Railway applications - Rolling stock - Onboard lithium-ion traction batteries

IEC 62928:2017 specifies the design, operation parameters, safety recommendations, data exchange, routine and type tests, as well as marking and designation for onboard lithium-ion traction batteries for railway applications. Battery systems described in this document are used for the energy storage system (ESS) for the traction power of railway vehicles such as hybrid vehicles as defined in IEC 62864-1:2016.

Bahnanwendungen - Fahrzeuge - Lithium-Ionen-Traktionsbatterien

Applications ferroviaires - Matériel roulant - Batteries d'accumulateurs de traction embarquées au lithium-ion

L'IEC 62928:2017 spécifie la conception, les paramètres d'exploitation, les recommandations de sécurité, l'échange de données, les essais individuels de série et les essais de type, ainsi que le marquage et la désignation, pour batteries d'accumulateurs de traction embarquées au lithium-ion destinées aux applications ferroviaires. Les systèmes de batteries décrits dans le présent document sont utilisés dans le cadre du système de stockage de l'énergie afin de fournir une alimentation de traction aux véhicules ferroviaires tels que les véhicules hybrides définis dans l'IEC 62864-1:2016.

Železniške naprave - Oprema voznih sredstev - Vgrajene litij-ionske vlečne baterije

Ta dokument se uporablja za vgrajene litij-ionske vlečne baterije za železniške naprave. Ta dokument določa načrtovanje, parametre delovanja, varnostna priporočila, izmenjavo podatkov, rutinske in tipske preskuse ter označevanje in poimenovanje.
Baterijski sistemi, opisani v tem dokumentu, se uporabljajo za sisteme za shranjevanje energije (EES) za napajanje železniških vozil, kot so hibridna vozila, opredeljena v standardu IEC 62864-1:2016.
Pomožne baterije za napajanje samo pomožne opreme niso zajete.
Podkomponente znotraj baterijskih sistemov, npr. sistem za upravljanje baterij (BMS) in sistem za termalno upravljanje baterij (BTMS), so prav tako zajete v tem dokumentu.
Oprema za pretvorbo energije (npr. razsekalnik, pretvornik itd.), dušilke, kondenzatorji in stikalne naprave ne spadajo na področje uporabe tega dokumenta.
Splošne zahteve za sisteme za shranjevanje energije na vozilu so opisane v standardu IEC 62864-1:2016.
Ta dokument določa tehnologijo litij-ionskih baterij, vendar ne preprečuje uporabe drugih baterijskih tehnologij za uporabo kot vlečne baterije.
Hibridni sistem za shranjevanje energije, ki uporablja dve ali več tehnologij za shranjevanje energije, npr. vlečno baterijo in dvoplastne kondenzatorje, ni zajet v tem dokumentu.
Če se sistemi za shranjevanje energije na osnovi različnih tehnologij uporabljajo na istem železniškem vozilu in se upravljajo neodvisno, je vsak neodvisni sistem za shranjevanje energije zajet v svojem dokumentu.

General Information

Status
Published
Publication Date
12-Apr-2018
Current Stage
6060 - Document made available
Due Date
13-Apr-2018
Completion Date
13-Apr-2018

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SLOVENSKI STANDARD
SIST EN IEC 62928:2018
01-junij-2018

äHOH]QLãNHQDSUDYH2SUHPDYR]QLKVUHGVWHY9JUDMHQHOLWLMLRQVNHYOHþQHEDWHULMH

Railway applications - Rolling stock equipment - Onboard lithium-ion traction batteries

Ta slovenski standard je istoveten z: EN IEC 62928:2018
ICS:
29.220.99 'UXJLþOHQLLQEDWHULMH Other cells and batteries
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
SIST EN IEC 62928:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62928:2018
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SIST EN IEC 62928:2018
EUROPEAN STANDARD EN IEC 62928
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2018
ICS 45.060.01
English Version
Railway applications - Rolling stock - Onboard lithium-ion
traction batteries
(IEC 62928:2017)

Applications ferroviaires - Matériel roulant - Batteries Bahnanwendungen - Betriebsmittel auf Bahnfahrzeugen -

d'accumulateurs de traction embarquées au lithium-ion Lithium-Ionen-Traktionsbatterien auf Bahnfahrzeugen

(IEC 62928:2017) (IEC 62928:2017)

This European Standard was approved by CENELEC on 2018-01-11. 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 CEN-CENELEC

Management Centre 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
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

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62928:2018 E
---------------------- Page: 3 ----------------------
SIST EN IEC 62928:2018
EN IEC 62928:2018
European foreword

The text of document 9/2317/FDIS, future edition 1 of IEC 62928, prepared by IEC/TC 9 "Electrical

equipment and systems for railways" was submitted to the IEC-CENELEC parallel vote and approved

by CENELEC as EN IEC 62928:2018.
The following dates are fixed:
2018-10-13
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
2021-04-13
• latest date by which the national
standards conflicting with the
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 62928:2017 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60077-2 NOTE Harmonized as EN 60077-2.
IEC 60721-3-2 NOTE Harmonized as EN 60721-3-2.
IEC 61287-1 NOTE Harmonized as EN 61287-1.
IEC 61377:2016 NOTE Harmonized as EN 61377:2016 (not modified).
IEC 61434 NOTE Harmonized as EN 61434.
IEC 62133 Series NOTE Harmonized as EN 62133 Series.
IEC 62485-3 NOTE Harmonized as EN 62485-3.
ISO 13849-1 NOTE Harmonized as EN ISO 13849-1.
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SIST EN IEC 62928:2018
EN IEC 62928:2018
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-482 2004 International Electrotechnical Vocabulary - - -
Part 482: Primary and secondary cells and
batteries
IEC 60050-811 2017 International Electrotechnical Vocabulary - - -
Chapter 811: Electric traction
IEC 60051 series Direct acting indicating analogue electrical EN 60051 series
measuring instruments and their
accessories
IEC 60077-1 - Railway applications - Electric equipment EN 60077-1 -
for rolling stock - Part 1: General service
conditions and general rules
IEC 60077-5 - Railway applications - Electric equipment EN 60077-5 -
for rolling stock - Part 5: Electrotechnical
components - Rules for HV fuses
IEC 60529 - Degrees of protection provided by - -
enclosures (IP Code)
IEC 60571 - Railway applications - Electronic - -
equipment used on rolling stock
IEC 60850 - Railway applications - Supply voltages of - -
traction systems
IEC 61373 - Railway applications - Rolling stock EN 61373 -
equipment - Shock and vibration tests
IEC 61991 - Railway applications - Rolling stock - - -
Protective provisions against electrical
hazards
IEC 62236-3-2 - Railway applications - Electromagnetic - -
compatibility - Part 3-2: Rolling stock -
Apparatus
IEC 62278 2002 Railway applications - Specification and - -
demonstration of reliability, availability,
maintainability and safety (RAMS)
IEC 62279 - Railway applications - Communications, - -
signalling and processing systems -
Software for railway control and protection
systems
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SIST EN IEC 62928:2018
EN IEC 62928:2018
Publication Year Title EN/HD Year
IEC 62497-1 - Railway applications - Insulation - -
coordination - Part 1: Basic requirements -
Clearances and creepage distances for all
electrical and electronic equipment
IEC 62498-1 2010 Railway applications - Environmental - -
conditions for equipment - Part 1:
Equipment on board rolling stock
Secondary cells and batteries containing
IEC 62619 2017 EN 62619 2017
alkaline or other non-acid electrolytes -
Safety requirements for secondary lithium
cells and batteries, for use in industrial
applications
IEC 62620 2014 Secondary cells and batteries containing EN 62620 2015
alkaline or other non-acid electrolytes -
Secondary lithium cells and batteries for
use in industrial applications
IEC 62864-1 2016 Railway applications - Rolling stock - EN 62864-1 2016
Power supply with onboard energy storage
system - Part 1: Series hybrid system
ISO 7010 - Graphical symbols - Safety colours and EN ISO 7010 -
safety signs - Registered safety signs
ISO/IEC Guide 51 2014 Safety aspects - Guidelines for their - -
inclusion in standards
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SIST EN IEC 62928:2018
IEC 62928
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Rolling stock – Onboard lithium-ion traction batteries
Applications ferroviaires – Matériel roulant – Batteries d'accumulateurs de
traction embarquées au lithium-ion
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060.01 ISBN 978-2-8322-5019-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 62928:2018
– 2 – IEC 62928:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms, definitions and abbreviated terms ...................................................................... 10

3.1 Terms and definitions............................................................................................ 10

3.2 Abbreviated terms ................................................................................................. 17

4 Configuration of battery system ..................................................................................... 17

4.1 Battery system ...................................................................................................... 17

4.2 Battery pack/module ............................................................................................. 18

4.3 Battery management system (BMS) ...................................................................... 19

4.4 Battery thermal management system (BTMS) ....................................................... 20

5 Parameter measurement tolerances .............................................................................. 20

6 Operational conditions ................................................................................................... 20

6.1 General ................................................................................................................. 20

6.2 Mechanical conditions ........................................................................................... 21

6.3 Environmental conditions ...................................................................................... 21

6.3.1 General ......................................................................................................... 21

6.3.2 Ambient temperature ..................................................................................... 21

6.3.3 Temperature in battery enclosure .................................................................. 21

6.3.4 Temperature for life time calculation .............................................................. 21

6.4 Electrical conditions .............................................................................................. 21

6.4.1 Traction circuits ............................................................................................. 21

6.4.2 Control circuits .............................................................................................. 21

6.4.3 Insulation coordination ................................................................................... 22

6.5 Electromagnetic compatibility (EMC) ..................................................................... 22

6.6 Software ............................................................................................................... 22

7 Designation and marking ............................................................................................... 22

7.1 Nameplate ............................................................................................................ 22

7.2 Designations for cells and battery system ............................................................. 22

7.3 Marking ................................................................................................................. 23

7.3.1 General ......................................................................................................... 23

7.3.2 Battery pack/module and cells ....................................................................... 23

7.3.3 Other components ......................................................................................... 23

7.3.4 Additional information .................................................................................... 23

8 Safety requirements ...................................................................................................... 23

8.1 General safety consideration ................................................................................ 23

8.2 Safety signs .......................................................................................................... 24

8.2.1 Outside the battery box.................................................................................. 24

8.2.2 Inside the battery box .................................................................................... 24

8.3 Isolation for maintenance or service ...................................................................... 24

8.4 Fire protection ...................................................................................................... 25

9 Dimensions ................................................................................................................... 25

10 Electrical requirements .................................................................................................. 25

10.1 Operating voltage range of the battery system ...................................................... 25

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SIST EN IEC 62928:2018
IEC 62928:2017 © IEC 2017 – 3 –

10.2 Ripple current ....................................................................................................... 25

10.3 Charge and discharge control of the battery system .............................................. 25

10.4 Communication ..................................................................................................... 25

10.5 Starting of disabled battery system ....................................................................... 26

10.6 Insulation status.................................................................................................... 26

10.7 Battery management system (BMS) ...................................................................... 26

11 Mechanical requirement ................................................................................................ 26

11.1 Mechanical integration .......................................................................................... 26

11.2 Shock and vibration .............................................................................................. 26

11.3 Degree of protection ............................................................................................. 27

12 Performance requirement .............................................................................................. 27

12.1 Design energy and power calculation methodology ............................................... 27

12.1.1 General ......................................................................................................... 27

12.1.2 Sizing ............................................................................................................ 27

12.1.3 Documentation .............................................................................................. 28

12.2 Cooling / heating requirement ............................................................................... 28

12.3 End of life performance ......................................................................................... 28

13 Storage and transportation conditions............................................................................ 29

13.1 Transportation ...................................................................................................... 29

13.2 Storage of battery systems ................................................................................... 29

13.3 Self-discharge ....................................................................................................... 29

14 Tests ............................................................................................................................. 29

14.1 Kind of tests .......................................................................................................... 29

14.1.1 General ......................................................................................................... 29

14.1.2 Test categories .............................................................................................. 30

14.2 Electrical tests ...................................................................................................... 31

14.2.1 Electrical characteristics tests ....................................................................... 31

14.2.2 Battery management system (BMS) tests ...................................................... 32

14.2.3 Performance test ........................................................................................... 33

14.2.4 Endurance in cycles ...................................................................................... 34

14.2.5 Dielectric test ................................................................................................ 37

14.2.6 Self-discharge test ......................................................................................... 37

14.2.7 Operational balancing test ............................................................................. 39

14.3 Mechanical tests ................................................................................................... 40

14.3.1 Physical appearance ..................................................................................... 40

14.3.2 Mass measurement ....................................................................................... 40

14.3.3 Shock and vibration test ................................................................................ 40

14.3.4 Test of the degree of protection ..................................................................... 40

14.4 Safety tests ........................................................................................................... 40

14.4.1 Safety test according to IEC 62619:2017 ....................................................... 40

14.4.2 Special tests for rolling stock ......................................................................... 41

Annex A (informative) Examples of battery system configuration ......................................... 45

Annex B (informative) Examples of parameter ranges for additional high power cycling

tests ..................................................................................................................................... 49

Bibliography .......................................................................................................................... 50

Figure 1 – Hierarchy of standards related to IEC 62928 .......................................................... 8

Figure 2 – Functional block of battery system ....................................................................... 18

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SIST EN IEC 62928:2018
– 4 – IEC 62928:2017 © IEC 2017

Figure 3 – Illustration of definitions for cell, cell block and battery pack/module .................... 19

Figure 4 – Illustration of self-discharge test .......................................................................... 38

Figure A.1 – Example of configuration for contactor inside of the battery box ........................ 45

Figure A.2 – Examples of battery box configurations with the contactor outside battery box .. 47

Figure A.3 – Example of configuration of a BTMS outside of battery box ............................... 48

Figure A.4 – Example of configuration of a BMS and a BTMS included in another

system outside of battery box ............................................................................................... 48

Table 1 – List of tests ........................................................................................................... 30

Table B.1 – Examples of parameter ranges for additional high power cycling tests ............... 49

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SIST EN IEC 62928:2018
IEC 62928:2017 © IEC 2017 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS – ROLLING STOCK –
ONBOARD LITHIUM-ION TRACTION BATTERIES
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62928 has been prepared by IEC technical committee 9: Electrical

equipment and systems for railways.
The text of this standard is based on the following documents:
FDIS Report on voting
9/2317/FDIS 9/2329/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN IEC 62928:2018
– 6 – IEC 62928:2017 © IEC 2017

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 62928:2018
IEC 62928:2017 © IEC 2017 – 7 –
INTRODUCTION

In the 90s the market started developing mainly portable lithium technology batteries. Existing

standards for lithium-ion batteries currently focus on small portable batteries:

• IEC 61960-3:2017, Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Secondary lithium cells and batteries for portable applications – Part 3:

Prismatic and cylindrical lithium secondary cells and batteries made from them

• IEC 62133 (all parts): Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Safety requirements for portable sealed secondary cells, and for batteries

made from them, for use in portable applications.

These above mentioned documents do not cover large cells and batteries for industrial and

railway applications, which are non-portable and weigh hundreds of kilograms.

TC 21 and SC 21A decided to start work on large capacity lithium cells and batteries:

• IEC 62619:2017, Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Safety requirements for secondary lithium cells and batteries for use in

industrial applications,

• IEC 62620:2014, Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Secondary lithium cells and batteries for use in industrial applications.

The documents are often generic and mention railway applications only as an example.

Therefore, this document is developed for specifying the requirements for railway traction

applications.
In addition, TC 9 has developed the following document:

• IEC 62864-1:2016, Railway applications – Rolling stock – Power supply with onboard

energy storage system – Part 1: Series hybrid system

IEC 62864-1:2016 specifies the general requirements for the onboard energy storage system

as a system level. The hierarchy of standards is shown in Figure 1 of IEC 62864-1:2016.

It is part of a series of standards, referring to each other. The hierarchy of the standards used

in the railway specific area related to IEC 62928 is as follows:
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SIST EN IEC 62928:2018
– 8 – IEC 62928:2017 © IEC 2017
Overview of the technical framework
IEC 61133
- Level 1: vehicle/system interface
Railway applications – Rolling stock – Testing of
rolling stock on completion of construction and
before entry into service
IEC 62864-1
Railway applications – Rolling stock – Power
supply with onboard energy storage system –
Part 1: Series hybrid system
IEC 61377
Railway applications – Rolling stock – Combined
- Level 2: System and interfaces
test method for traction systems
- Level 3: Components
IEC 61287-1 IEC 60349 (all parts)
Railway applications – Power converters
Electrical traction – Rotating electrical machines
installed on board rolling stock – for rail and road vehicles
Part 1: Characteristics and test methods
- Level 4: Subcomponents
IEC 61881-3
IEC 62928
Railway applications – Rolling stock equipment –
Railway applications – Rolling stock equipment –
Capacitors for power electronics –
Onboard lithium-ion traction batteries
Part 3: Electric double-layer capacitors
IEC
Figure 1 – Hierarchy of standards related to IEC 62928
The standards listed in Figure 1 are not exhaustive.
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SIST EN IEC 62928:2018
IEC 62928:2017 © IEC 2017 – 9 –
RAILWAY APPLICATIONS – ROLLING STOCK –
ONBOARD LITHIUM-ION TRACTION BATTERIES
1 Scope

This document applies to onboard lithium-ion traction batteries for railway applications.

This document specifies the design, operation parameters, safety recommendations, data

exchange, routine and type tests, as well as marking and designation.

Battery systems described in this document are used for the energy storage system (ESS) for

the traction power of railway vehicles such as hybrid vehicles as defined in IEC 62864-1:2016.

Auxiliary batteries to supply power only to the auxiliary equipment are excluded.

Subcomponents within the battery systems, e.g. battery management system (BMS) and

battery therm
...

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