DNV HSLC rules Pt.4 Ch.10 - Fire Safety

RULES FORCLASSIFICATION OF

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Veritasveien 1, N-1322 Høvik, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

HIGH SPEED, LIGHT CRAFT ANDNAVAL SURFACE CRAFT

MACHINERY AND SYSTEMSEQUIPMENT AND OPERATION

PART 4 CHAPTER 10

FIRE SAFETYJANUARY 2002

CONTENTS PAGE

Sec. 1 General Requirements ................................................................................................................ 5Sec. 2 Classification of Space Use and Structural Fire Protection........................................................ 7Sec. 3 Material Requirements and Arrangement ................................................................................ 11Sec. 4 Ventilation ................................................................................................................................ 13Sec. 5 Fire Detection Systems............................................................................................................. 14Sec. 6 Fire Extinguishing Systems...................................................................................................... 17Sec. 7 Fire Pumps, Fire Mains, Hydrants and Hoses .......................................................................... 20Sec. 8 Miscellaneous ........................................................................................................................... 21

CHANGES IN THE RULES

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General

The present edition of this rule chapter includes additions and amend-ments decided by the Board as of December 2001, and supersedes theJanuary 2001 edition of the same chapter.

The rule changes come into force 1 July 2002.

This chapter is valid until superseded by a revised chapter. Supple-ments will not be issued except for an updated list of minor amend-ments and corrections presented in Pt.0 Ch.1 Sec.3. Pt.0 Ch.1 isnormally revised in January and July each year.

Revised chapters will be forwarded to all subscribers to the rules.Buyers of reprints are advised to check the updated list of rule chap-ters printed in Pt.0 Ch.1 Sec.1 to ensure that the chapter is current.

Main changes

• General

— This chapter has been amended in accordance with the 2000 HSCCode.

— Reference is now given to the “Fire Test Procedures Code” forstandard fire tests and procedures.

— Guidance notes referring to IMO recommendations for fire testprocedures and standards have been deleted.

— Where, in the previous HSC Code text “Accommodation spaces”was mentioned, this has now been deleted and replaced with“public spaces, crew accommodation and corridors”.

• Sec.1 General Requirements

— Sub-sections C300 and C400 have been deleted.

• Sec.3 Material Requirements and Arrangement

— The subject matter in items A101, A103.5, A104.1, A105, A106,B101, B103 and C102 have been amended and expanded in ac-cordance with the 2000 HSC Code.

• Sec.4 Ventilation

— The rules have been amended and expanded, particularly in re-gard to items A103, A104 and A106 in accordance with the 2000HSC Code.

• Sec.5 Fire Detection Systems

— In item A101 the 2000 HSC Code text has been amended and ex-panded.

— Previous item A201 and the Guidance note have been deleted anditems A202, A203 and A204 have been renumbered: A201,A202 and A203, respectively.

— Item A103 (includes a new Guidance note) and renumbereditems 201.4 and 201.8 have been amended and expanded in ac-cordance with the 2000 HSC Code.

— A new sub-item 15.4 (HSC Code 7.7.1.1), concerning the initia-tion of fire alarms, has been added to the renumbered item A201.

— Previous sub item 203.2 has been deleted and the remaining subitems renumbered accordingly.

— Previous sub item 203.3 (now 202.2) has been rewritten to in-clude stairways, corridors and escape routes.

• Sec.6 Fire Extinguishing Systems

— Items A101 and A201 have been amended and expanded.— Additional text has been added to renumbered items A201.7 con-

cerning the operation of alarms, A201.11 concerning pressurecontainers and A201.15 concerning the release of fire extinguish-ing medium.

— Item A202 has been moved and renumbered as B103. The text re-mains unchanged.

— A new sub-section “C. Deep-fat cooking equipment” from the2000 HSC Code has been added.

• Sec.7 Fire Pumps, Fire Mains, Hydrants and Hoses

— Additional text has been added to item A101.3 concerning the ac-cessibility of valve spindles and valve marking in accordancewith the 2000 HSC Code.

• Sec.8 Miscellaneous

— Items B103.1, .2 and .3 have been amended and expanded in ac-cordance with the 2000 HSC Code.

— Item B103.4 is new text concerning the control of doors. The re-maining sub items have been renumbered accordingly.

— Items B103.9 and 10 are new text concerning the availability ofcomponents for maintenance and the control of power operateddoors, respectively.

— Item B105 is new 2000 HSC Code text concerning doors insmoke tight divisions.

Corrections and Clarifications

In addition to the above stated rule amendments, a number of detect-ed errors, corrections and clarifications have been made to the exist-ing rule text.

Rules for High Speed, Light Craft and Naval Surface Craft, January 2002Pt.4 Ch.10 Contents –

DET NORSKE VERITAS

CONTENTS

SEC. 1 GENERAL REQUIREMENTS .......................... 5

A. Classification..........................................................................5A 100 General ..............................................................................5A 200 Application........................................................................5

B. General Requirements in the International Code of Safetyfor High-Speed Craft ............................................................5

B 100 Basic principles .................................................................5B 200 Conditions .........................................................................5

C. Definitions ..............................................................................5C 100 Fire-resisting divisions......................................................5C 200 Other definitions ...............................................................5

D. Documentation ......................................................................6D 100 Plans and particulars .........................................................6

SEC. 2 CLASSIFICATION OF SPACE USE ANDSTRUCTURAL FIRE PROTECTION .............. 7

A. Classification of Space Use ...................................................7A 100 Use Classification of fire hazard areas..............................7A 200 Tables for structural fire protection times.........................7

B. Structural Fire Protection ....................................................9B 100 Main structure ...................................................................9B 200 Fire-resisting divisions....................................................10

SEC. 3 MATERIAL REQUIREMENTS ANDARRANGEMENT .............................................. 11

A. Material Requirements.......................................................11A 100 Restricted use of combustible materials..........................11A 200 Arrangement and materials .............................................11

B. Arrangement of Smoke Divisions and Draught Stops.....11B 100 Arrangement....................................................................11

C. Fuel and Other Flammable Fluid Tanks and Systems ....12C 100 Tanks and piping systems ...............................................12

SEC. 4 VENTILATION ................................................. 13

A. Ventilation........................................................................... 13A 100 Ventilation control and fire or smoke dampers...............13

SEC. 5 FIRE DETECTION SYSTEMS ....................... 14

A. Fire Detection and Alarm Systems ................................... 14A 100 Areas to be protected ......................................................14A 200 Requirements for system.................................................14A 300 Fire detection for periodically unattended machinery

spaces ..............................................................................15

SEC. 6 FIRE EXTINGUISHING SYSTEMS .............. 17

A. Fixed Fire Extinguishing Systems .................................... 17A 100 Major fire hazard areas ...................................................17A 200 General requirements for fixed gas fire extinguishing

systems............................................................................17A 300 Carbon dioxide systems ..................................................18

B. Portable Fire Extinguishers .............................................. 19B 100 Location of fire extinguishers .........................................19

C. Deep-fat cooking equipment.............................................. 19C 100 Protection of deep-fat cooking equipment......................19

SEC. 7 FIRE PUMPS, FIRE MAINS, HYDRANTS ANDHOSES................................................................. 20

A. Fire Main System ............................................................... 20A 100 General requirements ......................................................20

SEC. 8 MISCELLANEOUS .......................................... 21

A. Fire Control Plans .............................................................. 21A 100 Requirements ..................................................................21

B. Openings in Fire-resisting Divisions................................. 21B 100 Requirements for doors and hatches ...............................21

C. Firefighter’s Outfits ........................................................... 22C 100 Number and location.......................................................22C 200 Personal equipment and breathing apparatus..................22

Rules for High Speed, Light Craft and Naval Surface Craft, January 2002Pt.4 Ch.10 Contents –

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Rules for High Speed, Light Craft and Naval Surface Craft, January 2002Pt.4 Ch.10 Sec.1 –

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SECTION 1GENERAL REQUIREMENTS

A. Classification

A 100 General

101 Text quoted from the 2000 International Code of Safetyfor High-Speed Craft (2000 HSC Code) is printed in italics.

102 Cross references to the HSC Code are given in Pt.0 Ch.3Sec.2.

103 IMO MSC/Circ.911, ”Interpretation of fire protectionrelated provisions of the HSC Code” is to be regarded as partof the rules, although the entire text of IMO MSC/Circ.911,has not been included in the rules. Text quoted from IMOMSC/Circ.911 is printed in italics.

A 200 Application

201 The requirements in this chapter apply to High Speedand Light Craft intended for the transport of passengers or car-go.

202 For passenger craft, car ferry and cargo vessels, addi-tional fire safety requirements are included in Pt.5 Ch.1 Sec.4,Pt.5 Ch.2 Sec.4 and Pt.5 Ch.3 Sec.4, respectively.

203 For the application of these rules, wherever the term Ad-ministration is quoted, this is to be read as Society.

B. General Requirements in the InternationalCode of Safety for High-Speed Craft

B 100 Basic principles

101 The following basic principles underlay the provisions inthis chapter and are embodied therein as appropriate, havingregard to the category of craft and the potential fire hazard in-volved:

.1 maintenance of the main functions and safety systemsof the craft, including propulsion and control, fire detec-tion, alarms and extinguishing capability of unaffectedspaces, after fire in any one compartment on board;

.2 division of the public spaces for category B craft, in sucha way that the occupants of any compartment can es-cape to an alternative safe area or compartment in caseof fire;

.3 subdivision of the craft by fire-resisting boundaries;

.4 restricted use of combustible materials and materialsgenerating smoke and toxic gases in a fire;

.5 detection, containment and extinction of any fire in thespace of origin;

.6 protection of means of escape and access for fire fight-ing; and

.7 immediate availability of fire-extinguishing appliances.

(HSC Code 7.1.1)

B 200 Conditions

201 The requirements in this chapter are based on the follow-ing conditions:

.1 Where a fire is detected, the crew immediately puts intoaction the fire-fighting procedures, informs the base portof the accident and prepares for the escape of passen-gers to alternative safe area or compartment, or, if nec-essary, for the evacuation of passengers.

.2 The use of fuel with a flashpoint below 43°C is not rec-ommended. However, fuel with a lower flashpoint, butnot lower than 35°C, may be used in gas turbines onlysubject to compliance with the provisions specified in7.5.1 to 7.5.2 (Sec.3 C100) and 7.5.3 to 7.5.6.

.3 The repair and maintenance of the craft is carried out inaccordance with the requirements given in chapters 18(not included in the rules) and 19 (Pt.0 Ch.4 Sec.5) ofthis Code.

.4 Enclosed spaces having reduced lighting, such as cine-mas, discothèques, and similar spaces are not permit-ted.

.5 Passenger access to special category spaces and openro-ro spaces is prohibited during the voyage exceptwhen accompanied by a crew member responsible forfire safety. Only authorised crew members shall be per-mitted to enter cargo spaces at sea.

(HSC Code 7.1.2)

C. Definitions

C 100 Fire-resisting divisions

101 "Fire-resisting divisions" are those divisions formed bybulkheads and decks which comply with the following:

.1 They shall be constructed of non-combustible or fire-re-stricting materials which by insulation or inherent fire-re-sisting properties satisfy the requirements of 7.2.1.2(101.2) to 7.2.1.6 (101.6).

.2 They shall be suitably stiffened.

.3 They shall be so constructed as to be capable of pre-venting the passage of smoke and flame up to the endof the appropriate fire protection time.

.4 Where required, they shall maintain load-carrying capa-bilities up to the end of the appropriate fire protectiontime.

.5 They shall have thermal properties such that the aver-age temperature on the unexposed side will not risemore than 140°C above the original temperature, norwill the temperature, at any one point, including anyjoint, rise more than 180°C above the original tempera-ture during the appropriate fire protection time.

.6 A test of a prototype bulkhead or deck in accordancewith the Fire Test Procedures Code shall be required toensure that it meets the above requirements.

(HSC Code 7.2.1)

C 200 Other definitions

201 "Fire-restricting materials" are those materials whichhave properties complying with the Fire Test Procedures Code.

Guidance note:See res. MSC.101(73) “Amendments to the International Codefor Application of Fire Test Procedures (FTP Code)”.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

(HSC Code 7.2.2)

202 "Non-combustible material" is a material which neitherburns nor gives off flammable vapours in sufficient quantity forself-ignition when heated to approximately 750°C, this beingdetermined in accordance with the Fire Test Procedures Code.

(HSC Code 7.2.3)


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203 "A standard fire test" is one in which specimens of the rel-evant bulkheads, decks or other constructions are exposed in atest furnace by a specified test method in accordance with theFire Test Procedures Code.

(HSC Code 7.2.4)

204 Where the words "steel or other equivalent material" oc-cur, "equivalent material" means any non-combustible materi-al which, by itself or due to insulation provided, has structuraland integrity properties equivalent to steel at the end of the ap-plicable exposure to the standard fire test (e.g., aluminium al-loy with appropriate insulation).

(HSC Code 7.2.5)

205 "Low flame-spread" means that the surface thus de-scribed will adequately restrict the spread of flame, this beingdetermined in accordance with the Fire Test Procedures Code.

(HSC Code 7.2.6)

206 “Smoke-tight" or "capable of preventing the passage ofsmoke" means that a division made of non-combustible or fire-restricting materials is capable of preventing the passage ofsmoke.

(HSC Code 7.2.7)

207 See also fire technical definitions relevant for this chap-ter included in Pt.0 Ch.3 Sec.1 C300.

D. Documentation

D 100 Plans and particulars101 The following plans and particulars are to be submittedfor approval:

— fire control plan (see Sec.8 A101)— arrangement plan showing fire classification of spaces and

location of fire-resisting divisions— detailed information on fire insulation systems, including

test reports or other documentation of fire resisting prop-erties for the systems. Detailed information regarding pen-

etration systems used in fire-resisting divisions, andprincipal fastening arrangement for doors, hatches, firedampers etc. which are fitted in fire-resisting divisions

— plan showing location, extent and type of materials used asdeck coverings, linings, surface materials, furniture etc.Booklet containing test reports or other documentation offire properties for same materials

— plans showing arrangement of ventilation systems andprotection of penetrations in fire-resisting divisions. Oper-ation of fire dampers and test reports or relevant approvals

— for fixed fire detection and alarm system: Specificationand location of detectors, alarm devices and call points,and cable routing layout drawing

— for television surveillance system: Location of TV camer-as and cable routing layout drawing

— plans and particulars of fire pumps and fire main, includ-ing calculation of required capacity in accordance withSec.7 A101.1

— plans and particulars of the fixed fire-extinguishing sys-tems in engine rooms and other areas of major fire hazard.

102 Additional documentation is to be submitted for craftwith the class notation Passenger and Car Ferry in accord-ance with requirements in the respective fire safety sections forthese types of vessels.

103 Fire testing is to be carried out by recognised independ-ent laboratories. The fire test procedures referred to in connec-tion with the respective requirements in this chapter are to beapplied. Other recognised test procedures may be acceptedprovided they are considered equivalent.

104 Fire fighting equipment required to be of an approvedtype, such as hoses, extinguishers, gas cylinders, emergencypumps, breathing apparatuses etc., are to be approved by theSociety or by a recognised SOLAS contracting governmentadministration. Documentation verifying approval in such cas-es to be submitted.

105 For instrumentation and automation, including compu-ter based control and monitoring, see Ch.9 Sec.1.


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SECTION 2CLASSIFICATION OF SPACE USE AND STRUCTURAL FIRE PROTECTION

A. Classification of Space Use

A 100 Use Classification of fire hazard areas

101 For the purposes of classification of space use in accord-ance with fire hazard risks, the following grouping shall apply:

.1 "Areas of major fire hazard" referred to in tables 7.4-1(A1) and 7.4-2 (A2) by A, include the following spaces:

— machinery spaces— ro-ro spaces— spaces containing dangerous goods— special category spaces— store-rooms containing flammable liquids— galleys— sale shops having a deck area of 50 m2 or greater

and containing flammable liquids for sale— trunks in direct communication with the above

spaces.

.2 "Areas of moderate fire hazard" referred to in tables7.4-1 (A1) and 7.4-2 (A2) by B, include the followingspaces:

— auxiliary machinery spaces, as defined in 1.4.4(Pt.0 Ch.3 Sec.1 C300)

— bond stores containing packaged beverages withalcohol content not exceeding 24% by volume

— crew accommodation containing sleeping berths— service spaces— sales shops having a deck area of less than 50 m2

containing a limited amount of flammable liquid forsale and where no dedicated store is provided sep-arately

— sales shops having a deck area of 50 m2 or greaternot containing flammable liquids

— trunks in direct communication with the abovespace.

Guidance note:Classification of sales areas is described in 102.


.3 "Areas of minor fire hazard" referred to in tables 7.4-1(A1) and 7.4-2 (A2) by C, include the following spaces:

— auxiliary machinery spaces, as defined in 1.4.5(Pt.0 Ch.3 Sec.1 C300)

— cargo spaces— fuel tank compartments— public spaces— tanks, voids and areas of little or no fire risk— refreshment kiosks— sales shops other than those specified in 7.3.1.1

and 7.3.1.2 (101.1 and 101.2)— corridors in passenger areas and stairway enclo-

sures

— crew accommodation other than that mentioned in7.3.1.2 (101.2)

— trunks in direct communication with the abovespaces.

.4 "Control stations" referred to in tables 7.4-1 (A1) and7.4-2 (A2) by D, as defined in 1.4.15. (Pt.0 Ch.3 Sec.1C300)

.5 "Evacuation stations and external escape routes" re-ferred to in tables 7.4-1 (A1) and 7.4-2 (A2) by E, in-clude the following areas:

— external stairs and open decks used for escaperoutes

— assembly stations, internal and external— open deck spaces and enclosed promenades

forming lifeboat and liferaft embarkation and lower-ing stations

— the craft's side to the waterline in the lightest sea-going condition, superstructure and deckhousesides situated below and adjacent to the liferaft'sand evacuation slide's embarkation areas.

.6 "Open spaces" referred to in tables 7.4-1 (A1) and 7.4-2 (A2) by F, include the following areas:

— open spaces locations other than evacuation sta-tions and external escape routes and control sta-tions.

(HSC Code 7.3.1 )

102 In approving structural fire protection details, the Admin-istration shall have regard to the risk of heat transmission at in-tersections and terminal points of required thermal barriers.

(2000 HSC Code 7.3.2)

103 If a space is divided by partial bulkheads into two (ormore) smaller areas such that they form enclosed spaces, thenthe enclosed spaces shall be surrounded by bulkheads anddecks in accordance with tables 7.4-1 (A1) and 7.4-2 (A2), asapplicable. However, if the separating bulkheads of such spac-es are at least 30% open, then the spaces may be consideredas the same space.

(IMO MSC/Circ.911, 7.3.1)

A 200 Tables for structural fire protection times201 For crew accommodation areas of less than 50 m2,which do not contain sleeping berths or any equipment of firerisk, installation of fixed sprinkler system and automatic firedetection is considered to provide equivalent safety level to en-closure by 30 minutes fire-resisting divisions.

202 Cabinets having a deck area of less than 2 m2 may beaccepted as part of the space they serve provided they haveopen ventilation to the space and do not contain any material orequipment which could be a fire risk.

(IMO MSC/Circ.911, 7.3.1)


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Table A1 Structural fire protection times for separating bulkheads and decks of passenger craft (HSC Code Table 7.4-1)A B C D E F

Areas ofmajor firehazard A

60 30 -

60 1), 2) 60 60 3) 60 3), 4) 60 3) 60

1), 2) 1) 1), 8) 1) 1) 1), 7), 9)

Areas ofmoderatefire hazard B

30 -

30 2) 30 3) 60 3), 4) 30 3)

2) 8) 3)

Areas ofminor firehazard C

-

3) 30 3), 4) 3)

3) 8), 10) 3) 3)

Controlstations D

-

3), 4) 3)

3), 4) 3), 4) 3)

Evacuationstations andescape routes

E

-

3)

3) 3)

Openspaces F

-

-

NOTES:The figures on either side of the diagonal line represent the required structural fire protection time for the protection system on the relevantside of the division. When steel construction is used and two different structural fire protection times are required for a division in the table,only the greater one need be applied.

1) The upper side of the decks of special category spaces, ro-ro spaces and open ro-ro spaces need not be insulated.

2) Where adjacent spaces are in the same alphabetical category and a note 2 appears, a bulkhead or deck between such spaces need not be fitted if deemedunnecessary by the Administration. For example, a bulkhead need not be required between two store-rooms. A bulkhead, is however, required betweena machinery space and a special category space even through both spaces are in the same category.

3) No structural fire protection requirements; however, a smoke-tight division made of non-combustible or fire restricting material is required.

4) Control stations which are also auxiliary machinery spaces shall be provided with 30 min structural fire protection.

5) There are no special requirements for material or integrity of boundaries where only a dash appears in the tables.

6) The fire protection time is 0 min and the time for prevention of passage of smoke and flame is 30 min as determined by the first 30 min of the standardfire test.

7) Fire resisting divisions need not comply with 7.2.1.5 (Sec.1 C101.5).

8) When steel construction is used, fire resisting divisions adjacent to void spaces need not comply with 7.2.1.5.

9) The fire protection time may be reduced to 0 min for those parts of open ro-ro spaces which are not essential parts of the craft's main load bearing structure,where passengers have no access to them and the crew need not have access to them during any emergency.

10) On category A craft, this value may be reduced to 0 min where the craft is provided with only a single public space (excluding lavatories) protected by asprinkler system and adjacent to the operating compartment.


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B. Structural Fire Protection

B 100 Main structure

101 The requirements below apply to all craft irrespective ofconstruction material. The structural fire protection times forseparating bulkheads and decks shall be in accordance with ta-bles 7.4-1 (A1) and 7.4-2 (A2), and the structural fire protectiontimes are all based on providing protection for a period of 60min as referred to in 4.8.1 (Pt.3 Ch.7 Sec.1 C200). If any otherlesser structural fire protection time is determined for category

A craft and cargo craft by 4.8.1 (Pt.3 Ch.7 Sec.1 C200), then thetimes given below in 7.4.2.2 (203) and 7.4.2.3 (204) may be

amended pro rata. In no case shall the structural fire protectiontime be less than 30 min.

(HSC Code 7.4.1.1)Guidance note:In accordance with above, actual minimum structural fire protec-tion times for category A passenger craft in areas where Table A1specifies 60 minutes, is to be between 30 and 60 minutes, de-pending on evacuation time.


102 In using tables 7.4-1 (A1) and 7.4-2 (A2), it shall be notedthat the title of each category is intended to be typical rather

Table A2 Structural fire protection times for separating bulkheads and decks of cargo craft (HSC Code Table 7.4-2)A B C D E F

Areas ofmajor firehazard A

60 30 -

60 1), 2) 60 60 3) 60 3), 4) 60 3) 60

1), 2) 1) 1), 8) 1) 1) 1), 7), 9)

Areas ofmoderatefire hazard B

-

2), 6) 3) 60 3), 4) 3)

2), 6) 6) 6) 3)

Areas ofminor firehazard C

-

3) 30 3), 4) 3)

3) 8) 3) 3)

Controlstations D

-

3), 4) 3)

3), 4) 3), 4) 3)

Evacuationstations andescape routes

E

-

3)

3) 3)

Openspaces F

-

-

NOTES:The figures on either side of the diagonal line represent the required structural fire protection time for the protection system on the relevantside of the division. When steel construction is used and two different structural fire protection times are required for a division in the table,only the greater one need be applied.

1) The upper side of the decks of special category spaces, ro-ro spaces and open ro-ro spaces need not be insulated.

2) Where adjacent spaces are in the same alphabetical category and a note 2 appears, a bulkhead or deck between such spaces need not be fitted if deemedunnecessary by the Administration. For example, a bulkhead need not be required between two store-rooms. A bulkhead, is however, required betweena machinery space and a special category space even through both spaces are in the same category.

3) No structural fire protection requirements; however, a smoke-tight division made of non-combustible or fire restricting material is required.

4) Control stations which are also auxiliary machinery spaces shall be provided with 30 min structural fire protection.

5) There are no special requirements for material or integrity of boundaries where only a dash appears in the tables.

6) The fire protection time is 0 min and the time for prevention of passage of smoke and flame is 30 min as determined by the first 30 min of the standardfire test.

7) Fire resisting divisions need not comply with 7.2.1.5 (Sec.1 C101.5).

8) When steel construction is used, fire resisting divisions adjacent to void spaces need not comply with 7.2.1.5.

9) The fire protection time may be reduced to 0 min for those parts of open ro-ro spaces which are not essential parts of the craft's main load bearing structure,where passengers have no access to them and the crew need not have access to them during any emergency.

10) On category A craft, this value may be reduced to 0 min where the craft is provided with only a single public space (excluding lavatories) protected bya sprinkler system and adjacent to the operating compartment.


DET NORSKE VERITAS

than restricted. For determining the appropriate fire integritystandards to be applied to boundaries between adjacent spac-es, where there is doubt as to their classification for the purposeof this section, they shall be treated as spaces within the rele-vant category having the most stringent boundary requirement.

(HSC Code 7.4.1.2)

103 The hull, superstructure, structural bulkheads, decks,deckhouses and pillars shall be constructed of approved non-combustible materials having adequate structural properties.The use of other fire-restricting materials may be permitted pro-vided the requirements of this chapter are complied with andthe materials are in compliance with the Fire Test ProceduresCode.

(HSC Code 7.4.1.3)

Guidance note:

Relevant requirements are given in 200.


B 200 Fire-resisting divisions

201 Areas of major and moderate fire hazard shall be en-closed by fire-resisting divisions complying with the require-ments of 7.2.1 (Sec.1 C100) except where the omission of anysuch division would not affect the safety of the craft. These re-quirements need not apply to those parts of the structure in con-tact with water at the lightweight condition, but due regard shallbe given to the effect of temperature of hull in contact with waterand heat transfer from any uninsulated structure in contact withwater to insulated structure above the water.

(HSC Code 7.4.2.1)

Guidance note:Omission of fire insulation for outer boundaries of special cate-gory spaces and open vehicle decks, in way of open spaces, maybe accepted provided the following criteria are considered;

1) Structural fire insulation should not be omitted for structuresenclosing special category spaces which also are part of thevessel's main load-carrying structure.

2) Structural fire insulation should not be omitted where spe-cial category spaces are facing areas accessible to passen-gers, or areas where passengers or crew need access duringan emergency. Structural fire protection should be extendeda distance outside evacuation areas and also outside the pro-jection of other enclosed spaces where necessary.

3) Effectiveness and availability of extinguishing systemsshould be considered in connection with acceptance ofomission of structural fire protection.

4) To prevent small fires from growing more critical, and forcooling of aluminium structure, a fast response from the ex-tinguishing system should be ensured. Systems which areautomatically put into action by smoke or heat detectorscould be considered to ensure rapid response.

5) Availability and reliability of extinguishing system shouldbe in excess of what is obtained by arrangement in accord-ance with IMO Res. A.123(V).

6) Valves should be fitted, making it possible to isolate sec-tions of the extinguishing system in uninsulated parts of thevessel from the rest of the system.


202 Fire-resisting bulkheads and decks shall be constructedto resist exposure to the standard fire test for a period of30 minutes for areas of moderate fire hazard and 60 minutes forareas of major fire hazards except as provided in 7.4.1.1 (101).

(HSC Code 7.4.2.2)

203 Main load-carrying structures within areas of major firehazard and areas of moderate fire hazard and structures sup-porting control stations shall be arranged to distribute load suchthat there will be no collapse of the construction of the hull andsuperstructure when it is exposed to fire for the appropriate fireprotection time. The load-carrying structure shall also complywith the requirements of 7.4.2.4 (204) and 7.4.2.5 (205).

(HSC Code 7.4.2.3)

204 If the structures specified in 7.4.2.3 (203) are made ofaluminium alloy their installation shall be such that the temper-ature of the core does not rise more than 200°C above the am-bient temperature in accordance with the times in 7.4.1.1(101)and 7.4.2.2 (202).

(HSC Code 7.4.2.4)

205 If the structures specified in 7.4.2.3 (203) are made ofcombustible material, their insulation shall be such that theirtemperatures will not rise to a level where deterioration of theconstruction will occur during the exposure to the compositestandard fire test in accordance with the Fire Test ProcedureCode to such an extent that the load-carrying capability, in ac-cordance with the times in 7.4.1.1 (101) and 7.4.2.3 (203), willbe impaired.

(HSC Code 7.4.2.5)

Guidance note:See res. MSC.101(73) “Amendments to the International Codefor Application of Fire Test Procedures (FTP Code) ”.


206 The construction of all doors, and door frames in fire-re-sisting divisions, with the means of securing them when closed,shall provide resistance to fire as well as to the passage ofsmoke and flame equivalent to that of the bulkheads in whichthey are situated. Watertight doors of steel need not be insulat-ed. Also, where a fire-resisting division is penetrated by pipes,ducts, electrical cables etc., arrangements shall be made to en-sure that the fire-resisting integrity of the division is not im-paired, and necessary testing shall be carried out inaccordance with the Fire Test Procedures Code.

(HSC Code 7.4.2.6) .

Guidance note:With watertight doors of steel is here understood steel doors ofsubstantial thickness, similar to watertight doors normally usedin conventional steel ships. Watertight doors of steel without fireinsulation may only be accepted if there is no risk of ignitingcombustible materials on the other side of the fire-resisting divi-sions in a fire, and if fastening of the door is arranged to avoidexcessive heat transfer to the bulkhead itself if the bulkhead isnot constructed of steel.


207 Doors in fire-resisting divisions are to be of tested type.Special care is to be put into fastening arrangement of steeldoor frames in aluminium and composite bulkheads to avoidheat bridges that may threaten the integrity of the division in afire.

Guidance note:Fire insulated doors and hatches of aluminium or composites arenot accepted in fire-resisting divisions unless successfully testedin their bulkhead in accordance with IMO Res. A.754(18).



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SECTION 3MATERIAL REQUIREMENTS AND ARRANGEMENT

A. Material Requirements

A 100 Restricted use of combustible materials101 All separating divisions, ceilings or linings if not a fire-re-sisting division, shall be of non-combustible or fire-restrictingmaterials. Draught stops shall be of non-combustible or fire-re-stricting material.

(HSC Code 7.4.3.1)

102 Where insulation is installed in areas in which it couldcome into contact with any flammable fluids or their vapours, itssurface shall be impermeable to such flammable fluids or va-pours.

(HSC Code 7.4.3.2)

103 Furniture and furnishings in public spaces and crew ac-commodation shall comply with the following standards:

.1 all case furniture is constructed entirely of approvednon-combustible or fire-restricting materials, except thata combustible veneer with a calorific value not exceed-ing 45 MJ/m2 may be used on the exposed surface ofsuch articles;

.2 all other furniture such as chairs, sofas and tables, isconstructed with frames of non-combustible or fire-re-stricting materials;

.3 all draperies, curtains and other suspended textile ma-terials have qualities of resistance to the propagation offlame , this being determined in accordance with the FireTest Procedures Code;

.4 all upholstered furniture has qualities of resistance tothe ignition and propagation of flame, this being deter-mined in accordance with the Fire Test ProceduresCode;

Guidance note:The Fire Test Procedure Code describes a test method for ignita-bility of actual combination of covers and fillings as used in up-holstered furniture. Tests carried out separately on covers andfillings are normally not accepted.


.5 all bedding components have qualities of resistance tothe ignition and propagation of flame, this being deter-mined in accordance with the Fire Test ProceduresCode; and

.6 all deck finish materials comply with the Fire Test Proce-dures Code.

(HSC Code 7.4.3.3)

104 The following surfaces shall, as a minimum standard beconstructed of materials having low flame-spread characteris-tics:

.1 exposed surfaces in corridors and stairway enclosures,and of bulkheads (including windows), wall and ceilinglinings in all public spaces, crew accommodation, serv-ice spaces, control stations and internal assembly andevacuation stations;

.2 surfaces in concealed or inaccessible spaces in corri-dors and stairway enclosures, public spaces, crew ac-commodation, service spaces, control stations andinternal assembly and evacuation stations.

(HSC Code 7.4.3.4)

105 Any thermal and acoustic insulation shall be of non-com-bustible or of fire-restricting material. Vapour barriers and adhe-sives used in conjunction with insulation, as well as insulationof pipe fittings for cold service systems need not be non-com-

bustible or fire-restricting, but they shall be kept to the minimumquantity practicable and their exposed surfaces shall have lowflame spread characteristics.

(HSC Code 7.4.3.5)

106 Exposed surfaces in corridors and stairway enclosures,and of bulkheads (including windows), wall and ceiling linings,in all public spaces, crew accommodation, service spaces, con-trol stations and internal assembly and evacuation stationsshall be constructed of materials which, when exposed to fire,are not capable of producing excessive quantities of smoke ortoxic products, this being determined in accordance with theFire Test Procedures Code.

(HSC Code 7.4.3.6)

A 200 Arrangement and materials

201 Void compartments, where low density combustible ma-terials are used to provide buoyancy, shall be protected fromadjacent fire hazard areas by fire-resisting divisions, in accord-ance with tables 7.4-1 (Sec.2 Table A1) and 7.4-2 (Sec.2 TableA2). Also, the space and closures to it shall be gastight but itshall be ventilated to atmosphere.

(HSC Code 7.4.3.7)

202 In compartments where smoking is allowed, suitablenon-combustible ash containers shall be provided. In compart-ments where smoking is not allowed, adequate notices shall bedisplayed.

(HSC Code 7.4.3.8)

203 The exhaust gas pipes shall be arranged so that the riskof fire is kept to a minimum. To this effect, the exhaust systemshall be insulated and all the compartments and structureswhich are contiguous with the exhaust system, or those whichmay be affected by increased temperatures caused by wastegases in normal operation or in an emergency, shall be con-structed of non-combustible material or be shielded and insulat-ed with non-combustible material to protect from hightemperatures.

(HSC Code 7.4.3.9)

204 The design and arrangement of the exhaust manifolds orpipes shall be such as to ensure the safe discharge of exhaustgases.

(HSC Code 7.4.3.10).

B. Arrangement of Smoke Divisions andDraught Stops

B 100 Arrangement

101 Internal stairways connecting only two decks need onlybe enclosed at one deck by means of divisions and self-closingdoors having the structural fire protection time as required bytables 7.4-1 (Sec.2 Table A1) and 7.4-2 (Sec.2 Table A2) for di-visions separating those areas which each stairway serves.Stairways may be fitted in the open in a public space, providedthey lie wholly within such public space.

(HSC Code 7.4.4.1)

Guidance note:Public spaces extending over two decks may be considered asone space, provided that the mean length and width of the open-ing area between lower and upper part is at least 25% of the meanlength and width of the upper part of the whole space, or at leastof a corresponding area, and sufficient means of escape are pro-


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vided from both levels of the space directly leading to an adjacentsafe area or compartment.


102 Lift trunks shall be so fitted as to prevent the passage ofsmoke and flame from one deck to another and shall be provid-ed with means of closing so as to permit the control of draughtand smoke.

(HSC Code 7.4.4.2)

103 In public spaces, crew accommodation, service spaces,control stations, corridors and stairways, air spaces enclosedbehind ceilings, panelling or linings shall be suitably divided byclose-fitting draught stops not more than 14 m apart. On cate-gory A craft provided with only a single public space, draughtstops need not be provided in such public space.

(HSC Code 7.4.4.3)

C. Fuel and Other Flammable Fluid Tanks andSystems

C 100 Tanks and piping systems101 Tanks containing fuel and other flammable fluids shall beseparated from passenger, crew, and baggage compartmentsby vapour-proof enclosures or cofferdams which are suitablyventilated and drained.

(HSC Code 7.5.1)

102 Fuel oil tanks shall not be located in, be formed by anypart of the structural boundary of, major fire hazard. However,flammable fluids of a flashpoint not less than 60°C may be lo-cated within such areas provided the tanks are made of steel orother equivalent material.

(HSC Code 7.5.2)

103 Piping systems for flammable fluids shall in addition tothe requirements in 101 and 102, also satisfy requirement forsuch systems given in Ch.6 Sec.5.


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SECTION 4VENTILATION

A. Ventilation

A 100 Ventilation control and fire or smoke dampers101 The main inlets and outlets of all ventilation systems shallbe capable of being closed from outside the spaces being ven-tilated. In addition, such openings to areas of major fire hazardshall be capable of being closed from a continuously mannedcontrol station.

(HSC Code 7.6.1)

102 All ventilation fans shall be capable of being stoppedfrom outside the spaces which they serve, and from outside thespaces in which they are installed. Ventilation fans serving are-as of major fire hazard shall be capable of being operated froma continuously manned control station. The means provided forstopping the power ventilation to the machinery space shall beseparated from the means provided for stopping ventilation ofother spaces.

(HSC Code 7.6.2)

103 Areas of major fire hazard and spaces serving as assem-bly stations shall have independent ventilation systems andventilation ducts. Ventilation ducts for areas of major fire hazardshall not pass through other spaces, unless they are containedwithin a trunk or in an extended machinery space or casing in-sulated in accordance with tables 7.4-1 (Sec.2 Table A1) and7.4-2 (Sec.2 Table A2); ventilation ducts of other spaces shallnot pass through areas of major fire hazard. Ventilation outletsfrom areas of major fire hazard shall not terminate within a dis-tance of 1 m from any control station, evacuation station or ex-ternal escape route. In addition, exhaust ducts from galleyranges shall be fitted with:

.1 a grease trap readily removable for cleaning unless an al-ternative approved grease removal system is fitted;

.2 a fire damper located in the lower end of the duct which isautomatically and remotely operated, and in addition a re-motely operated fire damper located in the upper end ofthe duct;

.3 a fixed means for extinguishing a fire within the duct;

.4 remote control arrangements for shutting off the exhaustfans and supply fans, for operating the fire dampers men-tioned in .2 and for operating the fire-extinguishing system,which shall be placed in a position close to the entrance tothe galley. Where a multi-branch system is installed,means shall be provided to close all branches exhaustingthrough the same main duct before an extinguishing medi-um is released into the system; and

.5 suitably located hatches for inspection and cleaning.

(HSC Code 7.6.3)

104 Where a ventilation duct passes through a fire-resistingdivision, a fail safe automatic closing fire damper shall be fittedadjacent to the division. The duct between the division and the

damper shall be of steel or other equivalent material and insu-lated to the same standard as required for the fire resisting di-vision. The fire damper may be omitted where ducts passthrough spaces surrounded by fire-resisting divisions withoutserving those spaces providing that the duct has the samestructural fire protection time as the divisions it penetrates.Where a ventilation duct passes through a smoke-tight division,a smoke damper shall be fitted at the penetration unless theduct which passes through the space does not serve thatspace.

(HSC Code 7.6.4)

105 Where ventilation systems penetrate decks, the arrange-ments shall be such that the effectiveness of the deck in resist-ing fire is not thereby impaired and precautions shall be takento reduce the likelihood of smoke and hot gases passing fromone between-deck space to another through the system.

(HSC Code 7.6.5)

106 All dampers fitted on fire-resisting or smoke-tight divi-sions shall also be capable of being manually closed from eachside of the division in which they are fitted, except for thosedampers fitted on ducts serving spaces not normally mannedsuch as stores and toilets that may be manually operated onlyfrom outside the served spaces. All dampers shall also be ca-pable of being remotely closed from the continuously mannedcontrol station.

(HSC Code 7.6.6)

107 Ducts shall be made of non-combustible or fire restrictingmaterials. Short ducts, however, may be of combustible mate-rials subject to the following conditions:

.1 their cross-section does not exceed 0.02 m2

.2 their length does not exceed 2 m

.3 they may only be used at the terminal end of the venti-lation system

.4 they shall not be situated less than 600 mm from anopening in a fire-resisting or fire restricting division, and

.5 their surface have low flame spread characteristics.

(HSC Code, 2000, 7.6.7)

108 Dampers in fire-resisting divisions are to be of an ap-proved type. Special care is to be put into fastening arrange-ment of steel ducts and steel frames in aluminium andcomposite structures to avoid heat bridges that may threatenthe integrity of the division in a fire.

109 Supply and exhaust ducts for gas turbines may be ac-cepted without dampers, provided the integrity of the ducts aremaintained throughout the spaces they penetrate. Supply ductsfor gas turbines need not be fire insulated outside the machin-ery spaces, provided their integrity is maintained inside themachinery spaces.


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SECTION 5FIRE DETECTION SYSTEMS

A. Fire Detection and Alarm Systems

A 100 Areas to be protected101 Areas of major and moderate fire hazard and other en-closed spaces not regularly occupied within public spaces andcrew accommodation, such as toilets, stairway enclosures, cor-ridors and escape routes shall be provided with an approvedautomatic smoke detection system and manually operated callpoints complying with the requirements of 7.7.1.1 (201) and7.7.1.3 (203) to indicate at the control station the location of out-break of a fire in all normal operating conditions of the installa-tions. Detectors operated by heat instead of smoke may beinstalled in galleys.

(HSC Code 7.7.1, first part).

102 Main propulsion machinery room(s) shall in addition havedetectors sensing other than smoke and be supervised by TVcameras monitored from the operating compartment.

(HSC Code 7.7.1, middle part).

103 Manually operated call points shall be installed through-out the public spaces, crew accommodation, corridors andstairway enclosures, service spaces and where necessary con-trol stations. One manually operated call point shall be locatedat each exit from these spaces and from areas of major fire haz-ard.

(HSC Code 7.7.1, last part).Guidance note:The requirements in 200 and 300 are taken from the 2000 HSCCode and correspond to SOLAS 2000 Reg. II-2/7 as applicablefor fire detection and alarm systems on conventional ships. Therequirements have only to a limited extent been altered to suit thespecial needs and characteristics of high-speed craft.


104 In addition to the above requirements, gas turbines are tobe monitored by flame detectors.

A 200 Requirements for system201 General requirements

.1 Any required fixed fire detection and fire alarm systemwith manually operated call points shall be capable ofimmediate operation at all times.

.2 Power supplies and electric circuits necessary for theoperation of the system shall be monitored for loss ofpower or fault conditions as appropriate. Occurrence ofa fault condition shall initiate a visual and audible faultsignal at the control panel which shall be distinct from afire signal.

.3 There shall be not less than two sources of power sup-ply for the electrical equipment used in the operation ofthe fixed fire detection and fire alarm systems, one ofwhich shall be an emergency source. The supply shallbe provided by separate feeders reserved solely for thatpurpose. Such feeders shall run to an automaticchange-over switch situated in or adjacent to the controlpanel for the fire detection system.

.4 Detectors and manually operated call points shall begrouped into sections. The activation of any detector ormanually operated call point shall initiate a visual andaudible fire signal at the control panel and indicatingunits. If the signals have not received attention withintwo minutes an audible alarm shall be automaticallysounded throughout the crew accommodation and serv-ice spaces, control stations and machinery spaces.There shall be no time delay for the audible alarms in

crew accommodation areas when all the control stationsare unattended. The alarm sounder system need not bean integral part of the fire detection system.

Guidance note:Section: group of fire detectors and manually operated call pointsas reported in the indicating unit(s).Loop: electrical circuit linking detectors of various sections andconnected to the control panel.


.5 The control panel shall be located in the operating com-partment or in the main fire control station.

.6 Indicating units shall, as a minimum, denote the sectionin which a detector or manually operated call point hasoperated. At least one unit shall be so located that it iseasily accessible to responsible members of the crew atall times, when at sea or in port, except when the craft isout of service. One indicating unit shall be located in theoperating compartment if the control panel is located inthe space other than the operating compartment.

.7 Clear information shall be displayed on or adjacent toeach indicating unit about the spaces covered and thelocation of the sections.

.8 Where the fire detection system does not include meansof remotely identifying each detector individually, nosection covering more than one deck within public spac-es, crew accommodation, corridors, service spaces andcontrol stations shall normally be permitted except asection which covers an enclosed stairway. In order toavoid delay in identifying the source of fire, the numberof enclosed spaces included in each section shall belimited as determined by the Administration. In no caseshould more than 50 enclosed spaces be permitted inany section. If the detection system is fitted with remote-ly and individually identifiable fire detectors, the sectionsmay cover several decks and serve any number of en-closed spaces.

.9 In passenger craft, if there is no fire detection system ca-pable of remotely and individually identifying each de-tector, a section of detectors shall not serve spaces onboth sides of the craft nor on more than one deck andneither shall it be situated in more than one zone ac-cording to 7.11.1 (Pt.5 Ch.1 Sec.4 B101) except that theAdministration, if it is satisfied that the protection of thecraft against fire will not thereby be reduced, may permitsuch a section of detectors to serve both sides of thecraft and more than one deck. In passenger craft fittedwith individually identifiable fire detectors, a section mayserve spaces on both sides of the craft and on severaldecks.

.10 A section of fire detectors which covers a control station,a service space, a public space, crew accommodation,corridor or stairway enclosure shall not include a ma-chinery space of major fire hazard.

Guidance note:Additional requirements for fire detection system in special cat-egory spaces are included in Pt.5 Ch.2 Sec.4 B300.


.11 Detectors shall be operated by heat, smoke or otherproducts of combustion, flame, or any combination ofthese factors. Detectors operated by other factors indic-ative of incipient fires may be considered by the Admin-istration provided that they are no less sensitive than


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such detectors. Flame detectors shall only be used inaddition to smoke or heat detectors.

.12 Suitable instructions and component spares for testingand maintenance shall be provided.

.13 The function of the detection system shall be periodical-ly tested by means of equipment producing hot air at theappropriate temperature, or smoke or aerosol particleshaving the appropriate range of density or particle size,or other phenomena associated with incipient fires towhich the detector is designed to respond. All detectorsshall be of a type such that they can be tested for correctoperation and restored to normal surveillance withoutthe renewal of any component.

.14 The fire detection system shall not be used for any otherpurpose, except that closing of fire doors and similarfunctions may be permitted at the control panel.

.15 Fire detection systems with a zone address identifica-tion capability shall be so arranged that:

.15.1 a loop cannot be damaged at more than one point by afire;

Guidance note:The requirement for a system that it shall be so arranged that aloop cannot be damaged at more than one point by a fire, is con-sidered satisfied by arranging the loop such that the data highwaywill not pass through a space, or a part of a space, covered by adetector more than once.


.15.2 means are provided to ensure that any fault (e.g., powerbreak; short circuit; earth) occurring in the loop shall notrender the whole loop ineffective;

Guidance note:

This is considered satisfied when a fault occurring in the looponly render ineffective a part of the loop. This part of the loop isnot to be larger than a section in a system which is without meansof remotely identifying each detector. Limitations to the extent ofa single section in such systems are included in the precedingparts of these general requirements.


.15.3 all arrangements are made to enable the initial configu-ration of the system to be restored in the event of failure(electrical, electronic, informatic); and

the first initiated fire alarm shall not prevent any otherdetector to initiate further fire alarms.

.15.4 The first initiated fire alarm shall not prevent any otherdetector to initiate further fire alarms.

(HSC Code 7.7.1.1)

202 Installation requirements

.1 In addition to 7.7.1 (103) manually operated call pointsshall be readily accessible in the corridors of each decksuch that no part of the corridor is more than 20 m froma manually operated call point.

.2 Where a fixed fire detection and fire alarm system is re-quired for the protection of spaces other than stairways,corridors and escape routes, at least one detector com-plying with 7.7.1.1.11 (201.11) shall be installed in eachsuch space.

.3 Detectors shall be located for optimum performance.Positions near beams and ventilation ducts or other po-sitions where patterns of air flow could adversely affectperformance and positions where impact or physicaldamage is likely shall be avoided. In general, detectorswhich are located on the overhead shall be a minimumdistance of 0.5 m away from bulkheads.

.4 The maximum spacing of detectors shall be in accord-ance with Table A1.

.5 Electrical wiring which forms part of the system shall beso arranged as to avoid machinery spaces of major firehazard, and other enclosed spaces of major fire hazardexcept, where it is necessary, to provide for fire detec-tion or fire alarm in such spaces or to connect to the ap-propriate power supply.

(HSC Code 7.7.1.2)

203 Design requirements

.1 The system and equipment shall be suitably designed towithstand supply voltage variation and transients, ambi-ent temperature changes, vibration, humidity, shock, im-pact and corrosion normally encountered in ships.

.2 Smoke detectors shall be certified to operate before thesmoke density exceeds 12.5% obscuration per metre,but not until the smoke density exceeds 2% obscurationper metre. Smoke detectors to be installed in otherspaces shall operate within sensitivity limits to the satis-faction of the Administration having regard to the avoid-ance of detector insensitivity or over-sensitivity.

.3 Heat detectors shall be certified to operate before thetemperature exceeds 78°C, but not until the tempera-ture exceeds 54°C when the temperature is raised tothose limits at a rate less than 1°C per minute. At higherrates of temperature rise, the heat detector shall operatewithin temperature limits having regard to the avoidanceof detector insensitivity or over-sensitivity.

.4 At the discretion of the Administration, the permissibletemperature of operation of heat detectors may be in-creased to 30°C above the maximum deckhead temper-ature in drying rooms and similar spaces of a normalhigh ambient temperature.

.5 Flame detectors corresponding to 7.7.1.1.11 (201.11)shall have a sensitivity sufficient to determine flameagainst an illuminated space background and a falsesignal identification system.

(HSC Code 7.7.2.3)

A 300 Fire detection for periodically unattendedmachinery spaces301 A fixed fire-detection and fire alarm system for periodical-ly unattended machinery spaces shall comply with the followingrequirements

.1 The fire detection system shall be so designed and thedetectors so positioned as to detect rapidly the onset offire in any part of those spaces and under any normalconditions of operation of the machinery and variationsof ventilation as required by the possible range of ambi-ent temperatures. Except in spaces of restricted heightand where their use is specially appropriate, detectionsystem using only thermal detectors shall not be permit-ted. The detection system shall initiate audible and vis-ual alarms distinct in both respects from the alarms ofany other system not indicating fire, in sufficient placesto ensure that the alarms are heard and observed on thenavigating bridge and by a responsible engineer officer.

Table A1 Maximum spacing of detectorsType of de-tector

Maximumfloor area

per detector

Maximumdistance

apartbetweencentres

Maximumdistance

away frombulkheads

Heat 37 m2 9 m 4.5 mSmoke 74 m2 11 m 5.5 mThe Administration may require or permit other spacings basedupon test data which demonstrate the characteristics of the detec-tors.


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When the operating compartment is unmanned thealarm shall sound in a place where a responsible mem-ber of the crew is on duty.

.2 After installation, the system shall be tested under vary-ing conditions of engine operation and ventilation.

(HSC Code 7.7.3)

302 The fire detection and alarm system is to be of an ap-proved type. Fire detectors in machinery spaces are to be typeapproved.


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SECTION 6FIRE EXTINGUISHING SYSTEMS

A. Fixed Fire Extinguishing Systems

A 100 Major fire hazard areas101 Areas of major fire hazard shall be protected by an ap-proved fixed fire-extinguishing system operable from the con-trol position which is adequate for the fire hazard that may exist.The system shall comply with 7.7.3.2 (201) and 7.7.3.3 (301) orwith alternative arrangements approved by the Administrationtaking into account the recommendations and guidelines devel-oped by the Organization* and be capable of local manual con-trol and remote control from the continuously manned controlstations.* Refer to MSC/Circ.668 - Alternative arrangements for halon fire-extin-

guishing systems in machinery spaces and pump-rooms, and amend-ments thereto contained in MSC/Circ.728 - Revised test method forequivalent water-based fire extinguishing systems for machinery spacesof category A and cargo pump-rooms contained in MSC/Circ.668; and toMSC/Circ.848 - Revised Guidelines for the approval of equivalent fixedgas fire-extinguishing systems, as referred to in SOLAS 74, for machin-ery spaces and cargo pump-rooms.

(HSC Code 7.7.3.1)Guidance note:For category A passenger craft of limited size, it may be acceptedto centralise the fire fighting equipment and controls for the ma-chinery spaces in a different location than the main control sta-tion, provided equivalent fire fighting abilities and overall safetycan be documented. As craft of limited size will normally be ac-cepted a vessel of less than 30 m length and distance betweencontrol station and centralised fire fighting controls of not morethan 15 m.


A 200 General requirements for fixed gas fire extin-guishing systems201 General requirements

.1 In all craft where gas is used as the extinguishing medium,the quantity of gas shall be sufficient to provide two inde-pendent discharges. The second discharge into the spaceshall only be activated manually from a position outside thespace being protected. Where the space has a local fire-suppression system installed, based on the guidelines de-veloped by the Organization*, to protect fuel oil, lubricatingoil and hydraulic oil located near exhaust manifolds, turbochargers or similar heated surfaces on main and auxiliaryinternal combustion engines, a second discharge need notbe required.* Refer to the Guidelines for the approval of water-based local applica-tion of fixed fire-suppression systems, to be developed by the Organiza-tion. (MSC/Circ.913).

.2 The use of a fire-extinguishing medium which, in the opin-ion of the Administration, either by itself or under expectedconditions of use will adversely affect the earth's ozonelayer and/or gives off toxic gases in such quantities as toendanger persons shall not be permitted.

.3 The necessary pipes for conveying fire-extinguishing me-dium into protected spaces shall be provided with controlvalves so marked as to indicate clearly the spaces to whichthe pipes are led. Non-return valves shall be installed indischarge lines between cylinders and manifolds. Suitableprovision shall be made to prevent inadvertent admissionof the medium to any space.

.4 The piping for the distribution of fire-extinguishing mediumshall be arranged and discharge nozzles so positioned thata uniform distribution of medium is obtained.

.5 Means shall be provided to close all openings which mayadmit air to, or allow gas to escape from, a protectedspace.

.6 Where the volume of free air contained in air receivers inany space is such that, if released in such space in theevent of fire, such release of air within that space would se-riously affect the efficiency of the fixed fire-extinguishingsystem, the Administration should require the provision ofan additional quantity of fire-extinguishing medium.

.7 Means shall be provided for automatically giving audiblewarning of the release of fire-extinguishing medium intoany space in which personnel normally work or to whichthey have access. The alarm shall operate for a suitableperiod before the medium is released, but not less than 20s. Visible alarm shall be arranged in addition to the audiblealarm.

For CO2 systems, an automatic time delay unit for the re-lease of the extinguishing medium shall be fitted. Thetime delay unit shall be equipped with an override andsignboard describing emergency bypass operating in-structions.

In the case of an electric time delay, a dedicated battery(UPS) may be accepted as an alternative to the overridefunction.

.8 The means of control of any fixed gas fire-extinguishingsystem shall be readily accessible and simple to operateand shall be grouped together in as few locations as pos-sible at positions not likely to be cut off by a fire in a pro-tected space. At each location there shall be clearinstructions relating to the operation of the system havingregard to the safety of personnel.

.9 Automatic release of fire-extinguishing medium shall notbe permitted.

Guidance note:For gas turbines that are fitted in a dedicated enclosure, automat-ic release of fire-extinguishing medium inside the enclosure maybe accepted provided satisfactory measures are taken to avoidany risk of automatic release when persons are present in the pro-tected space.


.10 Where the quantity of extinguishing medium is requiredto protect more than one space, the quantity of mediumavailable need not be more than the largest quantity re-quired for any one space so protected.

.11 Pressure containers required for the storage of fire-ex-tinguishing medium shall be located outside protectedspaces in accordance with 7.7.3.2.14 (201.14). Pres-sure containers may be located inside the space to beprotected if in the event of accidental release personswill not be endangered.

.12 Means shall be provided for the crew to safely check thequantity of medium in the containers.

.13 Containers for the storage of fire-extinguishing mediumand associated pressure components shall be designedhaving regard to their locations and maximum ambienttemperatures expected in service.

Guidance note:Pressure containers are to be certified by the Society according toCh.7 Sec.1.


.14 When the fire-extinguishing medium is stored outside aprotected space, it shall be stored in a room which shallbe situated in a safe and readily accessible position andshall be effectively ventilated. Any entrance to such astorage room shall preferably be from the open deck


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and in any case shall be independent of the protectedspace. Access doors shall open outwards, and bulk-heads and decks including doors and other means ofclosing any opening therein, which form the boundariesbetween such rooms and adjoining enclosed spaces,shall be gas tight. Such storage rooms shall be treatedas control rooms.

.15 Spare parts for the system shall be stored on board orat a base port.

If the release of a fire extinguishing medium producessignificant over or under pressurisation in the protectedspace, means shall be provided to limit the inducedpressures to acceptable limits to avoid structural dam-age.

(HSC Code 7.7.3.2)

A 300 Carbon dioxide systems

301 General

.1 For cargo spaces, the quantity of carbon dioxide availa-ble shall, unless otherwise provided, be sufficient to givea minimum volume of free gas equal to 30% of the grossvolume of the largest cargo space so protected in thecraft.

The corresponding quantity of CO2 for ro-ro cargospaces and spaces carrying vehicles with fuel in theirtanks for their own propulsion is 45%.

.2 For machinery spaces, the quantity of carbon dioxidecarried shall be sufficient to give a minimum volume offree gas equal to the larger of the following volumes, ei-ther

.2.1 40% of the gross volume of the largest machinery spaceso protected, the volume to exclude that part of the cas-ing above the level at which the horizontal area of thecasing is 40% or less of the horizontal area of the spaceconcerned taken midway between the tank top and thelowest part of the casing; or

.2.2 35% of the gross volume of the largest machinery spaceprotected, including the casing;

provided that the above-mentioned percentages may bereduced to 35% and 30% respectively for cargo craft ofless than 2,000 tons gross tonnage; provided also that iftwo or more machinery spaces are not entirely separatethey shall be considered as forming one space.

.3 For the purpose of this paragraph the volume of free car-bon dioxide shall be calculated at 0.56 m3/kg.

.4 For machinery spaces, the fixed piping system shall besuch that 85% of the gas can be discharged into thespace within 2 min.

.5 Two separate controls shall be provided for releasingcarbon dioxide into a protected space and to ensure theactivation of the alarm. One control shall be used to dis-charge the gas from its storage containers. A secondcontrol shall be used for opening the valve of the pipingwhich conveys the gas into the protected spaces.

.6 The two controls shall be located inside a release boxclearly identified for the particular space. If the box con-taining the controls is to be locked, a key to the box shallbe in a break-glass type enclosure conspicuously locat-ed adjacent to the box.

(HSC Code 7.7.3.3)

302 The CO2 bottle valves are to be of a type which makes itpossible to close the bottles after testing the release systemwithout emptying the CO2 content.

303 Bottles are not to contain more than 45 kg of CO2 andthe ratio of charge is not to exceed 0.67 kg/litre. The company

charging the bottles is to issue a certificate for the ratio ofcharge.

304 The connection between the bottle-valve and the mani-fold for the CO2 battery is normally to be flexible high pressurehose of approved type. Other types of connections which areconsidered equivalent may be accepted.

305 The CO2 pipes connecting the manifold to the valves areto be steel pipes, the wall thickness of which is to be at least asgiven in Table A1. The pipes are to comply with the require-ments specified in Pt.2 Ch.1 or other recognized standard andare to be certified by the Society. Fittings used as pipe joints inthis part of the CO2 line are to be of steel or equivalent mate-rial.

306 Master valves are to be of steel or equivalent materialand are to comply with PN 100 (nominal pressure).

307 The wall thickness of CO2 pipes fitted between valvesand nozzles is at least to comply with Table A1. Fittings usedto join this part of the CO2 pipes may be of malleable cast ironor nodular cast iron.

308 The diameter of CO2 pipes is to be based on the quantityof CO2 they are intended to carry. The maximum quantity ofCO2 which may be carried through any pipeline, is given inTable A2. Deviation from the table may be accepted when doc-umented by calculations.

Guidance note:Calculations are to be performed in accordance with a recognisedstandard, i.e. NFPA 12, ISO/DIS 6183 or equivalent.


309 Regarding manufacture, workmanship, inspection andtesting of pipes, see Ch.6 Sec.7. For CO2- manifolds the testpressure may be accepted as 1.25 times the design pressure.

310 The distribution manifolds and pipes between the cylin-ders and the manifolds are to be subject to a pressure test of atleast 1.25 times the relief valve setting, or minimum 125 barprior to installation. After installation, pipe sections betweencylinders and master valves as well as any release line incor-porated in the system are to be pneumatically pressure tested to

Table A1 Minimum wall thickness for steel pipes for fireextinguishing CO2 pipes

External diameter D(mm)

From CO2 bottles tovalves

From valves to noz-zles

21.3 - 26.9 3.2 2.630.0 - 48.3 4.0 3.251.0 - 60.3 4.5 3.663.5 - 76.1 5.0 3.682.5 - 88.9 5.6 4.0

101.6 6.3 4.0108.0 - 114.3 7.1 4.5

127.0 8.0 4.5133.0 - 139.7 8.0 5.0152.4 - 168.3 8.8 5.6

Remarks to the table:

1) The external diameter and thicknesses are in accordance with ISO Rec-ommendations R 336 for welded and seamless steel pipes. For pipescovered by other standards, thickness slightly less may be accepted.

2) The minimum wall thickness for larger diameters will be subject to spe-cial consideration.

3) In general, the minimum wall thickness is the nominal wall thickness,and no allowance need be made for negative tolerance and reduction inthickness due to bending.

4) The minimum wall thickness for threaded pipes is to be measured at thebottom of the thread.


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at least 50 bar. All piping from master valves to nozzles are tobe tightness tested.

B. Portable Fire Extinguishers

B 100 Location of fire extinguishers101 Control stations, public spaces, crew accommodation,corridors and service spaces shall be provided with portable fireextinguishers of approved type and design. At least five porta-ble extinguishers shall be provided, and so positioned as to bereadily available for immediate use. In addition, at least one ex-tinguisher suitable for machinery space fires shall be positionedoutside each machinery space entrance.

(HSC Code 7.7.4)

102 All fire extinguishers are to be of approved types and de-signs.

103 The mass of portable fire extinguishers shall not exceed23 kg.Each powder or carbon dioxide extinguisher shall have a ca-

pacity of at least 5 kg, and each foam extinguisher a capacity ofat least 9 litre.

Carbon dioxide fire extinguishers shall not be placed in accom-modation spaces. In control stations and other spaces contain-ing electrical or electronic equipment or appliances necessaryfor the safety of the craft, fire extinguishers shall be providedwith extinguishing media which are neither electrically conduc-tive nor harmful to the equipment and appliances.

Fire extinguishers shall be ready for use and located in easilyvisible places such that they can be reached quickly and easilyat any time in the event of a fire. In addition, the fire extinguish-er shall be located such that their serviceability is not impairedby the weather, vibration or other external factors. Portable fireextinguishers shall be provided with devices to identify whetherthey have been used.

(Parts of IMO MSC/Circ.911, 7.7.7)

C. Deep-fat cooking equipment

C 100 Protection of deep-fat cooking equipment

101 Where deep-fat cooking equipment is installed, all suchinstallations shall be fitted with:

.1 an automatic or manual fixed extinguishing system testedto an appropriate standard acceptable to the Organiza-tion*;* Refer to ISO 15371 - Ships and marine technology - Fire-extin-guishing systems for protection of galley deep-fat cooking equip-ment - Fire tests.

.2 a primary and back up thermostat with an alarm to alert theoperator in the event of failure of either thermostat;

.3 arrangements for automatically shutting off the electricalpower to the deep-fat cooking equipment upon activationof the extinguishing system;

.4 an alarm for indicating operation of the extinguishing sys-tem in the galley where the equipment is installed; and

.5 controls for manual operation of the extinguishing systemwhich are clearly labelled for ready use by the crew.

(HSC Code 7.7.6)

Table A2 Maximum quantity of CO2 which may be carriedthrough any pipeline

Maximum quantity of CO2 Internal diameter of pipeline45 kg 13 mm100 kg 19 mm135 kg 25 mm275 kg 32 mm450 kg 38 mm

1100 kg 50 mm2000 kg 76 mm3250 kg 89 mm4750 kg 101 mm6800 kg 114 mm9500 kg 127 mm

15250 kg 152 mm


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SECTION 7FIRE PUMPS, FIRE MAINS, HYDRANTS AND HOSES

A. Fire Main System

A 100 General requirements101 Fire pumps, and appropriate associated equipment, oralternative effective fire-extinguishing systems shall be fitted asfollows:

.1 At least two independently driven pumps shall be ar-ranged. Each pump shall have at least two thirds the ca-pacity of a bilge pump as determined by 10.3.5 (Ch.6Sec.4 A105) and 10.3.6 (Ch.6 Sec.4 A106) but not lessthan 25 m3/h. Each fire pump shall be able to deliver suf-ficient quantity and pressure of water to simultaneouslyoperate the hydrants as required by .4.

.2 The arrangement of the pumps shall be such that in theevent of a fire in any one compartment all the fire pumpswill not be put out of action.

.3 Isolating valves to separate the section of the fire mainwithin the machinery space containing the main firepump or pumps from the rest of the fire main shall be fit-ted in an easily accessible and tenable position outsidethe machinery spaces. The fire main shall be so ar-ranged that when the isolating valves are shut all the hy-drants on the craft, except those in the machinery spacereferred to above, can be supplied with water by a firepump not located in this machinery space through pipeswhich do not enter this space. The spindles of manuallyoperated valves shall be easily accessible and all valvesshall be clearly marked.

Guidance note:Except for category B passenger craft, isolating valves to sepa-rate the section of the fire main within the fire pump space from

the rest of the system are not required if the fire pumps are locat-ed in areas of minor fire hazard. Valves are to be fitted to preventthe possibility that a failure in one fire pump may put the wholesystem out of service.


.4 Hydrants shall be so arranged that any location on thecraft can be reached by the water jets from two fire hos-es from two different hydrants, one of the jets being froma single length of hose. Ro-ro spaces hydrants shall belocated so that any location within the space can bereached by two water jets from two different hydrants,each jet being supplied from a single length of hose.

.5 Each fire hose shall be of non-perishable material andhave a maximum length approved by the Administra-tion. Fire hoses, together with any necessary fittings andtools, shall be kept ready for use in conspicuous posi-tions near the hydrants. All fire hoses in interior locationsshall be connected to the hydrants at all times. One firehose shall be provided for each hydrant as required by.4.

.6 Each fire hose shall be provided with a nozzle of an ap-proved dual purpose type (i.e. spray/jet type) incorporat-ing a shut-off.

Guidance note:Fire main and other fire extinguishing systems may be integratedprovided requirements for capacity and redundancy are main-tained.


(HSC Code 7.7.5)


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SECTION 8MISCELLANEOUS

A. Fire Control Plans

A 100 Requirements

101 There shall be permanently exhibited, for the guidance ofthe master and officers of the craft, fire control plans showingclearly for each deck the following positions: the control sta-tions, the sections of the craft which are enclosed by fire-resist-ing divisions together with particulars of the fire alarms, firedetection systems, the sprinkler installations, the fixed and port-able fire-extinguishing appliances, the means of access to thevarious compartments and decks in the craft, the ventilatingsystem (including particulars of the master fan controls, the po-sitions of dampers and identification numbers of the ventilatingfans serving each section of the craft), the location of the inter-national shore connection, if fitted, and the position of all meansof control referred to in 7.5.3 , 7.6.2 (Sec.4 A102), 7.7.1 (Sec.5A100) and 7.7.3.1 (Sec.6 A101). The text of such plans* shallbe in the official language of the flag state. However, if the lan-guage is not English, French or Spanish, a translation into oneof those languages shall be included.

* Refer to Graphical Symbols for Fire Control Plans, adopted by the Or-ganization by resolution A.654(16).

(HSC Code 7.9.1)

102 A duplicate set of fire control plans or a booklet contain-ing such plans shall be permanently stored in a prominentlymarked weathertight enclosure outside the deckhouse for theassistance of shore-side fire-fighting personnel.

(HSC Code 7.9.2)

B. Openings in Fire-resisting Divisions

B 100 Requirements for doors and hatches

101 Except for the hatches between cargo, special category,store, and baggage spaces and between such spaces and theweather decks, all openings shall be provided with permanentlyattached means of closing which shall be at least as effectivefor resisting fires as the divisions in which they are fitted.

(HSC Code 7.9.3.1)

102 It shall be possible for each door to be opened andclosed from each side of the bulkhead by one person only.

(HSC Code 7.9.3.2)

103 Fire doors bounding areas of major fire hazard and stair-way enclosures shall satisfy the following requirements:

.1 The doors shall be self-closing and be capable of closingwith an angle of inclination of up to 3.5° opposing closure.The approximate time of closure for hinged fire doors shallbe no more than 40 s and no less than 10 s from the be-ginning of their movement with the craft in the upright po-sition. The approximate uniform rate of closure for slidingfire doors shall be of no more than 0.2 m/s and no less than0.1 m/s with the craft in the upright position.

.2 Remote released sliding or power-operated doors shall beequipped with an alarm that sounds at least 5 s but nomore than 10 s after the door is released from the continu-ously manned control station and before the door begins tomove and continue sounding until the door is completelyclosed. Doors designed to reopen upon contacting an ob-ject in their paths shall re-open no more than 1 m from thepoint of contact.

Guidance note:Doors of limited size and weight, fitted with an automatic reo-pening device, and remote-controlled or power-operated doors

that for other reasons do not pose a danger to passengers or crewmay be accepted without this alarm.


.3 All doors shall be capable of remote release from a contin-uously manned central control station, either simultane-ously or in groups, and shall be capable of release alsoindividually from a position at both sides of the door. In-dication shall be provided at the fire door indicator panelin the continuously manned control station whether eachof the remote released doors is closed. The release mech-anism shall be so designed that the door will automaticallyclose in the event of disruption of the control system ormain source of electrical power. Release switches shallhave an on-off function to prevent automatic resetting ofthe system. Hold-back hooks not subject to continuouslymanned control station release shall be prohibited.

.4 A door closed remotely from the continuously mannedcontrol station shall be capable of being re-opened at bothsides of the door by local control. After such local open-ing, the door shall automatically close again.

.5 Local power accumulators for power-operated doors shallbe provided in the immediate vicinity of the doors to be op-erated after disruption of the control system or main sourceof electric power at least ten times (fully opened andclosed) using the local controls.

.6 Disruption at one door of the control system or mainsource of electric power shall not impair the safe function-ing of the other doors.

.7 Double-leaf doors equipped with a latch necessary to theirfire integrity shall have a latch that is automatically activat-ed by the operation of the doors when released by the sys-tem.

.8 Doors giving direct access to special category spaceswhich are power-operated and automatically closed neednot be equipped with alarms and remote-release mecha-nisms required in .2 and .3.

.9 The components of the local control system shall be ac-cessible for maintenance and adjusting.

.10 Power operated doors shall be provided with a control sys-tem of an approved type which shall be able to operate incase of fire, this being determined in accordance with theFire Test Procedures Code. This system shall satisfy thefollowing requirements:

.1 the control system shall be able to operate at a tem-perature of at least 200° C for at least 60 minutes,served by the power supply;

.2 the power supply for all other doors not subject tofire shall not be impaired; and

.3 at temperatures exceeding 200° C the control sys-tem shall be automatically isolated from the powersupply and shall be capable of keeping the doorclosed up to at least 945° C.

(HSC Code 7.9.3.3)

104 The requirements for integrity of fire-resisting divisions ofthe outer boundaries facing open spaces of a craft shall not ap-ply to glass partitions, windows and sidescuttles. Similarly, therequirements for integrity of fire-resisting divisions facing openspaces shall not apply to exterior doors in superstructures anddeckhouses.

(HSC Code 7.9.3.4)Guidance note:Doors and ramps in fire-resisting divisions facing open spacesare not to impair the fire-resisting properties of the division ex-cept where the omission of any such division would not affect the


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safety of the craft. Doors and ramps that are not regarded as crit-ical, i.e. not located near evacuation areas or below enclosed su-perstructure, may be accepted without fire insulation if cooled bya fixed pressure water-spraying system. Constructions of steelfacing open spaces need not be protected.


105 Doors in smoke-tight divisions shall be self-closing.Doors which are normally kept open shall close automatically orby remote control from a continuously manned control station.

(HSC Code 7.9.3.5)

C. Firefighter’s Outfits

C 100 Number and location101 All craft other than category A passenger craft shall carryat least two firefighter's outfits complying with the requirementsof 7.10.3 (200).

(HSC Code 7.10.1)

102 In addition, there shall be provided in category B passen-ger craft for every 80 m, or part thereof, of the aggregate of thelength of all passenger spaces and service spaces on the deckwhich carries such spaces or, if there is more than one suchdeck, on the deck which has the largest aggregate of suchlength, two firefighter's outfits and two sets of personal equip-ment, each comprising the items stipulated in 7.10.3.1.1(201.1.1) to 7.10.3.1.3 (201.1.3).

(HSC Code 7.10.1.1)

103 In category B passenger craft, for each pair of breathingapparatuses there shall be provided one water fog applicatorwhich shall be stored adjacent to such apparatus.

(HSC Code 7.10.1.2)

104 The Administration may require additional sets of per-sonal equipment and breathing apparatus, having due regardto the size and type of the craft.

(HSC Code 7.10.1.3)Guidance note:Car ferries, and passenger craft of Category A of more than 500gross tonnage, are normally to be fitted with at least two firefight-er's outfits complying with the requirements of 200.


105 The firefighter's outfits or sets of personal equipmentshall be so stored as to be easily accessible and ready for useand, where more than one firefighter's outfit or more than oneset of personal equipment is carried, they shall be stored in

widely separated positions.

(HSC Code 7.10.2)

C 200 Personal equipment and breathing apparatus

201 A firefighter's outfit shall consist of

.1 Personal equipment comprising

.1.1 protective clothing of material to protect the skin fromthe heat radiating from the fire and from burns andscalding by steam or gases. The outer surface shall bewater-resistant;

.1.2 boots and gloves of rubber or other electrically non-con-ductive material;

.1.3 a rigid helmet providing effective protection against im-pact;

.1.4 an electric safety lamp (hand lantern) of an approvedtype with a minimum burning period of 3 h; and

.1.5 an axe.

.2 A breathing apparatus of an approved type which maybe either

.2.1 a smoke helmet or smoke mask which shall be providedwith a suitable air pump and a length of air hose suffi-cient to reach from the open deck, well clear of hatch ordoorway, to any part of the holds or machinery spaces.If, in order to comply with this subparagraph, an air hoseexceeding 36 m in length would be necessary, a self-contained breathing apparatus shall be substituted orprovided in addition as determined by the Administra-tion; or

.2.2 a self-contained compressed-air-operated breathing ap-paratus, the volume of air contained in the cylinders ofwhich shall be at least 1,200 l, or other self-containedbreathing apparatus which shall be capable of function-ing for at least 30 min. A number of spare charges, suit-able for use with the apparatus provided, shall beavailable on board.

Guidance note:Smoke helmet or smoke mask in accordance with alternative .2.1will normally not be accepted.


.3 For each breathing apparatus, a fireproof lifeline of suf-ficient length and strength shall be provided capable ofbeing attached by means of a snaphook to the harnessof the apparatus or to a separate belt in order to preventthe breathing apparatus becoming detached when thelifeline is operated.

(HSC Code 7.10.3)

DNV HSLC rules Pt.4 Ch.10 - Fire Safety

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Transcript of DNV HSLC rules Pt.4 Ch.10 - Fire Safety