EN 50382-1:2008
(Main)Railway applications - Railway rolling stock high temperature power cables having special fire performance - Part 1: General requirements
Railway applications - Railway rolling stock high temperature power cables having special fire performance - Part 1: General requirements
This Part 1 of EN 50382 specifies the general requirements applicable to the cables given in EN 50382-2. It includes the detailed requirements for the insulating and sheathing materials and other components called up in EN 50382-2. In particular EN 50382-1 specifies those requirements relating to fire safety. Based on proven experience and reliability over many years these cables are rated for occasional thermal stresses causing ageing equivalent to continuous operational life at a conductor temperature of either 120 °C or 150 °C. NOTE This rating is based upon the polymer defined in 3.1. Before this polymer had gained widespread acceptance in the cable industry, ageing performance had been assessed via long term thermal endurance testing and had been extrapolated to 20 000 h using techniques equivalent to those in EN 60216. Subsequent experience in service has demonstrated that the predicted performance levels were correct. Where extrapolated data is used to predict lifetime in service it should be confirmed with the cable manufacturer, and should be based on a failure mode appropriate to the type of material or cable. The maximum temperature for short circuit conditions for silicone rubber is 350 °C based on a duration of 5 s. Although both of the insulating and one of the sheathing compounds specified in this standard are thermally capable of operating at 150 °C, where tinned conductors are used the maximum operating temperature is limited to 120 °C and for the same technical reason the maximum short circuit temperature, for tinned copper conductors, is limited to 250 °C. The choice of sheath may also limit the operating temperature to 120 °C. This Part 1 should be used in conjunction with EN 50382-2.
Bahnanwendungen - Hochtemperaturkabel und -leitungen für Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Teil 1: Allgemeine Anforderungen
Dieser Teil 1 von EN 50382 legt die allgemeinen Anforderungen an Leitungen nach EN 50382-2 fest. Er enthält die detaillierten Anforderungen an die Isolier- und Mantelmaterialien und anderen Komponenten, die in EN 50382-2 angesprochen werden. Insbesondere legt EN 50382-1 die Anforderungen fest, die sich auf die Brandsicherheit beziehen. Dieser Teil 1 ist in Verbindung mit EN 50382-2 anzuwenden. Auf der Grundlage bestätigter Erfahrungen und von Zuverlässigkeit über viele Jahre sind diese Leitungen für gelegentliche thermische Beanspruchung ausgelegt, die zu einer Alterung führen, die einem kontinuierlichen Betriebszustand des Leiters bei 120 °C oder 150 °C entsprechen. ANMERKUNG Diese Bemessung beruht auf dem in 3.1 definierten Polymer. Bevor dieses Polymer breite Anerkennung in der Kabelindustrie fand, wurde das Alterungsverhalten durch eine Langzeitprüfung ermittelt und auf 20 000 h interpoliert unter Verwendung von zu den in EN 60216 äquivalenten Techniken. Darauf folgende Erfahrungen im Betrieb haben gezeigt, dass die vorhergesagten Verhaltensniveaus korrekt waren. Wenn extrapolierte Werte zur Vorhersage der Lebensdauer im Betrieb verwendet werden, sollten sie vom Hersteller der Leitung bestätigt werden und Grundlage einer Fehlerart in Abhängigkeit vom Werkstofftyp oder von der Leitungsbauart. Die maximale Kurzschlusstemperatur für Silikon beträgt 350 °C bei 5 s Dauer. Obwohl beide in dieser Norm festgelegten Isolier- und einer der Mantelwerkstoffe für den Betrieb bei Temperaturen bis 150 °C geeignet sind, ist bei verzinnten Leitern die maximale Betriebstemperatur 120 °C und aus denselben technischen Gründen ist die maximale Kurzschlusstemperatur bei verzinnten Kupferleitern auf 250 °C begrenzt. Durch die Wahl des Mantels kann die Betriebstemperatur auch auf 120 °C begrenzt werden.
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Partie 1: Prescriptions générales
La présente Partie 1 de la EN 50382 spécifie les prescriptions générales applicables aux câbles donnés dans la EN 50382-2. Elle comporte les prescriptions détaillées pour les matériaux d'isolation et de gainage et autres composants appelés dans les parties séparées. En particulier la EN 50382-1 spécifie celles relatives à la sécurité vis à vis du feu. Ces câbles, basés sur une expérience éprouvée et fiable depuis plusieurs années, sont définis pour des contraintes thermiques occasionnelles provoquant un vieillissement équivalent à celui d’un fonctionnement en régime permanent à une température de l’âme de 120 °C ou 150 °C. NOTE Ces valeurs sont basées sur le polymère défini en 3.1. Avant que ce polymère soit largement utilisé dans l’industrie du câble, des performances de vieillissement ont été évaluées via l’essai d’endurance thermique extrapolé à 20 000 h en utilisant des techniques équivalentes à celles de la EN 60216. Le retour d’expérience en service a démontré que les niveaux de performances prédits étaient corrects. Lorsque l’extrapolation des résultats est utilisée pour prédire la durée de vie en service, il est recommandé de la confirmer avec le câblier et il est recommandé de baser le mode de défaillance approprié au type de matériau ou au câble. La température maximale de court-circuit, basée sur une durée de 5 s, est de 350 °C pour le silicone. Bien que les matériaux d’isolation et de gainage spécifiés dans la présente norme soient thermiquement capables de fonctionner à 150 °C, la température de fonctionnement est limitée à 120 °C lorsque les âmes sont étamées et pour les mêmes raisons techniques, la température maximale de court-circuit est limitée à 250 °C pour les âmes étamées. Le choix de la gaine peut aussi limiter la température de fonctionnement à 120 °C. La présente Partie 1 devra être utilisée conjointement avec les parties particulières de la EN 50382-2.
Železniške naprave - Visokotemperaturni močnostni kabli za železniška vozna sredstva, ki imajo posebne požarne lastnosti - 1. del: Splošne zahteve
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2008
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Railway applications - High temperature power cables for railway rolling stock and having
special fire performance - Part 1: General requirements
Bahnanwendungen - Hochtemperaturkabel und -leitungen für Schienenfahrzeuge mit
verbessertem Verhalten im Brandfall - Teil 1: Allgemeine Anforderungen
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des
performances particulières de comportement au feu - Partie 1: Prescriptions générales
Ta slovenski standard je istoveten z: EN 50382-1:2008
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 50382-1
NORME EUROPÉENNE
March 2008
EUROPÄISCHE NORM
ICS 13.220.40; 29.060.20; 45.060.01
English version
Railway applications -
Railway rolling stock high temperature power cables
having special fire performance -
Part 1: General requirements
Applications ferroviaires - Bahnanwendungen -
Câbles pour matériel roulant ferroviaire Hochtemperaturkabel und -leitungen
ayant des performances particulières für Schienenfahrzeuge mit verbessertem
de comportement au feu - Verhalten im Brandfall -
Partie 1: Prescriptions générales Teil 1: Allgemeine Anforderungen
This European Standard was approved by CENELEC on 2008-02-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50382-1:2008 E
Foreword
This European Standard was prepared for the Technical Committee CENELEC TC 20, Electric cables, by
Working Group 12, Railway Cables, as part of the overall programme of work in the Technical Committee
CENELEC TC 9X, Electrical and electronic applications for railways.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50382-1 on
2008-02-01.
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) 2009-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-02-01
––––––––––––
– 3 – EN 50382-1:2008
Contents
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Definitions . 6
4 Rated voltage . 7
5 M arking . 8
5.1 Indication of origin . 8
5.2 Continuity of marks . 8
5.3 Durability . 8
5.4 Legibility . 9
5.5 Additional marking. 9
5.6 Use of the name CENELEC . 9
6 General requirements for the construction of cables . 9
6.1 Conductors . 9
6.2 Insulation system . 10
6.3 Tapes . 10
6.4 Sheath . 11
6.5 Overall diameter . 11
6.6 Non-metallic components . 11
7 Electrical performance . 12
8 Reaction to fire – Cables . 12
8.1 Flame propagation (flame spread) – Single vertical cable . 12
8.2 Flame propagation (flame spread) – Bunched cables . 12
8.3 Smoke emi s s i on . 12
9 Reaction to fire – Components . 12
9.1 Assessment of halogens . 12
9.2 Toxicity . 12
Annex A (normative) Requirements for halogens . 19
Annex B (normative) Determination of halogens – Elemental test . 21
Annex C (normative) Thickness and overall diameter – Selection of samples and
calculation of results . 23
Annex D (informative) Guidance on selection of cables for type approval . 24
Bibliography . 25
Figures
Figure 1 – Example of marking . 8
Tables
Table 1 – Rated voltages . 8
Table 2 – Requirements for the tests for halogen free insulating compounds for Part 2 . 13
Table 3 – Requirements for the tests for halogen free sheathing compounds for Part 2 . 16
Table A.1 – Type test . 19
Table A.2 – Sample test . 19
Table D.1 – Selection of cables for type approval . 24
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.
EN 50382 specifies cables for power and associated circuits which, in the event of fire, will limit the risk to
people and improve the safety on railways in general. It covers cables, for use in railway rolling stock, and
having standard wall thickness of insulation, based on materials that allow them to operate at high
temperature and which are also halogen free. In the event of a fire affecting cables to EN 50382 they will
have a limited flame spread and limited emission of toxic gases. In addition these cables when burnt produce
limited amounts of smoke. This last characteristic will minimise loss of visibility in the event of a fire and will
aid reduced evacuation times.
The objects of this standard are
– to standardise cables that are safe and reliable when properly used,
– to state the characteristics, performance, and construction requirements directly or indirectly bearing on
safety,
– to specify methods for checking conformity with these requirements.
EN 50382, which covers a range of cables rated at up to 3,6/6 kV with conductor sizes 1,5 mm² up to
400 mm², is divided into 2 parts:
– Part 1: General requirements;
– Part 2: Single core silicone rubber insulated cables for 120 °C or 150 °C.
These cables are intended for a limited number of applications.
Information regarding selection and installation of cables including current ratings can be found in EN 50355
and EN 50343. The procedure for selection of cable cross-sectional area, including reduction factors for
ambient temperature and installation type, are described in EN 50343.
NOTE Current ratings for inclusion in EN 50355 are under development for the next amendment.
Special test methods referred to in EN 50382 are given in EN 50305.
– 5 – EN 50382-1:2008
1 Scope
This Part 1 of EN 50382 specifies the general requirements applicable to the cables given in EN 50382-2. It
includes the detailed requirements for the insulating and sheathing materials and other components called up
in EN 50382-2. In particular EN 50382-1 specifies those requirements relating to fire safety.
Based on proven experience and reliability over many years these cables are rated for occasional thermal
stresses causing ageing equivalent to continuous operational life at a conductor temperature of either 120 °C
or 150 °C.
NOTE This rating is based upon the polymer defined in 3.1. Before this polymer had gained widespread acceptance in the cable
industry, ageing performance had been assessed via long term thermal endurance testing and had been extrapolated to 20 000 h using
techniques equivalent to those in EN 60216. Subsequent experience in service has demonstrated that the predicted performance levels
were correct.
Where extrapolated data is used to predict lifetime in service it should be confirmed with the cable manufacturer, and should be based
on a failure mode appropriate to the type of material or cable.
The maximum temperature for short circuit conditions for silicone rubber is 350 °C based on a duration of 5 s.
Although both of the insulating and one of the sheathing compounds specified in this standard are thermally
capable of operating at 150 °C, where tinned conductors are used the maximum operating temperature is
limited to 120 °C and for the same technical reason the maximum short circuit temperature, for tinned copper
conductors, is limited to 250 °C. The choice of sheath may also limit the operating temperature to 120 °C.
This Part 1 should be used in conjunction with EN 50382-2.
2 Normative references
The following referenced documents are indispensable for the application 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 10002-1 Metallic materials – Tensile testing – Part 1: Method of test (at ambient
temperature)
EN 50266-2-4 Common test methods for cables under fire conditions – Test for vertical
flame spread of vertically-mounted bunched wires or cables – Part 2-4:
Procedures – Category C
EN 50266-2-5 Common test methods for cables under fire conditions – Test for vertical
flame spread of vertically-mounted bunched wires or cables – Part 2-5:
Procedures – Small cables – Category D
EN 50267-2-1 Common test methods for cables under fire conditions – Tests on gases
evolved during combustion of materials from cables – Part 2–1: Procedures –
Determination of the amount of halogen acid gas
EN 50267-2-2 Common test methods for cables under fire conditions – Tests on gases
evolved during combustion of materials from cables – Part 2–2: Procedures –
Determination of degree of acidity of gases for materials by measuring pH
and conductivity
EN 50305:2002 Railway
...
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