kSIST FprEN 45545-4:2023

SLOVENSKI STANDARD
oSIST prEN 45545-4:2022
01-april-2022
Železniške naprave - Požarna zaščita na železniških vozilih - 4. del: Zahteve
požarne varnosti za konstrukcijo železniških vozil
Railway applications - Fire protection on railway vehicles - Part 4: Fire safety
requirements for rolling stock design
Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 4:
Brandschutzanforderungen an die konstruktive Gestaltung von Schienenfahrzeugen
Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires
- Partie 4: Exigences de sécurité incendie pour la conception des véhicules ferroviaires
Ta slovenski standard je istoveten z: prEN 45545-4
ICS:
13.220.20 Požarna zaščita Fire protection
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 45545-4:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 45545-4:2022


DRAFT
EUROPEAN STANDARD
prEN 45545-4
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2022
ICS 13.220.20; 45.060.01 Will supersede EN 45545-4:2013
English Version

Railway applications - Fire protection on railway vehicles -
Part 4: Fire safety requirements for rolling stock design
Applications ferroviaires - Protection contre les Bahnanwendungen - Brandschutz in
incendies dans les véhicules ferroviaires - Partie 4: Schienenfahrzeugen - Teil 4:
Exigences de sécurité incendie pour la conception des Brandschutzanforderungen an die konstruktive
véhicules ferroviaires Gestaltung von Schienenfahrzeugen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 45545-4:2022 E
worldwide for CEN national Members.

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prEN 45545-4:2022 (E)
Contents
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Fire protection measures . 6
4.1 General. 6
4.2 Minimizing the risk of a fire starting . 6
4.2.1 General preventive measures . 6
4.2.2 Catering and cooking areas . 7
4.2.3 Luggage storage inside passenger areas . 7
4.2.4 Visibility in passenger areas . 7
4.2.5 Litter bins, ash trays and refuse containers . 8
4.3 Evacuation and escape . 8
4.3.1 Passenger emergency exits . 8
4.3.2 Evacuation measures . 9
4.3.3 Escape measures . 10
4.3.4 Functions of systems for running capability . 11
4.3.5 Emergency signs . 12
4.3.6 Emergency lighting . 12
5 Evaluation of conformity . 12
Annex A (informative) Design guidance . 13
A.1 General preventive measures . 13
A.2 General design features . 13
A.3 Seats . 13
A.4 Air conditioning and ventilation systems . 14
A.5 Heaters . 14
A.6 Protection against sparks . 14
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive (EU) 2016/797 aimed to be covered . 15

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European foreword
This document (prEN 45545-4:2022) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 45545-4:2013.
The main changes from EN 45545-4:2013 are:
— New requirements on 4.2.3;
— Suppression of 4.2.6;
— New requirements on 4.3.2.1;
— New requirements on 4.3.3.1;
— Addition of 4.3.5 and 4.3.6.
This series of European Standards Railway applications — Fire protection on railway vehicles consists of:
— Part 1: General;
— Part 2: Requirements for fire behaviour of materials and components;
— Part 3: Fire resistance requirements for fire barriers;
— Part 4: Fire safety requirements for railway rolling stock design;
— Part 5: Fire safety requirements for electrical equipment including that of trolley buses, track guided
buses and magnetic levitation vehicles;
— Part 6: Fire control and management systems;
— Part 7: Fire safety requirements for flammable liquid and flammable gas installations.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
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Introduction
EN 45545-4 has been developed from existing fire safety regulations for railway vehicles from the
International Union of Railways (UIC) and different European countries.
In using the operation and design categories defined in EN 45545-1:2013, the requirements laid down in
this part take into account the current operating conditions for European public rail transport.
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1 Scope
This document specifies fire safety requirements for railway vehicle design to cover the objectives
defined in EN 45545-1:2013.
The measures and requirements specified in this document aim to protect passengers and staff in railway
vehicles in the event of a fire on board by minimizing the risk of a fire starting, delaying the fire
development and controlling the spread of fire products through the railway vehicle, thus aiding
evacuation.
It is not within the scope of this document to describe measures which ensure the preservation of the
railway vehicles in the event of a fire.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13272-1:2019, Railway applications - Electrical lighting for rolling stock in public transport systems -
Part 1: Heavy rail
EN 13272-2:2019, Railway applications - Electrical lighting for rolling stock in public transport systems -
Part 2: Urban rail
EN 14752:2019, Railway applications - Bodyside entrance systems for rolling stock
EN 15663:2017+A1:2018, Railway applications - Vehicle reference masses
EN 45545-1:2013, Railway applications - Fire protection on railway vehicles - Part 1: General
EN 45545-2:2020, Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire
behavior of materials and components
EN 45545-3:2013, Railway applications - Fire protection on railway vehicles - Part 3: Fire resistance
requirements for fire barriers
EN 45545-4:2013, Railway applications - Fire protection on railway vehicles - Part 4: Fire safety
requirements for rolling stock design
EN 45545-5:2013+A1:2015, Railway applications - Fire protection on railway vehicles - Part 5: Fire safety
requirements for electrical equipment including that of trolley buses, track guided buses and magnetic
levitation vehicles
EN 45545-6:2013, Railway applications - Fire protection on railway vehicles - Part 6: Fire control and
management systems
EN 45545-7:2013, Railway applications - Fire protection on railway vehicles - Part 7: Fire safety
requirements for flammable liquid and flammable gas installations
EN 50553:2012, Railway applications - Requirements for running capability in case of fire on board of
1),
rolling stock

1)
This document is impacted by AC:2013, A1:2016 and A2:2020.
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EN ISO 13943:2017, Fire safety - Vocabulary (ISO 13943:2017)
ISO 3864-1:2011, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety
signs and safety markings
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 45545-1:2013 and
EN ISO 13943:2017 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Fire protection measures
4.1 General
In consideration of the wide range of possible interior layouts for rail vehicles it is only possible to specify
a limited number of normative requirements to control the risks of fires starting accidentally or
deliberately and to then control the risks of such fires spreading. Informative guidance is therefore set
out in Annex A to provide accepted good practice and design aspects to be considered.
NOTE Requirements for smoke containment are covered in part 6.
4.2 Minimizing the risk of a fire starting
4.2.1 General preventive measures
Access shall be denied to all areas not intended for passenger use. These shall include, where applicable,
but are not limited to:
— drivers’ cabs;
— staff areas, for example staff offices, compartments, catering and cooking areas;
— luggage compartments;
— areas behind ceiling hatches or access panels;
— the interior of technical cabinets (including engine compartments);
— the interior of underfloor equipment cases.
Unauthorised areas shall be locked or otherwise secured. Locking devices shall take into account
requirements for evacuation as set out in 4.3.
The surface temperature of equipment or equipment enclosures in passenger, staff and luggage areas
shall not exceed 60 °C under normal conditions with the exception of catering or cooking equipment (see
4.2.2).
Typical examples of equipment acting as local sources of heat in passenger, staff and luggage areas are
heating unit enclosures, lighting diffusers and/or lighting enclosures. This requirement should not be
applied to equipment in technical areas, for example engine compartments.
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The design of railway vehicles shall limit the risk of fires starting or developing by application of the
measures in this document and the other parts of the EN 45545 series, and in addition by consideration
of:
— the vehicle layout and shape of the vehicle and/or the layout and shape of elements of the vehicle;
— the potential for the build-up of combustible materials for example litter, oil or grease;
— requirements for cleaning;
— the potential for misuse and/or vandalism.
Guidance is set out in Annex A.
4.2.2 Catering and cooking areas
Cooking and catering appliances shall be installed so that the transfer of heat to adjacent surfaces and
equipment is limited. The temperature of adjacent surfaces and equipment shall not exceed 60 °C.
Exposed surfaces of cooking and catering equipment except where required for the equipment’s function
shall not exceed 60 °C.
Gas installations shall comply with the requirements of EN 45545-7:2013.
Cooking and catering equipment should be designed so that railway vehicle movements do not produce
a fire hazard due, for example to:
— spillage of flammable liquids onto hot surfaces; or
— by spillage leading to an accumulation of combustible waste over time.
4.2.3 Luggage storage inside passenger areas
Objects placed on overhead luggage racks shall be visible from below.
Luggage stacks shall not be used in Operation Category 4 vehicles.
Intermediate levels of luggage stacks should be completely closed.
Luggage stacks installed on the lower decks of a double deck vehicle and where evacuation of the upper
deck requires descent to the lower deck shall be:
— enclosed by partitions or panelling, except where access is required for loading or unloading, that
provides at least the fire resistance equivalent to a fire barrier with an E15 rating set out in
EN 45545-3:2013 (see 5.6.4, Table 2);
or
— protected by fixed fire fighting equipment installed in accordance with EN
...