SIST EN 45545-2:2020

Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behavior of materials and components

This part of EN 45545 specifies the reaction to fire performance requirements for materials and products used on railway vehicles as defined in EN 45545-1.
The operation and design categories defined in EN 45545-1 are used to establish hazard levels that are used as the basis of a classification system.
For each hazard level, this part specifies the test methods, test conditions and reaction to fire performance requirements.
It is not within the scope of this European Standard to describe measures that ensure the preservation of the vehicles in the event of a fire.

Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 2: Anforderungen an das Brandverhalten von Materialien und Komponenten

Dieser Teil der EN 45545 legt die Brandschutzanforderungen an Werkstoffe und Komponenten für Schienen¬fahrzeuge nach EN 45545 1 fest.
Die Betriebs- und Bauartklassen nach EN 45545 1 werden verwendet, um die Gefährdungsstufen (en: Hazard Level; HL) zu ermitteln, nach denen sich die Anforderungen des Klassifizierungssystems orientieren.
Für jede Gefährdungsstufe legt dieser Teil die Prüfmethoden, Prüfbedingungen und die Anforderungen an das Brandverhalten fest.
Maßnahmen, die die Erhaltung der Fahrzeuge im Brandfall sicherstellen, gehören nicht zum Anwendungsbe¬reich dieser Europäischen Norm.

Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires - Partie 2: Exigences du comportement au feu des matériaux et des composants

Cette partie de l’EN 45545 spécifie les exigences de performance de réaction au feu pour les matériaux et produits utilisés à bord de véhicules ferroviaires telles que définies dans l’EN 45545-1.
Les catégories d’exploitation et de conception définies dans l’EN 45545-1 sont utilisées pour établir les niveaux de risque servant de base au système de classification.
Pour chaque niveau de risque, cette partie spécifie les méthodes d’essai, les conditions d’essai, et les exigences de performance de réaction au feu.
Il n’est pas dans le champ d’application de la présente Norme européenne de décrire les mesures de protection des véhicules lors d’un incendie.

Železniške naprave - Požarna zaščita na železniških vozilih - 2. del: Zahteve za obnašanje materialov in sestavnih delov v požaru

General Information

• Status: Published
• Public Enquiry End Date: 26-Dec-2018
• Publication Date: 13-Aug-2020
• ICS: 13.220.20 - Fire protection
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Aug-2020
• Due Date: 18-Oct-2020
• Completion Date: 14-Aug-2020
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Directive: TP071 - Pravilnik o tehnični skladnosti tirnih vozil
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: EN 45545-2:2020 - Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behavior of materials and components

RELATIONS

• Revised: SIST EN 45545-2:2013+A1:2015 - Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behaviour of materials and components
• Effective Date: 17-Jan-2018
• Replaces: SIST EN 45545-2:2013+A1:2015 - Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behaviour of materials and components
• Effective Date: 12-Aug-2020

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 45545-2:2020
01-oktober-2020
Nadomešča:
SIST EN 45545-2:2013+A1:2015
Železniške naprave - Požarna zaščita na železniških vozilih - 2. del: Zahteve za
obnašanje materialov in sestavnih delov v požaru

Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire

behavior of materials and components

Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 2: Anforderungen an das

Brandverhalten von Materialien und Komponenten

Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires

- Partie 2: Exigences du comportement au feu des matériaux et des composants
Ta slovenski standard je istoveten z: EN 45545-2:2020
ICS:
13.220.20 Požarna zaščita Fire protection
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN 45545-2:2020 en,fr,de

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

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SIST EN 45545-2:2020
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SIST EN 45545-2:2020
EN 45545-2
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2020
EUROPÄISCHE NORM
ICS 13.220.20; 45.060.01 Supersedes EN 45545-2:2013+A1:2015
English Version
Railway applications - Fire protection on railway vehicles -
Part 2: Requirements for fire behavior of materials and
components

Applications ferroviaires - Protection contre les Bahnanwendungen - Brandschutz in

incendies dans les véhicules ferroviaires - Partie 2: Schienenfahrzeugen - Teil 2: Anforderungen an das

Exigences du comportement au feu des matériaux et Brandverhalten von Materialien und Komponenten

des composants
This European Standard was approved by CEN on 22 June 2020.

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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 45545-2:2020 E

worldwide for CEN national Members.
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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
Contents Page

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

Introduction .................................................................................................................................................................... 8

1 Scope .................................................................................................................................................................... 9

2 Normative references .................................................................................................................................... 9

3 Terms and definitions ................................................................................................................................ 10

4 Requirements ................................................................................................................................................ 11

4.1 Essential fire safety objectives ................................................................................................................ 11

4.2 General ............................................................................................................................................................. 11

4.3 Grouping rules ............................................................................................................................................... 13

4.4 Listed products ............................................................................................................................................. 15

4.5 Non-listed products ..................................................................................................................................... 21

4.6 Refurbishment and maintenance requirements .............................................................................. 22

4.7 Products to be approved on functional necessity ............................................................................ 23

4.8 Set of material requirements ................................................................................................................... 23

5 Test properties .............................................................................................................................................. 31

5.1 Summary of test methods.......................................................................................................................... 31

5.2 Modifications on test methods used in 5.1 .......................................................................................... 36

5.3 Testing rules .................................................................................................................................................. 37

6 Evaluation of conformity ........................................................................................................................... 39

Annex A (normative) Protocol for test specimen preparation in standard tests............................... 40

A.1 Protocol for specimen preparation for tests according to EN ISO 5659-2 and

ISO 5660-1 ...................................................................................................................................................... 40

A.2 Protocol for specimen preparation of upholstered furniture assembled products for

tests according to EN ISO 5659-2 and ISO 5660-1 ............................................................................ 40

A.3 Protocol for test specimen preparation for flame spread testing .............................................. 41

Annex B (informative) Product classification guidance .............................................................................. 42

B.1 Introduction ................................................................................................................................................... 42

B.2 Multiple product classification ............................................................................................................... 42

B.3 Test requirement set grouped for multiple product classifications ......................................... 43

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

Requirements of Directive (EU) 2016/797 aimed to be covered ............................................... 47

Bibliography ................................................................................................................................................................. 49

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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
European foreword

This document (EN 45545-2:2020) has been prepared by Technical Committee CEN/TC 256 “Railway

applications”, the secretariat of which is held by DIN.

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 2021, and conflicting national standards shall

be withdrawn at the latest by February 2021.

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 45545-2:2013+A1:2015.

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.

The main changes from EN 45545-2:2013+A1:2015 are:
— integration of the new test standards:
— deletion of Annexes A and B and reference to EN 16989;
— now, EN 16989 is given in Clause 2, Normative references;
— in Table 2, EN 16989 appears for F1 product;
— in Table 5, modification of R18 requirement to be in accordance with EN 16989;
— in Table 5, adding of footnote d to be in accordance with EN 16989;
— deletion of Annex C and reference to EN 17084;
— now, EN 17084 is given in Clause 2, Normative references;

— in Table 5, EN 17084 is now the reference instead of EN ISO 5659-2 : 50 kWm- for the

parameter CIT ;
— in Clause 2, Normative references, new standards appear:
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SIST EN 45545-2:2020
EN 45545-2:2020 (E)

— EN 16989, Railway applications — Fire protection on railway vehicles — Fire behaviour test

for a complete seat;

— EN 17084, Railway applications — Fire protection on railway vehicles — Toxicity test of

materials and components;

— EN 60695-1-40, Fire hazard testing — Part 1-40: Guidance for assessing the fire hazard of

electrotechnical products — Insulating liquids (IEC 60695-1-40);
— and standards were deleted:
— EN 60584-1, Thermocouples — Part 1: Reference tables;

— EN ISO 6507-3, Metallic materials — Vickers hardness test — Part 3: Calibration of reference

blocks (ISO 6507-3);

— ISO/TR 9705-2, Reaction-to-fire tests — Full-scale room tests for surface products — Part 2:

Technical background and guidance;
— ISO 11054, Cutting tools — Designation of high-speed steel groups;

— ISO 19702, Toxicity testing of fire effluents — Guidance for analysis of gases and vapours in

fire effluents using FTIR gas analysis;

— NF X70-100-1, Fire tests — Analysis of gaseous effluents — Part 1: methods for analysing gases

stemming from thermal degradation;

— NF X70-100-2, Fire tests — Analysis of gaseous effluents — Part 2: tubular furnace thermal

degradation method;
— in Clause 3, Terms and definitions, adding of :

— 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
— some initial changes based on the return of experience:

— 4.2.a, adding of « laminated glass where the internal organic layers are not exposed and the

percentage mass of organic material is less than or equal to 6 %. »;
— 4.2.e, modification « a product, other than an electric cable:

— meeting a requirement at two different thicknesses with identical formulation and density

(of each layer), shall be considered to comply with the requirement at all intermediate

thicknesses. A product meeting a requirement at the maximum testable thickness shall be

considered to comply with the requirement at greater thicknesses;

— meeting a requirement at two different densities, shall be considered to comply with the

requirement at all intermediate densities. The material with a differing density shall have

identical formulation and thickness. »;
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EN 45545-2:2020 (E)

— 4.2.g, adding of « or with substrates representative of the end use condition in accordance with

5.3 »;
— 4.2.h, adding of two new bullet points:

— the technical cabinet contains only mechanical or low power electrical equipment. The

cabinet sheets are closed and made of aluminium, steel or glass. The enclosed volume

is ≤ 0,1 m . Covered openings (e.g. by connectors or switches) are acceptable;

— the technical cabinet sheet material is made of aluminium or steel and the enclosed volume

is ≤ 0,5 m . For any individual surface of the cabinet, the total area of all openings in that

surface shall be less than 1/1000 of the nominal surface area;

— 4.2.j, modification « for organic coatings applied to non-metallic surfaces, the full specified test

requirements of chapters 4.3 till 4.5 are mandatory; »

— 4.2.k, modification « for organic coatings applied to products conforming to 4.2 a), ISO 5658-2 or

EN ISO 9239-1 flame spread tests shall be carried out, but other test requirements such as heat

release, smoke emission and toxic gas emission tests are not required if the nominal coating

thickness, including any surfacing filler for exterior products is < 0,3 mm, or for interior products

the nominal thickness of organic coating is < 0,15 mm; »
— 4.3 : modifications:
4.3.1 General

Products compliant to Table 2 or Table 3 are excluded from the grouping assessment.

No requirements apply to products with a combustible mass of ≤ 10g in touching contact only

with a product compliant to Table 2 and Table 3.

To assess products within the grouping rules the following parameters have to be considered.

Products shall be assessed within the grouping rules if:
— the exposed area of each product is ≤ 0,2 m ; and

— the combustible mass of each product is > 10 g or they are in touching contact with another

unclassified combustible product; and

— the horizontal distance is ≤ 20 mm and the vertical distance is ≤ 200 mm to a combustible

product not assessed to Table 2, Table 3 or R24 according to rule 2; and

— they are not fully separated by a product compliant with the fire integrity requirement of

5.3.7.

The combustible masses of the products in this group shall be summed. The assessment process

described in 4.3.2 to 4.3.4 is visualized in the flow chart in Figure 1.
4.3.2 Rule 1
If the total combustible mass of the grouped products is
— ≤ 100 g for interior grouped products;
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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
— ≤ 400 g for exterior grouped products;
no requirements apply to the products of this group.

This principle also applies to single products that meet the requirements of 4.3.1.

4.3.3 Rule 2

If the total combustible mass of the grouped products exceeds the limits stated in Rule 1, but

— ≤ 500 g for interior grouped products;
— ≤ 2000 g for exterior grouped products;
one combustible product of this group has to be tested according to R24.

If this product is compliant to R24 it shall not be considered for further assessment of this group.

The remaining products in this group shall be assessed starting with 4.3.1 again.

This principle also applies to single products that exceed the mass limits of Rule 1.

4.3.4 Rule 3

If the combustible mass of the grouped products exceed the limits stated in Rule 2, one product

of the group shall be tested according to the requirements of non-listed products given in 4.5,

Table 3.

If this product is compliant to the requirements of Table 3 it shall not be considered for further

assessment of this group. The remaining products in this group shall be assessed starting with

4.3.1.

This principle also applies to single products that exceed the mass limits of Rule 2;

— the flow chart given in Figure 1 is modified to be consistent with the text of 4.3;

— 4.4: listed products is now containing 28 requirements;

— in Table 5, requirement R27 is new and applied for EX13 products (new category defined in Table 2);

— in Table 5, requirement R28 is new and applied with 5.3.1.2;
— in Table 5, new requirement is given for EL9 products : R24 or R25 or R26;

— in Table 2, EL10 products are now named « low power electro technical and electronic products »;

— in Table 5, add of footnotes b, c and d;
— adding of a note below Table 5 to introduce new Annex B;

— in Table 6, modification of standards references as explained in Clause 2, Normative references, in

particular :
— in Table 6, modification of T06.01 to be in accordance with EN 16989;
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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
— in Table 6, add of T06.02 to be in accordance with EN 16989;
— in Table 6, add of T06.03 to be in accordance with EN 16989;
— in Table 6, modification of T11.01 to be in accordance with EN 17084;
— in Table 6, modification of T11.02 to be in accordance with EN 17084;
— in Table 6, modification of T12 to be in accordance with EN 17084;
— 5.2.2 modification to be in accordance with EN 16989;
— 5.3.2 modification of the paragraph;
— 5.3.3 adding of this paragraph;
— 5.3.4 adding of this paragraph;
— Annex A is the previous Annex D;
— Annex B is new and presents a product classification guidance;
— editorial changes due to the revision:
— Introduction;
— European Foreword;
— Annex ZA;
— Bibliography.

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 Directive (EU) 2016/797.

For relationship with Directive (EU) 2016/797, see informative Annex ZA, which is an integral part of

this document.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: 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 the United

Kingdom.
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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
Introduction

EN 45545-2 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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SIST EN 45545-2:2020
EN 45545-2:2020 (E)
1 Scope

This document specifies the reaction to fire performance requirements for materials and products used

on railway vehicles as defined in EN 45545-1.

The operation and design categories defined in EN 45545-1 are used to establish hazard levels that are

used as the basis of a classification system.

For each hazard level, this part specifies the test methods, test conditions and reaction to fire

performance requirements.

It is not within the scope of this document to describe measures that ensure the preservation of the

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 13238:2010, Reaction to fire tests for building products - Conditioning procedures and general rules for

selection of substrates

EN 13501-1:2018, Fire classification of construction products and building elements - Part 1: Classification

using data from reaction to fire tests

EN 16989:2018, Railway applications - Fire protection on railway vehicles - Fire behaviour test for a

complete seat

EN 17084:2018, Railway applications - Fire protection on railway vehicles - Toxicity test of materials and

components

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

EN 45545-3:2013, Railway applications - Fire protection on railway vehicles - Part 3: Fire resistance

requirements for fire barriers

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 50264:2008 (series), Railway applications — Railway rolling stock power and control cables having

special fire performance

EN 50305:2002, Railway applications - Railway rolling stock cables having special fire performance - Test

methods

EN 50306:2002 (series), Railway applications — Railway rolling stock cables having special fire

performance

EN 50382:2008 (series), Railway applications — Railway rolling stock high temperature power cables

having special fire performance

EN 60332-1-2:2004, Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for

vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame

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SIST EN 45545-2:2020
EN 45545-2:2020 (E)

EN IEC 60332-3-24:2018, Tests on electric and optical fibre cables under fire conditions — Part 3-24: Test

for vertical flame spread of vertically-mounted bunched wires or cables — Category C (IEC 60332-3-24)

EN 60695-1-40:2014, Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of

electrotechnical products - Insulating liquids

EN 60695-2-11:2014, Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire

flammability test method for end-products (GWEPT) (IEC 60695-2-11:2014)

EN 60695-11-10:2013, Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame

test methods (IEC 60695-11-10:2013)

EN 61034-1:2005, Measurement of smoke density of cables burning under defined conditions - Part 1: Test

apparatus (IEC 61034-1:2005)

EN 61034-2:2005, Measurement of smoke density of cables burning under defined conditions - Part 2: Test

procedure and requirements (IEC 61034-2:2005)

EN ISO 1182:2010, Reaction to fire tests for products - Non-combustibility test (ISO 1182:2010)

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

(calorific value) (ISO 1716:2018)

EN ISO 4589-2:2017, Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-

temperature test (ISO 4589-2:2017)

EN ISO 5659-2:2017, Plastics - Smoke generation - Part 2: Determination of optical density by a single-

chamber test (ISO 5659-2:2017)

EN ISO 9239-1:2010, Reaction to fire tests for floorings - Part 1: Determination of the burning behaviour

using a radiant heat source (ISO 9239-1:2010)

EN ISO 11925-2:2010, Reaction to fire tests - Ignitability of products subjected to direct impingement of

flame - Part 2: Single-flame source test (ISO 11925-2:2010)

EN ISO 12952-2:2010, Textiles - Assessment of the ignitability of bedding items - Part 2: Ignition source:

match-flame equivalent (ISO 12952-2:2010)

ISO 5658-2:2006, Reaction to fire tests — Spread of flame — Part 2: Lateral spread on building and

transport products in vertical configuration

ISO 5660-1:2015, Reaction-to-fire tests — Heat release, smoke production and mass loss rate — Part 1:

Heat release rate (cone calorimeter method) and smoke production rate (dynamic measurement)

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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EN 45545-2:2020 (E)
4 Requirements
4.1 Essential fire safety objectives

The design of rolling stock and the products used shall have the objective of limiting fire development

should an ignition event occur so that an acceptable level of safety is achieved.

If the objectives defined in Clause 4 of EN 45545-1:2013 are met, then there can be a high probability that

in the event of a fire, passengers and staff will be able to escape from the fire unaided and be able to reach

a place of safety.

Hazard levels (HL1 to HL3) have been determined using the relation between operation categories and

design categories defined in EN 45545-1, as described in Table 1. Hazard levels are used in Table 5 for

Material Fire Safety requirement classification.
Table 1 — Hazard level classification
Operation Design category
category
N: A: D: S:
Standard vehicles Vehicles forming part Double decked Sleeping and
of an automatic train vehicle couchette vehicles
having no emergency
trained staff on board
1 HL1 HL1 HL1 HL2
2 HL2 HL2 HL2 HL2
3 HL2 HL2 HL2 HL3
4 HL3 HL3 HL3 HL3
4.2 General
The following principles are applicable to all products:

a) products which comply with the highest level of reaction to fire performance and therefore need no

further testing are:
— products classified A1 according to EN 13501-1;
— all products described in commission decision 96/603/EC (as amended);

— laminated glass where the internal organic layers are not exposed and the percentage mass of

organic material is less than or equal to 6 %.

b) products classified A2 – s1, d0 according to EN 13501-1 are considered compliant with regard to

flame spread, heat release and smoke emission requirements only. The toxic emissions limit shall

satisfy the requirements of R1 HL3 (CIT < 0,75);

c) electrical cables which satisfy the fire safety requirements of EN 50306, EN 50264 or EN 50382 are

considered to satisfy the requirements of R15 and R16 for the corresponding hazard level (no further

testing required);

d) electric cables meeting a requirement at two different diameters with identical formulations shall be

considered to comply with the requirement at all intermediate diameters;
e) a product, other than an electric cable:
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EN 45545-2:2020 (E)

— meeting a requirement at two different thicknesses with identical formulation and density (of

each layer), shall be considered to comply with the requirement at all intermediate thicknesses.

A product meeting a requirement at the maximum testable thickness shall be considered to

comply with the requirement at greater thicknesses;

— meeting a requirement at two different densities, shall be considered to comply with the

requirement at all intermediate densities. The material with a differing density shall have

identical formulation and thickness.

f) a test which qualifies any product or surface shall also qualify any product or surface which differs

in colour and/or pattern;

g) multi-layer products shall be tested in the end use condition or with substrates representative of the

end use condition in accordance with 5.3;

h) mechanical or electrical products contained in a technical cabinet do not need to be assessed if:

— the technical cabinet satisfies the requirements of integrity criterion E10, based on the

definitions described in EN 45545-1 and EN 45545-3 and the enclosed volume is ≤ 2 m ;

— or the technical cabinet satisfies the requirements of integrity criterion E15 and insulation

criterion I15 for surfaces adjacent to passenger area and staff area and integrity criterion E15

for other surfaces, based on the definitions described in EN 45545-1 with no volume limitations;

— or the technical cabinet is protected by an automatic fire detection and fire extinguishing system;

— or the technical cabinet contains only mechanical or low power electrical equipment. The cabinet

sheets are closed and made of aluminium, steel or glass. The enclosed volume is ≤ 0,1 m .

Covered openings (e.g. by connectors or switches) are acceptable;

— or the technical cabinet sheet material is made of aluminium or steel and the enclosed volume

is ≤ 0,5 m . For any individual surface of the cabinet, the total area of all openings in that surface

shall be less than 1/1000 of the nominal surface area;

i) all coating systems shall be tested in the end use condition. This means inclusion of levelling fillers

at a thickness estimated for the mean end use application, primers and finish coatings with the

specified coating thicknesses and number of layers;

j) for organic coatings applied to non-metallic surfaces, the full specified test requirements of chapters

4.3 till 4.5 are mandatory;

k) for organic coatings applied to products conforming to 4.2 a), ISO 5658-2 or EN ISO 9239-1 flame

spread tests shall be carried out, but other test requirements such as heat release, smoke emission

and toxic gas emission tests are not required if the nominal coating thickness, including any surfacing

filler for exterior products is < 0,3 mm, or for interior
...