The main control station for the system shall be suitably located outside the cargo area, adjacent to the accommodation spaces and readily accessible and operable in the event of fire in the areas protected. (SC150)

2.3.2 Monitors
2.3.2.1 The number and position of monitors shall be such as to comply with paragraph 2.1.1.
2.3.2.2 The distance from the monitor to the farthest extremity of the protected area forward of that monitor shall not be more than 75% of the monitor throw in still air conditions.
2.3.2.3 A monitor and hose connection for a foam applicator shall be situated both port and starboard at the front of the poop or accommodation spaces facing the cargo tanks deck. On tankers of less than 4,000 tons deadweight a hose connection for a foam applicator shall be situated both port and starboard at the front of the poop or accommodation spaces facing the cargo tanks deck.

2.3.3 Applicators
2.3.3.1 The number of foam applicators provided shall be not less than four. The number and disposition of foam main outlets shall be such that foam from at least two applicators can be directed on to any part of the cargo tanks deck area.
2.3.3.2 Applicators shall be provided to ensure flexibility of action during fire-fighting operations and to cover areas screened from the monitors.
2.3.4 Isolation valves
Valves shall be provided in the foam main, and in the fire main when this is an integral part of the deck foam system, immediately forward of any monitor position to isolate damaged sections of those mains.

Chapter 15 Inert gas systems

 

Ingangsdatum: 01-07-2002

 

1 Applications

Ingangsdatum: 01-07-2002

This chapter details the specifications for inert gas systems as required by chapter II-2 of the SOLAS Convention.

2 Engineering specifications

Ingangsdatum: 01-07-2002

2.1 General

Ingangsdatum: 01-07-2002

2.1.1 Throughout this chapter the term cargo tank includes also slop tanks.

2.1.2 The inert gas system referred to in chapter II-2 of the Convention shall be designed, constructed and tested to the satisfaction of the Administration. It shall be so designed * and operated as to render and maintain the atmosphere of the cargo tanks non-flammable at all times, except when such tanks are required to be gas-free. In the event that the inert gas system is unable to meet the operational requirement set out above and it has been assessed that it is impracticable to effect a repair, then cargo discharge, deballasting and necessary tank cleaning shall only be resumed when the "emergency conditions" laid down in the Guidelines on Inert Gas Systems are complied with ** .

2.1.3 Required functions
The system shall be capable of:
.1 inerting empty cargo tanks by reducing the oxygen content of the atmosphere in each tank to a level at which combustion cannot be supported;
.2 maintaining the atmosphere in any part of any cargo tank with an oxygen content not exceeding 8% by volume and at a positive pressure at all times in port and at sea except when it is necessary for such a tank to be gas-free;
.3 eliminating the need for air to enter a tank during normal operations except when it is necessary for such a tank to be gas-free; and
.4 purging empty cargo tanks of a hydrocarbon gas, so that subsequent gas-freeing operations will at no time create a flammable atmosphere within the tank.

* Refer to the Revised standards for the design, testing and locating of devices to prevent the passage of flame into cargo tanks in tankers (MSC/Circ.677) and the Revised factors to be taking into consideration when designing cargo tank venting and gas-freeing arrangements (MSC/Circ.450/Rev.1).

** Refer to the Clarification of inert gas system requirements under the Convention (MSC/ Circ.485) and to the Revised guidelines for inert gas systems (MSC/ Circ.353, as amended by MSC/Circ.387).

2.2 Component requirements

Ingangsdatum: 01-07-2002

2.2.1 Supply of inert gas
2.2.1.1 The inert gas supply may be treated flue gas from main or auxiliary boilers. The Administration may accept systems using flue gases from one or more separate gas generators or other sources or any combination thereof, provided that an equivalent standard of safety is achieved. Such systems shall, as far as practicable, comply with the requirements of this chapter. Systems using stored carbon dioxide shall not be permitted unless the Administration is satisfied that the risk of ignition from generation of static electricity by the system itself is minimized.
2.2.1.2 The system shall be capable of delivering inert gas to the cargo tanks at a rate of at least 125% of the maximum rate of discharge capacity of the ship expressed as a volume.
2.2.1.3 The system shall be capable of delivering inert gas with an oxygen content of not more than 5 % by volume in the inert gas supply main to the cargo tanks at any required rate of flow.
2.2.1.4 Two fuel oil pumps shall be fitted to the inert gas generator. The Administration may permit only one fuel oil pump on condition that sufficient spares for the fuel oil pump and its prime mover are carried on board to enable any failure of the fuel oil pump and its prime mover to be rectified by the ship's crew.

2.2.2 Scrubbers
2.2.2.1 A flue gas scrubber shall be fitted which will effectively cool the volume of gas specified in paragraphs 2.2.1.2 and 2.2.1.3 and remove solids and sulphur combustion products. The cooling water arrangements shall be such that an adequate supply of water will always be available without interfering with any essential services on the ship. Provision shall also be made for an alternative supply of cooling water.
2.2.2.2 Filters or equivalent devices shall be fitted to minimize the amount of water carried over to the inert gas blowers.
2.2.2.3 The scrubber shall be located aft of all cargo tanks, cargo pump-rooms and cofferdams separating these spaces from machinery spaces of category A.

2.2.3 Blowers
2.2.3.1 At least two blowers shall be fitted and be capable of delivering to the cargo tanks at least the volume of gas required by paragraphs 2.2.1.2 and 2.2.1.3. For systems with gas generators the Administration may permit only one blower if that system is capable of delivering the total volume of gas required by paragraphs 2.2.1.2 and 2.2.1.3 to the protected cargo tanks, provided that sufficient spares for the blower and its prime mover are carried on board to enable any failure of the blower and its prime mover to be rectified by the ship's crew.
2.2.3.2 The inert gas system shall be so designed that the maximum pressure which it can exert on any cargo tank will not exceed the test pressure of any cargo tank. Suitable shutoff arrangements shall be provided on the suction and discharge connections of each blower. Arrangements shall be provided to enable the functioning of the inert gas plant to be stabilized before commencing cargo discharge. If the blowers are to be used for gas-freeing, their air inlets shall be provided with blanking arrangements.
2.2.3.3 The blowers shall be located aft of all cargo tanks, cargo pump-rooms and cofferdams separating these spaces from machinery spaces of category A.

2.2.4 Water seals
2.2.4.1 The water seal referred to in paragraph 2.3.1.4.1 shall be capable of being supplied by two separate pumps, each of which shall be capable of maintaining an adequate supply at all times.
2.2.4.2 The arrangement of the seal and its associated fittings shall be such that it will prevent backflow of hydrocarbon vapours and will ensure the proper functioning of the seal under operating conditions.
2.2.4.3 Provision shall be made to ensure that the water seal is protected against freezing, in such a way that the integrity of seal is not impaired by overheating.
2.2.4.4 A water loop or other approved arrangement shall also be fitted to each associated water supply and drain pipe and each venting or pressure-sensing pipe leading to gas-safe spaces. Means shall be provided to prevent such loops from being emptied by vacuum.
2.2.4.5 The deck water seal and loop arrangements shall be capable of preventing return of hydrocarbon vapours at a pressure equal to the test pressure of the cargo tanks.
2.2.4.6 In respect of paragraph 2.4.3.1.7, the Administration shall be satisfied as to the maintenance of an adequate reserve of water at all times and the integrity of the arrangements to permit the automatic formation of the water seal when the gas flow ceases. The audible and visual alarm on the low level of water in the water seal shall operate when the inert gas is not being supplied.

2.3 Installation requirements

Ingangsdatum: 01-07-2002

2.3.1 Safety measures in the system
2.3.1.1 Flue gas isolating valves
Flue gas isolating valves shall be fitted in the inert gas supply mains between the boiler uptakes and the flue gas scrubber. These valves shall be provided with indicators to show whether they are open or shut, and precautions shall be taken to maintain them gas-tight and keep the seatings clear of soot. Arrangements shall be made to ensure that boiler soot blowers cannot be operated when the corresponding flue gas valve is open.
2.3.1.2 Prevention of flue gas leakage
2.3.1.2.1 Special consideration shall be given to the design and location of scrubber and blowers with relevant piping and fittings in order to prevent flue gas leakages into enclosed spaces.
2.3.1.3.2To permit safe maintenance, an additional water seal or other effective means of preventing flue gas leakage shall be fitted between the flue gas isolating valves and scrubber or incorporated in the gas entry to the scrubber.
2.3.1.3 Gas regulation valves
2.3.1.3.1A gas regulating valve shall be fitted in the inert gas supply main. This valve shall be automatically controlled to close as required in paragraphs 2.3.1.5. It shall also be capable of automatically regulating the flow of inert gas to the cargo tanks unless means are provided to automatically control the speed of the inert gas blowers required in paragraph 2.2.3.
2.3.1.3.2The valve referred to in paragraph 2.3.1.3.1 shall be located at the forward bulkhead of the forward most gas-safe space * through which the inert gas supply main passes.
2.3.1.4 Non-return devices of flue gas
2.3.1.4.1At least two non-return devices, one of which shall be a water seal, shall be fitted in the inert gas supply main, in order to prevent the return of hydrocarbon vapour to the machinery space uptakes or to any gas-safe spaces under all normal conditions of trim, list and motion of the ship. They shall be located between the automatic valve required by paragraph 2.3.1.3.1 and the aftermost connection to any cargo tank or cargo pipeline.
2.3.1.4.2The devices referred to in paragraph 2.3.1.4.1 shall be located in the cargo area on deck.
2.3.1.4.3The second device shall be a non-return valve or equivalent capable of preventing the return of vapours or liquids and fitted forward of the deck water seal required in paragraph
2.3.1.4.1. It shall be provided with positive means of closure. As an alternative to positive means of closure, an additional valve having such means of closure may be provided forward of the non-return valve to isolate the deck water seal from the inert gas main to the cargo tanks.
2.3.1.4.4As an additional safeguard against the possible leakage of hydrocarbon liquids or vapours back from the deck main, means shall be provided to permit this section of the line between the valve having positive means of closure referred to in paragraph 2.3.1.4.3 and the valve referred to in paragraph 2.3.1.3 to be vented in a safe manner when the first of these valves is closed.
2.3.1.5 Automatic shutdown
2.3.1.5.1Automatic shutdown of the inert gas blowers and gas regulating valve shall be arranged on predetermined limits being reached in respect of paragraphs 2.4.3.1.1, 2.4.3.1.2 and 2.4.3.1.3.
2.3.1.5.2Automatic shutdown of the gas regulating valve shall be arranged in respect of paragraph 2.4.3.1.4.
2.3.1.6 Oxygen rich gas
In respect of paragraph 2.4.3.1.5, when the oxygen content of the inert gas exceeds 8% by volume, immediate action shall be taken to improve the gas quality. Unless the quality of the gas improves, all cargo tank operations shall be suspended so as to avoid air being drawn into the tanks and the isolation valve referred to in paragraph 2.3.1.4.3 shall be closed.

* A gas-safe space is a space in which the entry of hydrocarbon gases would produce hazards with regard to flammability or toxicity.

2.3.2 Inert gas lines
2.3.2.1 The inert gas main may be divided into two or more branches forward of the non-return devices required by paragraphs 2.2.4 and 2.3.1.4.
2.3.2.2 The inert gas supply main shall be fitted with branch piping leading to each cargo tank. Branch piping for inert gas shall be fitted with either stop valves or equivalent means of control for isolating each tank. Where stop valves are fitted, they shall be provided with locking arrangements, which shall be under the control of a responsible ship's officer. The control system operated shall provide unambiguous information of the operational status of such valves.
2.3.2.3 In combination carriers, the arrangement to isolate the slop tanks containing oil or oil residues from other tanks shall consist of blank flanges which will remain in position at all times when cargoes other than oil are being carried except as provided for in the relevant section of the Guidelines on Inert Gas Systems*.

* Refer to the Revised guidelines for inert-gas system (MSC/Circ.353), as amended by MSC/Circ.387.

2.3.2.4 Means shall be provided to protect cargo tanks against the effect of overpressure or vacuum caused by thermal variations when the cargo tanks are isolated from the inert gas mains.
2.3.2.5 Piping systems shall be so designed as to prevent the accumulation of cargo or water in the pipelines under all normal conditions.
2.3.2.6 Arrangements shall be provided to enable the inert gas main to be connected to an external supply of inert gas. The arrangements shall consist of a 250 mm nominal pipe size bolted flange, isolated from the inert gas main by a valve and located forward of the non-return valve referred to in paragraph 2.3.1.4.3. The design of the flange should conform to the appropriate class in the standards adopted for the design of other external connections in the ship's cargo piping system.
2.3.2.7 If a connection is fitted between the inert gas supply main and the cargo piping system, arrangements shall be made to ensure an effective isolation having regard to the large pressure difference which may exist between the systems. This shall consist of two shutoff valves with an arrangement to vent the space between the valves in a safe manner or an arrangement consisting of a spool-piece with associated blanks.( SC62 )
2.3.2.8 The valve separating the inert gas supply main from the cargo main and which is on the cargo main side shall be a non-return valve with a positive means of closure.

2.4 Operation and control requirements

Ingangsdatum: 01-07-2002

2.4.1 Indication devices
Means shall be provided for continuously indicating the temperature and pressure of the inert gas at the discharge side of the gas blowers, whenever the gas blowers are operating.

2.4.2 Indicating and recording devices
2.4.2.1 Instrumentation shall be fitted for continuously indicating and permanently recording, when inert gas is being supplied:
.1 the pressure of the inert gas supply mains forward of the non-return devices required by paragraph 2.3.1.4.1; and
.2 the oxygen content of the inert gas in the inert gas supply mains on the discharge side of the gas blowers.
2.4.2.2 The devices referred to in paragraph 2.4.2.1 shall be placed in the cargo control room where provided. But where no cargo control room is provided, they shall be placed in a position easily accessible to the officer in charge of cargo operations.
2.4.2.3 In addition, meters shall be fitted:
.1 in the navigating bridge to indicate at all times the pressure referred to in paragraph 2.4.2.1.1 and the pressure in the slop tanks of combination carriers, whenever those tanks are isolated from the inert gas supply main; and
.2 in the machinery control room or in the machinery space to indicate the oxygen content referred to in paragraph 2.4.2.1.2.
2.4.2.4 Portable instruments for measuring oxygen and flammable vapour concentration shall be provided. In addition, suitable arrangement shall be made on each cargo tank such that the condition of the tank atmosphere can be determined using these portable instruments.
2.4.2.5 Suitable means shall be provided for the zero and span calibration of both fixed and portable gas concentration measurement instruments, referred to in paragraphs 2.4.2.

2.4.3 Audible and visual alarms
2.4.3.1 For inert gas systems of both the flue, gas type and the inert gas generator type, audible and visual alarms shall be provided to indicate:
.1 low water pressure or low water flow rate to the flue gas scrubber as referred to in paragraph 2.2.2.1;
.2 high water level in the flue gas scrubber as referred to in paragraph 2.2.2.1;
.3 high gas temperature as referred to in paragraph 2.4.1;
.4 failure of the inert gas blowers referred to in paragraph 2.2.3;
.5 oxygen content in excess of 8% by volume as referred to in paragraph 2.4.2.1.2;
.6 failure of the power supply to the automatic control system for the gas regulating valve and to the indicating devices as referred to in paragraphs 2.3.1.3 and 2.4.2.1;
.7 low water level in the water seal as referred to in paragraph 2.3.1.4.1;
.8 gas pressure less than 100 mm water gauge as referred to in paragraph 2.4.2.1.1. The alarm arrangement shall be such as to ensure that the pressure in slop tanks in combination carriers can be monitored at all times; and
.9 high gas pressure as referred to in paragraph 2.4.2.1.1.
2.4.3.2 For inert gas systems of the inert gas generator type, additional audible and visual alarms shall be provided to indicate:
.1 insufficient fuel oil supply;
.2 failure of the power supply to the generator; and
.3 failure of the power supply to the automatic control system for the generator.
2.4.3.3 The alarms required in paragraphs 2.4.3.1.5, 2.4.3.1.6 and 2.4.3.1.8 shall be fitted in the machinery space and cargo control room, where provided, but in each case in such a position that they are immediately received by responsible members of the crew.
2.4.3.4 An audible alarm system independent of that required in paragraph 2.4.3.1.8 or automatic shutdown of cargo pumps shall be provided to operate on predetermined limits of low pressure in the inert gas main being reached.

2.4.4 Instruction manuals
Detailed instruction manuals shall be provided on board, covering the operations, safety and maintenance requirements and occupational health hazards relevant to the inert gas system and its application to the cargo tank system.* The manuals shall include guidance on procedures to be followed in the event of a fault or failure of the inert gas system.

* Refer to the Revised guidelines for inert-gas system (MSC/Circ.353), as amended by MSC/Circ.387.

Chapter 16 Fixed Hydrocarbon gas detection systems

 

Ingangsdatum: 01-07-2011

 

1 Application

[Niet geldig (geldigheid vanaf 2012-01-01)]

2 Engineering specifications

Engineering specifications

2.1 General

[Niet geldig (geldigheid vanaf 2012-01-01)]

2.2 Component requirements

2.2 Component requirements

2.2.1 Gas sampling lines

[Niet geldig (geldigheid vanaf 2012-01-01)]

2.2.2 Gas analysis unit

[Niet geldig (geldigheid vanaf 2012-01-01)]

2.2.3 Gas detection equipment

[Niet geldig (geldigheid vanaf 2012-01-01)]

• Informatietype: Internationaal
• Documentsoort: Code
• Toegangsrechten: Extern
• Identificatie: PUC_2394_14
• Versie: 4
• Datum beschikbaarheid: 19-04-2011
• Geldigheid van: 01-07-2011
• tot en met: 31-12-2011
• Wijzigingsdatum: 24-11-2016
• Titel: 02 FSS-Code Fire Safety Systems Code - Res. MSC.98(73)
• Organisatie: International Maritime Organization (IMO)
• Taal: Nederlands
• Thema: Codes