SIST EN 50343:2003
(Main)Railway applications - Rolling stock - Rules for installation of cabling
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
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50343:2003
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
SIST EN 50343:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50343:2003
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SIST EN 50343:2003
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
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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.
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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
1
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
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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
2
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
4
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
1
Table E.1 - Examples of values of correction factor k to allow for decrease in
3
predicted cable lifetime .34
Table G.1 - Methods of terminating cables, conductor side .37
Table G.2 - Methods of terminating cables, terminal side .38
Table H.1 - Preparation of heat-shrinkable sleeve for test of marking quality.39
Table I.1 - Effects of shielding .40
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1 Scope
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.
2 Normative references
This European Standard incorporates by dated or undated references, provisions from other publications.
These normative references are cited at the appropriate place 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 applies.
1)
EN 45545-1 Railway applications - Fire protection on railway vehicles - Part 1: General
1)
EN 45545-5 Railway applications - Fire protection on railway vehicles - Part 5: Fire safety
requirements for electrical equipment including that of trolley buses, track guided
buses and magnetic levitation vehicles
EN 50121-3-1 Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock - Train
and complete vehicle
EN 50121-3-2 Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock -
Apparatus
EN 50124-1 Railway applications - Insulation coordination - Part 1: Basic requirements -
Clearances and creepage distances for all electrical and electronic equipment
EN 50125-1 Railway applications - Environmental conditions for equipment - Part 1: Equipment on
board rolling stock
EN 50153 Railway applications - Rolling stock - Protective provisions relating to electrical hazards
EN 50200 Method of test for resistance to fire of unprotected small cables for use in emergency
circuits
1)
At draft stage.
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EN 50215 Railway applications - Testing of rolling stock after completion of construction and
before entry into service
EN 50264-1 Railway applications - Railway rolling stock cables having special fire performance -
Standard wall - Part 1: General requirements
EN 50264-2 Railway applications - Railway rolling stock cables having special fire performance -
Standard wall - Part 2: Single core cables
EN 50264-3 Railway applications - Railway rolling stock cables having special fire performance -
Standard wall - Part 3: Multicore cables
EN 50306-1 Railway applications - Railway rolling stock cables having special fire performance -
Thin wall - Part 1: General requirements
EN 50306-2 Railway applications - Railway rolling stock cables having special fire performance -
Thin wall - Part 2: Single core cables
EN 50306-3 Railway applications - Railway rolling stock cables having special fire performance -
Thin wall - Part 3: Single core and multicore cables (Pairs, triples and quads) screened
and thin wall sheathed
EN 50306-4 Railway applications - Railway rolling stock cables having special fire performance -
Thin wall - Part 4: Multicore and multipair cables standard wall sheathed
1)
EN 50355 Railway applications - Railway rolling stock cables having special fire performance -
Thin wall and Standard Wall - Guide to use
EN 60352-1 Solderless connections - Part 1: Wrapped connections - General requirements, test
methods and practical guidance (IEC 60352-1)
EN 60352-7 Solderless connections - Part 7: Spring-clamp connections - General requirements,
test methods and practical guidance (IEC 60352-7)
EN 60684-3-212 Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving -
Sheet 212: Heat-shrinkable polyolefin sleeving, flame retarded, shrink ratio 2:1
(IEC 60684-3-212)
1)
EN 60684-3-216 Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving -
Sheet 216: Heat-shrinkable, flame retarded, limited fire-hazard sleeving
(IEC 60684-3-216)
EN 60684-3-217 Flexible insulating sleeving. Part 3: Specifications for individual types of sleeving -
Sheet 217: Heat-shrinkable polyolefin sleeving, flame retarded shrink ratio 3:1
(IEC 60684-3-217)
EN 60684-3-271 Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving -
Sheet 271: Heat-shrinkable elastomer sleeving, flame retarded, fluid resistant, shrink
ratio 2:1 (IEC 60684-3-271)
EN 60947-7-1 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal
blocks for copper conductors (IEC 60947-7-1)
EN 60947-7-2 Low-voltage switchgear and controlgear - Part 7-2: Ancillary equipment - Protective
conductor terminal blocks for copper conductor (IEC 60947-7-2)
EN 60998-2-2 Connecting devices for low-voltage circuits for household and similar purposes -
Part 2-2: Particular requirements for connecting devices as separate entities with
screwless-type clamping units (IEC 60998-2-2)
1)
EN 60999-2 Connecting devices - Electrical copper conductors - Safety requirements for screw-
type and screwless-type clamping units - Part 2: Particular requirements for clamping
units for conductors above 35 mm² up to 300 mm² (included) (IEC 60999-2)
EN 61210 Connecting devices - Flat quick-connect terminations for electrical copper conductors -
Safety requirements (IEC 61210, modified)
EN 61310-1 Safety of machinery - Indication, marking and actuation - Part 1: Requirements for
visual, auditory and tactile signals (IEC 61310-1)
HD 383 S2 Conductors of insulated cables – First supplement: Guide to the dimensional limits of
circular conductors (IEC 60228:1978 + IEC 60228A:1982, modified)
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HD 384.4.43 S2 Electrical installations of buildings -- Part 4: Protection for safety -- Chapter 43:
Protection against overcurrent (IEC 60364-6-43:1977 + A1:1997, modified)
HD 384.5.54 S1 Electrical installations of buildings - Part 5: Selection and erection of electrical
equipment - Chapter 54: Earthing arrangements and protective conductors
(IEC 60364-5-54:1980, modified)
HD 588.1 S1 High-voltage test techniques - Part 1: General definitions and test requirements
(IEC 60060-1:1989 + corrigendum March 1990)
IEC 60050-461 International Electrotechnical Vocabulary - Chapter 461: Electric cables
ISO 1302 Geometrical Product Specifications (GPS) – Indication of surface texture in technical
product documentation
3 Definitions
For the purposes of this standard, the following definitions apply. Reference is made to IEC 60050-461.
3.1
cable
assembly consisting of
- one or more cores (screened or unscreened),
- their individual covering(s) (if any),
- assembly protection (if any),
- screen(s) (if any),
- sheath (if any)
[461-06-01, mod.]
3.2
conductor (of a cable)
part of a cable which has the specific function of carrying current
[461-01-01]
3.3
core
assembly comprising a conductor with its own insulation (and screens if any)
[461-04-04]
3.4
solid conductor
conductor consisting of a single wire
[461-01-06, mod.]
3.5
stranded conductor
conductor consisting of a number of individual wires or strands all or some of which generally have a helical
form
[461-01-07, mod.]
3.6
busbar
conductor consisting of a rigid metal profile
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3.7
screen (of a cable)
conducting layer(s) having the function of control of the electro magnetic field within the cable and/or to
protect the cable from external electro magnetic influences
[461-03-01, mod.]
3.8
bundle
group of cables tied together
3.9
bolted connection
connection in which the pressure to the conductor is applied by bolting
[461-19-05]
3.10
crimp
cable termination in which a permanent connection is made by applying pressure, inducing the deformation
or reshaping of a barrel part of the termination around the conductor
[461-19-01, mod.]
3.11
spring-clamp connection
terminal connection in which the pressure between the conductor and terminal is applied by a spring
3.12
penetration (connection)
terminal connection in which the contact with the conductor is achieved by jaws which penetrate the insulation
3.13
plug
connector intended to be coupled at the free end of an insulated conductor or cable, to be inserted into a
matching socket, or readily removed when required
3.14
socket
connector intended to be mounted on a rigid surface and to hold a matching plug, such that the conductors
contained within the socket make electrical contact individually with those in the plug
3.15
heat-shrinkable sleeve
plastic tube that on exposure to heat during installation, will at a critical temperature, permanently reduce in
diameter, while increasing in wall thickness
3.16
manufacturer
organisation that has the responsibility for the supply of vehicle(s), equipment or groups of equipment to the
purchaser
3.17
purchaser
organisation that orders the vehicle or equipment or groups of equipment and has the responsibility for direct
negotiations with the manufacturer
4 Abbreviations
EMC Electromagnetic compatibility
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5 Technical requirements
5.1 General requirements
Cables and installation materials shall be type tested, selected for size and installed so as to be suitable for
their function under their operating conditions. Size and installation of cables (or busbars) shall take into
account the particular stresses to be expected in rolling stock. The materials used and methods of cabling
shall be such as to prevent strain or chafing and excessive lengths of unsupported cable shall be avoided.
Cables on rolling stock shall not be used for any purpose other than for transmission, distribution and
collection of electrical energy, electrical controls or monitoring systems. All components of cabling shall be
selected, installed, protected, used and maintained so as to prevent danger (e.g. electrical or fire hazard,
EMC problems).
The electrical connections shall be made in such a way that they can not be unintentionally disconnected or
interrupted during service by thermal effects, dynamic loads as shock, vibration, car body motions, etc. that
are to be expected.
Where ambient conditions are considered, EN 50125-1 shall apply.
For protection against electrical hazard, the cabling installed shall be in accordance with EN 50153.
5.2 Selection of type and size of cables
5.2.1 General
When selecting cables or busbars the expected operating conditions should be taken into account. These
should include but are not limited to the following parameters:
- voltage;
- current;
- overload current;
- voltage drop;
- short circuit current;
- shape and frequency of current;
- fusing characteristic of the protection device;
- grouping of cables;
- ambient temperature and temperature due to load current;
- methods of installation;
- predicted cable lifetime;
- presence of rain or steam or snow or accumulation of condensing water;
- presence of corrosive, polluting or damaging substances;
- mechanical stresses;
- radiation such as sunlight.
Consideration should be given to the expected lifetime of the cabling compared with the expected lifetime of
the vehicle.
The cable type (i.e. cable family) shall be selected in accordance with EN 50264 or EN 50306 etc, as
applicable.
Once the cable type has been selected, the selection of conductor size when the cable is intended for power
distribution shall be based on either load current and current carrying capacity calculated in accordance with
5.2.3, or based on protection device size in accordance with 5.2.4.
Short circuit conditions should additionally be checked according to HD 384.4.43 S2. Recommended short
circuit ratings for rolling stock cables are given in EN 50355. Short circuit conditions and overload conditions
should be checked with respect to the fusing characteristic of the protection device and the resistance of the
chosen cable. See example in Figure 1.
NOTE 1 This short circuit or overload case should be checked according to
Normal load < nominal switching level of protection device < current carrying capacity of the cable (I , see definition in 5.2.3 b) ).
corr
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+
Power supply
Protection device
Short circuit Impedance of complete current path
Load
0V
Figure 1 – Example of short circuit condition where cable size will have influence on protection
device behaviour
The cross-sectional area of any conductor shall be not less than the value specified in 5.5.
Only cabling which conforms to the fire safety requirements specified in Clause 6 of EN 45545-1 and
EN 45545-5 shall be used.
NOTE 2 The number of different types of cables installed on any one type of vehicle should be minimized for practical reasons.
5.2.2 Selection of cable size for control cables
Control cables, which are intended to carry control signals only, shall have a minimum conductor cross-
sectional area as specified
...
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