SIST EN 50305:2020
(Main)Railway applications - Railway rolling stock cables having special fire performance - Test methods
Railway applications - Railway rolling stock cables having special fire performance - Test methods
This document specifies special test methods applicable to cables, and their constituent insulating and sheathing materials, for use in railway rolling stock. Such cables are specified in the various parts of the EN 50264 series, EN 50306 series and EN 50382 series.
Other test methods required for railway rolling stock cables and their insulating and sheathing materials are listed in Annex A.
Bahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Prüfverfahren
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Méthodes d'essais
Le présent document définit les méthodes d'essais spéciaux relatives aux câbles et à leurs matériels d'isolation et de gainage constitutifs, utilisés dans le matériel roulant ferroviaire. Ces câbles sont spécifiés dans les différentes parties de la série EN 50264, de la série EN 50306 et de la série EN 50382.
D'autres méthodes d’essai exigées pour les câbles de matériel roulant ferroviaire et leurs matériels d'isolation et de gainage correspondants sont indiquées à l’Annexe A.
Železniške naprave - Kabli v železniških vozilih s posebno požarno odpornostjo - Preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 50305:2002
Železniške naprave - Kabli v železniških vozilih s posebno požarno odpornostjo -
Preskusne metode
Railway applications - Railway rolling stock cables having special fire performance - Test
methods
Bahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem
Verhalten im Brandfall - Prüfverfahren
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des
performances particulières de comportement au feu - Méthodes d'essais
Ta slovenski standard je istoveten z: EN 50305:2020
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
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50305
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 29.060.20; 45.060.01 Supersedes EN 50305:2002 and all of its amendments
and corrigenda (if any)
English Version
Railway applications - Railway rolling stock cables having
special fire performance - Test methods
Applications ferroviaires - Câbles pour matériel roulant Bahnanwendungen - Kabel und Leitungen für
ferroviaire ayant des performances particulières de Schienenfahrzeuge mit verbessertem Verhalten im
comportement au feu - Méthodes d'essais Brandfall - Prüfverfahren
This European Standard was approved by CENELEC on 2019-12-30. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50305:2020 E
Contents Page
European foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 Applicability, sampling, test-piece preparation and test conditions .7
4.1 Applicable tests .7
4.2 Classification of tests .7
4.3 Sampling .7
4.4 Test-piece preparation .7
4.5 Test conditions .7
4.5.1 Ambient temperature .7
4.5.2 Tolerance on temperature values .7
4.5.3 Frequency and waveform of power frequency test voltages .8
4.5.4 Pre-conditioning .8
5 Mechanical tests .8
5.1 Impact test at low temperature .8
5.2 Abrasion resistance .8
5.3 Notch propagation .9
5.4 Pliability (only applicable for cable in according to EN 50306 series) . 10
5.5 Strippability and adhesion of insulation (only applicable for cable in according to
EN 50306 series) . 11
5.5.1 Strippability . 11
5.5.2 Adhesion . 11
5.6 Dynamic cut-through (only applicable for cable in according to EN 50306 series) . 11
6 Electrical tests . 12
6.1 Electrical resistance of conductors . 12
6.2 Voltage test on completed cable . 12
6.2.1 Cable without metallic layer. 12
6.2.2 Cable with one or more metallic layers . 12
6.3 Voltage test on sheath . 12
6.4 Insulation resistance . 13
6.4.1 Test at ambient temperature . 13
6.4.2 Test at elevated temperature . 13
6.5 Spark test. 13
6.5.1 General . 13
6.5.2 Method. 13
6.6 Surface resistance . 13
6.7 DC stability. 14
6.8 Dielectric strength . 15
7 Ageing and thermal tests. 15
7.1 Compatibility . 15
7.2 Long term ageing . 15
7.2.1 General . 15
7.2.2 Summary of test method . 15
7.2.3 Apparatus . 16
7.2.4 Method. 16
7.3 Long term ageing for sheath and insulation where winding test is not possible . 18
7.4 Ozone resistance . 18
7.4.1 Electrical test . 18
7.4.2 Non-electrical test . 18
7.5 Pressure test at high temperature . 20
7.6 Shrinkage test for insulation . 20
7.7 Stress cracking test . 20
7.7.1 General . 20
7.7.2 Preparation of test assemblies . 20
7.7.3 Determination of the 168 h thermal ageing test temperature . 21
7.7.4 Test method . 22
8 Tests in fluids, including water . 22
8.1 Mineral and fuel oil resistance . 22
8.2 Acid and alkali resistance . 22
8.3 Water absorption of sheath . 22
9 Fire performance tests . 23
9.1 Flame propagation . 23
9.1.1 Cables with overall diameter greater than 6 mm and less than 12 mm . 23
9.1.2 Cables with overall diameter not greater than 6 mm . 23
9.2 Toxicity . 23
9.2.1 General . 23
9.2.2 Qualitative analysis for nitrogen and sulfur using molten sodium . 24
9.2.3 Quantitative analysis . 24
9.2.4 Index calculation . 26
10 Miscellaneous tests . 27
10.1 Durability of marking . 27
10.2 Blocking of cores . 27
10.3 Determination of halogen content . 27
Annex A (informative) List of other test methods applicable to rolling stock cables . 28
Annex B (normative) Procedure for checking the efficacy of the method of spark testing (with
reference to 6.5) . 29
Annex C (informative) Long term ageing test – Significance and use . 31
Annex D (informative) Illustration of an Arrhenius plot . 32
Annex E (normative) Analysis methods for toxicity . 33
Annex F (normative) Halogen-Free . 39
Annex G (normative) Determination of halogens – Elemental test . 41
Bibliography . 43
European foreword
This document (EN 50305:2020) has been prepared by CLC/TC 20, “Electric cables”.
The following dates are fixed:
• latest date by which this document has (dop) 2020-12-30
to be implemented at na
...
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