EN 50305:2002
(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 standard 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 EN 50264 and EN 50306. 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
Diese Norm legt besondere Prüfverfahren für Kabel und Leitungen und die dazugehörigen Isolier- und Mantelwerkstoffe fest, die für die Verwendung in Schienenfahrzeugen bestimmt sind. Diese Kabel und Leitungen sind in den verschiedenen Teilen der EN 50264 und EN 50306 genormt. Weitere Prüfverfahren für Kabel und Leitungen für Schienefahrzeuge und ihre Isolier- und Mantelwerkstoffe sind in Anhang A auf¬geführt.
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Méthodes d'essais
La présente norme définit les méthodes d'essais spéciaux concernant les câbles et leurs matériels d'isolation et de gainage constitutifs, utilisés dans le matériel roulant ferroviaire. Ces câbles sont spécifiés dans les différentes parties des normes EN 50264 et EN 50306. D'autres méthodes d'essais intéressant les câbles de matériel roulant ferroviaire et leurs matériels d'isolation et de gainage correspondants sont indiquées en Annexe A.
Railway applications - Railway rolling stock cables having special fire performance - Test methods
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2002
Railway applications - Railway rolling stock cables having special fire performance
- Test methods
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 50305:2002
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
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 July 2002
ICS 13.220.20; 29.060.20; 45.060.01
English version
Railway applications -
Railway rolling stock cables having special fire performance -
Test methods
Applications ferroviaires - Bahnanwendungen -
Câbles pour matériel roulant ferroviaire Kabel und Leitungen für Schienenfahrzeuge
ayant des performances particulières mit verbessertem Verhalten im Brandfall -
de comportement au feu - Prüfverfahren
Méthodes d'essais
This European Standard was approved by CENELEC on 2002-07-02. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50305:2002 E
Foreword
This European Standard was prepared for the Technical Committee CENELEC TC 20, Electric cables
by WG 12, Railway cables, on behalf of the Technical Committee CENELEC TC 9X, Electrical and
electronic applications for railways.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 50305 on 2002-07-02.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-07-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-07-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes B and E are normative and annexes A, C and D are informative.
__________
– 3 – EN 50305:2002
Contents
Introduction.5
1 Scope.6
2 Normative references.6
3 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
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 .10
5.5 Strippability and adhesion of insulation.11
5.6 Dynamic cut-through.11
6 Electrical tests.12
6.1 Electrical resistance of conductors .12
6.2 Voltage test on completed cable.12
6.3 Voltage test on sheath.12
6.4 Insulation resistance .13
6.5 Spark test .13
6.6 Surface resistance .14
6.7 D.C. stability .14
6.8 Dielectric strength .15
7 Ageing and thermal tests.15
7.1 Compatibility .15
7.2 Long term ageing for insulation .15
7.3 Long term ageing for sheath.19
7.4 Ozone resistance.19
7.5 Pressure test at high temperature .21
7.6 Shrinkage test for insulation .21
7.7 Stress cracking test.21
8 Tests in fluids, including water.23
8.1 Mineral and fuel oil resistance .23
8.2 Acid and alkali resistance.23
8.3 Water absorption of sheath .23
9 Reaction to fire tests .24
9.1 Flame propagation.24
9.2 Toxicity .24
10 Miscellaneous tests.27
10.1 Durability of marking .27
10.2 Blocking of cores.27
Annex A (informative) List of other test methods applicable to rolling stock cables .29
Annex B (normative) Procedure for checking the efficacy of the method of spark testing (with
reference to 6.5) .30
Annex C (informative) Long term ageing test – Significance and use.32
Annex D (informative) Illustration of an Arrhenius plot.33
Annex E (normative) Analysis methods for toxicity .34
Figure 1 – Test arrangement for abrasion of insulation and sheath.9
Figure 2 – Pliability test rig .10
Figure 3 – Assembly for adhesion test.11
Figure 4 – Arrangement of electrodes for test sample.14
Figure 5 – Suggested method of attachment of insulated wire test specimen to mandrel .18
Figure 6 – Clamping device.20
Figure 7 – Flat topped cone .22
Figure 8 – Schematic diagram of apparatus for production, collection and analysis of gases.26
Figure B.1 – Removal of insulation segment.30
Figure B.2 – Overlap position for tape .31
Table 1 – Tolerances for temperature values.7
Table 2 – Parameters for impact test at low temperature.8
Table 3 – Recommended exposure times in days per cycle.17
Table 4 – Requirements for wrapping test .17
Table 5 – Determination method to be applied .25
Table 6 – CC values for various gases .27
z
– 5 – EN 50305:2002
Introduction
The railway industry is generally concerned with the movement of people as well as goods. It is
therefore essential that a high level of safety is achieved, even when failures occur which may involve
fire, howsoever caused, affecting railway rolling stock.
Hence it is necessary to provide cables for use in railway environments which minimise the hazard to
people when a fire may damage the cable, irrespective of whether the fire is caused by an external
source or from within the electrical system.
European Standards EN 50264 and EN 50306 specify cables which, in the event of fire will limit risk to
people and improve the safety on railways in general. They cover cables based on halogen free
materials, for use in railway rolling stock.
EN 50264 covers a range of sheathed and unsheathed cables, with standard wall thickness of
2 2
insulation, rated at up to 3,6/6 kV with conductor sizes 1,0 mm up to 400 mm .
EN 50306 covers a range of sheathed and unsheathed cables with thin wall insulation, and restricted
to a rating of 300 V to earth and a maximum conductor size of 2,5 mm .
This standard EN 50305, gives particular test methods applicable to the cables at present covered by
EN 50264 and EN 50306.
1 Scope
This standard 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
EN 50264 and EN 50306.
Other test methods required for railway rolling stock cables and their insulating and sheathing
materials are listed in Annex A.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to app
...
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