"2021年俄罗斯海事登记规定海船分类和建造的防火规则"。

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The Russian Maritime Register of Shipping (RMRS) has recently released their updated rules for the classification and construction of sea-going ships, specifically focusing on fire protection measures. The document, titled "Rules for the Classification and Construction of Sea-Going Ships Part VI Fire Protection," outlines the regulatory requirements and guidelines for ensuring the safety of vessels in terms of fire prevention and control. The rules cover various aspects of fire protection, including the design and installation of fire detection and extinguishing systems, as well as structural fire protection measures. Vessels are required to comply with specific standards and regulations to mitigate the risk of fire onboard and ensure the safety of passengers and crew members. The RMRS rules aim to provide a comprehensive framework for assessing the fire safety of sea-going ships, taking into account factors such as the type and size of the vessel, its intended use, and the materials used in its construction. By following these regulations, ship owners and operators can ensure that their vessels meet the necessary safety standards and are prepared to respond effectively in the event of a fire emergency. Overall, the RMRS rules for fire protection underscore the importance of proactive measures to prevent fires at sea and emphasize the significance of having robust fire safety systems in place. By adhering to these regulations, the maritime industry can enhance the overall safety and security of sea travel for both passengers and crew members.

Rules for the Classification and Construction of Sea-Going Ships (Part VI)

1.7 ALTERNATIVE DESIGN AND ARRANGEMENTS

1.7.1 General.

1.7.1.1 Fire safety design and arrangements may deviate from the requirements of the

present Part, provided, that the design and arrangements meet the fire safety objectives and

the functional requirements.

1.7.1.2 If the design and arrangements deviate from the prescriptive requirements of the

present Part, engineering analysis, evaluation and approval of the alternative design and

arrangements shall be carried out in accordance with the requirements of the present Chapter.

1.7.2 Engineering analysis.

1.7.2.1 The engineering analysis submitted to the Register shall be prepared based on

the Guidelines on Alternative Design and Arrangements for Fire Safety

(refer to IMO circular MSC/Circ.1002), and shall include, as a minimum, the following

elements:

.1 determination of the ship type and space(s) concerned;

.2 identification of prescriptive requirement(s) with which the ship or the space(s)

will not comply;

.3 identification of the fire and explosion hazards of the ship or the space(s) concerned

including:

.3.1 identification of the possible ignition sources;

.3.2 identification of the potential for the spread of fire of each space concerned;

.3.3 identification of the smoke and toxic products generation potential for each space

concerned;

.3.4 identification of the potential for the spread of fire, smoke or of toxic products

generation from the space(s) concerned to other spaces;

.4 determination of the required fire safety performance criteria for the ships or the

space(s) concerned addressed by the prescriptive requirement(s), which shall:

.4.1 be based on the fire safety objectives and on the functional requirements of the

present Part;

.4.2 provide a degree of safety not less than that achieved by using the prescriptive

requirements;

.4.3 be quantifiable and measurable;

.5 detailed description of the alternative design and arrangements, including a list

of the assumptions used in the design and any proposed operational restrictions or conditions;

.6 technical justification demonstrating that the alternative design and arrangements

meet the required fire safety performance criteria.

1.7.3 Evaluation of the alternative design and arrangements.

1.7.3.1 The engineering analysis required in 1.7.2 shall be evaluated and approved by

the Register taking into account the Guidelines developed by IMO.

1.7.3.2 A copy of the documentation, as approved by the Register, indicating that the

alternative design and arrangements comply with the requirements of the present Chapter

shall be carried on board a ship.

1.7.4 Re-evaluation due to change of conditions.

1.7.4.1 If the assumptions and operational restrictions that were stipulated in the

alternative design and arrangements are changed, the engineering analysis shall be carried

out again under the changed condition and shall be approved by the Register.

Rules for the Classification and Construction of Sea-Going Ships (Part VI) 
17 
 
2 STRUCTURAL FIRE PROTECTION 
 
 
2.1 GENERAL 
 
2.1.1  Requirements for materials. 
2.1.1.1  The hull, superstructures, structural bulkheads decks and deckhouses shall be 
manufactured of steel or  other  equivalent material.  For  the  purpose  of using the  definition 
of steel or other equivalent material, given in 1.2.1, "applicable fire exposure" shall correspond 
to the  standards of fire integrity and insulation, specified in the appropriate bulkheads and 
decks  fire  integrity  tables.  For  example,  if  for  such  divisions  as  decks  or  side  and  end 
bulkheads of deckhouses fire integrity equal to "B-0" is allowed, then "applicable fire exposure" 
shall be equal to half an hour. 
If aluminum alloys are used, the requirements of 2.1.1.3 shall be met. 
2.1.1.2  Casings  and  crowns  of machinery  spaces  of category A shall  be  of steel and 
insulated as required by Tables 2.3.3-1 and 2.4.2-2 as appropriate. 
The  floor  plating  of normal  passageways  in  machinery  spaces  of category A  shall  be 
made of steel. 
2.1.1.3  If  any  part  of the  division  is  manufactured  of aluminum  alloys,  the  following 
requirements shall be complied with: 
.1  parts of "А"  or "В" class divisions, made  of aluminum alloy, except the divisions, 
which are not loadbearing, shall be insulated so, that the temperature of the structural core 
of the specimen does not rise more than 200 °C above the ambient temperature at any time 
during the applicable fire exposure at the standard fire test; 
.2  special  attention  shall  be  given  to  insulation  of aluminum  alloy  components 
of columns, stanchions and other structural members required to support lifeboat and life raft 
stowage, launching and embarkation areas and "A" and "B" class divisions to ensure that: 
2.1  such  members required  to  support  lifeboat  and  life  raft  stowage, launching  and 
embarkation  areas  and  "A" type  divisions  comply  with  the  temperature  rise  limitation 
requirement, as specified in 2.1.1.3.1, at the end of an hour; 
2.2  such members required to support "B" class divisions comply with the temperature 
rise limitation requirement, as specified in 2.1.1.3, at the end of half an hour. 
2.1.1.4  In  accommodation  spaces,  service  spaces  and  control  stations  of all  types 
of ships the total mass of combustible materials of each enclosed space shall be calculated 
based on the following formula:  
 
𝑀
𝑟𝑒𝑙
= 𝑀
𝑡
/𝑆  (2.1.1.4) 
 
where  𝑀
𝑟𝑒𝑙
  =  the total mass of combustible materials per unit area of the space, in kg/m²; 
𝑀
𝑡
  =  the total mass of combustible materials of the space, in kg; 
𝑆  =  the floor area of the space, in m². 
 
The following combustible materials shall be included to the calculations: 
.1  construction materials as cables insulation, plastic pipes, veneers and combustible 
materials permitted to be used according to the present Part; 
.2  outfitting, which may be installed during construction or provided by the shipowner 
or crew, including furniture, bedding components and electrical appliances. 
Maximum values for the total mass of combustible materials per unit area 𝑀
𝑟𝑒𝑙
, in kg/m², 
shall not exceed the values specified in Table 2.1.1.4.2. Space categories shall correspond to 
the ones specified in 2.2.1.3, 2.2.1.5, 2.3.3 or 2.4.2, depending on the ship type. 

Rules for the Classification and Construction of Sea-Going Ships (Part VI)

T a b l e 2.1.1.4.2

Ship type

Space category

Passenger ship carrying more

than 36 passengers

Passenger ship

carrying not more

than 36 passengers

Cargo

ships

Stairways, corridors

Control stations

Accommodation spaces

15 — minor fire risk,

35 — moderate and greater fire

risk

Service spaces surrounded by

"A" class divisions

2.1.1.5 Insulation materials shall be non-combustible, except for use in cargo spaces,

postal and baggage storerooms and refrigerated storerooms of service spaces.

In the spaces where oily products may be present the insulation surface shall be oily

vapours- impermeable, which may be provided by coating insulation with galvanized steel

sheets, reinforced aluminium foil, aluminium foil laminated fiberglass cloth or by other means.

Vapour barriers and adhesives used in conjunction with anti-condensation insulation

of cooling water piping of the conditioning systems and cooling systems, as well as insulation

of piping valves, fittings and joints may be combustible but they shall be kept to the minimum,

as far as practicable, while their exposed surfaces shall be low flame-spread.

Insulating materials shall not contain asbestos.

2.1.1.6 Primary deck coverings, if applied within accommodation and service spaces and

control stations or on cabin balconies of passenger ships constructed on or after 1 July 2008

shall be of an approved material, which has low flame spread characteristics,

this being determined in accordance with the FTP Code.

Where a floor covering is required to be low flame-spread; all layers shall comply with the

requirement of 1.6.3.5. If the floor covering has a multilayer construction, the tests shall be

conducted for each layer or combinations of some layers of such covering. At that, the Register

approval is applicable to the tested combinations of layers. Primer or similar thin film of paint on

deck plating need not comply with the requirements of 1.6.3.5.

On passenger ships constructed on or after 1 July 2008, primary deck coverings on cabin

balconies shall not give rise to smoke, toxic or explosive hazards at elevated temperatures, this

being determined in accordance with the FTP Code.

2.1.1.7 Paints, varnishes and other finishings used on exposed surfaces inside service

and accommodation spaces, control stations and stairways enclosures shall not generate

excessive quantity of smoke and toxic vapours, this being determined in accordance with the

FTP Code.

This requirement applies to the finish materials of bulkheads, decks, floor coverings, linings

and ceilings, but is not applicable to cables insulation, plastic piping and furniture.

Finish materials and primary deck coverings (refer to 2.1.1.6) with total thermal emission

of not more than 0,2 MJ and maximum value of thermal emission factor not more

than 1,0 kW (both values are determined in accordance with Part 5 of the FTP Code and are

considered as complying with the requirements of 1.6.3.2 without tests.

On board oil tankers, chemical tankers and oil recovery ships the use of aluminium coatings

containing greater than 10 % aluminium by weight in the dry film is prohibited in cargo tanks,

cargo tank deck area, pump rooms, cofferdams or any other area where cargo vapour

may accumulate.

On passenger ships constructed on or after 1 July 2008, paints, varnishes and other

finishes used on exposed surfaces of cabin balconies, excluding natural hard wood decking

systems, shall not be capable of producing excessive quantities of smoke and toxic products,

this being determined in accordance with the FTP Code.

Rules for the Classification and Construction of Sea-Going Ships (Part VI)

2.1.1.8 In accordance with the FTP Code the following surface shall have low flame spread

characteristics:

.1 on passenger ships:

.1.1 exposed surfaces in corridors and stairway enclosures, as well as bulkheads and

plating, ceiling linings in accommodation and service spaces (except saunas) and control stations;

.1.2 surfaces and grounds in concealed and inaccessible spaces in accommodation and

service spaces and control stations;

.2 on fishing vessels of 24 m in length and over and on cargo ships of 500 gross tonnage

and upwards:

.2.1 exposed surfaces in corridors and stairway enclosures and of ceilings in

accommodation and service spaces (except saunas) and control stations;

.2.2 surfaces and grounds in concealed and inaccessible spaces in accommodation and

service spaces and control stations;

.3 glues and sealants used in the "А" and "В" class divisions;

.4 exposed surfaces of cabin balconies, except for natural hard wood decking systems;

.5 primary deck coverings.

The above requirements apply to finish materials of bulkheads, decks, floor coverings, linings

and ceilings, but is not applicable to plastic piping, electrical cables and furniture.

2.1.1.9 On passenger ships carrying more than 36 passengers in accommodation spaces,

the furniture and furnishings of which constitute restricted fire risk, upholstered furniture, bedding

components, draperies and curtains and other vertically supported textile materials shall be

satisfactorily tested in compliance with the FTP Code (refer to 1.6.3.7, 1.6.3.8). For other types

of ships, the said requirements are recommended only.

2.1.1.10 On passenger ships, "A", "B" and "C" class divisions in accommodation and service

spaces and cabin balconies, which are faced with combustible materials, facings, mouldings,

decorations and veneers shall comply with the requirements of the present paragraph and

2.1.1.6 – 2.1.1.8. However, traditional wooden benches and wooden linings of bulkheads and

ceilings are allowed in saunas and such materials may not be taken into calculation required by

the paragraph.

On cargo ships, non-combustible bulkheads, ceilings and linings fitted in accommodation and

service spaces may be faced with combustible materials, facings, mouldings, decorations and

veneers provided such spaces are bounded by non-combustible bulkheads, ceilings and linings

in accordance with the requirements of the present paragraph and 2.1.1.6 – 2.1.1.8.

Combustible materials used on the surfaces and linings shall have calorific value

not exceeding 45 MJ/m² taking into consideration their thickness. Requirements of this article are

not applicable to the surfaces of furniture fixed to linings or bulkheads.

Calorific value 𝑄, in MJ/m², taking into consideration the thickness of covering material,

is determined by the formula

𝑄 = 𝑄

𝑔

𝑝𝑠 (2.1.1.10)

where 𝑄

𝑔

= the maximum specific heat of combustion determined oil in accordance with ISO 1716

"Construction Materials. Determination of the Calorific Potential", in MJ/kg;

𝑝 = the density of material, in kg/m³;

𝑠 = the thickness of material, in m.

Where combustible materials are used in accordance with the present paragraph, they shall

comply with the following requirements:

.1 the total volume of combustible facings, mouldings, decorations and veneers in any

accommodation or service spaces shall not exceed a volume equivalent to 2,5 mm veneer of the

combined area of the walls and ceiling linings. The furniture fixed to linings, bulkheads or decks

may be not included into the calculation of the total volume of combustible materials;

Rules for the Classification and Construction of Sea-Going Ships (Part VI)

.2 in case of ships fitted with an automatic sprinkler system complying with the

provisions of the FSS Code, the above volume may include some combustible materials used

for erection of "C" class divisions.

On non-self-propelled ships without regard of their gross tonnage it is permissible to fit

non-combustible bulkheads, linings and ceilings with combustible covering less than 2 mm

thick except corridors, stairway enclosures as well as control stations where thickness

of covering shall not exceed 1,5 mm.

The furnishings specified in the present paragraph and applied on cabin balconies may

not be taken into calculation required by the paragraph.

2.1.1.11 All waste receptacles shall be constructed of non-combustible materials with no

openings in the sides and bottom.

Containers constructed of combustible materials may be used in galleys, pantries, bars,

garbage handling or storage spaces and incinerator rooms provided they are intended purely

for the carriage of wet waste, glass bottles or metal cans and are suitably marked.

2.1.2 Fire-fighting divisions.

2.1.2.1 "A" class divisions are those divisions which are formed by bulkheads or decks

complying with the following requirements:

.1 they shall be constructed of steel or other equivalent material;

.2 they shall have respective stiffening elements;

.3 they shall be so constructed as to be capable of preventing the passage of smoke

and flame up to the end of the 60-min standard fire test;

.4 they shall be so insulated with approved non-combustible material that the average

temperature of the unexposed side will not rise more than 140 °C above the original

temperature, nor will the temperature, at any one point, including any joint, rise more

than 180 °C above the original temperature.

Depending on the time during which the above-indicated temperature rise is ensured

in the course of the standard fire test, the following symbols are given

to divisions: "A-60" — during 60 min; "A-30" — during 30 min; "A-15" — during 15 min;

"A-0" — during 0 min.

2.1.2.2 When approving the structural fire protection the danger of heat transfer through

joints and ends of insulation shall be taken into account. Insulation of steel and aluminium

decks and bulkheads shall extend for at least 450 mm beyond boundaries of structures

forming the given space. If a space is divided by the "A" class deck or bulkhead with an

insulation of different size, then an insulation of greater size shall extend over the deck and

bulkhead for at least 450 mm from the less insulated structure.

Measures taken to prevent heat transfer through joints and ends of insulation of decks

and bulkheads are shown in Figs. 2.1.2.2-1 and 2.1.2.2-2. The Register may approve some

other variants of such measures, provided the efficacy of the proposed structure is verified by

the results of tests conducted in accordance with the FTP Code.

Where the lower part of insulation is cut off to provide drainage, the structure shall comply

with Fig. 2.1.2.2-3.

Fig. 2.1.2.2-1

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