DNVGL-RU-YACHT-Pt4Ch11 Fire safety - Rules and … · P a r t 4 C h a p t e r 1 1 C h a n g e s-c u r r e n t Rules for classification: Yachts — DNVGL-RU-YACHT-Pt4Ch11. Edition

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DNV GL AS

RULES FOR CLASSIFICATION

Yachts

Edition October 2016

Part 4 Systems and components

Chapter 11 Fire safety

FOREWORD

DNV GL rules for classification contain procedural and technical requirements related to obtainingand retaining a class certificate. The rules represent all requirements adopted by the Society asbasis for classification.

© DNV GL AS October 2016

Any comments may be sent by e-mail to [email protected]

If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of DNV GL, then DNV GL shallpay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to tentimes the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million.

In this provision "DNV GL" shall mean DNV GL AS, its direct and indirect owners as well as all its affiliates, subsidiaries, directors, officers,employees, agents and any other acting on behalf of DNV GL.

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Rules for classification: Yachts — DNVGL-RU-YACHT-Pt4Ch11. Edition October 2016 Page 3Fire safety

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CURRENT – CHANGES

This document supersedes the December 2015 edition.Changes in this document are highlighted in red colour. However, if the changes involve a whole chapter,section or sub-section, normally only the title will be in red colour.

Main changes October 2016, entering into force as from date ofpublication

• Sec.1 General— Sec.1 [3]: Certification requirements included.

• Sec.2 Structural fire protection requirements for yachts under 500 GT carrying no morethan 12 passengers— Sec.2 [2]: Documentation requirements included.

• Sec.3 Structural fire protection requirements for yachts of 500 GT and over carrying nomore than 12 passengers— Sec.3 [2.2]: Documentation requirements included— Sec.3 [11]: Sub-section re-written— Sec.3 [12.3.4]: New paragraphs added.

• Sec.4 Structural fire protection requirements for yachts carrying 13 to 36 passengers— Sec.4 [2]: Documentation requirements included.

• Sec.5 Fire protection measures and fire extinguishing— Sec.5 [1]: Documentation requirements included.

Editorial correctionsIn addition to the above stated changes, editorial corrections may have been made.

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CONTENTS

Current – changes.................................................................................................. 3

Section 1 General....................................................................................................61 Objective..............................................................................................62 Definitions........................................................................................... 63 Documentation required...................................................................... 6

Section 2 Structural fire protection requirements for yachts under 500 GTcarrying not more than 12 passengers...................................................................7

1 Application...........................................................................................72 Procedural requirements..................................................................... 73 Structural integrity.............................................................................. 84 Fire protection materials and details of construction...........................85 Ventilation........................................................................................... 96 Means of escape.................................................................................. 9

Section 3 Structural fire protection requirements for yachts of 500 GT and overcarrying not more than 12 passengers.................................................................10

1 Application.........................................................................................102 Procedural requirements................................................................... 103 Structural integrity............................................................................ 124 Main vertical zones and horizontal zones.......................................... 135 Fire integrity of bulkheads and decks................................................136 Penetration in fire-resisting divisions and prevention of heattransmission......................................................................................... 177 Doors in fire-resisting divisions.........................................................188 Fire protection materials and details of construction.........................199 Fire detection and alarm................................................................... 2010 Alternative approach to the structural fire protection ofaccommodation and service spaces with special outfit.........................2011 Ventilation systems......................................................................... 2212 Means of escape.............................................................................. 2613 Helicopter decks.............................................................................. 28

Section 4 Structural fire protection requirements for yachts carrying 13 to 36passengers............................................................................................................29

1 Application.........................................................................................292 Procedural requirements................................................................... 29

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Section 5 Fire protection measures and fire extinguishing................................... 321 Procedural requirements................................................................... 322 Fire protection measures...................................................................323 Fire extinguishing arrangements....................................................... 34

Changes – historic................................................................................................39

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SECTION 1 GENERAL

1 ObjectiveThe objective of these rules is to define design criteria, construction standards and other safety measuresconcerning fire protection of yachts with a length L ≥ 24 m.

2 DefinitionsThe meaning of terms and phrases used in these rules corresponds with the definitions as stated in therelevant chapters of SOLAS 74 as amended.

3 Documentation required

3.1 Verification of design is based on review of plans and documentation containing relevant informationelements.

3.2 Plans and documentation shall be submitted for review and approval stamping as required by Sec.2, Sec.3,Sec.4 and Sec.5 respectively depending on the Society’s scope of work.

3.3 Approval certificates issued by administrations, incl. MED certificates, or by IACS member societies aregenerally accepted unless DNV GL approved equipment is expressly required or specific guidance is issued bythe flag administration.

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SECTION 2 STRUCTURAL FIRE PROTECTION REQUIREMENTSFOR YACHTS UNDER 500 GT CARRYING NOT MORE THAN 12PASSENGERS

1 Application

1.1 The requirements in this section apply to yachts of less than 500 GT carrying not more than 12 passengersassigned main class.

1.2 Where the government of the flag state has prescribed specific rules and regulations for fire safety measures,such rules and regulations may be considered as the basis for assignment of main class if providing a level ofsafety acceptable to the Society.

2 Procedural requirements

2.1 GeneralFor general requirements to documentation, including full definition of the info codes, see SHIP Pt.1 Ch.3Sec.2.For a full definition of the documentation types, see SHIP Pt.1 Ch.3 Sec.3.

2.2 Documentation shall be submitted as required by Table 1.

Table 1 Documentation requirements - design assessment of vessel

Object Documentationtype

Additional description Info

Insulationplan incl.insulationdetails

G060 - Structuralfire protectiondrawing

Drawing showing the arrangement of the structural fire protection andinsulation, including:

— typical insulation arrangements— details of aluminium and/or composite constructions— type, maker and approval number of applied insulation materials and

constructions.

AP

Escape wayplan

G120 - Escaperoute drawing

AP

G061 -Penetrationdrawing

Containing information to type, maker and approval number. APVentilationand airconditioningscheme

S012 - Ductingdiagram (DD)

AP

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S014 - Ductrouting sketch

AP

Fire door planincl. list of firedoors

G060 - Structuralfire protectiondrawings

Arrangement drawing showing the fire integrity and type of doors in firedivisions, including clear opening size, opening direction, information if self-closing is arranged as well as type, maker and approval number.

AP

Schedule ofapprovedfire safetyequipment,componentsand materials

M020 - Materialspecification, firerelated properties

Like e.g. such as a "MED-List" or "List of Approved Equipment - StructuralFire Protection".

FI

Fire controlplan

G040 - Firecontrol plan

AP

AP = For approval; FI = For information

3 Structural integrity

3.1 Machinery spaces, galleys and storerooms containing inflammable substances shall be surrounded bydivisions of steel or shall be protected by other equivalent methods.

3.2 Internal boundaries of control stations and of machinery spaces containing internal combustion machineryor other oil-burning, heating or pumping units shall be equal to an "A-60" standard. For yachts with servicearea notation R1 or R3 this may be reduced to "A-30" and for yachts with RE notation to "A-0". In case theadjacent spaces are of negligible fire risk, the fire integrity of the divisions needs not to exceed the "A-0"standard.

3.3 Escape routes shall be separated from adjacent spaces by at least class B divisions.

4 Fire protection materials and details of construction

4.1 In general insulating materials shall be non-combustible. Where combustible insulation material is used inaccessible spaces in which a fire might occur, it shall be covered with materials having at least approved low-flame spread characteristics.

4.2 Fire insulation need only be applied on the side that is exposed to the greatest risk of fire, e.g. inside theengine room or galley. A division between two such spaces shall however be insulated on both sides unless itis a steel division.

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4.3 In spaces where penetration of oil products is possible, the surface of insulation shall be impervious to oil oroil vapours.

4.4 Combustible material if used for partitions, ceilings or linings requires adequate alternative measures of fireprotection. Alternative measures may be for example the installation of a fixed fire detection and fire alarmsystem or of an automatic sprinkler, fire detection and fire alarm system.

4.5 Paints, varnishes and other finishes used on exposed interior surfaces shall be of an approved low flame-spread type and shall not be capable of producing excessive quantities of smoke and toxic products.

5 Ventilation

5.1 As far as practicable ventilation systems shall meet the requirements of Sec.3 [11]. As a minimum DNVGL-ST-0491 Yachts and boats up to 24 m shall be met.

6 Means of escape

6.1 As far as practicable the means of escape shall meet the requirements in Sec.3 [12]. As a minimum thestandard of the provisions in [6.2] to [6.4] shall be met.

6.2 Stairways and ladders shall be arranged to provide ready means of escape to the open deck and then to thesurvival craft from all accommodation, service and other spaces which may normally be occupied.

6.3 As far as practicable not less than two means of escape shall be provided. Dead-end situations exceeding7 m in length shall be avoided in any case. Accommodation spaces or groups of spaces shall have two meansof escape unless there is a means of escape that leads directly to the open deck.

6.4 Below the lowest open deck at least one means of escape shall be independent of watertight doors.

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SECTION 3 STRUCTURAL FIRE PROTECTION REQUIREMENTS FORYACHTS OF 500 GT AND OVER CARRYING NOT MORE THAN 12PASSENGERS

1 Application

1.1 The requirements in this section apply to yachts of more than 500 GT carrying not more than 12 passengersassigned main class.


1.3 In addition to the requirements of this section, the requirements in Sec.2 shall be applied. Where therequirements differ, the requirements in this section take precedence.





Object Documentation type Additional description Info

Fire division plan G060 - Structural fireprotection drawing

Drawing showing the arrangement of the structuralfire protection, including:

— designation and categorization of spaces— horizontal and vertical fire class divisions,

including A-0— main horizontal and vertical fire zones— partial bulkheads.

AP

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Insulation plan incl.insulation details

G060 - Structural fireprotection drawing

Drawing showing the arrangement of the structuralfire protection and insulation, including:

— typical insulation arrangements— details of aluminium and/or composite

constructions— information to type, maker and approval number

of applied insulation materials and constructions.

AP

Joiner plan G060 - Structural fireprotection drawing

Drawing showing installation details, including:

— extension of corridor bulkheads— details of fire insulation (e.g. window boxes,

sanitary units, etc.)— integration of fire detectors and sprinkler nozzles

in the ceiling— type, arrangement and fixation of bulkhead/

ceiling panels and linings.

This drawing may be combined with the insulationdetails.

AP

Fire load calculation M070 - List of combustiblematerials

Calculation of the calorific value and fire volume,including list, specification and approval informationof all materials.

This document is only required if no fixed-fireextinguishing system is fitted in all accommodationspaces, services spaces and control stations.

AP

Escape way plan G120 - Escape routedrawing

AP

Stair width and landingarea calculation, stairwayinclination, materialsfor stairway structures,handrails in stairways andcorridors

G100 - Escape andevacuation study

Handled like passenger vessels plus documentsshowing:

— stairs and ladders, both including inclination— materials for stairway structures— handrails in stairways and corridors.

AP

G061 - Penetration drawing Containing information to type, maker and approvalnumber.

AP

S012 - Ducting diagram(DD)

AP

Ventilation and airconditioning scheme

S014 - Duct routing sketch AP

Deck covering plan G060 - Structural fireprotection drawing

Arrangement drawing incl. details showing:

— construction of deck coverings (multi-layerdesign)

— floor coverings in corridors and stairwayenclosures

— information to type, maker and approval number.

AP

Fire door plan incl. list of firedoors

G060 - Structural fireprotection drawings

Arrangement drawing showing the fire integrityand type of doors in fire divisions, including clearopening size, opening direction, information if self-closing is arranged as well as type, maker andapproval number.

AP

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Schedule of approvedfire safety equipment,components and materials

M020 - Materialspecification, fire relatedproperties

like e.g. such as a "MED-List" or "List of ApprovedEquipment - Structural Fire Protection".

FI

Arrangement of firedetectors and manuallyoperated call points (withinaccommodation spaces,service spaces and controlstations only)

G090 - Area safety chart orfire protection data sheet

only for fire detectors and manually operated callpoints

AP

Fire control plan G040 - Fire control plan AP


3 Structural integrity

3.1 The hull, superstructures, structural bulkheads, decks and deckhouses shall be constructed of steel or otherequivalent material.Special fire protection precautions are required if parts or all of the aforementioned structural elements areconsisting of materials other than steel or other equivalent material.

3.2 Unless otherwise specified in [3.1], in cases where any part of the structure is of aluminium alloy, thefollowing shall apply:

— The insulation of aluminium alloy components of "A" or "B" class divisions, except structure which is non-load-bearing, shall be such that the temperature of the structural core does not rise more than 200°Cabove the ambient temperature at any time.

— Special attention shall be given to the insulation of aluminium alloy components of columns, stanchionsand other structural members required to support lifeboat and liferaft stowage, launching andembarkation areas, and A and B class divisions to ensure:

— that for such members supporting lifeboat and liferaft areas and "A" class divisions, the temperaturerise limitation specified in above shall apply at the end of one hour

— that for such members required to support B class divisions, the temperature rise limitation specified inabove shall apply at the end of half an hour.

3.3 Crowns and casings of machinery spaces of category A shall be of steel construction and shall be insulated asrequired by Table 2, as appropriate. For vessels under 1000 GT the steel construction is not required providedthe relevant divisions are of "A-60" standard and an approved method for boundary cooling is available thatoperates also under emergency power supply.

3.4 The floor plating of normal passageways in machinery spaces of category A shall be made of steel.

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3.5 Materials readily rendered ineffective by heat shall not be used for overboard scuppers, sanitary discharges,and other outlets which are close to the waterline and where the failure of the material in the event of firewould give rise to danger of flooding.

4 Main vertical zones and horizontal zones

4.1 The hull, superstructure and deckhouses in way of accommodation and service spaces shall be subdividedinto main vertical zones by "A" class divisions, the mean length and width of which on any deck does not ingeneral exceed 40 m. These divisions shall have insulation values in accordance with Table 2 and Table 3.

4.2 As far as practicable, the bulkheads forming the boundaries of the main vertical zones above the bulkheaddeck shall be in line with watertight subdivision bulkheads situated immediately below the bulkhead deck.The length and width of main vertical zones may be extended to a maximum of 48 m in order to bring theends of main vertical zones to coincide with watertight subdivision bulkheads or in order to accommodate alarge public space extending for the whole length of the main vertical zone provided that the total area of themain vertical zone is not greater than 1600 m2 on any deck. The length or width of a main vertical zone isthe maximum distance between the furthermost points of the bulkheads bounding it.

4.3 Such bulkheads shall extend from deck to deck and to the shell or other boundaries.

4.4 Where a main vertical zone is subdivided by horizontal "A" class divisions into horizontal zones for thepurpose of providing an appropriate barrier between a zone with sprinklers and a zone without sprinklers, thedivisions shall extend between adjacent main vertical zone bulkheads and to the shell or exterior boundariesof the ship and shall be insulated in accordance with the fire insulation and integrity values given in Table 3.

5 Fire integrity of bulkheads and decks

5.1 Yachts shall be subdivided into spaces by thermal and structural divisions having regard to the fire risk of thespace.

5.2 Bulkheads required to be "B" class divisions shall extend from deck to deck and to the shell or otherboundaries. However, where a continuous "B" class ceiling or lining is fitted on both sides of the bulkhead,the bulkhead may terminate at the continuous ceiling or lining.

5.3 Bulkheads not required to be "A" or "B" class divisions, shall be at least "C" class construction.

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5.4 In addition to complying with the specific provisions for the fire integrity of bulkheads and decks, theminimum fire integrity of bulkheads and decks shall be as described in Table 2 and Table 3.The classification of spaces, used in Table 2 and Table 3, is defined according to the following numberedcategories.[1] Control stationsSpaces containing emergency sources of power and lighting, wheelhouse and chartroom, spaces containingthe ship's radio equipment, fire control stations, control room for propulsion machinery when located outsidethe machinery space, spaces containing centralized fire alarm equipment[2] CorridorsCorridors and lobbies[3] Accommodation spacesSpaces used for public spaces, lavatories, cabins, offices, hospitals, cinemas, game and hobby rooms, barbershops, pantries containing no cooking appliances and similar spaces[4] StairwaysInterior stairway, lifts, totally enclosed emergency escape trunks, and escalators (other than those whollycontained within the machinery spaces) and enclosures thereto. In this connection, a stairway which isenclosed only at one level shall be regarded as part of the space from which it is not separated by a fire door[5] Service spaces (low risk)Lockers and store-rooms not having provisions for the storage of flammable liquids and having areas lessthan 4 m2 and drying rooms and laundries[6] Machinery spaces of category AMachinery spaces of category A are those spaces and trunks to such spaces which contain either:

— internal combustion machinery used for main propulsion— internal combustion machinery used for purposes other than main propulsion where such machinery has

in the aggregate a total power output of not less than 375 kW; or— any oil-fired boiler or oil fuel unit, or any oil-fired equipment other than boilers, such as inert gas

generators, incinerators, etc.

[7] Other machinery spacesMachinery spaces containing steam and internal combustion engines used for purposes other than mainpropulsion where such machinery has in the aggregate a total power output of less than 375 kW, generatorsand major electrical machinery, oil filling stations, refrigerating, stabilizing, ventilation and air conditioningmachinery, and similar spaces, and trunks to such spacesElectrical equipment rooms (auto-telephone exchange, air-conditioning duct spaces)[8] Service spaces (high risk)Galleys, pantries containing cooking appliances, saunas, paint lockers and store-rooms having areas of 4 m2

or more, spaces for the storage of flammable liquids, and workshops other than those forming part of themachinery spaces[9] Open decksOpen deck spaces and enclosed promenades having little or no firerisk. To be considered in this category,enclosed promenades shallhave no significant fire risk, meaning that furnishings shall berestricted to deckfurniture. In addition, such spaces shall be naturallyventilated by permanent openingsAir spaces (the space outside superstructures and deckhouses)[10] Special outfit spacesSpaces as per [10]

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Table 2 Bulkheads separating adjacent spaces

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Table 3 Decks separating adjacent spaces

5.5 Continuous "B" class ceilings or linings, in association with the relevant decks or bulkheads, may be acceptedas contributing, wholly or in part, to the required insulation and integrity of a division.

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5.6 External boundaries which are required to be of steel or other equivalent material may be pierced for thefitting of windows and sidescuttles. Similarly, in such boundaries which are not required to have "A" classintegrity, doors may be constructed of approved materials other than steel.

5.7 Saunas shall comply with the following:

— The perimeter of the sauna shall be of "A" class boundaries and may include changing rooms, showersand toilets. The sauna shall be insulated to "A-60" standard against other spaces except those inside ofthe perimeter and open deck spaces, sanitary spaces and machinery spaces having little or no fire risk.

— Bathrooms with direct access to saunas may be considered as part of them. In such cases, the doorbetween sauna and the bathroom need not comply with fire safety requirements.

— The traditional wooden lining on the bulkheads and ceiling are permitted in the sauna. The ceiling abovethe oven shall be lined with a non-combustible plate with an air gap of at least 30 mm. The distance fromthe hot surfaces to combustible materials shall be at least 500 mm or the combustible materials shall beprotected (e.g. non-combustible plate with an air gap of at least 30 mm).

— The traditional wooden benches are permitted to be used in the sauna.— The sauna door shall open outwards by pushing.— Electrically heated ovens shall be provided with a timer.

5.8 Stairways which penetrate only a single deck shall be protected, at a minimum, at one level by at least "B-0"class divisions and self-closing doors. Lifts which penetrate only a single deck shall be surrounded by "A-0"class divisions with steel doors at both levels. Stairways and lift trunks which penetrate more than a singledeck shall be surrounded by at least "A-0" class divisions and be protected by self-closing doors at all levels.

5.9 On yachts having accommodation for 12 persons or less, where stairways penetrate more than a single deckand where there are at least two escape routes direct to the open deck at every accommodation level, the"A-0" requirements of [5.8] may be reduced to "B-0".

6 Penetration in fire-resisting divisions and prevention of heattransmission

6.1 Where "A" class divisions are penetrated, such penetrations shall be of an approved type. In case ofventilation ducts [11.2] and [11.5] apply. However, pipe penetrations made of steel or equivalent materialhaving a thickness of 3 mm or greater and a length of not less than 900 mm (preferably 450 mm on eachside of the division), and no openings, is considered as an approved type. Such penetrations shall be suitablyinsulated by extension of the insulation at the same level as the division.

6.2 Where "B" class divisions are penetrated for the passage of electric cables, pipes, trunks, ducts, etc., orfor the fitting of ventilation terminals, lighting fixtures and similar devices, arrangements shall be made to

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ensure that the fire resistance is not impaired, subject to the provisions of [11.6]. Pipes other than steel orcopper that penetrate "B" class divisions shall be protected by either:

— an approved penetration device, suitable for the fire resistance of the division pierced and the type of pipeused; or

— a steel sleeve, having a thickness of not less than 1,8 mm and a length of not less than 900 mm forpipe diameters of 150 mm or more and not less than 600 mm for pipe diameters of less than 150 mm(preferably equally divided to each side of the division). The pipe shall be connected to the ends ofthe sleeve by flanges or couplings; or the clearance between the sleeve and the pipe shall not exceed2.5 mm; or any clearance between pipe and sleeve shall be made tight by means of non-combustible orother suitable material.

6.3 Uninsulated metallic pipes penetrating "A" or "B" class divisions shall be of materials having a meltingtemperature which exceeds 950°C for "A-0" and 850°C for "B-0" divisions.

6.4 With regard to the risk of heat transmission at intersections and terminal points of required thermal barriers,the insulation of a deck or bulkhead shall be carried past the penetration, intersection or terminal point for adistance of at least 450 mm in the case of steel and aluminium structures. If a space is divided with a deckor bulkhead of "A" class standard having insulation of different values, the insulation with the higher valueshall continue on the deck or bulkhead with the insulation of the lesser value for a distance of at least 450mm.

7 Doors in fire-resisting divisions

7.1 The fire resistance of doors shall be equivalent to that of the division in which they are fitted, this beingproved by using doors of an approved type. Doors and door frames in "A" class divisions shall be constructedof steel or other equivalent material. Doors in "B" class divisions shall be non-combustible. Doors fitted inboundary bulkheads of machinery spaces of category A shall be reasonable gas-tight and self-closing. Theuse of combustible materials in doors separating cabins from individual interior sanitary accommodation,such as showers, may be permitted.

7.2 Fire doors in main vertical zone bulkheads and stairway enclosures other than power-operated watertightdoors and those which are normally locked shall be self-closing.

7.3 Doors required to be self-closing shall not be fitted with hold-back hooks. However, hold-back arrangementsas well as power-operated drive facilities fitted with remote release devices of the fail-safe type may beutilized.

7.4 In corridor bulkheads ventilation openings may be permitted in and under doors of cabins and public spaces.Ventilation openings are also permitted in B class doors leading to lavatories, offices, pantries, lockersand store rooms. Except as permitted below, the openings shall be provided only in the lower half of the

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door. Where such an opening is under a door the total net area of any such opening or openings shallnot exceed 0.05 m2. Alternatively, a non-combustible air balance duct routed between the cabin and thecorridor, and located below the sanitary unit is permitted where the cross-sectional area of the duct does notexceed 0.05 m2. Ventilation openings, except those under the door, shall be fitted with a grille made of non-combustible material.

7.5 Sliding steel watertight doors need not be insulated.

8 Fire protection materials and details of construction

8.1 Insulating materials shall be non-combustible, except in baggage rooms and refrigerated compartments ofservice spaces. Vapour barriers and adhesives used in conjunction with insulation, as well as the insulationof pipe fittings for cold service systems, need not be of non-combustible materials, but they shall be keptto the minimum quantity practicable and their exposed surfaces shall have approved low flame-spreadcharacteristics.

8.2 In spaces where penetration of oil products is possible, the surface of insulation shall be impervious to oil oroil vapours.

8.3 In accommodation and service spaces and control stations all linings, ceilings, draught stops and theirassociated grounds shall be of non-combustible materials.

8.4 Non-combustible bulkheads, ceilings and linings fitted in accommodation and service spaces may be facedwith combustible materials, facings, mouldings, decorations and veneers in accordance with the provisionsof [8.5] to [8.8]. However, traditional wooden benches and wooden linings on bulkheads and ceilings arepermitted in saunas and such materials need not be subject to the calculations prescribed in [8.5] and [8.6].

8.5 Combustible materials used on the surfaces and linings specified in [8.4] shall have a calorific value notexceeding 45 MJ/m2 of the area for the thickness used. The requirements of this paragraph are not applicableto the surfaces of furniture fixed to linings or bulkheads.

8.6 Where combustible materials are used in accordance with [8.4], they shall comply with the followingrequirements:

— The total volume of combustible facings, mouldings, decorations and veneers in any accommodation andservice space not protected by an approved automatic sprinkler, fire detection and fire alarm system shallnot exceed a volume equivalent to 2.5 mm veneer on the combined area of the walls and ceiling linings.Furniture fixed to linings, bulkheads or decks need not be included in the calculation of the total volume ofcombustible materials.

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— In the case of yachts fitted with an approved automatic sprinkler, fire detection and fire alarm system, theabove volume may include some combustible material used for erection of "C" class divisions.

8.7 The following surfaces shall have approved low flame-spread characteristics:

— exposed surfaces in corridors and stairway enclosures and of ceilings in accommodation and servicespaces (except saunas) and control stations

— surfaces and grounds in concealed or inaccessible spaces in accommodation and service spaces andcontrol stations.

8.8 Paints, varnishes and other finishes used on exposed interior surfaces shall not be capable of producingexcessive quantities of smoke and toxic products, this being determined in accordance with approvedprocedures.

8.9 Primary deck coverings, if applied within accommodation and service spaces and control stations, shall be ofapproved material which will not give rise to smoke or toxic or explosive hazards at elevated temperatures,this being determined in accordance with approved procedures.

8.10 Primary deck coverings, if applied within accommodation and service spaces and control stations, shallbe of approved material which will not readily ignite, this being determined in accordance with approvedprocedures.

8.11 Air spaces enclosed behind ceilings, panelling or linings shall be divided by close-fitting draught stops spacednot more than 14 m apart. In the vertical direction, such enclosed air spaces, including those behind liningsof stairways, trunks, etc., shall be closed at each deck.

9 Fire detection and alarmA fixed fire detection and fire alarm system of an approved type shall be so installed and arranged as toprovide smoke detection in all corridors, stairways and escape routes within accommodation spaces, seeSHIP Pt.4 Ch.8.

10 Alternative approach to the structural fire protection ofaccommodation and service spaces with special outfit

10.1 In lieu of complying with the requirements of [5.3] and [8.3] to [8.7], the following regulations may apply torestricted areas of accommodation and service spaces with special outfit.

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10.2 There may be no restriction on the construction of bulkheads not required by this or other regulations tobe "A", "B" or "C" class divisions, except in individual cases where fire-rated bulkheads are required inaccordance with Table 2.

10.3 The boundary decks of special outfit spaces shall be of "A-30" standard, unless [5] requires a higherstandard. Enclosures of deck openings for stairways, lifts, trunks, etc. shall be protected to the samestandard.

10.4 Main vertical zone divisions shall be of "A-30" standard if special outfit spaces are adjacent, unless [5]requires a higher standard.

10.5 Corridors and stairway enclosures serving accommodation and service spaces shall not be part of the specialoutfit areas, unless there are means of escape from those spaces that lead directly to the open deck.

10.6 In addition to complying with the specific provisions for the fire integrity of bulkheads and decks, theminimum fire integrity of bulkheads and decks shall be as described in Table 2 and Table 3.

10.7 Areas with special outfit spaces shall be readily accessible for fire-fighting purposes.

10.8 An automatic sprinkler, fire detection and fire alarm system of an approved type shall be so installed andarranged as to protect all special outfit spaces, except spaces which afford no substantial fire risk such asvoid spaces, sanitary spaces, etc. In addition, an approved fixed fire detection and fire alarm system shall beso installed and arranged as to provide smoke detection in the same spaces.

10.9 Provided that the area of the special outfit space or spaces is bounded by a continuous "A" or "B" classdivision not exceeding 50 m2, in lieu of complying with the requirements of [10.8], a fixed fire detection andfire alarm system of an approved type shall be so installed and arranged as to detect the presence of fire inall special outfit spaces, providing smoke detection in such spaces, except spaces which afford no substantialfire risk such as void spaces, sanitary spaces, etc.

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11 Ventilation systems

11.1 Ventilation ducts, including single and double wall ducts, shall be of steel or equivalent material exceptflexible bellows of short length not exceeding 600 mm used for connecting fans to the ducting in air-conditioning rooms. Unless expressly provided otherwise in [11.6], any other material used in theconstruction of ducts, including insulation, shall also be non-combustible. However, short ducts, not generallyexceeding 2 m in length and with a free cross-sectional area not exceeding 0.02 m2, need not be steel orequivalent, subject to the following conditions:

— the ducts shall be made of heat resisting non-combustible material, which may be faced internally andexternally with membranes having low flame-spread characteristics and, in each case, a calorific value notexceeding 45 MJ/m2 of their surface area for the thickness used

— the ducts are only used at the end of the ventilation device— the ducts are not situated less than 600 mm, measured along the duct, from an opening in an "A" or "B"

class division including continuous "B" class ceiling.Guidance note:

The term free cross-sectional area means, even in the case of a pre-insulated duct, the area calculated on the basis of the innerdimensions of the duct itself and not the insulation.For the term calorific value refer to the recommendations published by the International Organization for Standardization, inparticular publication ISO 1716:2002 Reaction to the fire tests for building products - Determination of the heat of combustion.

---e-n-d---o-f---g-u-i-d-a-n-c-e---n-o-t-e---

11.2 The following arrangements shall be tested in accordance with approved methods (e.g. Fire Test ProceduresCode):

— fire dampers, including their relevant means of operation, however, the testing is not required for damperslocated at the lower end of the duct in exhaust ducts for galley ranges, which shall be of steel and capableof stopping the draught in the duct; and

— duct penetrations through "A" class divisions. However, the test is not required where steel sleeves aredirectly joined to ventilation ducts by means of riveted or screwed flanges or by welding.

11.3 Fire dampers shall be easily accessible. Where they are placed behind ceilings or linings, these ceilings orlinings shall be provided with an inspection door on which a plate reporting the identification number of thefire damper is provided.

11.4 Ventilation ducts shall be provided with hatches for inspection and cleaning. The hatches shall be locatednear the fire dampers.

11.5 The main inlets and outlets of ventilation systems shall be capable of being closed from outside the spacesbeing ventilated. The means of closing shall be easily accessible as well as prominently and permanentlymarked and shall indicate the operating position of the closing device

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11.6 Combustible gaskets in flanged ventilation duct connections are not permitted within 600 mm of openings in"A" or "B" class divisions and in ducts required to be of "A" class construction.

11.7 Ventilation openings or air balance ducts between two enclosed spaces shall not be provided except aspermitted by [7.4].

11.8 The ventilation systems for machinery spaces of category A, galleys and spaces containing vehicles or craftwith fuel in their tanks or lockers storing such fuel shall, in general, be separated from each other and fromthe ventilation systems serving other spaces. However, the galley ventilation systems on yachts of less than4000 gross tonnage need not be completely separated from other ventilation systems, but may be served byseparate ducts from a ventilation unit serving other spaces. In such a case, an automatic fire damper shall befitted in the galley ventilation duct near the ventilation unit.

11.9 Ducts provided for the ventilation of machinery spaces of category A, galleys or spaces containing vehiclesor craft with fuel in their tanks or lockers storing such fuel shall not pass through accommodation spaces,service spaces or control stations unless they comply with [11.11].

11.10 Ducts provided for the ventilation of accommodation spaces, service spaces or control stations shall not passthrough machinery spaces of category A, galleys or spaces containing vehicles or craft with fuel in their tanksor lockers storing such fuel unless they comply with [11.11].

11.11 As permitted by [11.9] and [11.10] ducts shall be either:

— constructed of steel having a thickness of at least 3 mm for ducts with a free cross sectional area of lessthan 0.075 m2, at least 4 mm for ducts with a free cross-sectional area of between 0.075 m2 and 0.45m2, and at least 5 mm for ducts with a free cross-sectional area of over 0.45 m2

— suitably supported and stiffened

— fitted with automatic fire dampers closeto the boundaries penetrated, and

— insulated to "A-60" class standard from the boundaries of the spaces they serve to a point at least 5 mbeyond each fire damper

or:

— constructed of steel in accordance with the first and second item of [11.11]; and— insulated to "A-60" class standard throughout the spaces they pass through, except for ducts that pass

through sanitary and similar spaces or tanks, voids and auxiliary spaces having little or no fire risk.

11.12 For the purposes of the fourth and sixth item of [11.11], ducts shall be insulated over their entire cross-sectional external surface. Ducts that are outside but adjacent to the specified space, and share one or more

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surfaces with it, shall be considered to pass through the specified space, and shall be insulated over thesurface they share with the space for a distance of 450 mm past the duct.

Guidance note:Sketches of such arrangements are contained in the Unified Interpretations of SOLAS chapter II-2 (MSC.1/Circ.1276).


11.13 Where it is necessary that a ventilation duct passes through a main vertical zone division, an automatic firedamper shall be fitted adjacent to the division. The damper shall also be capable of being manually closedfrom each side of the division. The control location shall be readily accessible and be clearly and prominentlymarked. The duct between the division and the damper shall be constructed of steel in accordance with thefirst and second item of [11.11] and insulated to at least the same fire integrity as the division penetrated.The damper shall be fitted on at least one side of the division with a visible indicator showing the operatingposition of the damper.

11.14 Ducts passing through "A" class divisions shall meet the following requirements:

— where a thin plated duct with a free cross-sectional area equal to, or less than, 0.02 m2 passes through"A" class divisions, the opening shall be fitted with a steel sheet sleeve having a thickness of at least 3mm and a length of at least 200 mm, divided preferably into 100 mm on each side of a bulkhead or, in thecase of a deck, wholly laid on the lower side of the decks penetrated

— where ventilation ducts with a free cross-sectional area exceeding 0.02 m2, but not more than 0.075m2, pass through "A" class divisions, the openings shall be lined with steel sheet sleeves. The ducts andsleeves shall have a thickness of at least 3 mm and a length of at least 900 mm. When passing throughbulkheads, this length shall be divided preferably into 450 mm on each side of the bulkhead. These ducts,or sleeves lining such ducts, shall be provided with fire insulation. The insulation shall have at least thesame fire integrity as the division through which the duct passes; and

— automatic fire dampers shall be fitted in all ducts with a free cross sectional area exceeding 0.075 m2

that pass through "A" class divisions. Each damper shall be fitted close to the division penetrated and theduct between the damper and the division penetrated shall be constructed of steel in accordance with thefifth and sixth item of [11.11]. The fire damper shall operate automatically, but shall also be capable ofbeing closed manually from both sides of the division. The damper shall be fitted with a visible indicatorwhich shows the operating position of the damper. Fire dampers are not required, however, where ductspass through spaces surrounded by "A" class divisions, without serving those spaces, provided thoseducts have the same fire integrity as the divisions which they penetrate. A duct of cross sectional areaexceeding 0.075 m2 shall not be divided into smaller ducts at the penetration of an "A" class division andthen recombined into the original duct once through the division to avoid installing the damper requiredby this provision.

11.15 Ventilation ducts with a free cross-sectional area exceeding 0.02 m2 passing through "B" class bulkheadsshall be lined with steel sheet sleeves of 900 mm in length, divided preferably into 450 mm on each side ofthe bulkheads unless the duct is of steel for this length.

11.16 All fire dampers shall be capable of manual operation. The dampers shall have a direct mechanical meansof release or, alternatively, be closed by electrical, hydraulic, or pneumatic operation. All dampers shall bemanually operable from both sides of the division. Automatic fire dampers, including those capable of remote

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operation, shall have a failsafe mechanism that will close the damper in a fire even upon loss of electricalpower or hydraulic or pneumatic pressure loss. Remotely operated fire dampers shall be capable of beingreopened manually at the damper.

11.17 In general, the ventilation fans shall be so arranged that the ducts reaching the various spaces remain withina main vertical zone.

11.18 A duct, irrespective of its cross-section, serving more than one 'tween-deck accommodation space, servicespace or control station, shall be fitted, near the penetration of each deck of such spaces, with an automaticsmoke damper that shall also be capable of being closed manually from the protected deck above thedamper. Where a fan serves more than one 'tween-deck space through separate ducts within a main verticalzone, each dedicated to a single 'tween-deck space, each duct shall be provided with a manually operatedsmoke damper fitted close to the fan.

11.19 Vertical ducts shall, if necessary, be insulated as required by Table 2 and Table 3. Ducts shall be insulated asrequired for decks between the space they serve and the space being considered, as applicable.

11.20 When passing through accommodation spaces or spaces containing combustible materials, the exhaust ductsfrom galley ranges shall be constructed in accordance with the first and second item of [11.11]. Each exhaustduct shall be fitted with:

— a grease trap readily removable for cleaning— an automatically and remotely operated fire damper located in the lower end of the duct at the junction

between the duct and the galley range hood and, in addition, a remotely operated fire damper in theupper end of the duct close to the outlet of the duct

— arrangements, operable from within the galley, for shutting off the exhaust fans— fixed means for extinguishing a fire within the duct.

Guidance note:For the fixed means for extinguishing a fire with the duct refer to the recommendations published by the International Organizationfor Standardization, in particular publication ISO 15371:2009 Ships and marine technology - Fire-extinguishing systems forprotection of galley cooking equipment.


11.21 Where a ventilation room serves only an adjacent machinery space of category A containing internalcombustion machinery and there is no fire division between the ventilation room and the machinery space,the means for closing the ventilation duct or ducts serving the machinery space shall be located outside ofthe ventilation room and machinery space.

11.22 Where a ventilation room serves a machinery space of category A containing internal combustion machineryas well as other spaces and is separated from the machinery space by a "A-0" class division, including

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penetrations, the means for closing the ventilation duct or ducts for the machinery space can be located inthe ventilation room.

11.23 Practicable measures shall be taken for control stations outside machinery spaces in order to ensure thatventilation, visibility and freedom from smoke are maintained so that, in the event of fire, the machinery andequipment contained therein may be supervised and continue to function effectively.Alternative and separatemeans of air supply shall be provided and air inlets of the two sources of supply shall be so disposed thatthe risk of both inlets drawing in smoke simultaneously is minimized. Such requirements need not apply tocontrol stations situated on, and opening on to, an open deck or where local closing arrangements would beequally effective.

11.24 Exhaust ducts from laundries and drying rooms shall be fitted with suitably located hatches for inspection andcleaning.

11.25 Power ventilation of accommodation spaces, service spaces, control stations and machinery spaces shall becapable of being stopped from an easily accessible position outside the space being served. This position shallnot be readily cut off in the event of a fire in the spaces served.

12 Means of escape

12.1 General requirements

12.1.1 Unless expressly provided otherwise in this regulation, at least two widely separated and readymeans of escape shall be provided from all spaces or group of spaces.

12.1.2 Lifts shall not be considered as forming one of the means of escape as required by this regulation.

12.2 Means of escape from control stations, accommodation and servicespaces

12.2.1 Stairways and ladders shall be so arranged as to provide ready means of escape to the lifeboat andliferaft embarkation deck from passenger and crew accommodation spaces and from spaces in which thecrew is normally employed, other than machinery spaces.

12.2.2 All stairways in accommodation and service spaces and control stations shall be of steel frameconstruction except where the Society sanctions the use of other equivalent material.

12.2.3 Doors in escape routes shall, in general, open in way of the direction of escape, except that:

— individual cabin doors may open into the cabins in order to avoid injury to persons in the corridor whenthe door is opened

— doors in vertical emergency escape trunks may open out of the trunk in order to permit the trunk to beused both for escape and for access.

12.2.4 At all levels of accommodation there shall be provided at least two widely separated means of escapefrom each restricted space or group of spaces.

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12.2.5 Below the lowest open deck the means of escape shall be stairways, ladders, or watertight doors. Atleast one of the means of escape, from each watertight compartment or similarly restricted space or group ofspaces shall be independent of watertight doors.

12.2.6 Above the lowest open deck the means of escape shall be corridors, stairways or doors to an opendeck or a combination thereof. There shall be at least two means of escape from each main vertical zone orsimilarly restricted space or group of spaces.

12.2.7 No dead-end corridors having a length of more than 7 m shall be accepted.

12.2.8 Stairways and corridors used as means of escape shall be not less than 700 mm in clear width andshall have a handrail on one side. Stairways and corridors with a clear width of 1800 mm and over shall havehandrails on both sides. "Clear width" is considered the distance between the handrail and the bulkhead onthe other side or between the handrails. The angle of inclination of stairways should be, in general 45°, butnot greater than 50°, in small spaces not more than 60°. Doorways which give access to a stairway shall beof the same size as the stairway.°. Doorways which give access to a stairway shall be of the same size as thestairway.

12.2.9 Exceptionally, the Society may dispense with one of the means of escape, for crew spaces that areentered only occasionally, if the required escape route is independent of watertight doors.

12.3 Means of escape from machinery spaces

12.3.1 Except as provided in [12.3.2], two means of escape shall be provided from each machinery space ofcategory A. In particular, one of the following provisions shall be complied with:

— Two sets of steel ladders as widely separated as possible leading to doors in the upper part of the spacesimilarly separated and from which access is provided to the open deck. One of these ladders shall belocated within a protected enclosure that satisfies the category (4) requirements of Table 2 and Table 3,from the lower part of the space it serves to a safe position outside the space. Self-closing fire doors ofthe same fire integrity standards shall be fitted in the enclosure. The ladder shall be fixed in such a waythat heat is not transferred into the enclosure through non-insulated fixing points. The enclosure shallhave minimum internal dimensions of at least 800 mm × 800 mm, and shall have emergency lightingprovisions; or

— one steel ladder leading to a door in the upper part of the space from which access is provided to theopen deck and, additionally, in the lower part of the space and in a position well separated from the ladderreferred to, a steel door capable of being operated from each side and which provides access to a safeescape route from the lower part of the space to the open deck.

12.3.2 For a yacht of less than 1000 gross tonnage, the Society may dispense with one of the means ofescape required under [12.3.1], due regard being paid to the dimension and disposition of the upper part ofthe space. In addition, the means of escape from machinery spaces of category A need not comply with therequirement for a protected enclosure listed in the first item of [12.3.1].In the steering gear space, a second means of escape shall be provided when the emergency steeringposition is located in that space unless there is direct access to the open deck.

12.3.3 From machinery spaces other than those of category A, two escape routes shall be provided exceptthat a single escape route may be accepted for spaces that are entered only occasionally, and for spaceswhere the maximum travel distance to the door is 5 m or less.

12.3.4 All inclined ladders/stairways fitted to comply with [12.3.1] with open treads in machinery spacesbeing part of or providing access to escape routes but not located within a protected enclosure shall be madeof steel. Such ladders/stairways shall be fitted with steel shields attached to their undersides, such as toprovide escaping personnel protection against heat and flame from beneath.

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12.3.5 Two means of escape shall be provided from the machinery control room located within a machineryspace of category A. At least one of these escape routes shall provide a continuous fire shelter to a safeposition outside the machinery space.

12.3.6 Two means of escape shall be provided from the main workshop within a machinery space of categoryA. At least one of these escape routes shall provide a continuous fire shelter to a safe position outside themachinery space.

12.3.7 The angle of inclination of stairways in machinery spaces should be not more than 60°.

13 Helicopter decks

13.1 Structural integrity

13.1.1 In general, the construction of the helidecks shall be of steel or other equivalent materials. If thehelideck forms the deckhead of a deckhouse or superstructure, it shall be insulated to "A-60" class standard.

13.1.2 If the Society permits aluminium or other low melting point metal construction that is not madeequivalent to steel, the following provisions shall be satisfied:

— If the platform is cantilevered over the side of the ship, after each fire on the ship or on the platform, theplatform shall undergo a structural analysis to determine its suitability for further use.

— If the platform is located above the ship's deckhouse or similar structure, the following conditions shall besatisfied:

— the deckhouse top and bulkheads under the platform shall have no openings— windows under the platform shall be provided with steel shutters— after each fire on the platform or in close proximity, the platform shall undergo a structural analysis to

determine its suitability for further use.

13.1.3 Drainage facilities in way of helidecks shall be constructed of steel and shall lead directly overboardindependent of any other system and shall be designed so that drainage does not fall onto any part of theship.

13.2 Means of escapeA helideck shall be provided with both a main and an emergency means of escape and access for firefightingand rescue personnel. These shall be located as far apart from each other as is practicable and preferably onopposite sides of the helideck.

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SECTION 4 STRUCTURAL FIRE PROTECTION REQUIREMENTS FORYACHTS CARRYING 13 TO 36 PASSENGERS

1 Application

1.1 The requirements in this section apply to yachts carrying 13 to 36 passengers assigned main class.


1.3 In general, the respective requirements of the Red Ensign Group – A Code of Practice for Yachts Carrying 13to 36 Passengers (The Passenger Yacht Code) as amended, which applies to pleasure yachts of any size, inprivate use or engaged in trade, which carry more than 12 but not more than 36 passengers and which donot carry cargo, shall be complied with.

1.4 For private yachts, the applicable requirements may be agreed on a case by case basis provided that the flagstate administration does not require compliance with the Red Ensign Group – A Code of Practice for YachtsCarrying 13 to 36 Passengers (The Passenger Yacht Code) as amended. As a minimum, the requirementsin Sec.2 and Sec.3 shall be met as applicable.




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Fire division plan G060 - Structural fireprotection drawing

Drawing showing the arrangement of the structuralfire protection, including:

— designation and categorization of spaces— horizontal and vertical fire class divisions,

including A-0— main horizontal and vertical fire zones— partial bulkheads.

AP

Insulation plan incl.insulation details

G060 - Structural fireprotection drawing

Drawing showing the arrangement of the structuralfire protection and insulation, including:

— typical insulation arrangements— details of aluminium and/ or composite

constructions— information to type, maker and approval number

of applied insulation materials and constructions.

AP

Joiner plan G060 - Structural fireprotection drawing

Drawing showing installation details, including:

— extension of corridor bulkheads— details of fire insulation (e.g. window boxes,

sanitary units, etc.)— integration of fire detectors and sprinkler nozzles

in the ceiling— type, arrangement and fixation of bulkhead/

ceiling panels and linings.

This drawing may be combined with the insulationdetails.

AP

Fire load calculation M070 - List of combustiblematerials

Calculation of the calorific value and fire volume,including list, specification and approval informationof all materials.

AP


Drawings showing:

— arrangement of low location lighting in means ofescape, including corridors, stairways and exits

— arrangement of escape route signs and fireequipment location markings

— illustrations and instructions in passenger cabins,at muster stations and other passenger spaces.

AP

Stair width and landingarea calculation, stairwayinclination, materialsfor stairway structures,handrails in stairways andcorridors

G100 - Escape andevacuation study

Handled like passenger vessels and documentsshowing:

— stairs and ladders, both including inclination— materials for stairway structures— handrails in stairways and corridors.

AP

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Drawings showing:

— arrangement of low location lighting in means ofescape, including corridors, stairways and exits

— arrangement of escape route signs and fireequipment location markings

— illustrations and instructions in passenger cabins,at muster stations and other passenger spaces.

AP

G061 - Penetration drawing Containing information to type, maker and approvalnumber.

AP

S012 - Ducting diagram(DD)

AP

Ventilation and airconditioning scheme

S014 - Duct routing sketch AP

Deck covering plan G060 - Structural fireprotection drawing

Arrangement drawing incl. details showing:

— construction of deck coverings (multi-layerdesign)

— floor coverings in corridors and stairwayenclosures

— information to type, maker and approval number.

AP

Fire door plan incl. list of firedoors


Arrangement drawing showing the fire integrityand type of doors in fire divisions, including clearopening size, opening direction, information if self-closing is arranged as well as type, maker andapproval number.

AP

Plan of fire-rated windowsincl. list of fire-ratedwindows


Arrangement drawing showing the fire integrity andtype of windows in fire divisions, including size aswell as type, maker and approval number.

Schedule of approvedfire safety equipment,components and materials

M020 - Materialspecification, fire relatedproperties

Like e.g. such as a "MED-List" or "List of ApprovedEquipment - Structural Fire Protection".

FI

Arrangement of firedetectors and manuallyoperated call points (withinaccommodation spaces,service spaces and controlstations only)

G090 - Area safety chart orfire protection data sheet

Only for fire detectors and manually operated callpoints.

AP

Fire control plan G040 - Fire control plan AP


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SECTION 5 FIRE PROTECTION MEASURES AND FIREEXTINGUISHING


1.1 General

1.1.1 For general requirements to documentation, including full definition of the info codes, see SHIP Pt.1Ch.3 Sec.2.For a full definition of the documentation types, see SHIP Pt.1 Ch.3 Sec.3.Documentation requirement info codes:AP = For approval; FI = For informationACO = As carried out; L = Local handling; R = On request; TA = Covered by type approval; VS = Vesselspecific

1.1.2 Documentation shall be submitted as specified in Table 1.



S010 - Piping diagram (PD) AP

S030 - Capacity analysis APFire water system

Z030 - Arrangement plan AP

Fixed fire-extinguishingsystems

G200 - Fixed fire extinguishing systemdocumentation

AP

2 Fire protection measures

2.1 General

2.1.1 To prevent a fire from starting as well as from spreading, preventive measures shall be taken in thearea where a fire hazard may exist.Possible sources of fire are:

— machinery— electrical installations and appliances— heating and cooking appliances, etc.

2.1.2 The requirements defined in the following shall be observed in addition to the other relevant parts ofthese rules.

2.1.3 Installation of the machinery and the electrical gear in accordance Ch.1 and Ch.8 already provides acertain basic level of required fire protection measures.

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2.2 Open flame appliances2.2.1 General

2.2.1.1 Galley stoves or cookers operating with liquid fuel shall be provided with savealls of non-combustiblematerials. Measures shall be taken to prevent any leaking fuel to spread through the yacht.

2.2.1.2 Stoves, cookers and heating appliances shall be so installed that undue heating of adjacent structureswill not occur.

2.2.1.3 For the operation of galley stoves and cookers using liquid fuels or gas, there shall be adequatelysized ventilation openings. If such openings are closable, a notice shall be fitted at the appliance:"Ventilation openings are to be kept open during the use of stove/cooker!"

2.2.2 Heaters burning liquid fuel

2.2.2.1 Only fuels with a flash point ≥ 55°C shall be used, unless specifically approved otherwise by theSociety.

2.2.2.2 Only heaters with closed combustion chamber and air supply and exhaust gas lines close to theinterior of the yacht are permitted.

2.2.2.3 Heaters which do not fully meet the requirements regarding safety time margin of a standardrecognized by the Society may be approved, if safety of operation is proved in some other way, e.g. byexplosion-proof design of the combustion chamber and the exhaust gas ducts.

2.2.3 Liquefied petroleum gas systems

2.2.3.1 Cooking and heating appliances using liquefied petroleum gas (e.g. propane, butane) shall complywith the following:

— the systems shall be manufactured and installed in accordance with ISO 10239 as amended.

2.2.4 Materials and surfaces in vicinity of open flame cooking appliances

2.2.4.1 Materials and surfaces of components in the vicinity of an open flame cooking appliance shall meetthe requirements shown in Figure 1. On the right side the requirements for liquid fuels are defined, on theleft side the requirements for gaseous fuels.

Area I: Non-combustible material to be provided

Area II: Approved surface material with low flame spread to be provided

Units: [mm]

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Figure 1 Materials and surfaces of components in the vicinity of an open flame cooking appliance

2.2.4.2 Not readily ignitable materials shall be used for textile draperies.

2.3 Shielding of fuel pipes

2.3.1 Regardless of the intended use and location of any internal combustion engine, all internal fuelinjection lines (high pressure lines between injection pumps and injection valves) shall be shielded in such away that any leaking fuel is:

— safely collected— drained away unpressurised— effectively monitored.

3 Fire extinguishing arrangements

3.1 General scope of fire extinguishing arrangements

3.1.1 Any yacht shall be equipped with a general water fire extinguishing system and with portable andmobile extinguishers.

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3.2 Extinguishing systems3.2.1 Selection of systems

3.2.1.1 In addition, depending on their nature, size and the propulsion power installed, spaces subject to afire hazard shall be provided with fire extinguishing systems according to Table 2.

3.2.1.2 Unless specified otherwise, these systems are normally to be located outside the spaces and areas tobe protected and shall be capable of being actuated from a readily accessible location not likely to be cut offin the event of a fire in the protected space or area.

3.2.2 General water fire extinguishing systemsGuidance note:Use of water fire extinguishers may be prohibited by certain flag administrations.


3.2.2.1 Minimum capacity and number of fire pumpsThe minimum capacity and the number of fire pumps shall be as specified in Table 2.

3.2.2.2 Emergency fire pumpsOn yachts of 500 GT and over an emergency fire pump shall be provided if a fire in any one compartment canput all the fire pumps out of action.

3.2.2.3 Water from two sea chestsFor yachts it is sufficient that provision is made for supplying water for fire pumps from one sea chest only.

3.2.2.4 Remote starting arrangement for fire pumpsOn yachts of 500 GT and over at least one fire pump shall be provided with remote starting arrangementsfrom the bridge. The associated shut-off valves from the sea water inlet to the fire main shall be capable ofbeing controlled from the bridge. Alternatively locally operated valves may be used; these shall be kept openpermanently and provided with appropriate signs, e.g.:"Valve always to be kept open!"

Table 2 Fixed fire extinguishing systems

Spaces and areas to be protected Motor yachts Sailing yachts

Machinery spaces containing internalcombustion engines1 or oil fired boilers CO2 system2

Paint lockers and flammable liquidlockers CO2 dry powder extinguishing or pressure water spraying system

Helicopter landing deck Low expansion foam --

1) installed aggregate power 2) alternative an approved gas fire extinguishing system other than CO2 or a water spraying system according to MSC/

Circ.1165 will be accepted

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Table 3 Minimum number and capacity of fire pumps

Number/capacity of fire pumps Yachts under 500 GT Yachts of 500 GT and over

Number of power driven pumps 2 2

Minimum capacity Q of one pump20 m3/h

but not less than 25 m3/h

1) dH [mm] = theoretical diameter of the bilge main according to Ch.6 Sec.2 [1.1.1]

3.2.2.5 Conditions for emergency fire pumpsThe capacity of an emergency fire pump shall not be less than 15 m3/h.The emergency fire pumps shall fulfil the following conditions:

— installation outside of the space where the main fire pumps are located— energy supply independent of the space containing the main fire pumps— self-priming type.

3.2.2.6 Arrangement of fire mainsFor yachts of 500 GT and over SHIP Pt.4 Ch.11 to be applied. However, for the shut-off valves at branchpipes for hawspipe flushing local operation will be accepted.

3.2.2.7 Pressure at nozzlesFor yachts under 500 GT the system shall be designed for delivering at least one effective jet of water (lengthof throw approx. 10 m) from any hydrant.

3.2.2.8 Position of hydrantsOn yachts under 500 GT hydrants shall be so positioned that any part of the yacht normally accessible can bereached with water from at least one nozzle with not more than 1 standard hose length (for yachts under 500GT standard hose length on deck: 15 m, in machinery spaces: 10 m; for yachts of 500 GT and over standardhose length on deck: 20 m, in machinery spaces: 15 m).

Guidance note:For yachts under 500 GT standard hose length on deck: 15 m, in machinery spaces: 10 m; for yachts of 500 GT and over standardhose length on deck: 20 m, in machinery spaces: 15 m.


3.2.2.9 Hydrants in machinery spacesFor yachts under 500 GT hydrants in machinery spaces need not be provided.

3.2.2.10 Number of hoses and nozzlesFor yachts under 500 GT at least 2 hoses and nozzles and for yachts of 500 GT and over 5 hoses and nozzlesshall be provided.

3.2.2.11 Nozzle sizesThe standard nozzle sizes shall be:

— 9 mm or as near thereto as possible for yachts under 500 GT— 12 mm or as near thereto as possible for yachts of 500 GT and over.

3.2.3 High-pressure CO2 fire extinguishing systems/rooms for CO2 cylinders

3.2.3.1 Accessible CO2 rooms:All requirements as defined in SHIP Pt.4 Ch.11.

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3.2.3.2 Non accessible CO2 rooms:Such rooms are only suitable for a limited number of cylinders, the arrangement of the cylinders shall besuitable for efficient operation. Mechanical ventilation is not required.

3.2.4 Automatic pressure water spraying systems (sprinkler systems)The system shall meet SHIP Pt.4 Ch.11. However, the capacity of the system need not be higher than thatrequired for the total area to be protected.

3.3 Portable and mobile fire extinguishers3.3.1 General

3.3.1.1 CO2 fire extinguishers shall not be located in accommodation areas and water fire extinguishers notin machinery spaces.

3.3.1.2 The charge in portable dry powder and gas extinguishers shall be at least 5 kg and the content offoam and water extinguishers shall be not less than 9 l.

3.3.1.3 A portable foam applicator unit comprises two portable tanks, each containing 20 l of foaming agent,an air-foam jet pipe and ejector unit. The nozzle shall be capable of producing at least 1.5 m3/min of foam.

3.3.2 AccommodationIn accommodation decks of yachts portable fire extinguishers shall be arranged not more than 20 m apart ata readily accessible location.At least one portable fire extinguisher shall be provided on each deck and in each main vertical zone, but thetotal number shall not be less than:

— 3 for yachts under 500 GT, or— 5 for yachts of 500 GT and over.

3.3.3 Machinery spaces

3.3.3.1 For yachts under 500 GT portable dry powder fire extinguishers shall be provided as follows:

— up to 100 kW installed power:a minimum weight of 6 kg extinguishing agent

— for each further 100 kW or part thereof:2 kg extinguishing agent in addition.

3.3.3.2 For yachts of 500 GT and over the following shall be provided:

— portable dry powder fire extinguishers so located that from any point in the space an extinguisher can bereached within 10 m walking distance

— mobile fire extinguishers of 50 kg dry powder or 45 l foam which shall be so located that any part of thefuel and lubricating oil pressure systems, gearing and other fire hazards can be reached.

3.3.4 Other spaces and life boatsPaint lockers, flammable liquid lockers, radio rooms (if any), galleys and motor life boats shall be equippedeach with at least one portable fire extinguisher. In motor life boats portable dry powder extinguishers of 2kg will be accepted.

3.3.5 Special arrangements for spaces for the carriage of automobiles and other craftFor these spaces the following items shall be provided:

— a pressure water spraying system with a capacity of 5 litres per square meter and minute

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— at least 2 dry powder extinguishers of 6 kg each, one extinguisher shall be located at each entrance to thespace

— an independent forced ventilation for at least 10 air changes per hour— electrical equipment with grade of protection IP 55 at least and maximum surface temperature 200°C.

All installations less than 450 mm above a deck shall be approved for use in an explosive petrol/airatmosphere.

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CHANGES – HISTORIC

December 2015 editionThis is a new document.The rules enter into force 1 July 2016.

DNV GLDriven by our purpose of safeguarding life, property and the environment, DNV GL enablesorganizations to advance the safety and sustainability of their business. We provide classification andtechnical assurance along with software and independent expert advisory services to the maritime,oil and gas, and energy industries. We also provide certification services to customers across a widerange of industries. Operating in more than 100 countries, our 16 000 professionals are dedicated tohelping our customers make the world safer, smarter and greener.

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DNVGL-RU-YACHT-Pt4Ch11 Fire safety - Rules and … · P a r t 4 C h a p t e r 1 1 C h a n g e s-c u r r e n t Rules for classification: Yachts — DNVGL-RU-YACHT-Pt4Ch11. Edition

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