oSIST prEN 50343:2023
(Main)Railway applications - Rolling stock - Rules for installation of cabling
Railway applications - Rolling stock - Rules for installation of cabling
This document 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 document 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 document 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 copper conductors.
This document 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 series, EN 50306 series, EN 50382 series and EN 50355.
This document applies in conjunction with the relevant product and installation standards. Stricter requirements than those given in this document may be necessary.
Bahnanwendungen - Fahrzeuge - Regeln für die Installation von elektrischen Leitungen
Applications ferroviaires - Matériel roulant - Règles d'installation du câblage
Le présent document définit les exigences relatives à l’installation du câblage sur les véhicules ferroviaires et dans les compartiments électriques sur les véhicules ferroviaires, y compris les trains à lévitation magnétique et les trolleybus.
NOTE En ce qui concerne les trolleybus, le présent document s'applique à l'ensemble du système de traction électrique, y compris les circuits de captage du courant, les convertisseurs de puissance et leurs circuits de commande respectifs. L’installation des autres circuits est traitée par les normes consacrées aux véhicules routiers, par exemple, celles traitant des autobus à moteur à combustion.
Le présent document traite du câblage utilisé pour établir des liaisons électriques entre les divers équipements électriques, y compris les câbles, jeux de barres, bornes et connecteurs mobiles/fixes. Il ne prend pas en compte les conducteurs reposant sur des effets spéciaux, tels que les câbles à fibres optiques ou les conducteurs creux (guides d'ondes).
Les critères de sélection des matériaux, énoncés ci-après, sont applicables aux câbles dotés de conducteurs en cuivre.
Le présent document ne s'applique pas à ce qui suit :
– véhicules à usage spécial, tels que machines de pose de voie, de nettoyage de ballast et de transport du personnel ;
– véhicules utilisés à des fins de loisirs sur les champs de foire ;
– véhicules de mines ;
– véhicules électriques ;
– funiculaires.
Comme le domaine du câblage dans le matériel roulant est aussi traité dans les normes des câbliers, référence est faite aux normes des séries EN 50264, EN 50306, EN 50382 et à la norme EN 50355.
Le présent document s'applique en association avec les normes de produit et d'installation appropriées. Des exigences plus strictes que celles édictées dans le présent document, peuvent s'avérer nécessaires.
Železniške naprave - Vozna sredstva - Pravila za inštaliranje kablov
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 50343:2023
01-september-2023
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: prEN 50343
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 50343:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50343:2023
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oSIST prEN 50343:2023
EUROPEAN STANDARD DRAFT
prEN 50343
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2023
ICS 45.060.01 Will supersede EN 50343:2014; EN 50343:2014/A1:2017
English Version
Railway applications - Rolling stock - Rules for installation of
cabling
Applications ferroviaires - Matériel roulant - Règles Bahnanwendungen - Fahrzeuge - Regeln für die Installation
d'installation du câblage von elektrischen Leitungen
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2023-09-29.
It has been drawn up by CLC/SC 9XB.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 74650 Ref. No. prEN 50343 E
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prEN 50343:2023
Contents Page
10 European foreword . 4
11 1 Scope . 5
12 2 Normative references . 5
13 3 Terms, definitions and abbreviations . 6
14 3.1 Terms and definitions . 7
15 3.2 Abbreviations . 9
16 4 Technical requirements . 9
17 4.1 General requirements . 9
18 4.2 Selection of type and size of cables . 9
19 4.3 Bundling of cables . 17
20 4.4 Flexibility of cables . 17
21 4.5 Minimum cross-sectional area of conductors . 17
22 4.6 Use of green and yellow colour . 18
23 4.7 Bending radii and other mechanical requirements . 18
24 4.8 Re-termination . 20
25 4.9 Busbars . 20
26 4.10 Connections to busbars . 20
27 4.11 Separation of cables with different voltage levels and for safety reasons . 20
28 4.12 Provisions for refurbishment and maintenance, including inspection and repair . 22
29 4.13 Fire prevention, cable laying and cabling behaviour in case of fire . 23
30 4.14 Provision of spares . 23
31 4.15 Requirements for fixing . 24
32 4.16 Clearances and creepage distances . 25
33 4.17 Requirements for electrical terminations . 25
34 4.18 Use of heat-shrinkable sleeves . 28
35 4.19 Connections for return current . 28
36 4.20 Storage of cables . 29
37 4.21 Cable conduits . 29
38 4.22 Electrical bolted connections . 29
39 5 EMC requirements . 32
40 5.1 General . 32
41 5.2 Cable categories . 32
42 5.3 Separation of cables . 32
43 5.4 Return conductor . 33
44 5.5 Use of conductive structure . 33
45 5.6 Shielding and earthing . 33
46 5.7 Supply connection from battery . 34
47 5.8 Databus lines . 34
48 6 Marking for identification . 34
49 6.1 General . 34
50 6.2 Marking for identification of cables and busbars . 34
51 6.3 Marking for identification of terminal blocks, individual terminals, plugs and sockets . 35
52 6.4 Marking of insulators . 35
53 6.5 Marking for warning against electrical shock . 35
54 6.6 Marking using heat-shrinkable sleeves . 35
55 7 Testing . 35
56 7.1 General concerning testing . 35
57 7.2 Electrical insulation tests . 36
58 Annex A (normative) Cable sizing – Calculation under short time current conditions . 39
59 Annex B (informative) Cable sizing – Examples of current ratings . 40
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60 Annex C (normative) Cable sizing – Calculating current ratings for temperature classes
61 other than 90 °C. 42
62 Annex D (normative) Cable sizing – Correction factor k for expected ambient temperature . 43
1
63 Annex E (normative) Cable sizing - Cable lifetime expectation . 44
64 E.1 General cable lifetime considerations . 44
65 E.2 Reducing cable lifetime . 45
66 E.3 Increasing cable lifetime . 46
67 Annex F (informative) Cable sizing – Calculation examples . 47
68 F.1 Cables sizing calculation examples . 47
69 F.2 Cables sizing calculation recommendation . 49
70 Annex G (informative) Terminations . 51
71 G.1 Methods of terminating cables . 51
72 G.2 Tensile strength test values . 57
73 Annex H (normative) Tests on marking when using heat-shrinkable sleeves . 59
74 H.1 General . 59
75 H.2 Preparation of specimens . 59
76 H.3 Testing of specimens . 59
77 H.4 Result of test . 60
78 Annex I (informative) Effects of the number of earth connections to a cable screen . 61
79 Annex J (informative) Differences of electrochemical potentials between some conductive
80 materials . 62
81 Annex K (informative) Locations on board rolling stock to be distinguished . 64
82 Annex L (informative) Information about comparison between fire behaviour of cables in
83 EN 45545-2 and IEC 62995 . 67
84 Bibliography . 69
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85 European foreword
86 This document (prEN 50343:2023) has been prepared by CLC/SC 9XB "Electromechanical material on
87 board rolling stock".
88 This document is currently submitted to the Enquiry.
89 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
90 This document will supersede EN 50343:2014.
91 prEN 50343:2023 includes the following significant technical changes with respect to EN 50343:2014:
92 – references to EN standards updated and harmonized;
93 – modification based on IEC 62995;
94 – mechanical aspects detailed;
95 – cable lifetime considerations in accordance with Arrhenius.
96 This document has been prepared under a mandate given to CENELEC by the European Commission
97 and the European Free Trade Association.
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98 1 Scope
99 This document specifies requirements for the installation of cabling on railway vehicles and within
100 electrical enclosures on railway vehicles, including magnetic levitation trains and trolley buses.
101 NOTE With respect to trolley buses, this document applies to the whole electric traction system, including
102 current collecting circuits, power converters and the respective control circuits. The installation of other circuits is
103 covered by street vehicle standards for example those for combustion driven buses.
104 This document covers cabling for making electrical connections between items of electrical equipment,
105 including cables, busbars, terminals and plug/socket devices. It does not cover special effect conductors
106 like fibre optic cables or hollow conductors (waveguides).
107 The material selection criteria given here are applicable to cables with copper conductors.
108 This document is not applicable to the following:
109 – special purpose vehicles, such as track-laying machines, ballast cleaners and personnel carriers;
110 – vehicles used for entertainment on fairgrounds;
111 – vehicles used in mining;
112 – electric cars;
113 – funicular railways.
114 As the field of cabling in rolling stock is also dealt with in the cable makers’ standard, references are
115 made to EN 50264 series, EN 50306 series, EN 50382 series and EN 50355.
116 This document applies in conjunction with the relevant product and installation standards. Stricter
117 requirements than those given in this document may be necessary.
118 2 Normative references
119 The following documents are referred to in the text in such a way that some or all of their content
120 constitutes requirements of this document. For dated references, only the edition cited applies. For
121 undated references, the latest edition of the referenced document (including any amendments) applies.
122 EN 45545 (all parts), Railway applications - Fire protection on railway vehicles
123 EN 45545-1, Railway applications - Fire protection on railway vehicles - Part 1: General
124 EN 45545-2, Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire
125 behaviour of materials and components
126 EN 45545-5, Railway applications – Fire protection on railway vehicles - Part 5: Fire safety requirements
127 for electrical equipment including that of trolley buses, track guided buses and magnetic levitation
128 vehicles
129 EN 50121-3-1, Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock - Train and
130 complete vehicle
131 EN 50121-3-2, Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
132 EN 50124-1, Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances
133 and creepage distances for all electrical and electronic equipment
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134 EN 50125-1, Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and
135 on-board equipment
136 EN 50153, Railway applications - Rolling stock - Protective provisions relating to electrical hazards
137 EN 50264 (all parts), Railway applications - Railway rolling stock power and control cables having
138 special fire performance
139 EN 50306 (all parts), Railway applications - Railway rolling stock cables having special fire
140 performance - Thin wall
141 EN 50355:2013, Railway applications - Railway rolling stock cables having special fire performance -
142 Guide to use
143 EN 50382 (all parts), Railway applications - Railway rolling stock high temperature power cables having
144 special fire performance
145 EN 50467:2011, Railway applications - Rolling stock - Electrical connectors, requirements and test
146 methods
147 EN 50553, Railway applications - Requirements for running capability in case of fire on board of rolling
148 stock
149 EN 60228, Conductors of insulated cables (IEC 60228)
150 EN 60423, Conduit systems for cable management - Outside diameters of conduits for electrical
151 installations and threads for conduits and fittings (IEC 60423)
152 EN 60684-3-212, Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving -
153 Sheet 212: Heat-shrinkable polyolefin sleevings (IEC 60684-3-212)
154 EN IEC 60684-3-216, Flexible insulating sleeving - Part 3: Specifications for individual types of
155 sleeving - Sheet 216: Heat-shrinkable, flame-retarded, limited-fire hazard sleeving (IEC 60684-3-216)
156 EN 60684-3-271, Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving -
157 Sheet 271: Heat-shrinkable elastomer sleevings, flame retarded, fluid resistant, shrink ratio 2:1
158 (IEC 60684-3-271)
159 EN 61180, High-voltage test techniques for low-voltage equipment - Definitions, test and procedure
160 requirements, test equipment (IEC 61180)
161 EN 61386-1, Conduit systems for cable management - Part 1: General requirements (IEC 61386-1)
1
162 HD 60364-5-54:2011, Low-voltage electrical installations - Part 5-54: Selection and erection of
163 electrical equipment - Earthing arrangements and protective conductors (IEC 60364-5-54:2011)
164 3 Terms, definitions and abbreviations
165 For the purposes of this document, the following terms and definitions apply.
166 ISO and IEC maintain terminology databases for use in standardization at the following addresses:
167 — ISO Online browsing platform: available at https://www.iso.org/obp/
168 — IEC Electropedia: available at https://www.electropedia.org/
1
As impacted by HD 60364-5-54:2011/A1:2022.
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169 3.1 Terms and definitions
170 3.1.1
171 cable
172 assembly consisting of
173 — one or more cores (screened or unscreened),
174 — their individual covering(s) (if any),
175 — assembly protection (if any),
176 — screen(s) (if any),
177 — sheath (if any)
178 [SOURCE: IEC 60050-461, 461-06-01, mod.]
179 3.1.2
180 conductor
181 part of a cable which has the specific function of carrying current
182 [SOURCE: IEC 60050-461:2008, 461-01-01]
183 3.1.3
184 core
185 assembly comprising a conductor with its own insulation (and screens if any)
186 [SOURCE: IEC 60050-461:2008, 461-04-04]
187 3.1.4
188 solid conductor
189 conductor consisting of a single wire
190 [SOURCE: IEC 60050-461:2008, 461-01-06, mod.]
191 3.1.5
192 stranded conductor
193 conductor consisting of a number of individual wires or strands all or some of which generally have a
194 helical form
195 [SOURCE: IEC 60050-461:2008, 461-01-07, mod.]
196 3.1.6
197 busbar
198 conductor consisting of a rigid metal profile
199 3.1.7
200 screen
201 conducting layer(s) having the function of control of the electro magnetic field within the cable and/or to
202 protect the cable from external electro magnetic influences
203 [SOURCE: IEC 60050-461, 461-03-01, mod.]
204 3.1.8
205 bundle
206 group of cables tied together
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207 3.1.9
208 bolted connection
209 connection in which the pressure to the conductor is applied by bolting
210 [SOURCE: IEC 60050-461:2008, 461-19-05]
211 3.1.10
212 crimp
213 cable termination in which a permanent connection is made by applying pressure, inducing the
214 deformation or reshaping of a barrel part of the termination around the conductor
215 [SOURCE: IEC 60050-461, 461-19-01, mod.]
216 3.1.11
217 spring-clamp connection
218 terminal connection in which the pressure between the conductor and terminal is applied by a spring
219 3.1.12
220 penetration
221 terminal connection in which the contact with the conductor is achieved by jaws which penetrate the
222 insulation
223 3.1.13
224 plug
225 connector intended to be coupled at the free end of an insulated conductor or cable, to be inserted into a
226 matching socket, or readily removed when required
227 3.1.14
228 socket
229 connector intended to be mounted on a rigid surface and to hold a matching plug, such that the
230 conductors contained within the socket make electrical contact individually with those in the plug
231 3.1.15
232 heat-shrinkable sleeve
233 tube that on exposure to heat during installation, will at a critical temperature, permanently reduce in
234 diameter, while increasing in wall thickness
235 3.1.16
236 manufacturer
237 organisation that has the responsibility for the supply of vehicle(s), equipment or groups of equipment to
238 the purchaser
239 3.1.17
240 purchaser
241 organisation that orders the vehicle or equipment or groups of equipment and has the responsibility for
242 direct negotiations with the manufacturer
243 3.1.18
244 cable tie
245 mechanical construction needed for either keeping cables or assemblies of cables together, or for
246 attaching them in a defined place
247 3.1.19
248 short time current
249 certain operation case where an electrical circuit carries a current that will introduce an amount of heat
250 into the electrical circuit, which in general will increase its temperature
251 Note 1 to entry: “Short time” means that the heat exchange against the surrounding material is not significant.
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252 3.2 Abbreviations
253 For the purposes of this document, the following abbreviations apply.
EMC Electromagnetic compatibility
CSA Cross sectional area
IP Ingress protection
UV Ultraviolet
rms root mean square
254 4 Technical requirements
255 4.1 General requirements
256 Cables and installation materials shall be type tested, selected for size and installed so as to be suitable
257 for their function under their operating conditions. Size and installation of cables (including busbars and
258 bare conductors) shall take into account the particular stresses to be expected in rolling stock. The
259 materials used and methods of cabling shall be such as to prevent strain or chafing and excessive
260 lengths of unsupported cable shall be avoided.
261 Cables on rolling stock shall not be used for any purpose other than for transmission, distribution and
262 collection of electrical energy, electrical controls or monitoring systems. All components of cabling shall
263 be selected, installed, protected, used and maintained so as to prevent danger (e.g. electrical or fire
264 hazard, EMC problems).
265 The electrical connections shall be made in such a way that they cannot be unintentionally disconnected
266 or interrupted during service.
267 Effects that have impact on electrical connections and should be considered are at least:
268 – the thermal effects,
269 – the dynamic loads, as shock, vibration, car-body motions, and
270 – the material creepage.
271 The working conditions of the connections, and especially electrical characteristics and maximum
272 temperatures, must be considered to define cables and their installation and usage (peak currents,
273 etc…).
274 For consideration of environmental conditions, EN 50125-1 shall apply.
275 When considering operating conditions and environmental conditions, the locations as presented in
276 Annex K (informative) should be taken into account.
277 Conductors and cables shall be installed in such way that any humidity or water flowing along them shall
278 not be able to reach any cable entry (connector, cable gland, etc…) into the sealed cabinet.
279 For correct use of connectors, EN 50467:2011 shall apply.
280 For protection against electrical hazards, the cabling installed shall be in accordance with EN 50153.
281 4.2 Selection of type and size of cables
282 4.2.1 General
283 When selecting cables or busbars, the expected operating conditions should be taken into account.
284 These should include, but are not limited to, the following parameters:
285 – voltage;
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286 – current;
287 – higher harmonics by electronical converters (skin-effect);
288 – overload current;
289 – short time current;
290 – voltage drop;
291 – short-circuit current;
292 – shape and frequency of current;
293 – fusing characteristic of the protection device;
294 – grouping of cables;
295 – ambient temperature and temperature due to load current;
296 – methods of installation;
297 – predicted cable lifetime;
298 – presence of rain or steam or snow, or accumulation of condensing water;
299 – presence of corrosive, polluting or damaging substances;
300 – mechanical stresses;
301 – radiation such as sunlight.
302 Consideration should be given to the expected lifetime of the cabling compared with the expected
303 lifetime of the vehicle.
304 The cable type (i.e. cable family) shall be selected in accordance with EN 50264 series, EN 50382
305 series or EN 50306 series, as applicable.
306 Once the cable type has been selected, the selection of conductor size for normal load shall be
307 determined based on the methods specified in 4.2.2. up to 4.2.6. For cables intended for power
308 distribution two methods are available: the selection of conductor size if the cable is intended for power
309 distribution shall be based on either load current and current carrying capacity calculated in accordance
310 with 4.2.3 or based on protection device size in accordance with 4.2.4.
311 The conductor size shall also be checked in relation to short-circuit conditions and overload conditions.
312 These should be checked with respect to the fusing characteristic of the protection device and the
313 resistance of the chosen cable. See the example in Figure 1.
314 The switching level of the protection device shall be below the short time current carrying capacity of the
315 cable (see 4.2.7).
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316
317 Figure 1 — Example of short-circuit condition
318 w
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