Railway applications - Rolling stock - Rules for installation of cabling

IEC 62995:2018 specifies requirements for the installation of cabling on railway vehicles and within electrical enclosures on railway vehicles, including magnetic levitation trains and trolley buses. This document covers cabling for making electrical connections between items of electrical equipment, including cables, busbars, terminals and plug/socket devices. The material selection criteria given herein are applicable to cables with copper conductors.

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

L'IEC 62995:2018 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 sustentation magnétique et les trolleybus. Le présent document décrit le câblage utilisé pour établir des liaisons électriques entre les différents équipements électriques, y compris les câbles, les jeux de barres, les bornes et les fiches/réceptacles. Les critères de choix des matériaux, énoncés ci-après, s'appliquent aux câbles à conducteurs en cuivre.

General Information

Status
Published
Publication Date
13-May-2018
Current Stage
PPUB - Publication issued
Start Date
11-May-2018
Completion Date
14-May-2018
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IEC 62995:2018 - Railway applications - Rolling stock - Rules for installation of cabling
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IEC 62995 ®
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Railway applications – Rolling stock – Rules for installation of cabling

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

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IEC 62995 ®
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Railway applications – Rolling stock – Rules for installation of cabling

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

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060.01 ISBN 978-2-8322-5640-4

– 2 – IEC 62995:2018  IEC 2018
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 12
4 Technical requirements . 12
4.1 General requirements . 12
4.2 Selection of type and size of cables . 12
4.2.1 General . 12
4.2.2 Selection of cable size for control cables . 14
4.2.3 Selection of cable size for cables for power distribution, on the basis of
continuous load current . 14
4.2.4 Selection of cable size for cables for power distribution, on the basis of
rating of protection device . 18
4.2.5 Motor cables . 19
4.2.6 Cables for protective bonding . 19
4.2.7 Cables used under short time current (below 5 s) . 19
4.3 Bundling of cables . 20
4.4 Flexibility of cables . 20
4.5 Minimum cross-sectional area of conductors . 20
4.6 Use of green and yellow colour . 21
4.7 Bending radii and other mechanical requirements . 21
4.8 Re-termination . 23
4.9 Busbars . 23
4.10 Connections to busbars . 24
4.11 Separation of cables with different voltage levels and for safety reasons . 24
4.12 Provisions for refurbishment and maintenance, including inspection and
repair . 25
4.13 Fire prevention, cable laying and cabling behaviour in case of fire . 26
4.14 Provision of spares . 27
4.14.1 Provision of spares for control cabling . 27
4.14.2 Provision of spares for auxiliary power distribution cabling . 27
4.15 Requirements for fixing . 28
4.16 Clearances and creepage distances . 28
4.17 Requirements for electrical terminations . 29
4.17.1 General . 29
4.17.2 Electrical terminations at the cable ends . 29
4.17.3 Electrical terminations at the terminal or device side . 30
4.18 Use of heat-shrinkable sleeves . 31
4.19 Connections for return current . 32
4.20 Storage of cables . 32
4.21 Cable conduits . 32
4.22 Electrical bolted connections . 33
5 EMC requirements . 35
5.1 General . 35
5.2 Cable categories . 35

5.3 Separation of cables . 36
5.4 Return conductor . 36
5.5 Use of conductive structure . 37
5.6 Shielding and earthing . 37
5.7 Supply connection from battery . 37
5.8 Databus lines . 37
6 Marking for identification . 38
6.1 General . 38
6.2 Marking for identification of cables and busbars . 38
6.3 Marking for identification of terminal blocks, individual terminals, plugs and
sockets . 39
6.4 Marking of insulators . 39
6.5 Marking for warning against electrical shock . 39
6.6 Marking using heat-shrinkable sleeves . 39
7 Testing . 39
7.1 General concerning testing . 39
7.2 Electrical insulation tests . 40
7.2.1 General . 40
7.2.2 Voltage withstand test . 40
7.2.3 Insulation impedance test . 42
Annex A (normative) Cable sizing – Calculation under short time current conditions . 43
Annex B (informative) Cable sizing – Examples of current ratings . 44
Annex C (normative) Cable sizing – Calculating current ratings for temperature
classes other than 90 °C
...

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