EN ISO 9094:2017

SLOVENSKI STANDARD
01-oktober-2017
1DGRPHãþD
SIST EN ISO 9094:2016
0DODSORYLOD3RåDUQD]DãþLWD,62
Small craft - Fire protection (ISO 9094:2015)
Kleine Wasserfahrzeuge - Brandschutz (ISO 9094:2015)
Petits navires - Protection contre l'incendie (ISO 9094:2015)
Ta slovenski standard je istoveten z: EN ISO 9094:2017
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
47.080 ýROQL Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9094
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 9094:2015
English Version
Small craft - Fire protection (ISO 9094:2015)
Petits navires - Protection contre l'incendie (ISO Kleine Wasserfahrzeuge - Brandschutz (ISO
9094:2015) 9094:2015)
This European Standard was approved by CEN on 16 July 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9094:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU . 4

European foreword
The text of ISO 9094:2015 has been prepared by Technical Committee ISO/TC 188 “Small craft” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 9094:2017.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2018, and conflicting national standards
shall be withdrawn at the latest by February 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 9094:2015.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 9094:2015 has been approved by CEN as EN ISO 9094:2017 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide one means of conforming to Essential
Requirements of the New Approach Directive 2013/53/EU.
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the normative
clauses of this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a
presumption of conformity with the relevant Essential Requirements of that Directive and associated
EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2013/53/EU
Corresponding
annexes/paragraphs of
Clauses/sub-clauses of this
Comments
standard Directive 2013/53/EU
9 I.A.2.5 - Owner’s manual
Annex B
5; 6 I.A.3.8 - Escape In respect of viable means of
escape in the event of fire
only, this standard does not
deal with escape from
inversion.
4.3.1.1; 4.3.2 I.A.5.1.1 – Engine and engine In respect of insulating
compartments, inboard materials and separation from
engine habitable spaces.
4.3.2.3 I.A.5.1.2 - Engine and engine With respect to the
compartments, ventilation requirements for fixed petrol
engines and fixed petrol tanks
only.
4.1.3 I.A.5.2.1 - Fuel system,
General
4.1.3; 4.3.1.2 I.A.5.2.2 - Fuel system, Fuel
tanks
4.4; 4.6 I.A.5.3 - Electrical system In respect of minimizing the
risk of fire and to prevent the
accumulation of explosive
gases which might be emitted
from batteries.
Ignition-protected items shall
be in accordance with EN
ISO 8846 (EN 28846).
4.5 I.A.5.5 - Gas system In respect of liquefied
petroleum gas (LPG) systems
and self-contained appliances.
4; 5; 6 I.A.5.6.1 - Fire protection – The scope of this standard
general defines a practical degree of
Annex A
fire prevention and protection
intended to provide enough
time for occupants to escape a
fire on board small craft up to
24m length of hull.
The exclusions shall be noted.
7; 8 I.A.5.6.2 – Fire protection - In respect of minimum
Fire-fighting equipment firefighting requirements

according to the type of
engine fuel and power rating,
habitable spaces and
provision of heating and
cooking appliances.
Informative annexes C and D
should be noted.
WARNING - Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.
INTERNATIONAL ISO
STANDARD 9094
First edition
2015-11-15
Small craft — Fire protection
Petits navires — Protection contre l’incendie
Reference number
ISO 9094:2015(E)
©
ISO 2015
ISO 9094:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2015 – All rights reserved

ISO 9094:2015(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Fire prevention . 3
4.1 Cooking and heating appliances . 3
4.1.1 General. 3
4.1.2 Appliances with flues . 4
4.1.3 Permanently installed fuel systems . 4
4.2 Materials near cooking or heating appliances . 4
4.2.1 General. 4
4.2.2 Protection from open flames . 4
4.2.3 Protection from radiated heat devices . 5
4.2.4 Protection from solid fuel appliances . 6
4.2.5 Protection from electrical appliances . 6
4.3 Engine and fuel compartments and exhausts . 6
4.3.1 General requirements not dependent on fuel type . 6
4.3.2 Specific requirements for compartments containing fixed petrol engines
and permanently installed petrol tanks . . 7
4.3.3 Specific requirements for compartments containing portable petrol-
engined equipment and portable petrol tanks or containers . 8
4.4 Electrical installations . 8
4.5 Liquefied petroleum gas (LPG) systems . 8
4.5.1 General. 8
4.5.2 LPG systems not used for propulsion . 8
4.5.3 LPG systems used for propulsion . 8
4.5.4 Self-contained portable appliances . 8
4.6 Ignition protection . 8
4.7 Decklights . 9
5 Fire detection . 9
6 Fire escape . 9
6.1 Fire escape routes . 9
6.1.1 General. 9
6.1.2 Escape routes passing over or beside an engine compartment .10
6.1.3 Escape routes passing over an open flame or radiated heat device .10
6.2 Fire exits .10
6.2.1 General.10
6.2.2 Minimum clear dimensions .10
6.2.3 Positioning fire exits .10
6.2.4 Capability to open fire exits .10
6.2.5 Deck hatches designated as fire exits.11
6.2.6 Water tightness of fire exits .11
7 Fire fighting equipment .11
7.1 Purpose .11
7.2 Protection of habitable spaces containing sleeping bunks .11
7.3 Protection of habitable spaces containing cooking and heating appliances .11
7.4 Protection of engine compartment(s) .12
7.4.1 General.12
7.4.2 Fire ports .12
7.5 Portable fire extinguishers .13
7.5.1 Purpose .13
ISO 9094:2015(E)
7.5.2 General requirements .13
7.5.3 Carbon dioxide (CO ) extinguishers .13
7.5.4 Location and capacity of portable fire extinguishers .14
7.6 Fixed fire extinguishing systems .14
7.6.1 Purpose .14
7.6.2 General requirements .14
7.6.3 Requirements for use of asphyxiant mediums .15
7.6.4 General installation requirements .16
7.6.5 Activation of the system .16
7.7 Fire blanket .17
8 Displayed information .17
8.1 General requirements .17
8.2 Fixed system warning for non-asphyxiant medium .17
8.3 Fixed system warning for asphyxiant medium .18
8.4 CO portable extinguisher .18
8.5 Storage of ladder to escape hatch .18
8.6 Displayed symbol requirements .18
9 Owner’s manual.19
Annex A (normative) Fire test referenced in 4.2.2 .20
Annex B (normative) Information to be provided in the Owner’s manual .21
Annex C (informative) Classification of fires, fire ratings according to EN 3-7 and the
selection of portable fire extinguishers .24
Annex D (informative) Selection of fixed fire extinguishing systems .26
Bibliography .28
iv © ISO 2015 – All rights reserved

ISO 9094:2015(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 88, Small craft.
This first edition of ISO 9094 cancels and replaces ISO 9094-1:2003 and ISO 9094-2:2002.
The major technical changes concern:
— change in definition of “readily accessible” being for “emergency conditions”;
— added definitions and requirements for cooking appliances, solid fuel appliances and heating
appliance installations;
— requirements for cooking and heating appliances using liquid fuel;
— specific requirements addressing compartments containing petrol tanks and containers and
portable petrol driven engines;
— added requirements for fire protection for “domed ” decklights;
— fire detection requirements for craft over 12 m;
— clarification of escape routes for quarter cabin arrangements;
— detailed requirements for access to deck hatches designated as fire exits;
— changes to engine and engine compartment fire extinguishing requirements;
— fixed fire extinguishing systems to be “approved systems”;
— requirement for diesel engine shut down and “shut off dampers”;
— audible alarm requirements required only for protected spaces able to be occupied.
ISO 9094:2015(E)
Introduction
This International Standard covers the prevention of fire and the protection of life in case of fire on
small craft.
It is intended to ensure that the design and layout of the craft and the type of equipment installed
minimize the risk and spread of fire and that every habitable craft is provided with viable means of
escape in the event of fire.
The requirements in this document might not be effective against some battery chemistries (for
example Lithium based products). Battery manufacturers should be consulted for appropriate methods
of fire suppression.
vi © ISO 2015 – All rights reserved

INTERNATIONAL STANDARD ISO 9094:2015(E)
Small craft — Fire protection
1 Scope
This International Standard defines a practical degree of fire prevention and protection intended to
provide enough time for occupants to escape a fire on board small craft.
It applies to all small craft of up to 24 m length of hull (L ) except for personal watercraft.
H
This International Standard excludes:
— the design and installation of those permanently installed galley stoves and heating appliances
(including components used to distribute the heat) using fuels that are liquid at atmospheric
pressure on small craft, which are covered by ISO 14895;
[3]
— carbon monoxide detecting systems, which are covered by ISO 12133 .
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 3-7, Portable fire extinguishers – Part 7: Characteristics, performance requirements and test methods
EN 1869, Fire blankets
IEC 60092-507, Electrical installations in ships — Part 507: Small vessels
ISO 4589-3, Plastics — Determination of burning behaviour by oxygen index — Part 3: Elevated-
temperature test
ISO 5923, Equipment for fire protection and fire fighting — Fire extinguishing media — Carbon dioxide
ISO 7010:2011, Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 7165, Fire fighting-Portable fire extinguishers – Performance and construction
ISO 8846, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases
ISO 10088, Small craft — Permanently installed fuel systems
ISO 10133, Small craft — Electrical systems — Extra-low-voltage d.c. installations
ISO 10239, Small craft — Liquefied petroleum gas (LPG) systems
ISO 10240, Small craft — Owner’s manual
ISO 11105:1997, Small craft — Ventilation of petrol engine and/or petrol tank compartments
ISO 12216, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and
watertightness requirements
ISO 13297, Small craft — Electrical systems — Alternating current installations
ISO 14895, Small craft — Liquid-fuelled galley stoves and heating appliances
ISO 16315, Small craft — Electric propulsion system
ISO 9094:2015(E)
ISO 21487, Small craft — Permanently installed petrol and diesel fuel tanks
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
accessible
capable of being reached for inspection, removal or maintenance without removal of permanent
craft structure
Note 1 to entry: Hatches are not regarded as permanent craft structures in this sense even if tools are needed
to open them.
3.2
readily accessible
capable of being reached quickly and safely for effective use under emergency conditions without
the use of tools
3.3
engine compartment
compartment of the craft, containing main or auxiliary engine(s)
3.4
fixed fire extinguishing system
fire fighting system having all components fixed in position and having automatic activation and/or
manual release from outside of the space protected
Note 1 to entry: In the following text this system is called “a fixed system”.
3.5
fire exit
any door, hatch, or aperture designated as an exit in case of fire and leading either directly or via other
areas of the craft, to the open air
3.6
open flame device
any appliance where direct bodily contact with an exposed open flame is possible during normal operation
3.7
petrol
hydrocarbon fuel or blends thereof which is liquid at atmospheric pressure and is used in spark
ignition engines
Note 1 to entry: In this context, kerosene is not regarded as petrol.
3.8
diesel
hydrocarbon fuel or blends thereof which is liquid at atmospheric pressure and is used in compression
ignition engines
3.9
asphyxiant
any fire extinguishing medium that can dilute or displace oxygen in air, leading to asphyxiation if inhaled
3.10
toxic
any fire extinguishing medium that can be poisonous or harmful if inhaled
2 © ISO 2015 – All rights reserved

ISO 9094:2015(E)
3.11
escape route
way through which a person has to pass to access the nearest exit or fire exit
3.12
habitable space
space surrounded by permanent structure in which there is provision for any of the following activities:
sleeping, cooking, eating, washing/toilet, navigation, steering
Note 1 to entry: Spaces intended exclusively for storage, open cockpits with or without canvas enclosures and
engine rooms are not included.
3.13
enclosed habitable space
habitable space separated from the nearest fire exit by bulkheads and/or solid doors
3.14
radiated heat device
any appliance intended to transfer heat from its surfaces during normal operation by way of radiation
3.15
cooking appliance
appliance intended to be used for the preparation of food and that makes use of a heat source
3.16
solid fuel appliance
heating appliance intended to be fuelled by solid minerals fuel, natural or manufactured wood logs or
pellets, including solidified alcohol
3.17
heating appliance
appliance intended to be used for comfort heating with or without integral heat sources
3.18
decklight
translucent deck fitting providing daytime lighting to inboard spaces by refracting sunlight
Note 1 to entry: These decklights are usually no more than 200 mm diameter.
3.19
shut off damper
air damper or rated fire damper device that closes or reduces air flow at engine space air intakes and/or
exhaust ventilators
3.20
portlight
openable window in the hull of the craft below the sheer line and above the waterline
4 Fire prevention
4.1 Cooking and heating appliances
4.1.1 General
Cooking and heating appliances shall be suitable for use in a marine environment.
When selecting appliances consideration should be given to the size and design of the space into which
the appliance is to be installed and the appliance’s stated heat output.
ISO 9094:2015(E)
Cooking and heating appliances shall be installed in accordance with the manufacturer’s instructions
for small craft installations and secured against accidental or unintended movement. Gimballed
appliances shall include a retaining mechanism that meets this requirement.
4.1.2 Appliances with flues
Where flues and associated flue pipes are installed they shall be:
— installed in accordance to manufacturer’s instructions;
— routed directly to the open air so that no exhaust gases can enter the interior of the craft;
— insulated or shielded in accordance with 4.2.3.1, where necessary to avoid overheating or damage
to adjacent material or to the structure of the craft.
4.1.3 Permanently installed fuel systems
Permanently installed (non-integral) tanks and supply lines using fuel which is liquid at atmospheric
pressure shall meet the applicable requirements of ISO 21487, ISO 14895 and ISO 10088 respectively. In
addition:
— permanently installed fuel tanks shall be installed outside Zone II according to Figure 1;
— filler openings for tanks shall be prominently identified to indicate the type of fuel to be used
with the system;
— unless covered by the design and installation requirements of ISO 14895, a readily accessible shut-off
valve shall be installed in the supply line at the tank connection. If this is outside the space containing
the appliance a second valve shall be fitted in the fuel line in the space containing the appliance,
outside Zone II according to Figure 1, but not behind the appliance. This requirement does not apply
where the tank is located lower than the cooking appliance/heater and there is no possibility of back
siphoning or where a fire or fusible valve that prevents fuel from continuing to flow to an appliance
in the event of a fire is installed in the appliance or near to the final fuel supply joint to it.
4.2 Materials near cooking or heating appliances
4.2.1 General
4.2.2 to 4.2.4 address the potential for the ignition of materials adjacent to cooking and heating appliances.
Materials and finishes used in the vicinity of open flame devices within the ranges as defined in Figure 1
shall comply with 4.2.2, taking into account the movement of the burner up to a heel angle of 20° for
monohull sailboats or 10° for multihulls and monohull motorboats, where gimballed stoves are fitted.
These requirements do not apply to the materials of the appliance itself.
4.2.2 Protection from open flames
4.2.2.1 Free hanging curtains or other fabrics adjacent to open flame devices shall not be fitted in Zone
I and Zone II according to Figure 1.
4.2.2.2 Exposed materials adjacent to open flame devices installed in Zone I and Zone II shall not
support combustion and accordingly shall have an oxygen index (OI) of at least 21 according to ISO 4589-
3 at an ambient temperature of 60°C, or be tested as meeting an equivalent standard. They shall be
thermally insulated from the supporting structure to prevent combustion of the supporting structure, if
the surface temperature exceeds 80°C during the fire test described in Annex A.
Thermal insulation may be achieved by an air gap or the use of a suitable material.
4 © ISO 2015 – All rights reserved

ISO 9094:2015(E)
Dimensions in millimetres
Key
1 Zone I
2 Zone II
3 Limit of zone II for LPG, CNG or electric appliances
4 Limit of zone II for liquid fuel appliances
5 Centre of burner
NOTE Measurements are taken from the centre of the burner
Figure 1 — Areas of special material requirements
4.2.3 Protection from radiated heat devices
4.2.3.1 If their surface temperature can exceed 85°C, combustible materials adjacent to radiated heat
devices and other appliances, whether exposed or covered, shall be thermally insulated to ensure that
the surface temperature of the combustible materials does not exceed 85°C with the appliance operating
at its maximum nominal output.
ISO 9094:2015(E)
4.2.3.2 Thermal insulation may be achieved by an air gap, a radiation shielding surface or the use
of a suitable material. Materials used to shield the combustible surface shall be ceramics, metals, non-
combustible insulation board or other materials with similar fireproof characteristics.
Appliance manufacturer’s instructions may be followed to meet this clause provided the appliance has
[5] [6] [8]
been temperature tested in accordance with EN 12815 , EN 13240 or UL 1100 .
4.2.4 Protection from solid fuel appliances
4.2.4.1 Solid fuel appliances shall stand on and be secured to a hearth, designed and constructed of
suitable robust and non-combustible materials, substantial enough to support the weight of the appliance
and be of appropriate dimensions such that, in normal use, will prevent ignition of floor coverings
through radiated heat or in the event a hot solid fuel falls from the appliance.
Appliance manufacturer’s instructions may be followed to meet this clause provided the appliance has
[5] [6] [8]
been temperature tested in accordance with EN 12815 , EN 13240 or UL 1100 .
4.2.4.2 Combustible fixtures, fittings or furniture other than flooring and its covering shall not be
positioned within the distance from solid fuel appliance specified by the manufacturer or, if no distance
is specified, within 600 mm of the closest point to the appliance.
4.2.4.3 Free-hanging combustible material, such as curtains or blinds adjacent to solid fuel appliance
shall be fitted not less than the minimum distance specified by the manufacturer or, if no distance is
specified, not within 600 mm of the closest point to the appliance and any uninsulated flue pipe.
NOTE Careful consideration needs to be given in the selection of materials in all other parts of habitable
spaces to ensure, as far as practical, that the materials are not readily ignitable and/or have low flame spread
characteristics and do not readily give rise to toxic or explosive hazards at elevated temperatures.
4.2.5 Protection from electrical appliances
4.2.5.1 Free hanging curtains or other fabrics adjacent to electrical cooking hobs shall not be fitted in
Zone I according to Figure 1.
4.2.5.2 Electrical heating appliances shall not be fitted with an element so exposed that clothing,
curtains, or other similar materials can be scorched or set on fire by heat from the element.
4.3 Engine and fuel compartments and exhausts
4.3.1 General requirements not dependent on fuel type
4.3.1.1 Insulation material
Material used for the insulation of engine compartments shall:
— present a non-fuel absorbent surface towards the engine; and
— not support combustion and accordingly shall have an oxygen index (OI) of at least 21 according to
ISO 4589-3 at an ambient temperature of 60°C, or be tested as meeting an equivalent standard
4.3.1.2 Permanently installed fuel tanks
Permanently installed fuel tanks shall be designed and constructed in accordance with the requirements
of ISO 21487 and installed in accordance with ISO 10088.
6 © ISO 2015 – All rights reserved

ISO 9094:2015(E)
4.3.1.3 Bilge cleaning
Bilges and other spaces that can contain spillage of petrol and diesel shall be accessible for cleaning and
shall have a non-fuel absorbent floor surface.
4.3.1.4 Checking of exhaust water injection
Where a non-metallic component or flexible hose is part of a water-cooled exhaust system a means to
indicate a loss of cooling water shall be provided to prevent failure of the component or flexible hose.
The means shall be obvious from the steering position.
NOTE A temperature or flow alarm may suffice.
Where the engine manufacturer makes specific system recommendations or with installations of
engine systems that include all the exhaust components through the terminus where the exhaust gases
are discharged, the manufacturer’s recommendations shall be followed.
4.3.2 Specific requirements for compartments containing fixed petrol engines and
permanently installed petrol tanks
4.3.2.1 General
Compartments or spaces containing fixed petrol engines and/or fixed petrol tanks shall be separated
from habitable spaces. This is met where the structure fulfils the following requirements:
a) the boundaries are continuously sealed (e.g. welded, brazed, glued, laminated or otherwise sealed);
b) penetrations for cables, piping etc. are closed by fittings, seals and/or sealants;
c) access openings such as doors, hatches, etc. are equipped with fittings so they can be secured to
minimize the flow of gas or vapours in the closed position.
The effectiveness of the boundary joints or sealing may be demonstrated either by documentation or
visual inspection.
4.3.2.2 Ignition protection
All electrical equipment shall be ignition protected as specified in 4.6.
4.3.2.3 Ventilation
Compartments or spaces containing fixed petrol engines and fixed petrol tanks shall meet the
ventilation requirements of ISO 11105.
4.3.2.4 Insulation of permanently installed petrol tanks from heat sources
Petrol tanks shall be insulated from the engine or other source of heat by either:
a) a physical barrier between tank and engine, engine-mounted components including fuel and water
supply lines, and any source of heat (e.g. bulkhead, wall, insulating material etc.), or
b) an air gap to prevent any contact between the tank and engine, engine-mounted components, and any
source of heat, the gap being wide enough to allow for servicing the engine and related components.
Any air gap shall be at least:
— 100 mm between a petrol engine and a fuel tank;
— 250 mm between a dry exhaust and a fuel tank.
ISO 9094:2015(E)
4.3.3 Specific requirements for compartments containing portable petrol-engined equipment
and portable petrol tanks or containers
Compartments or spaces designed to contain portable petrol-engine equipment, tanks and containers
shall meet the requirements of 4.3.1.3, 4.3.2.1 and 4.3.2.2; and meet Clause 5 of ISO 11105:1997.
Spaces used for the storage of outboard motors and portable generators with integral petrol tanks and
’garage’ spaces containing personal watercraft are included in this requirement.
4.4 Electrical installations
The requirements for electrical systems to minimize the risk of fire and to prevent the accumulation of
explosive gases which might be emitted from batteries are set out in the following ISO standards:
— direct current electrical installations operating at not more than DC 50V shall be in accordance
with ISO 10133;
— single phase electrical operating at not more than AC 250V shall be in accordance with ISO 13297;
— three phase electrical systems operating at not more than AC 500V shall be in accordance with EN
IEC 60092-507;
— electric propulsion systems shall be in accordance with ISO 16315.
NOTE Battery types common in electric propulsion might require specialized extinguishing medium.
4.5 Liquefied petroleum gas (LPG) systems
4.5.1 General
LPG appliances shall not be installed in engine compartments unless this location is in accordance with
the manufacturer’s recommendations for installation in small craft.
Clearance between dry exhaust components or equivalent heat sources and LPG cylinders, pressure
regulators and safety devices shall be at least 250 mm, unless an equivalent thermal barrier is provided.
4.5.2 LPG systems not used for propulsion
LPG systems shall be in accordance with ISO 10239.
4.5.3 LPG systems used for propulsion
[7]
LPG propulsion systems shall be installed to conform to a suitable standard, for example EN 15609 .
4.5.4 Self-contained portable appliances
Self-contained portable appliances having LPG cylinders or containers attached shall be stored in
accordance with the LPG cylinder storage requirements of ISO 10239.
4.6 Ignition protection
Only ignition-protected items in accordance with ISO 8846 shall be installed in compartments, lockers
or housings that contain:
— petrol engines;
— petrol fuel tanks;
— petrol fuel line fittings;
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