Fire classification of construction products and building elements. Classification using data from external fire exposure to roofs tests

EN 13501-6:2014
Fire classification of construction products and building elements-Part 6: Classification using data from reaction to fire tests on electric cables

EUROPEAN STANDARD NORME EUROPEENNE EUROPAlSCHE norm
ICS 13.220.50; 29.060.20
English Version
Fire classification of construction products and building elements- Part 6: Classification using data from reaction to fire tests onelectric cables
Classement au feu des produits et elements de construction Klassifizierung von Bauprodukten und Bauarten zu ihrem
- Partie 6: Classement reaction au feu sur cables electriques aus den PrOfungen zum Brandverhalten von elektrischen
Kabeln
This European Standard was approved by CEN on 20 December 2013.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

Contents Page
Foreword 4
Introduction 5
1 Scope 6
2 Normative references 6
3 Terms, definitions and symbols 6
3.1 Terms and definitions 6
3.2 Symbols and abbreviations 9
4 Classes of reaction to fire performance 9
5 Test methods 10
5.1 General 10
5.2 Heat of combustion test (EN ISO 1716) 10
5.3 Vertical flame spread of single cable (EN 60332-1-2) 10
5.4 Burning behaviour and smoke production of bunched cable - (EN 50399) 10
5.5 Smoke production of burning cable (EN 61034-2) 10
5.6 Acidity of gases produced by burning cables (EN 50267-2-3) 10
6 Principles for specimen preparation 10
7 Number of tests for classification 11
7.1 Minimum number of tests 11
7.2 Additional tests 11
7.3 Criteria for classification 11
7.4 Continuous parameters 11
7.5 Discontinuous parameters 11
8 Testing of electric cables (see Table 1) 12
8.1 Class E ca 12
8.2 Classes D ca , C ca , B2 ca 12
8.3 Class B1 ca 12
8.4 Class A ca 12
8.5 Additional classifications s1, s2, s3 for smoke production 12
8.6 Additional classifications s1a, s1b for smoke production 12
8.7 Additional classifications dO, d1, d2 for flaming droplets/particles 12
8.8 Additional classifications a1, a2, a3 for acidity 12
9 Classification criteria for electric cables (see Table 1) 13
9.1 General 13
9.2 Class F ca 13
9.3 Class E ca 13
9.4 Class D ca 13
9.5 Class C ca 14
9.6 Class B2 ca 14
9.7 Class B1 ca 14
9.8 Class A ca 15
9.9 Additional classifications s1, s1a, s1b, s2, s3 for smoke production 15
9.9.1 General 15
9.9.2 Additional classification s1 15
9.9.3 Additional classification s1a 15
9.9.4 Additional classification s1b 15
9.9.5 Additional classification s2 15
9.9.6 Additional classification s3 15
9.10 Additional classifications dO, d1, d2 for flaming droplets and/or particles 16
9.11 Additional classifications a1, a2, a3 for acidity 16
10 Presentation of classification 16
11 Field of application of the classification 18
12 Classification report 19
12.1 General 19
12.2 Content and format 19
Annex A (normative) Reaction to fire classification report for electric cables 22
A.1 Introduction 22
A.2 Details of classified product 22
A.2.1 General 22
A.2.2 Product description 23
A.3 Reports and results in support of this classification 23
A.3.1 Reports 23
A.3.2 Results 23
A.4 Classification and field of application 24
A.4.1 Reference of classification 24
A.4.2 Classification 24
A.4.3 Field of application 24
A.5 Limitations 24
Annex B.1 General 26
B.2 Assumptions 26
B.3 Reference scenario and fire situations for cables 26
Bibliography 29Foreword
This document (EN 13501-6:2014) has been prepared by Technical Committee CEN/TC 127 “Fire safety in buildings”, the secretariat of which is held by BSL
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 September 2014, and conflicting national standards shall be withdrawn at the latest by September 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
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) CEN, CENELEC and EOTA committees preparing technical specifications, 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 electric cables.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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 electric 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 (EU) 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 and are listed on the Nando- CPD database on the EC website ( http://europa.eu.int/comm/enterprise/construction) .
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 European Standard provides the reaction to fire classification procedure for electric cables.
NOTE For the purpose of this European Standard the term “electric cables” covers all power, control and communication cables, including optical fibre cables.
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 50267-2-3, Common test methods for cables under fire conditions — Tests on gases evolved during combustion of material from cables — Part 2-3: Procedures - Determination of degree of acidity of gases for cables by determination of the weighted average of pH and conductivity
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
prEN 50575, Power, control and communication cables — Cables for general applications in construction works subject to reaction to fire requirements
CLC/FprTS 50576, Electric cables, extended application of test results
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 (IEC 60332-1-2:2004)
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