EN 50343:2003

Railway applications - Rolling stock - Rules for installation of cabling

This European Standard specifies requirements for the installation of cabling on railway vehicles and within electrical enclosures on railway vehicles, including magnetic levitation trains and trolley buses. NOTE With respect to trolley buses, this standard applies to the whole electric traction system, including current collecting circuits, power converters and the respective control circuits. The installation of other circuits is covered by street vehicle standards for example those for combustion driven buses. This standard covers cabling for making electrical connections between items of electrical equipment, including cables, busbars, terminals and plug/socket devices. It does not cover special effect conductors like fibre optic cables or hollow conductors (waveguides). The material selection criteria given here are applicable to cables with a copper conductor. This standard is not applicable to the following: - special purpose vehicles, such as track-laying machines, ballast cleaners and personnel carriers; - vehicles used for entertainment on fairgrounds; - vehicles used in mining; - electric cars; - funicular railways. As the field of cabling in rolling stock is also dealt with in the cable makers’ standard, references are made to EN 50264, EN 50306 and EN 50355. This European Standard applies in conjunction with the relevant product and installation standards. Stricter requirements than those given in this standard may be necessary.

Bahnanwendungen - Fahrzeuge - Regeln für die Installation von elektrischen Leitungen

Applications ferroviaires - Matériel roulant - Règles d'installation du câblage

Železniške naprave – Vozna sredstva – Pravila za inštaliranje kablov

General Information

• Status: Withdrawn
• Publication Date: 08-May-2003
• Withdrawal Date: 30-Nov-2005
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: CLC/TC 9X - Electrical and electronic applications for railways
• Drafting Committee: CLC/SC 9XB - Electromechanical material on board rolling stock
• Parallel Committee: IEC/TC 9 - IEC_TC_9
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 27-Jan-2017
• Completion Date: 27-Jan-2017
• Directive: 96/48/EC - Interoperability of the trans-European high-speed rail system
• Ref Project: SIST EN 50343:2003 - Railway applications - Rolling stock - Rules for installation of cabling

Relations

• Replaced By: EN 50343:2014 - Railway applications - Rolling stock - Rules for installation of cabling
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2003
Železniške naprave – Vozna sredstva – Pravila za inštaliranje kablov
Railway applications - Rolling stock - Rules for installation of cabling
Bahnanwendungen - Fahrzeuge - Regeln für die Installation von elektrischen Leitungen
Applications ferroviaires - Matériel roulant - Règles d'installation du câblage
Ta slovenski standard je istoveten z: EN 50343:2003
ICS:
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 50343
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2003
ICS 45.060.01
English version
Railway applications -
Rolling stock -
Rules for installation of cabling

Applications ferroviaires -  Bahnanwendungen -
Matériel roulant - Fahrzeuge -
Règles d'installation du câblage Regeln für die Installation von
elektrischen Leitungen
This European Standard was approved by CENELEC on 2002-12-03. 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

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50343:2003 E
Foreword
This European Standard has been prepared by the Working Group B8 of SC 9XB "Electromechanical material
on board of rolling stock" of the Technical Committee CENELEC TC 9X, Electrical and electronic applications for
railways. As the subjects „Cabling“ and „Cables“ have much in common, a close co-operation between the
above Working Group and Working Group 12 „Railway cables“ of CENELEC TC 20 „Electric cables“ has
been maintained during preparation.

The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50343 on
2002-12-03.
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) 2003-12-01

- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-12-01

Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, Annexes A, C, D, E, H and J are normative and Annexes B, F, G, and I are informative.

- 3 - EN 50343:2003
Contents
1 Scope.5
2 Normative references.5
3 Definitions .7
4 Abbreviations .8
5 Technical requirements .9
5.1 General requirements.9
5.2 Selection of type and size of cables .9
5.3 Bundling of cables .15
5.4 Flexibility of cables .15
5.5 Minimum cross-sectional area of conductors .15
5.6 Use of green and yellow colour .16
5.7 Bending radii and other mechanical requirements .16
5.8 Re-termination.16
5.9 Busbars.16
5.10 Connections to busbars .16
5.11 Separation of cables with different voltage ratings or power levels for safety reasons .16
5.12 Provisions for refurbishment and maintenance, including inspection and repair.18
5.13 Fire prevention, cable laying and cabling behaviour in case of fire .18
5.14 Provision of spares for control cabling.19
5.15 Requirements for fixing .19
5.16 Clearances and creepage distances.20
5.17 Requirements for terminating conductors .20
5.18 Use of heat-shrinkable sleeves .22
5.19 Connections for return current.23
6 EMC requirements.23
6.1 General.23
6.2 Cable categories.23
6.3 Separation of cables .23
6.4 Return conductor.24
6.5 Use of conductive structure.24
6.6 Shielding and earthing .24
6.7 Supply connection from battery .25
6.8 Databus lines.25
7 Marking.25
7.1 General.25
7.2 Marking of cables.25
7.3 Marking of terminal blocks, individual terminals, plugs and sockets, busbars .26
7.4 Marking of insulators.26
7.5 Marking for warning against electrical shock .26
7.6 Marking using heat-shrinkable sleeves.26
8 Testing.26
8.1 General concerning testing .26
8.2 Electrical insulation tests .26
Annex A (normative) Cable sizing - Calculation of load current under short time load conditions .30
Annex B (informative) Cable sizing - Examples of current ratings.31
Annex C (normative) Cable sizing - Calculating current ratings for temperature classes other t
han 90 °C .32
Annex D (normative) Cable sizing - Correction factor k for expected ambient temperature .33
Annex E (normative) Cable sizing - Prediction of cable lifetime .34
Annex F (informative) Cable sizing - Calculation examples .35
Annex G (informative) Termination methods.37
Annex H (normative) Tests on marking when using heat-shrinkable sleeves .39
Annex I (informative) Effects of the number of earth connections to a cable screen .40

Annex J (normative) Items to be agreed between manufacturer and purchaser .41
Bibliography.42

Figures
Figure 1 - Example of short circuit condition where cable size will have influence on
protection device behaviour .10
Figure 2 - Cable grouping and installation conditions .14
Figure 3 - Locations in rolling stock, concerning use of minimum cross-sectional areas for conductors .15
Figure 4 - Separation of cables by required distance: D > 2 d and D > 0,1 m.17
Figure 5 - Examples of separation of cables by barriers or by insulation .18
Figure 6 - Dimensions for calculating the effective area of a contact .22
Figure 7 - Examples of cable or plug constructions where identification is done by configuration .25
Tables
Table 1 - Modification factor k for installation type (grouping and installation conditions) .13
Table 2 - Selection of cable conductor size on the basis of rating of protection device .14
Table 3 - Example of division of cables into three categories for safety reasons .17
Table 4 - Examples for allowed and forbidden numbers of contact interfaces.21
Table 5 - Cable categories with respect to EMC.23
Table 6 - Minimum distances between cables of different EMC categories .24
Table 7 - Test voltages according to on-board voltages.28
Table 8 - Test voltages according to supply line voltages.28
Table A.1 - Modification factor k .30
Table B.1 - Examples of current ratings for standard wall cables, with 90 °C maximum
conductor operating temperature .31
*
Table C.1 - Factor k , used when comparing current ratings for 90 °C maximum conductor
operating temperature with other temperature classes .32
Table D.1 - Modification factor k .33
Table E.1 - Examples of values of correction factor k to allow for decrease in
predicted cable lifetime .34
Table G.1 - Methods of terminating cables, conductor side .37
Table G.2 - Methods of terminating cables, terminal side .
...