Railway applications - Fire protection on railway vehicles - Part 3: Fire resistance requirements for fire barriers

This part of EN 45545 specifies the fire resistance requirements and testing methods for fire barriers for railway vehicles.
The objective of the measures and requirements, specified in this part of EN 45545, is to protect passengers and staff in railway vehicles in the event of a developing fire on board.
Use of a Fire Containment and Control System, where permitted as an alternative to a fire barrier, is not in the scope of this part of EN 45545. It is not within the scope of this part of EN 45545 to describe measures that ensure the preservation of the railway vehicles in the event of a fire.

Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 3: Feuerwiderstand von Feuerschutzabschlüssen

Dieses Dokument legt die Feuerwiderstände und Prüfverfahren für Feuerschutzabschlüsse von Schienenfahrzeugen fest.
Der Zweck der Maßnahmen und Anforderungen, die in diesem Dokument festgelegt sind, ist es, Fahrgäste und Personal in Schienenfahrzeugen im Falle, dass sich im Fahrzeug ein Brand entwickelt, zu schützen.
Die Verwendung eines Systems zur Eindämmung und Bekämpfung von Bränden, wo es als Alternative zu Feuerschutzabschlüssen zulässig ist, gehört nicht zum Anwendungsbereich dieses Dokuments. Maßnahmen, die die Erhaltung der Fahrzeuge im Brandfall sicherstellen, gehören nicht zum Anwendungs-bereich dieses Dokuments.

Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires - Partie 3: Exigences de résistance au feu des barrières au feu

Le présent document spécifie les exigences de résistance au feu ainsi que les méthodes d'essai applicables aux barrières au feu des véhicules ferroviaires.
Les mesures et exigences spécifiées dans le présent document ont pour objectif d'assurer la protection des voyageurs et du personnel de bord dans les véhicules ferroviaires en cas de développement d'un incendie à bord.
Le présent document ne couvre pas l'utilisation d'un système de lutte et de contrôle des incendies lorsqu'il est autorisé comme solution alternative à une barrière coupe-feu. Le présent document n'a pas vocation à décrire les mesures de protection des véhicules ferroviaires en cas d'incendie.

Železniške naprave - Požarna zaščita na železniških vozilih - 3. del: Zahteve za požarno odpornost požarnih pregrad

General Information

Status
Not Published
Public Enquiry End Date
28-Feb-2022
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
16-Dec-2021
Due Date
05-May-2022
Completion Date
03-Mar-2022

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SLOVENSKI STANDARD
oSIST prEN 45545-3:2022
01-februar-2022
Železniške naprave - Požarna zaščita na železniških vozilih - 3. del: Zahteve za
požarno odpornost požarnih pregrad

Railway applications - Fire protection on railway vehicles - Part 3: Fire resistance

requirements for fire barriers

Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 3: Feuerwiderstand von

Feuerschutzabschlüssen

Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires

- Partie 3: Exigences de résistance au feu des barrières au feu
Ta slovenski standard je istoveten z: prEN 45545-3
ICS:
13.220.20 Požarna zaščita Fire protection
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 45545-3:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 45545-3:2022
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oSIST prEN 45545-3:2022
DRAFT
EUROPEAN STANDARD
prEN 45545-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 13.220.20; 45.060.01 Will supersede EN 45545-3:2013
English Version
Railway applications - Fire protection on railway vehicles -
Part 3: Fire resistance requirements for fire barriers

Applications ferroviaires - Protection contre les Bahnanwendungen - Brandschutz in

incendies dans les véhicules ferroviaires - Partie 3: Schienenfahrzeugen - Teil 3: Feuerwiderstand von

Exigences de résistance au feu des barrières au feu Feuerschutzabschlüssen

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 45545-3:2021 E

worldwide for CEN national Members.
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oSIST prEN 45545-3:2022
prEN 45545-3:2021 (E)
Contents

European foreword ....................................................................................................................................... 3

Introduction ..................................................................................................................................................... 4

1 Scope ..................................................................................................................................................... 5

2 Normative references ..................................................................................................................... 5

3 Terms and definitions .................................................................................................................... 5

4 Application of fire barriers........................................................................................................... 6

5 Classification, requirements and test procedures ............................................................... 6

5.1 General requirements .................................................................................................................... 6

5.2 Classification of fire barriers ....................................................................................................... 6

5.3 Arc barrier Type A ........................................................................................................................... 6

5.4 Arc barrier Type B ........................................................................................................................... 6

5.5 Requirements .................................................................................................................................... 6

5.6 Standard fire resistance tests .................................................................................................... 11

5.6.1 General............................................................................................................................................... 11

5.6.2 Doors .................................................................................................................................................. 11

5.6.3 Non-standard fire resistance tests .......................................................................................... 11

5.6.4 Conventional classified products ............................................................................................. 11

6 Evaluation of conformity ............................................................................................................. 12

Annex A (normative) Requirements for mounting and fixing of test specimens................. 13

A.1 General............................................................................................................................................... 13

A.2 Terms and definitions .................................................................................................................. 13

A.3 Product parameters and end-use application parameters ............................................ 13

A.4 Restraint and boundary conditions ........................................................................................ 14

A.5 Size of test specimen ..................................................................................................................... 14

A.6 Number of test specimens .......................................................................................................... 14

A.7 Construction of test specimens and verification ................................................................ 14

A.8 Installation of test specimen ...................................................................................................... 15

A.9 Conditioning of test specimen ................................................................................................... 15

A.10 Joint construction .......................................................................................................................... 15

Annex B (informative) Figures relating to Clause 5 ....................................................................... 16

B.1 Locations of fire barriers (example 1) ................................................................................... 16

B.2 Locations of fire barriers (example 2) ................................................................................... 16

B.3 Locations of fire barriers (example 3) ................................................................................... 17

B.4 Locations of fire barriers (example 4) ................................................................................... 19

B.5 Locations of fire barriers (example 5) ................................................................................... 20

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive (EU) 2016/797 aimed to be covered .......................... 21

Bibliography .................................................................................................................................................. 22

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prEN 45545-3:2021 (E)
European foreword

This document (prEN 45545-3:2021) 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 45545-3:2013.

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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prEN 45545-3:2021 (E)
Introduction

EN 45545-3 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, the requirements laid down in

this part take into account the current operating conditions for European public rail transport.

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oSIST prEN 45545-3:2022
prEN 45545-3:2021 (E)
1 Scope

This document specifies the fire resistance requirements and testing methods for fire barriers for

railway vehicles.

The objective of the measures and requirements, specified in this document, is to protect passengers

and staff in railway vehicles in the event of a developing fire on board.

Use of a Fire Containment and Control System, where permitted as an alternative to a fire barrier, is

not in the scope of this document. It is not within the scope of this document to describe measures that

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 1363-1:2020, Fire resistance tests - Part 1: General requirements

EN 1364-1:2015, Fire resistance tests for non-loadbearing elements - Part 1: Walls

EN 1364-2:2018, Fire resistance tests for non-loadbearing elements - Part 2: Ceilings

EN 1634-1:2014+A1:2018, Fire resistance and smoke control tests for door and shutter assemblies,

openable windows and elements of building hardware - Part 1: Fire resistance test for door and shutter

assemblies and openable windows

EN 13501-2:2016, Fire classification of construction products and building elements - Part 2:

Classification using data from fire resistance tests, excluding ventilation services

EN 45545-1:2013, Railway applications - Fire protection on railway vehicles - Part 1: General

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 ISO 1182:2020, Reaction to fire tests for products - Non-combustibility test (ISO 1182:2020)

EN ISO 1716:2018, Reaction to fire tests for products - Determination of the gross heat of combustion

(calorific value) (ISO 1716:2018)
EN ISO 13943:2017, Fire safety - Vocabulary (ISO 13943:2017)

ISO 834-1:1999+A1:2012, Fire-resistance tests — Elements of building construction — Part 1: General

requirements
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 45545-1:2013 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
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prEN 45545-3:2021 (E)
4 Application of fire barriers

Railway vehicles shall be equipped with fire barriers at the locations specified in Table 1.

5 Classification, requirements and test procedures
5.1 General requirements

The use of the following parameters shall be in accordance with the principles described in

EN 13501-2 integrity criterion E, insulation criterion I and radiation criterion W.

5.2 Classification of fire barriers
Fire barriers shall have fire resistance properties verified by:
— a fire resistance test based on the principles of EN 1363-1; or
— assessment based on fire resistance testing.

Fire barriers shall have performance based on the three parameters (E, W, I) as specified in Table 1.

NOTE For example E30, I15, means integrity is maintained for 30 min and insulation is maintained for

15 min.
5.3 Arc barrier Type A

Type A arc barriers in accordance with EN 45545-5 shall satisfy the requirements for an E15 fire

barrier.
5.4 Arc barrier Type B

Type B arc barriers in accordance with EN 45545-5 shall satisfy the requirements for an E60 fire

barrier.
5.5 Requirements

The requirements for fire barriers depend upon the operation and design categories and their location

in the railway vehicle.

The fire barriers shall be located as specified in Table 1. Examples of the barriers in Table 1 are

described in Annex B.

All vertical fire barriers in the cross section of a railway vehicle shall cover the entire area between the

structural floor and the structural roof. In this context, the middle floor of a double decked vehicle shall

be considered as a floor for the upper deck and as a roof for the lower deck. Where a vertical barrier

reaches the side wall, it shall be extended to the body shell.

Closing devices for ventilation ducts shall conform to the following requirements:

a) where a ventilation duct passes through a fire barrier, the duct shall have a closing device where

it passes through the barrier unless the complete duct meets the same level of fire resistance

requirements as the barrier for:
— its entire length,

— its length to the next fire barrier, the next closing device, or to the exterior of the vehicle.

b) closing devices shall meet the same fire resistance requirements as fire barriers;

c) closing devices shall operate on reaction to a fire.
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prEN 45545-3:2021 (E)

Penetrations through fire barriers, for example for ducts or cables, shall not reduce the fire resistance

of the barrier.
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oSIST prEN 45545-3:2022
prEN 45545-3:2021 (E)
Table 1 — Fire barrier requirements
No Fire origin Protected location Remarks Operation Requirements
category

1 Underfloor technical Passenger and staff area Tested in accordance with EN 1364-2. 1, 2 and 4 E15

cabinet containing electrical including driver’s cab
Requirements are defined from underfloor to 3 E15, I15
high power components
the top of the floor covering.
(other than brake and
heating resistors and cables
between joints) and lithium
ion batteries for traction or
auxiliary supply

2 Underfloor traction Passenger and staff area Tested in accordance with EN 1364-2. 1 and 2 E15

transformers, reactors and including driver’s cab
3 and 4 E15, I15
For vehicles without underfloor side skirts:
cooling components filled
Whole cross section and 1 m longer than the
with insulation fluid
object in each longitudinal direction.
For vehicles with underfloor side skirts: the
section with underfloor side skirts shall meet
the requirement.
Requirements are defined from underfloor to
the top of the floor covering.

3 Underfloor combustion Passenger and staff area Tested in accordance with EN 1364-2. 1 and 2 E15

engine or fuel cells including driver’s cab
3 and 4 E15, I15
For vehicles without underfloor side skirts:
(including heating
Whole cross section and 1 m longer than the
equipment, fuel tank and
object in each longitudinal direction.
pipe work)
For vehicles with underfloor side skirts: the
section with underfloor side skirts shall meet
the requirement.
Requirements are defined from underfloor to
the top of the floor covering.

4 Underfloor area not covered Passenger and staff area None 1 to 4 No requirement

by positions 1-3 including driver’s cab
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oSIST prEN 45545-3:2022
prEN 45545-3:2021 (E)
No Fire origin Protected location Remarks Operation Requirements
category
5 On the roof of carbody Passenger and staff area None 1 to 4 No requirement
including driver's cab

6 Passenger area Adjacent passenger or staff Tested in accordance with EN 1364-1 (walls). 1, 2, 4 No requirements

area excluded driver cabs
The full cross section shall be tested with all 3
E15 for the full cross
elements positioned as they would be present
section.
in an actual railway vehicle.
Elements shall be
located at a distance
not exceeding 30 m
...

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