SIST EN 50343:2014

SLOVENSKI STANDARD
oSIST prEN 50343:2012
01-junij-2012
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 50343:2012
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 50343:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50343:2012

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oSIST prEN 50343:2012
 DRAFT
EUROPEAN STANDARD
prEN 50343

NORME EUROPÉENNE
April 2012
EUROPÄISCHE NORM

ICS 45.060.01 Will supersede EN 50343:2003


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 draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2012-09-07.

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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey 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.


CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 22268 Ref. No. prEN 50343:2012 E

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oSIST prEN 50343:2012
prEN 50343:2012 – 2 –
1 Contents
2 Foreword . 5
3 1 Scope . 6
4 2 Normative references . 6
5 3 Terms and definitions . 8
6 4 Abbreviations . 10
7 5 Technical requirements . 10
8 5.1 General requirements . 10
9 5.2 Selection of type and size of cables . 10
10 5.3 Bundling of cables . 17
11 5.4 Flexibility of cables . 18
12 5.5 Minimum cross-sectional area of conductors . 18
13 5.6 Use of green and yellow colour . 18
14 5.7 Bending radii and other mechanical requirements . 19
15 5.8 Re-termination . 20
16 5.9 Busbars . 20
17 5.10 Connections to busbars . 21
18 5.11 Separation of cables with different voltage levels for safety reasons . 21
19 5.12 Provisions for refurbishment and maintenance, including inspection and repair . 22
20 5.13 Fire prevention, cable laying and cabling behaviour in case of fire . 23
21 5.14 Provision of spares . 24
22 5.15 Requirements for fixing . 24
23 5.16 Clearances and creepage distances . 25
24 5.17 Requirements for electrical terminations . 25
25 5.18 Use of heat-shrinkable sleeves . 28
26 5.19 Connections for return current . 28
27 5.20 Storage of cables . 28
28 5.21 Cable conduits . 29
29 5.22 Electrical bolted connections . 29
30 6 EMC requirements . 31
31 6.1 General . 31
32 6.2 Cable categories . 31
33 6.3 Separation of cables. 32
34 6.4 Return conductor . 33
35 6.5 Use of conductive structure . 33
36 6.6 Shielding and earthing . 33
37 6.7 Supply connection from battery . 33
38 6.8 Databus lines . 33
39 7 Marking for identification . 34
40 7.1 General . 34
41 7.2 Marking for identification of cables and busbars . 34
42 7.3 Marking for identification of terminal blocks, individual terminals, plugs and sockets . 35
43 7.4 Marking of insulators . 35
44 7.5 Marking for warning against electrical shock . 35
45 7.6 Marking using heat-shrinkable sleeves . 35
46 8 Testing . 35
47 8.1 General concerning testing . 35
48 8.2 Electrical insulation tests . 36
49 Annex A (normative) Cable sizing – Calculation of load current under short time load
50 conditions . 40
51 Annex B (informative) Cable sizing – Examples of current ratings . 42
52 Annex C (normative) Cable sizing – Calculating current ratings for temperature classes other
53 than 90 °C . 44

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54 Annex D (normative) Cable sizing – Correction factor k for expected ambient temperature . 45
1
55 Annex E (normative) Cable sizing – Prediction of cable lifetime . 46
56 Annex F (informative) Cable sizing – Calculation examples . 47
57 Annex G (informative) Terminations . 48
58 G.1 Methods of terminating cables . 48
59 G.2 Tensile strenght . 54
60 Annex H (normative) Tests on marking when using heat-shrinkable sleeves . 56
61 H.1 General . 56
62 H.2 Preparation of specimens . 56
63 H.3 Testing of specimens . 57
64 H.4 Result of test . 57
65 Annex I (informative) Effects of the number of earth connections to a cable screen . 58
66 Annex J (informative) Differences of electrochemical potentials between some conductive
67 
materials . 59
68 Annex K (informative) Locations on board rolling stock to be distinghuished . 60
69 Bibliography . 62
70
71 Figures
72 Figure 1 – Example of short circuit condition where cable size will have influence on protection device
73 behaviour . 11
74 Figure 2 – Cable grouping and installation conditions . 16
75 Figure 3 – Locations in rolling stock, concerning use of minimum cross-sectional areas for
76 conductors . 18
77 Figure 4 – Definition of internal bending radius . 19
78 Figure 5 – Examples of mechanical protecting of cabling . 20
79 Figure 6 – Separation of cables by required distance: D > 2 d and D > 0,1 m . 22
80 Figure 7 – Examples of separation of cables by barriers or by insulation . 22
81 Figure 8 – Dimensions for calculating the effective area of a contact (example for a cable lug) . 27
82 Figure 9 – Example of sequence order of elements belonging to a bolted connection (nut) . 30
83 Figure 10 – Example of sequence order of elements belonging to a bolted connection (bolt) . 31
84 Figure 11 – Examples of cable or plug constructions where identification is done by configuration . 34
85 Figure K.1 – Distinghuishing locations on board rolling stock . 60
86

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87 Tables
88 Table 1 – Modification factor k for individual conductors within a multi core cable . 14
5
89 Table 2 – Modification factor k for installation type (grouping and installation conditions) . 15
2
90 Table 3 – Selection of cable conductor size on the basis of rating of protection device . 17
91 Table 4 – Minimum internal bending radii R for static applications . 19
92 Table 5 – Example of division of cables into three categories for safety reasons . 21
93 Table 6 – Cable categories with respect to EMC . 32
94 Table 7 – Minimum distances between cables of different EMC categories . 32
95 Table 8 – Standard letter codes . 34
96 Table 9 – Test voltages according to on-board voltages . 38
97 Table 10 – Test voltages according to supply line voltages . 38
98 Table A.1 – Modification factor k . 41
4
99 Table B.1 – Examples of current ratings for standard wall cables, with 90 °C maximum conductor
100 operating temperature . 43
*
k
101 Table C.1 – Factor , used when comparing current ratings for 90 °C maximum conductor
102 operating temperature with other temperature classes . 44
103 Table D.1 – Modification factor k . 45
1
104 Table E.1 – Examples of values of correction factor k  to allow for decrease in predicted cable
3
105 lifetime . 46
106 Table G.1 – Methods of terminating cables – Conductor side . 48
107 Table G.2 – Methods of terminating cables – Terminal side – Crimp connections . 49
108 Table G.3 – Methods of terminating cables – Terminal side – Screwed and bolted connection . 51
109 Table G.4 – Methods of terminating cables – Terminal side – Connection by clamping . 52
110 Table G.5 – Methods of terminating cables – Terminal side – Connection by insulation displacement
111 or penetration . 53
112 Table G.6 – National standards for termination methods . 54
113 Table G.7 – Tensile strength for crimp connections . 55
114 Table H.1 – Preparation of heat-shrinkable sleeve for test of marking quality . 56
115 Table I.1 – Effects of shielding . 58
116 Table J.1 – Differences of electrochemical potentials between some conductive materials (in mV). 59
117

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118 Foreword
119 This document [prEN 50343:2012] has been prepared by CLC/SC 9XB "Electromechanical material on
120 board rolling stock".
121 This document is currently submitted to the Enquiry.
122 This document will supersede EN 50343:2003.
123 prEN 50343:2012 includes the following significant technical changes with respect to EN 50343:2003:
124 – references to other standards updated and harmonized;
125 – factor k concerning sizing of multi core cables introduced;
5
126 – factor k detailed, see Table 2;
2
127 – short time load detailed;
128 – mechanical aspects detailed;
129 – separation of cables due to safety reasons and EMC reasons harmonized;
130 – details added and changed concerning electrical and mechanical requirements for electrical terminations;
131 This document has been prepared under a mandate given to CENELEC by the European Commission
132 and the European Free Trade Association, and supports essential requirements of EU Directive(s).

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133 1 Scope
134 This European Standard specifies requirements for the installation of cabling on railway vehicles and
135 within electrical enclosures on railway vehicles, including magnetic levitation trains and trolley buses.
136 NOTE With respect to trolley buses, this European Standard applies to the whole electric traction system, including current
137 collecting circuits, power converters and the respective control circuits. The installation of other circuits is covered by street vehicle
138 standards for example those for combustion driven buses.
139 This European Standard covers cabling for making electrical connections between items of electrical
140 equipment, including cables, busbars, terminals and plug/socket devices. It does not cover special effect
141 conductors like fibre optic cables or hollow conductors (waveguides).
142 The material selection criteria given here are applicable to cables with a copper conductor.
143 This European Standard is not applicable to the following:
144 – special purpose vehicles, such as track-laying machines, ballast cleaners and personnel carriers;
145 – vehicles used for entertainment on fairgrounds;
146 – vehicles used in mining;
147 – electric cars;
148 – funicular railways.
149 As the field of cabling in rolling stock is also dealt with in the cable makers’ standard, references are made
150 to EN 50264 series, EN 50306 series, EN 50382 series and EN 50355.
151 This European Standard applies in conjunction with the relevant product and installation standards.
152 Stricter requirements than those given in this European Standard may be necessary.
153 2 Normative references
154 The following documents, in whole or in part, are normatively referenced in this document and are
155 indispensable for its application. For dated references, only the edition cited applies. For undated
156 references, the latest edition of the referenced document (including any amendments) applies.
157 CEN(CLC)/TS 45545 (all parts), Railway applications – Fire protection on railway vehicles
158 CEN/TS 45545-1:2009, Railway applications – Fire protection on railway vehicles – Part 1: General
159 CLC/TS 45545-5:2009, Railway applications – Fire protection on railway vehicles – Part 5: Fire safety
160 requirements for electrical equipment including that of trolley buses, track guided buses and magnetic
161 levitation vehicles
162 EN 50121-3-1, Railway applications – Electromagnetic compatibility – Part 3-1: Rolling stock – Train and
163 complete vehicle
164 EN 50121-3-2, Railway applications – Electromagnetic compatibility – Part 3-2: Rolling stock – Apparatus
165 EN 50124-1, Railway applications – Insulation coordination – Part 1: Basic requirements – Clearances
166 and creepage distances for all electrical and electronic equipment
167 EN 50125-1, Railway applications – Environmental conditions for equipment – Part 1: Equipment on board
168 rolling stock
169 EN 50153, Railway applications – Rolling stock – Protective provisions relating to electrical hazards

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170 EN 50200, Method of test for resistance to fire of unprotected small cables for use in emergency circuits
171 EN 50215:2009, Railway applications – Rolling stock – Testing of rolling stock on completion of
172 construction and before entry into service
173 EN 50264-1, Railway applications – Railway rolling stock power and control cables having special fire
174 performance – Part 1: General requirements
175 EN 50264-2-1, Railway applications – Railway rolling stock power and control cables having special fire
176 performance – Part 2-1: Cables with crosslinked elastomeric insulation – Single core cables
177 EN 50264-2-2, Railway applications – Railway rolling stock power and control cables having special fire
178 performance – Part 2-2: Cables with crosslinked elastomeric insulation – Multicore cables
179 EN 50264-3-1, Railway applications – Railway rolling stock power and control cables having special fire
180 performance – Part 3-1: Cables with crosslinked elastomeric insulation with reduced dimensions – Single
181 core cables
182 EN 50264-3-2, Railway applications – Railway rolling stock power and control cables having special fire
183 performance – Part 3-1: Cables with crosslinked elastomeric insulation with reduced dimensions –
184 Multicore cables
185 EN 50306-1, Railway applications – Railway rolling stock cables having special fire performance – Thin
186 wall – Part 1: General requirements
187 EN 50306-2, Railway applications – Railway rolling stock cables having special fire performance – Thin
188 wall – Part 2: Single core cables
189 EN 50306-3, Railway applications – Railway rolling stock cables having special fire performance – Thin
190 wall – Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathed
191 EN 50306-4, Railway applications – Railway rolling stock cables having special fire performance – Thin
192 wall – Part 4: Multicore and multipair cables standard wall sheathed
193 EN 50362, Method of test for resistance to fire of larger unprotected power and control cables for use in
194 emergency circuits
195 EN 50382-1, Railway applications – Railway rolling stock high temperature power cables having special
196 fire performance – Part 1: General requirements
197 EN 50382-2, Railway applications – Railway rolling stock high temperature power cables having special
198 fire performance – Part 2: Single core silicone rubber insulated cables for 120 °C or 150 °C
199 EN 50467, Railway applications – Rolling stock – Electrical connectors, requirements and test methods
1)
200 EN 50553 , Railway applications – Requirements for running capability in case of fire on board of rolling
201 stock
202 EN 60228, Conductors of insulated cables (IEC 60228)
203 EN 60684-3-212, Flexible insulating sleeving – Part 3: Specifications for individual types of sleeving –
204 Sheet 212: Heat-shrinkable polyolefin sleevings (IEC 60684-3-212)
205 EN 60684-3-216 , Flexible insulating sleeving – Part 3: Specifications for individual types of sleeving –
206 Sheet 216: Heat-shrinkable, flame-retarded, limited-fire hazard sleeving (IEC 60684-3-216)
2)
207 EN 60684-3-217 , Flexible insulating sleeving. Part 3: Specifications for individual types of sleeving –
208 Sheet 217: Heat-shrinkable polyolefin sleeving, flame retarded shrink ratio 3:1 (IEC 60684-3-217)

1) To be published.
2) EN 60684-3-217 is superseded by EN 60684-3-212:2006.

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209 EN 60684-3-271, Flexible insulating sleeving – Part 3: Specifications for individual types of sleeving –
210 Sheet 271: Heat-shrinkable elastomer sleeving, flame retarded, fluid resistant, shrink ratio 2:1
211 (IEC 60684-3-271)
212 EN 61180-1, High-voltage test techniques – Part 1: Definitions, test and procedure requirements
213 (IEC 61180-1)
214 HD 60364-5-54:2011, Low-voltage electrical installations – Part 5-54: Selection and erection of electrical
215 equipment – Earthing arrangements and protective conductors (IEC 60364-5-54:2011)
216 3 Terms and definitions
217 For the purposes of this document, the following terms and definitions apply.
218 3.1
219 cable
220 assembly consisting of
221 - one or more cores (screened or unscreened),
222 - their individual covering(s) (if any),
223 - assembly protection (if any),
224 - screen(s) (if any),
225 - sheath (if any)
226 [SOURCE: IEC 60050-461, 461-06-01, mod.]
227 3.2
228 conductor (of a cable)
229 part of a cable which has the specific function of carrying current
230 [SOURCE: IEC 60050-461, 461-01-01]
231 3.3
232 core
233 assembly comprising a conductor with its own insulation (and screens if any)
234 [SOURCE: IEC 60050-461, 461-04-04]
235 3.4
236 solid conductor
237 conductor consisting of a single wire
238 [SOURCE: IEC 60050-461, 461-01-06, mod.]
239 3.5
240 stranded conductor
241 conductor consisting of a number of individual wires or strands all or some of which generally have a
242 helical form
243 [SOURCE: IEC 60050-461, 461-01-07, mod.]
244 3.6
245 busbar
246 conductor consisting of a rigid metal profile

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247 3.7
248 screen (of a cable)
249 conducting layer(s) having the function of control of the electro magnetic field within the cable and/or to
250 protect the cable from external electro magnetic influences
251 [SOURCE: IEC 60050-461, 461-03-01, mod.]
252 3.8
253 bundle
254 group of cables tied together
255 3.9
256 bolted connection
257 connection in which the pressure to the conductor is applied by bolting
258 [SOURCE: IEC 60050-461, 461-19-05]
259 3.10
260 crimp
261 cable termination in which a permanent connection is made by applying pressure, inducing the
262 deformation or reshaping of a barrel part of the termination around the conductor
263 [SOURCE: IEC 60050-461, 461-19-01, mod.]
264 3.11
265 spring-clamp connection
266 terminal connection in which the pressure between the conductor and terminal is applied by a spring
267 3.12
268 penetration (connection)
269 terminal connection in which the contact with the conductor is achieved by jaws which penetrate the
270 insulation
271 3.13
272 plug
273 connector intended to be coupled at the free end of an insulated conductor or cable, to be inserted into a
274 matching socket, or readily removed when required
275 3.14
276 socket
277 connector intended to be mounted on a rigid surface and to hold a matching plug, such that the
278 conductors contained within the socket make electrical contact individually with those in the plug
279 3.15
280 heat-shrinkable sleeve
281 tube that on exposure to heat during installation, will at a critical temperatur
...