EN 50576:2022
(Main)Electric cables - Extended application of test results for reaction to fire
Electric cables - Extended application of test results for reaction to fire
This document describes the procedure and rules for extended application of results of tests carried out according to the test methods described in EN 50399, EN 60332 1 2 and EN 61034 2. The EXAP rules described apply to EN 50399 test results used for classification according to EN 13501 6 in classes B2ca, Cca and Dca, additional smoke production classes s1, s2 and s3 and flaming droplets/particles, to EN 60332 1 2 test results used for classification in classes B2ca, Cca, Dca and Eca and to EN 61034 2 test results used for classification in classes s1a and s1b. No EXAP procedure and rules have been developed in respect to the results of tests carried out according to the test method described in EN 60754 2. As the parameters (pH and conductivity) for each cable in a family are determined based upon calculation using material test results, this is considered as a matter of direct application. Material test results taken from any one sample of finished cable from a family are sufficient to calculate the parameters for each cable in the family. Cables with a diameter of 5,0 mm or less are expected to be tested as bundles according to EN 50399. Cables with a diameter of less than or equal to 5,0 mm are included in the specific and general EXAP rules for single core unsheathed power cables only. The rules apply to circular and non-circular cables provided that they fall within the scope of the relevant test method. A specific EXAP rule has been developed for any of the types of electric cable families as defined in this document. A general EXAP rule has been developed for all electric cable families unless otherwise stated elsewhere in this document. NOTE 1 Multicore power cables are sometimes referred to as control cables with a rated voltage but for the purposes of this document are considered as power cables. For multipair, multitriple and multiquad control cables, either the general EXAP rule or the specific EXAP rule for power cables or the specific EXAP rule for communication cables can be applied. The use of the specific EXAP rule gives benefit in the lower number of cables to be tested for a range of cable constructions (product family). An EXAP is only possible when cables belong to a family as defined in this document. NOTE 2 For the purposes of this document, the term "electric cables" also covers optical fibre cables.
Kabel und Leitungen - Erweiterte Anwendung von Prüfergebnissen bezüglich Brandverhalten
Dieses Dokument enthält das Verfahren und die Regeln für die erweiterte Anwendung von Ergebnissen aus Prüfungen, die nach den in EN 50399, EN 60332-1-2 und EN 61034-2 beschriebenen Prüfverfahren durchgeführt wurden. Die hierin beschriebenen EXAP-Regeln gelten für nach EN 50399 erhaltene Prüfergebnisse für die Einstufung nach EN 13501-6 in die Klassen B2ca, Cca und Dca sowie die zusätzlichen für die Rauchentwicklung geltenden Klassen s1, s2 und s3 und brennendes Abtropfen/Abfallen, für nach EN 60332-1-2 erhaltene Prüfergebnisse für die Einstufung in die Klassen B2ca, Cca, Dca und Eca und für nach EN 61034-2 erhaltene Prüfergebnisse für die Einstufung in die Klassen s1a und s1b. Es wurden weder EXAP-Verfahren noch -Regeln in Bezug auf die Ergebnisse aus Prüfungen entwickelt, die nach der in EN 60754-2 beschriebenen Prüfmethode durchgeführt werden. Da die Parameter (pH-Wert und Leitfähigkeit) jedes Kabels bzw. jeder Leitung einer Familie auf der Grundlage von Berechnungen mittels Ergebnissen aus Materialprüfungen, ermittelt werden, können diese Ergebnisse prinzipiell direkt angewendet werden. Für die Berechnung der Parameter jedes Kabels bzw. jeder Leitung in einer Familie sind die Ergebnisse aus Materialprüfungen eines Musters eines fertig produzierten Kabels bzw. Leitung aus der Familie ausreichend. Es wird erwartet, dass Kabel und Leitungen mit einem Durchmesser von bis zu 5,0 mm als Bündel nach EN 50399 geprüft werden. Kabel und Leitungen mit einem Durchmesser von kleiner oder gleich 5,0 mm sind nur in den speziellen und allgemeinen EXAP-Regeln für einadrige Starkstromkabel und -leitungen ohne Mantel enthalten. Die Regeln gelten für runde und nichtrunde Kabel und Leitungen, vorausgesetzt sie fallen in den Anwendungsbereich der jeweiligen Prüfmethode. Für jeden Typ der in diesem Dokument aufgeführten elektrischen Kabel- oder Leitungsfamilien wurde eine spezielle EXAP-Regel erarbeitet. Darüber hinaus wurde eine allgemeine EXAP-Regel entwickelt, die sich auf alle Familien von Kabeln oder Leitungen anwenden lässt, sofern in diesem Dokument nicht anders angegeben. ANMERKUNG 1 Mehradrige Starkstromkabel oder -leitungen werden manchmal auch als Steuerleitungen mit einer Nenn-spannung bezeichnet, werden aber für die Anwendung dieses Dokuments als Starkstromkabel oder -leitungen angesehen. Für Multipair-, Multitriple- und Multiquad-Steuerleitungen kann entweder die allgemeine EXAP-Regel oder die spezielle EXAP-Regel für Starkstromkabel oder -leitungen oder die spezielle EXAP-Regel für Kommunikationskabel angewendet werden. Die Anwendung der speziellen EXAP-Regel hat den Vorteil, dass für eine bestimmte Gruppe von Kabel- oder Leitungsbauarten (Produktfamilie) jeweils eine geringere Anzahl an Kabeln geprüft werden muss. Eine Anwendung der EXAP-Regeln ist nur dann möglich, wenn die betreffenden Kabel zu einer bestimmten Familie nach der Definition in dem vorliegenden Dokument gehören. ANMERKUNG 2 Für die Anwendung dieses Dokuments schließt der Begriff Kabel und Leitungen Lichtwellenleiterkabel ein.
Câbles électriques - Application étendue des résultats d'essai pour la réaction au feu
Le présent document décrit les procédures et règles relatives à l’application étendue des résultats d’essai réalisés selon les méthodes d’essai décrites dans l’EN 50399, l’EN 60332 1 2 et l’EN 61034 2. Les règles EXAP décrites s’appliquent aux résultats d’essai EN 50399 utilisés pour le classement, conformément à l’EN 13501 6, en classes B2ca, Cca et Dca, les classements complémentaires s1, s2 et s3 pour la production de fumée, et pour les gouttelettes/particules enflammées, aux résultats d’essai EN 60332 1 2 utilisés pour la classification en classes B2ca, Cca, Dca et Eca, et aux résultats d’essai EN 61034 2 utilisés pour le classement en classements complémentaires s1a et s1b. Aucune procédure ni aucune règle EXAP n’ont été développées concernant les résultats des essais réalisés conformément à la méthode d’essai décrite dans l’EN 60754 2. Comme les paramètres (pH et conductivité) pour chaque câble au sein d’une famille sont déterminés par calcul, en utilisant les résultats des essais sur matériau, ils sont considérés relever de l’application directe. Les résultats des essais sur matériau provenant d’un quelconque échantillon de câble fini au sein d’une famille sont suffisants pour calculer les paramètres pour chaque câble de la famille. Les câbles de diamètre inférieur ou égal à 5,0 mm sont prévus pour être soumis à essai en faisceaux, conformément à l’EN 50399. Les câbles de diamètre inférieur ou égal à 5,0 mm sont inclus dans la règle EXAP spécifique et dans la règle EXAP générale, uniquement pour les câbles d’énergie monoconducteurs non gainés. Les règles s’appliquent aux câbles circulaires et non circulaires, sous réserve qu’ils relèvent du domaine d’application de la méthode d’essai correspondante. Une règle EXAP spécifique a été développée pour couvrir les types de câbles électriques appartenant à une quelconque des familles de câbles définies dans le présent document. Une règle EXAP générale a été développée pour toutes les familles de câbles électriques, sauf spécification contraire en un point quelconque du présent document. NOTE 1 Les câbles d’énergie multiconducteurs sont parfois désignés comme des câbles de commande à tension assignée, mais pour les besoins du présent document, ils sont considérés comme des câbles d’énergie. Pour les câbles de commande à plusieurs paires, à plusieurs tierces et à plusieurs quartes, soit la règle EXAP générale ou spécifique pour les câbles d’énergie, soit la règle EXAP spécifique pour les câbles de communication peut être appliquée. L’utilisation de la règle EXAP spécifique présente un avantage en ce qui concerne le faible nombre de câbles à soumettre à essai pour une gamme de construction de câbles (famille de produits). Une EXAP n’est possible que lorsque les câbles appartiennent à une famille, comme précisé dans le présent document. NOTE 2 Pour les besoins du présent document, le terme "câbles électriques" couvre également les câbles à fibres optiques.
Električni kabli - Razširjena uporaba rezultatov preskusov odziva na ogenj
Ta standard določa postopek in pravila za razširjeno uporabo rezultatov preskusov, izvedenih v skladu s preskusnimi metodami iz standardov EN 50399, EN 60332-1-2 in EN 61034-2.
Opisana pravila razširjene uporabe se uporabljajo za rezultate preskusov iz standarda EN 50399, ki se uporabljajo za klasifikacijo v razredih B2ca, Cca in Dca, dodatnih razredih nastajanja dima s1, s2 in s3 ter gorečih kapljic/delcev, za rezultate preskusov iz standarda EN 60332-1-2, ki se uporabljajo za klasifikacijo v razredih B2ca, Cca, Dca in Eca, ter za rezultate preskusov iz standarda EN 61034 2, ki se uporabljajo za klasifikacijo v razredih s1a in s1b.
V zvezi z rezultati preskusov, izvedenih v skladu s preskusno metodo,
opisano v standardu EN 60754-2, niso bili izdelani nobeni postopki ali pravila razširjene uporabe. Ker se parametri (pH in prevodnost) za vsak kabel v družini določajo na podlagi izračuna z rezultati preskusov materialov, se to obravnava kot predmet neposredne uporabe. Za izračun parametrov za posamezen kabel v družini zadoščajo rezultati preskusov materialov, izvedenih pri katerem koli vzorcu dokončanega kabla iz družine.
Kabli premera 5,0 mm in manj naj bodo preskušeni v snopih v skladu s standardom EN 50399. Kabli v snopu niso zajeti v pravilih razširjene uporabe, ki se uporabljajo za rezultate preskusov iz standarda EN 50399.
Pravila se uporabljajo za krožne in nekrožne kable pod pogojem, da ti spadajo na področje uporabe ustrezne preskusne metode.
Za najpogostejše splošne družine napajalnih kablov, optične kable in bakrene komunikacijske kable (CCC) je bilo oblikovano posebno pravilo razširjene uporabe. Za vse družine napajalnih kablov je bilo oblikovano splošno pravilo razširjene uporabe. Splošno pravilo razširjene uporabe se ne uporablja za komunikacijske ali optične kable.
OPOMBA 1: Večjedrni napajalni kabli se včasih imenujejo krmilni kabli z nazivno napetostjo, vendar se za namene tega standarda obravnavajo kot napajalni kabli. Za dvojne, trojne in četverne krmilne kable je mogoče uporabiti splošno pravilo razširjene uporabe za napajalne kable ali posebno pravilo razširjene uporabe za bakrene komunikacijske kable.
Splošno pravilo razširjene uporabe se lahko uporablja v primeru hibridnih kablov, če so izpolnjeni pogoji iz točke 6.1.
Uporaba posebnega pravila razširjene uporabe ima to prednost, da je treba za niz kabelskih konstrukcij (družino izdelkov) preskusiti manjše število kablov.
Razširjena uporaba je mogoča le, kadar kabli pripadajo določeni družini, kot je opredeljeno v tem standardu.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Nadomešča:
SIST-TS CLC/TS 50576:2017
Električni kabli - Razširjena uporaba rezultatov preskusov odziva na ogenj
Electric cables - Extended application of test results for reaction to fire
Erweiterte Anwendung von Prüfergebnissen bezüglich Brandverhalten
Câbles électriques - Application étendue des résultats d'essai pour la réaction au feu
Ta slovenski standard je istoveten z: EN 50576:2022
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50576
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2022
ICS 13.220.40; 29.060.20 Supersedes CLC/TS 50576:2016
English Version
Electric cables - Extended application of test results for reaction
to fire
Câbles électriques - Application étendue des résultats Kabel und Leitungen - Erweiterte Anwendung von
d'essai pour la réaction au feu Prüfergebnissen bezüglich Brandverhalten
This European Standard was approved by CENELEC on 2022-12-12. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50576:2022 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Extended application of test results (EXAP) . 9
4.1 Product families for EXAP . 9
4.1.1 General . 9
4.1.2 Product families for power cables . 10
4.1.3 Product families for communication cable . 11
4.1.4 Product families for optical fibre cables . 11
5 Specific EXAP for EN 50399 test with safety margin . 12
5.1 Rules for power cables . 12
5.1.1 General . 12
5.1.2 Extension to cables larger than the tested range . 13
5.1.3 Single core unsheathed power cables with a diameter of less than or equal to 5,0 mm
5.2 Rules for optical fibre cables . 14
5.3 Rules for communication cables . 15
6 General EXAP for EN 50399 test for electric cables . 16
6.1 General . 16
6.1.1 Introduction . 16
6.1.2 Selection of cable parameter, n = 3 cables . 17
6.1.3 Selection of cable parameters, n > 3 cables . 18
7 EXAP rule for EN 50399 test for flaming droplets/particles for electric cables . 18
8 EXAP rule for EN 60332-1-2 test for classes B2 , C and D for electric cables . 18
ca ca ca
9 EXAP rule for EN 60332-1-2 test for class E for electric cables . 19
ca
10 Direct application rule for EN 60754-2 test for electric cables . 19
11 EXAP rule for EN 61034-2 test for electric cables. 19
Annex A (informative) An example of flow chart and checklist for specific EXAP . 21
A.1 Basic EXAP procedure flow chart. 21
A.2 Checklist for specific EXAP . 22
Annex B (normative) Rounding of numbers . 23
Annex C (informative) Examples to specific and general EXAP . 24
C.1 For specific EXAP for EN 50399 test . 24
C.2 For general EXAP for EN 50399 test . 24
Bibliography . 28
Tables
Table 1 — Safety margins v for power cables . 12
sm
Table 2 — Allowed range of cable diameters and cable parameters for using safety margins as
specified in Table 1 . 13
Table 3 — Allowed ranges of d for EXAP applied for larger cables . 13
max
Table 4 — Safety margins v for single core unsheathed power cables with a diameter of less than or
sm
equal to 5,0 mm . 14
Table 5 — Safety margins ν for optical fibre cables . 15
sm
Table 6 — Safety margins ν for communication cables . 16
sm
Figures
Figure A.1 — Flow chart of the EXAP procedure . 21
Figure C.1 — Assessment of ν for the classification parameter TSP (theoretical example) . 24
class
Figure C.2 — FIGRA results for cable family . 25
Figure C.3 — TSP results for cable family . 26
Figure C.4 — TSP results for cable family . 27
European foreword
This document (EN 50576:2022) has been prepared by CLC/TC 20 “Electric cables”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-12-12
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2025-12-12
conflicting with this document have to be
withdrawn
This document supersedes CLC/TS 50576:2016 and all of its amendments and corrigenda (if any).
— Inclusion of EXAP rule for single core unsheathed power cables with a diameter of less than or equal to
5,0 mm [8];
— simplification of the choice of samples to the EXAP rule for EN 60332-1-2 for classes B2 , C and D for
ca ca ca
electric cables;
— simplification of the choice of samples due to the changes in the test standard to the EXAP rule for
EN 61034-2;
— implementation of a direct application rule for EN 60754-2;
— improvement of d to the Table 2.
min
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document is read in conjunction with EN 50575 in order to evaluate the reaction to fire performance of
power, control and communication cables.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
The original project “CEMAC – CE marking of cables” was carried out over a three-year period. It brought
together cable manufacturers, research and testing laboratories, and research establishments in creating the
technical background and developing rules and procedures for extended application of test results (EXAP).
More than 200 tests to EN 50399 on more than 100 cables were carried out as part of the project. The final
report [1] was published in 2010 and the EXAP rules and procedures developed by the CEMAC project have
been used as the basis for this document.
A specific EXAP procedure and rules based on the use of safety margins and a cable parameter derived from
the extensive CEMAC tests was developed for the most common generic types of power cables used in the
European market.
A general EXAP procedure and rules based upon a statistical treatment of the actual test results obtained from
a cable family was also developed for any power cables. However, the use of this general procedure and rules
will generally require more tests to be carried out than the use of the specific procedure and rules.
Since the CEMAC project report was completed in 2010, the project has been extended to further investigate
the performance of optical fibre cables and rules and procedures developed for extended application of test
results for these products. An additional report [2] was published in 2015 and the EXAP rules and procedures
developed by the further CEMAC project work was used as the basis for CLC/TS 50576:2016.
Since 2016, the project has been extended to further investigate the performance of communication cables and
rules and procedures developed for extended application of test results for these products. The work [7] was
published in 2016 and has been included in this document.
In addition, this edition includes editorial improvements and re-arrangements.
General guidance on direct and extended application can be found in CEN/TS 15117 [3].
1 Scope
This document describes the procedure and rules for extended application of results of tests carried out
according to the test methods described in EN 50399, EN 60332-1-2 and EN 61034-2.
The EXAP rules described apply to EN 50399 test results used for classification according to EN 13501-6 in
classes B2 , C and D , additional smoke production classes s1, s2 and s3 and flaming droplets/particles, to
ca ca ca
EN 60332-1-2 test results used for classification in classes B2 , C D and E and to EN 61034-2 test
ca ca, ca ca
results used for classification in classes s1a and s1b.
No EXAP procedure and rules have been developed in respect to the results of tests carried out according to
the test method described in EN 60754-2. As the parameters (pH and conductivity) for each cable in a family
are determined based upon calculation using material test results, this is considered as a matter of direct
application. Material test results taken from any one sample of finished cable from a family are sufficient to
calculate the parameters for each cable in the family.
Cables with a diameter of 5,0 mm or less are expected to be tested as bundles according to EN 50399. Cables
with a diameter of less than or equal to 5,0 mm are included in the specific and general EXAP rules for single
core unsheathed power cables only. The rules apply to circular and non-circular cables provided that they fall
within the scope of the relevant test method.
A specific EXAP rule has been developed for any of the types of electric cable families as defined in thi
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