EN 13501-6:2018+A1:2022

SLOVENSKI STANDARD
01-marec-2023
Požarna klasifikacija gradbenih proizvodov in elementov stavb - 6. del:
Klasifikacija po podatkih iz preskusov odziva na ogenj na električnih, krmilnih in
komunikacijskih kablih (vključno z dopolnilom A1)
Fire classification of construction products and building elements - Part 6: Classification
using data from reaction to fire tests on power, control and communication cables
Klassifizierung von Bauprodukten und Bauarten zu ihrem Brandverhalten - Teil 6:
Klassifizierung mit den Ergebnissen aus den Prüfungen zum Brandverhalten von
Starkstromkabeln und -leitungen, Steuer- und Kommunikationskabeln
Classement au feu des produits et éléments de construction - Partie 6 : Classement à
partir des données d’essais de réaction au feu sur câbles de puissance, de commande
et de communication
Ta slovenski standard je istoveten z: EN 13501-6:2018+A1:2022
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13501-6:2018+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 13.220.50; 29.060.20 Supersedes EN 13501-6:2018
English Version
Fire classification of construction products and building
elements - Part 6: Classification using data from reaction
to fire tests on power, control and communication cables
Classement au feu des produits et éléments de Klassifizierung von Bauprodukten und Bauarten zu
construction - Partie 6 : Classement à partir des ihrem Brandverhalten - Teil 6: Klassifizierung mit den
données d'essais de réaction au feu sur câbles de Ergebnissen aus den Prüfungen zum Brandverhalten
puissance, de commande et de communication von Starkstromkabeln und -leitungen, Steuer- und
Kommunikationskabeln
This European Standard was approved by CEN on 9 November 2018 and includes Amendment 1 approved by CEN on 4
December 2022.
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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13501-6:2018+A1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols . 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviations . 11
4 Classes of reaction to fire performance . 11
5 Test methods . 11
5.1 General . 11
5.2 Heat of combustion test (EN ISO 1716) . 12
5.3 Vertical flame spread of single cable (EN 60332-1-2) . 12
5.4 Burning behaviour and smoke production of bunched cable – (EN 50399) . 12
5.5 Smoke production of burning cable (EN 61034-2) . 12
5.6 Acidity of gases produced by burning cables (EN 60754-2) . 12
6 Principles for specimen preparation . 12
7 Number of tests for classification . 12
7.1 Minimum number of tests . 12
7.2 Additional tests . 13
7.3 Criteria for classification . 13
7.4 Continuous parameters . 13
7.5 Discontinuous parameters . 13
8 Testing of electric cables (see Table 1) . 14
8.1 Class E , F . 14
ca ca
8.2 Classes D , C , B2 . 14
ca ca ca
8.3 Class B1 . 14
ca
8.4 Class A . 14
ca
8.5 Additional classifications s1, s2, s3 for smoke production . 14
8.6 Additional classifications s1a, s1b for smoke production . 14
8.7 Additional classifications d0, d1, d2 for flaming droplets/particles . 14
8.8 Additional classifications a1, a2, a3 for acidity . 14
9 Classification criteria for electric cables (see Table 1) . 15
9.1 General . 15
9.2 Class F . 15
ca
9.3 Class Eca . 15
............................................................................................................................................................ 15
9.4 Class Dca
9.5 Class C . 16
ca
9.6 Class B2 . 16
ca
9.7 Class B1 . 16
ca
9.8 Class A . 17
ca
9.9 Additional classifications s1, s1a, s1b, s2, s3 for smoke production . 17
9.10 Additional classifications d0, d1, d2 for flaming droplets and/or particles . 18
9.11 Additional classifications a1, a2, a3 for acidity . 18
10 Presentation of classification . 18
11 Field of application of the classification . 21
12 Classification report . 21
12.1 General . 21
12.2 Content and format . 21
Annex A (normative) Reaction to fire classification report for electric cables . 24
A.1 Introduction. 24
A.2 Details of classified product. 25
A.3 Reports and results in support of this classification . 25
A.4 Classification and field of application . 26
A.5 Limitations . 27
Annex B (informative) Background information as regards the reaction to fire performance
of cables . 28
B.1 General . 28
B.2 Assumptions . 28
B.3 Reference scenario and fire situations for cables . 28
Bibliography . 31

European foreword
This document (EN 13501-6:2018+A1:2022) has been prepared by Technical Committee CEN/TC 127
“Fire safety in buildings”, the secretariat of which is held by BSI.
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 June 2023, and conflicting national standards shall be
withdrawn at the latest by September 2024.
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 13501-6:2018".
This document includes Amendment 1 approved by CEN on 4 December 2022.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
CEN, CENELEC and EOTA committees preparing technical specifications for electric cables falling under
the Construction Product Regulation (305/2011), which contain performance requirements against
reaction to fire tests, should make reference to the reaction to fire classification given in this European
Standard and not refer directly to any specific fire test method.
This document has been prepared in cooperation with CLC/TC 20 “Electric cables”, CLC/TC 46X
“Communication cables” and CLC/TC 86A “Optical fibre cables”.
EN 13501, Fire classification of construction products and building elements consists of the following
parts:
— Part 1: Classification using data from reaction to fire tests;
— Part 2: Classification using data from fire resistance tests, excluding ventilation services;
— Part 3: Classification using data from fire resistance tests on products and elements used in building
service installations: fire resisting ducts and fire dampers;
— Part 4: Classification using data from fire resistance tests on components of smoke control systems;
— Part 5: Classification using data from external fire exposure to roofs tests;
— Part 6: Classification using data from reaction to fire tests on power, control and communication
cables.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Introduction
The aim of this European Standard is to define a harmonized procedure for the classification of reaction
to fire of power, control and communication cables and hybrid cables. This classification is based on the
test procedures listed in Clause 5.
This European Standard has been prepared in support of the second essential requirement in the
EC Construction Products Regulation (CPR) (EU) N°305/2011 and as detailed in the Interpretative
Document Number 2: Safety in case of fire (OJ C62 Vol. 37).
Background information on the Commission Decision regarding the classification of the reaction to fire
performance of electric cables is given in Annex B.
There is a procedure by which certain products can be assigned a particular fire classification without
the need for testing. Such products have well established reaction to fire performance and have been
agreed by the Standing Committee on Construction. Agreements relating to such products which may be
‘classified without further testing’ (CWFT) are published in the Official Journal of the EC.
Part 1 of this European Standard covers classification resulting from reaction to fire tests for products
other than electric cables.
Parts 2, 3 and 4 of this European Standard are concerned with classification resulting from fire
resistance tests.
Part 5 covers classification resulting from tests for external fire exposure to roofs.
1 Scope
This document provides the reaction to fire classification procedure for electric cables.
NOTE For the purpose of this document, the term “electric cables” covers all power, control and
communication cables, including optical fibre cables.
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 50399, Common test methods for cables under fire conditions — Heat release and smoke production
measurement on cables during flame spread test — Test apparatus, procedures, results
EN 50575, Power, control and communication cables — Cables for general applications in construction
works subject to reaction to fire requirements
!EN 50576", Electric cables — Extended application of test results for reaction to fire
!EN 60332-1-2, 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 (IEC
60332-1-2)"
EN 60754-2, Test on gases evolved during combustion of materials from cables — Part 2: Determination
of acidity (by pH measurement) and conductivity (IEC 60754-2)
EN 61034-2, Measurement of smoke density of cables burning under defined conditions — Part 2: Test
procedure and requirements (IEC 61034-2)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
product
material, element or component about which information is required, in the context of this standard,
the product is an electric cable about which information is required
3.1.2
material
single basic substance or uniformly dispersed mixture of substances
3.1.3
external component
external layer of the cable, i.e. the sheath
3.1.4
end use application
real application of a product, in relation to all aspects that influence the behaviour of that product under
different fire situations
Note 1 to entry: It covers aspects such as its quantity, orientation, position in relation to other adjacent
products, and its method of fixing.
3.1.5
fire performance
response of a material, product or assembly in a fire
Note 1 to entry: It is often important to understand how materials, products or assemblies behave in real fires
as opposed to in fire tests under controlled conditions. Improved fire performance can be exhibited in a variety of
ways. For example, longer times to ignition, lower heat release, lower flame spread or lower smoke release could
all be evidence of improvements in fire performance.
Note 2 to entry: Compare with the term fire behaviour.
[SOURCE: EN ISO 13943:2017, 3.137]
3.1.6
reaction to fire
response of a test specimen when it is exposed to fire under specified conditions in a fire test
[SOURCE: EN ISO 13943:2017, 3.324]
3.1.7
fire scenario
qualitative description of the course of a fire with respect to time, identifying key events that
characterize the studied fire and differentiate it from other possible fires
Note 1 to entry: See fire scenario cluster and representative fire scenario.
Note 2 to entry: It typically defines the ignition and fire growth processes, the fully developed fire stage, the fire
decay stage, and the environment and systems that will impact on the course of the fire.
Note 3 to entry: Unlike deterministic fire analysis, where fire scenarios are individually selected and used as
design fire scenario, in fire risk assessment, fire scenarios are used as representative fire scenarios within fire
scenario clusters.
[SOURCE: EN ISO 13943:2017, 3.152]
3.1.8
reference scenario
hazard situation used as a reference for a given test method or classification system
3.1.9
fire situation
stage in the development of a fire, characterised by the nature, severity and size of the thermal attack on
the products involved
3.1.10
combustion
exothermic reaction of a substance with an oxidizing agent
Note 1 to entry: Combustion generally emits fire effluent accompanied by flames and/or glowing.
[SOURCE: EN ISO 13943:2017, 3.55]
3.1.11
heat of combustion
thermal energy produced by combustion of unit of mass of a given substance
[SOURCE: EN ISO 13943:2017, 3.203]
Note 1 to entry: It is expressed in kilojoules per gram.
3.1.12
gross heat of combustion (PCS)
heat of combustion of a substance when the combustion is complete and any produced water is entirely
condensed under specified conditions
[SOURCE: EN ISO 13943:2017, 3.198]
3.1.13
net heat of combustion (PCI)
heat of combustion when any water produced is considered to be in the gaseous form
Note 1 to entry: The net heat of combustion is always smaller than the gross heat of combustion because the heat
released by the condensation of water vapour is not included.
−1
Note 2 to entry: The typical unit is kJ⋅g .
[SOURCE: EN ISO 13943:2017, 3.280]
3.1.14
contribution to fire
energy released by a product influencing the fire growth both in pre- and post-flashover situations
3.1.15
heat release
thermal energy produced by combustion
Note 1 to entry: The typical unit is J.
[SOURCE: EN ISO 13943:2017, 3.205]
3.1.16
vertical flame spread (FS)
damaged length of the sample, as measured in the EN 50399 test
3.1.17
vertical flame spread (H)
distance from the upper onset of charring (above the flame application point) to the lower onset of
charring (below the flame application point) as measured in the EN 60332-1-2 test
3.1.18
fully developed fire
state of total involvement of combustible materials in a fire
[SOURCE: EN ISO 13943:2017, 3.192]
3.1.19
flashover
transition to a state of total surface involvement in a fire of combustible materials within an enclosure
[SOURCE: EN ISO 13943:2017, 3.184]
3.1.20
flaming droplets/particles
material separating from the specimen during the fire test and continuing to flame for a minimum
period as described by the test method
[SOURCE: EN 50399:2011, 3.7]
3.1.21
FIGRA
fire growth rate index used for classification purposes for the classes B1 , B2 , C and D
ca ca ca ca
Note 1 to entry: For the classification of cables, FIGRA means the maximum of the quotient of heat release rate
from the specimen, excluding the contribution of ignition source, and the time of its occurrence using a THR
threshold of 0,4 MJ and an HRR threshold of 3 kW.
Note 2 to entry: The FIGRA for cables is defined in more detail in EN 50399.
3.1.22
direct field of application
outcome of a process (involving the application of defined rules) whereby a test result is deemed to be
equally valid for variations in one or more of the product properties and/or intended end use
applications
3.1.23
extended field of application
outcome of a process (involving the application of defined rules that may incorporate calculation
procedures) that, in the context of this standard, attributes for a cable family, a test result on the basis of
one or more test results to the same test standard
3.1.24
extended application result
predicted result for performance parameter obtained following the process of extended field of
application
3.1.25
extended application report
document reporting extended application results, including all details of the process leading to those
results
3.2 Symbols and abbreviations
The symbols and notations correspond to those given in the appropriate test method.
NOTE If different, the definition of symbol in the delegated Regulation (EU) 2016/364 of 1st July 2015 is
given between brackets.
FIGRA fire growth rate index used for classification purposes [W/s] (Fire growth rate)
PCS gross heat of combustion [MJ/kg] (Gross calorific potential)
THR total heat release (HRR ) from test start until end of test, excluding contribution from
1200s sm30
ignition source [MJ]
TSP total smoke production (SPR ) from test start until end of test [m ]
1200s sm60
Peak HRR = HRR = maximum value of heat release, excluding the burner output, determined
during the whole burner application time, averaged over 30 s expressed in [kW]
(Maximum of HRRsm30 between test start and end of test excluded contribution from
ignition source)
Peak SPR = SPR = maximum value of smoke production, determined during the whole burner
application time, averaged over 60 s, expressed in [m /s] (maximum SPR sm60 between
test start and end of test)
FS vertical flame spread [m] equals the damaged length of the sample
H vertical flame spread [mm] as defined in 3.1.17
m’ mean value of the set of results of a continuous parameter determined in accordance with
the relevant test method using the minimum number of tests as specified in the test
method
m mean value of the set of results of a continuous parameter determined in accordance with
the procedure in 7.4 and used for classification
4 Classes of reaction to fire performance
The classes with their corresponding fire performance are given in Table 1.
Products classified in a given class are deemed to satisfy all the requirements of any lower class.
The main classification can only be obtained by undertaking the tests for a particular product or
product family. Some additional classification can be obtained without testing (e.g. a3).
5 Test methods
5.1 General
The following test methods are specified in relation to the envisaged reaction to fire classification. The
relevant classification parameters are given in Table 1.
5.2 Heat of combustion test (EN ISO 1716)
This test determines the potential maximum total heat release of a product when completely burning,
regardless of its end use.
.
The test is relevant for the class Aca
It allows the determination of both the gross heat of combustion (PCS) and the net heat of combustion
(PCI).
5.3 Vertical flame spread of single cable (EN 60332-1-2)
This test evaluates the flame spread of a single cable under exposure to a small flame. The test is
relevant for the classes B1 , B2 , C , D E and F .
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5.4 Burning behaviour and smoke production of bunched cable – (EN 50399)
!For smoke production, the test is relevant for B1 , B2 , C and D in association with the
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additional classification s."
This test evaluates the potential contribution of a cable, installed with other cables, to the development
of a fire, under direct exposure to a flame source.
, using a 30 kW flame source and special mounting requirements.
The test is relevant for the class B1ca
The test is relevant for the classes B2 , C and D , using a 20,5 kW flame source.
ca ca ca
!deleted text"
5.5 Smoke production of burning cable (EN 61034-2)
This test evaluates the potential contribution of a cable to obscuration of vision when burning under
static air conditions. The test is relevant for the classes B1 , B2 , C and D , in association with the
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additional classification s1.
5.6 Acidity of gases produced by burning cables (EN 60754-2)
This test evaluates the potential contribution of burning cable materials to produce acidic gases. The
test is relevant for the classes B1 , B2 , C and D in association with the additional classification a.
ca ca ca ca
6 Principles for specimen preparation
Before testing, product specimens shall be prepared and conditioned and, where relevant, mounted in
accordance with the relevant test methods.
Cables tested according to EN 50399 are mounted on a cable ladder. The number of cables, their
spacing and other mounting details vary according to the cable diameter as described in EN 50399. It
should be noted that cables applying for class D , C or B2 are all mounted in a similar way while for
ca ca ca
cables applying for B1 there is an additional requirement that a non-combustible calcium silicate
ca
board is mounted at the back of the cable ladder. Details are given in EN 50399.
7 Number of tests for classification
7.1 Minimum number of tests
The minimum number of tests given in the appropriate test method is as follows:
a) the number of tests used for classification against EN 50399 is one;
!b) the number of tests for every non-metallic c
...