Safety requirements for secondary batteries and battery installations - Part 5: Safe operation of stationary lithium ion batteries

IEC 62485-5:2020 applies to the installation of one or more stationary secondary batteries having a maximum aggregate DC voltage of 1 500 V to any DC part of the power network, and describes the principal measures for protections during normal operation or under expected fault conditions against hazards generated from: – electricity, – short-circuits, – electrolyte, – gas emission, – fire, – explosion. This document provides requirements on safety aspects associated with the installation, use, inspection, and maintenance and disposal of lithium ion batteries used in stationary applications.

Sicherheitsanforderungen an sekundäre Batterien und Batterieanlagen - Teil 5: Sicherer Betrieb von stationären Lithium-Ionen-Batterien

Exigences de sécurité pour les batteries d'accumulateurs et les installations de batteries – Partie 5: Fonctionnement en toute sécurité des batteries ions-lithium stationnaires

L'IEC 62485-5:2020 s'applique à l'installation d'une ou de plusieurs batteries d'accumulateurs stationnaires ayant une tension continue cumulée maximale de 1 500 V sur toute partie sous tension continue du réseau d'alimentation, et décrit les principales mesures de protection en fonctionnement normal ou dans des conditions de défaut prévues contre les dangers engendrés par: – l'électricité, – les courts-circuits, – l'électrolyte, – les émissions gazeuses, – le feu, – l'explosion. Le présent document fournit les exigences concernant les aspects de sécurité associés à l'installation, l'utilisation, le contrôle, la maintenance et la mise au rebut des batteries ions-lithium utilisées dans des applications stationnaires.

Varnostne zahteve za sekundarne baterije in baterijske naprave - 5. del: Varnostne zahteve za nepremične litij-ionske baterije

General Information

Status
Published
Current Stage
6060 - Document made available
Due Date
15-Jan-2021
Completion Date
15-Jan-2021

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SLOVENSKI STANDARD
SIST EN IEC 62485-5:2021
01-marec-2021

Varnostne zahteve za sekundarne baterije in baterijske naprave - 5. del: Varnostne

zahteve za nepremične litij-ionske baterije

Safety requirements for secondary batteries and battery installations - Part 5: Safe

operation of stationary lithium-ion batteries
Ta slovenski standard je istoveten z: EN IEC 62485-5:2021
ICS:
29.220.20 Kislinski sekundarni členi in Acid secondary cells and
baterije batteries
29.220.30 Alkalni sekundarni členi in Alkaline secondary cells and
baterije batteries
SIST EN IEC 62485-5:2021 en

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

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SIST EN IEC 62485-5:2021
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SIST EN IEC 62485-5:2021
EUROPEAN STANDARD EN IEC 62485-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2021
ICS 29.220.20; 29.220.30
English Version
Safety requirements for secondary batteries and battery
installations - Part 5: Safe operation of stationary lithium ion
batteries
(IEC 62485-5:2020)

Exigences de sécurité pour les batteries d'accumulateurs et Sicherheitsanforderungen an sekundäre Batterien und

les installations de batteries - Partie 5: Fonctionnement en Batterieanlagen - Teil 5: Sicherer Betrieb von stationären

toute sécurité des batteries ions-lithium stationnaires Lithium-Ionen-Batterien
(IEC 62485-5:2020) (IEC 62485-5:2020)

This European Standard was approved by CENELEC on 2020-12-30. 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, 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,

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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62485-5:2021 E
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SIST EN IEC 62485-5:2021
EN IEC 62485-5:2021 (E)
European foreword

The text of document 21/1069/FDIS, future edition 1 of IEC 62485-5, prepared by IEC/TC 21

"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by

CENELEC as EN IEC 62485-5:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-09-30

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-12-30

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 62485-5:2020 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 60065 NOTE Harmonized as EN 60065
IEC 60079-10-1 NOTE Harmonized as EN 60079-10-1
IEC 60364-1 NOTE Harmonized as HD 60364-1
IEC 60364-4-42 NOTE Harmonized as HD 60364-4-42
IEC 60364-5-54 NOTE Harmonized as HD 60364-5-54
IEC 60364-7-706 NOTE Harmonized as HD 60364-7-706
IEC 60695-11-20 NOTE Harmonized as EN 60695-11-20
IEC 60695-11-10 NOTE Harmonized as EN 60695-11-10
IEC 60900 NOTE Harmonized as EN IEC 60900
IEC 60950-1 NOTE Harmonized as EN 60950-1
IEC 60990 NOTE Harmonized as EN 60990
IEC 61000-4-2 NOTE Harmonized as EN 61000-4-2
IEC 61000-6-5 NOTE Harmonized as EN 61000-6-5
ISO 9773 NOTE Harmonized as EN ISO 9773
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SIST EN IEC 62485-5:2021
EN IEC 62485-5:2021 (E)
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 - International Electrotechnical Vocabulary - -
- Part 482: Primary and secondary cells
and batteries

IEC 60364-4-41 2005 Low-voltage electrical installations - Part HD 60364-4-41 2017

(mod) 4-41: Protection for safety - Protection
against electric shock
+A1 2017 + A11 2017
- - + A12 2019
IEC 60364-4-43 - IEC 60364-4-43 Ed. 4: Low-voltage - -
electrical installations - Part 4-43:
Protection for safety - Protection against
overcurrent
IEC 60364-5-53 - Low-voltage electrical installations - Part - -
5-53: Selection and erection of electrical
equipment - Protection, isolation,
switching, control and monitoring
IEC 60364-5-54 - Low-voltage electrical installations - Part HD 60364-5-54 -
5-54: Selection and erection of electrical
equipment - Earthing arrangements and
protective conductors
IEC 60417 - Graphical symbols for use on equipment. - -
Index, survey and compilation of the
single sheets.
IEC 60529 - Degrees of protection provided by - -
enclosures (IP Code)
IEC 60664-1 2020 Insulation coordination for equipment EN IEC 60664-1 2020
within low-voltage supply systems -
Part 1: Principles, requirements and
tests
IEC 60755 - General safety requirements for residual - -
current operated protective devices
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SIST EN IEC 62485-5:2021
EN IEC 62485-5:2021 (E)
Publication Year Title EN/HD Year
IEC 61000-1-2 - Electromagnetic compatibility (EMC) - EN 61000-1-2 -
Part 1-2: General - Methodology for the
achievement of functional safety of
electrical and electronic systems
including equipment with regard to
electromagnetic phenomena
IEC 61000-6-1 - Electromagnetic compatibility (EMC) - EN IEC 61000-6-1 -
Part 6-1: Generic standards - Immunity
standard for residential, commercial and
light-industrial environments
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN IEC 61000-6-2 -
Part 6-2: Generic standards - Immunity
standard for industrial environments
IEC 61000-6-3 - Electromagnetic compatibility (EMC) - EN IEC 61000-6-3 -
Part 6-3: Generic standards - Emission
standard for equipment in residential
environments
IEC 61000-6-4 - Electromagnetic compatibility (EMC) - EN IEC 61000-6-4 -
Part 6-4: Generic standards - Emission
standard for industrial environments
IEC 61000-6-7 - Electromagnetic compatibility (EMC) - EN 61000-6-7 -
Part 6-7: Generic standards - Immunity
requirements for equipment intended to
perform functions in a safety-related
system (functional safety) in industrial
locations
IEC 61140 - Protection against electric shock - EN 61140 -
Common aspects for installation and
equipment
IEC/TR 61340-1 - Electrostatics - Part 1: Electrostatic - -
phenomena - Principles and
measurements
IEC 61340-5-1 - Electrostatics - Part 5-1: Protection of EN 61340-5-1 -
electronic devices from electrostatic
phenomena - General requirements
IEC 61660-1 - Short-circuit currents in d.c. auxiliary EN 61660-1 -
installations in power plants and
substations - Part 1: Calculation of short-
circuit currents
IEC 61660-2 - Short-circuit currents in d.c. auxiliary EN 61660-2 -
installations in power plants and
substations - Part 2: Calculation of
effects
IEC 62133-2 - Secondary cells and batteries containing EN 62133-2 -
alkaline or other non-acid electrolytes -
Safety requirements for portable sealed
secondary lithium cells, and for batteries
made from them, for use in portable
applications - Part 2: Lithium systems
To be published. Stage at the time of publication: prEN IEC 61000-6-3:2019.
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SIST EN IEC 62485-5:2021
EN IEC 62485-5:2021 (E)
Publication Year Title EN/HD Year
IEC 62485-1 - Safety requirements for secondary EN IEC 62485-1 -
batteries and battery installations -
Part 1: General safety information
IEC 62619 2017 Secondary cells and batteries containing 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
ISO/IEC Guide 51 - Safety aspects - Guidelines for their - -
inclusion in standards
ISO 3864 series Graphical symbols - Safety colours and - -
safety signs
ISO 7010 - Graphical symbols - Safety colours and - -
safety signs - Registered safety signs
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SIST EN IEC 62485-5:2021
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SIST EN IEC 62485-5:2021
IEC 62485-5
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety requirements for secondary batteries and battery installations –
Part 5: Safe operation of stationary lithium ion batteries
Exigences de sécurité pour les batteries d'accumulateurs et les installations
de batteries –
Partie 5: Fonctionnement en toute sécurité des batteries ions-lithium
stationnaires
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.20; 29.220.30 ISBN 978-2-8322-9091-0

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 62485-5:2021
– 2 – IEC 62485-5:2020 © IEC 2020
CONTENTS

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

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

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

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

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

3.2 Abbreviated terms ................................................................................................. 14

4 Protection against electric shock ................................................................................... 14

4.1 General ................................................................................................................. 14

4.2 Basic protection .................................................................................................... 14

4.3 Fault protection ..................................................................................................... 15

4.3.1 General ......................................................................................................... 15

4.3.2 Protection by automatic disconnection of supply ............................................ 16

4.3.3 Protection by use of class II equipment or by equivalent insulation ................ 20

4.3.4 Protection by electrical separation ................................................................. 20

4.4 Protective measure: extra-low voltage provided by SELV, PELV and FELV ........... 20

4.4.1 General ......................................................................................................... 20

4.4.2 Protection by SELV or by PELV ..................................................................... 20

4.4.3 Protection by functional extra-low voltage (FELV) without protective

separation ..................................................................................................... 20

5 Disconnection and separation ........................................................................................ 21

6 Prevention of short-circuits and protection from other effects of electric current ............. 21

6.1 General ................................................................................................................. 21

6.2 Short-circuits ........................................................................................................ 22

6.3 Maintenance instructions ...................................................................................... 22

6.3.1 General ......................................................................................................... 22

6.3.2 Protective measures during maintenance ...................................................... 22

6.4 Leakage currents .................................................................................................. 23

7 Provision against hazards .............................................................................................. 23

7.1 General ................................................................................................................. 23

7.2 Charging modes .................................................................................................... 23

7.3 Overcharging or overdischarging under fault conditions ........................................ 24

7.4 Prevention of electrostatic discharges when working with batteries ....................... 24

8 Provision against hazards posed by chemical substances ............................................. 24

8.1 General ................................................................................................................. 24

8.2 Initial actions in case of hazardous chemical release ............................................ 24

8.2.1 General ......................................................................................................... 24

8.2.2 Eye or skin contact ........................................................................................ 25

8.2.3 Swallowing .................................................................................................... 25

8.2.4 Respiratory tract ............................................................................................ 25

8.2.5 Burns ............................................................................................................. 25

8.3 Battery accessories and maintenance tools........................................................... 25

9 Accommodation, housing ............................................................................................... 25

9.1 General ................................................................................................................. 25

9.2 Specific requirements for separate battery rooms ................................................. 25

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SIST EN IEC 62485-5:2021
IEC 62485-5:2020 © IEC 2020 – 3 –
9.3 Specific requirements for the specially separated areas in rooms

accommodating electrical equipment..................................................................... 26

9.4 Battery enclosures ................................................................................................ 26

9.5 Working on or near batteries ................................................................................. 26

9.5.1 Working distances within battery rooms ......................................................... 26

9.5.2 Remarks on special work in battery rooms ..................................................... 27

9.6 Accommodation of lithium ion batteries in combination with batteries
containing aqueous electrolyte (e.g. lead-acid and NiCd batteries) in the

same room ............................................................................................................ 27

10 Charge current requirements ......................................................................................... 27

10.1 General ................................................................................................................. 27

10.2 Superimposed ripple current ................................................................................. 27

10.3 Maximum ripple current ......................................................................................... 27

11 Identification labels, warning notices and instructions for use, installation and

maintenance .................................................................................................................. 28

11.1 Warning labels and notices in rooms ..................................................................... 28

11.2 Identification labels or marking on cell, module, battery pack or battery

system .................................................................................................................. 28

11.3 Instructions for use, installation and maintenance ................................................. 28

12 Transportation, storage and environmental aspects ....................................................... 28

13 Inspection and monitoring .............................................................................................. 29

14 EMC for stationary application ....................................................................................... 29

Annex A (informative) Charging methods and modes of operation........................................ 31

A.1 Parallel operation mode ........................................................................................ 31

A.1.1 General ......................................................................................................... 31

A.1.2 Battery "stand-by" operation mode ................................................................. 31

A.1.3 Battery "buffer" operation mode ..................................................................... 31

A.1.4 Shallow cycling operation mode ..................................................................... 32

A.2 Response mode operation .................................................................................... 32

A.3 Charging methods ................................................................................................. 32

A.3.1 General ......................................................................................................... 32

A.3.2 Temperature compensation of the charge voltage and limiting of charge

currents ......................................................................................................... 33

A.4 Discharge ............................................................................................................. 33

Annex B (normative) Electromagnetic compatibility (EMC) ................................................... 34

B.1 Case 1 – EMC requirements for battery systems depending on each end-

device application ................................................................................................. 34

B.2 Case 2 – EMC requirements for testing battery system as an end-device .............. 34

Annex C (informative) Cell behaviour inside and outside of operating region ....................... 35

Bibliography .......................................................................................................................... 36

Figure 1 – TN system with separate protective conductor (PE) in the entire system

(TN-S network) ..................................................................................................................... 16

Figure 2 – TN system with functional earthing and protective earthing (FPE, PEN)

combined with an external line conductor (TN-C system) ...................................................... 17

Figure 3 – TT system ............................................................................................................ 18

Figure 4 – IT system ............................................................................................................. 19

Figure 5 – Converters with intermediate DC circuit (IT system) (example) ............................. 19

Figure A.1 – Parallel operation mode circuit .......................................................................... 31

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SIST EN IEC 62485-5:2021
– 4 – IEC 62485-5:2020 © IEC 2020

Figure A.2 – Example of battery charge current interlaced with frequent temporary

discharge events due to a load current exceeding the current supply capability .................... 32

Figure A.3 – Response mode operation circuit ...................................................................... 32

Figure A.4 – Constant current/constant voltage charge ......................................................... 33

Figure C.1 – An example for operating region of lithium ion cell ............................................ 35

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SIST EN IEC 62485-5:2021
IEC 62485-5:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR SECONDARY
BATTERIES AND BATTERY INSTALLATIONS –
Part 5: Safe operation of stationary lithium ion 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 62485-5 has been prepared by IEC technical committee 21:

Secondary cells and batteries.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1069/FDIS 21/1076/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

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

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SIST EN IEC 62485-5:2021
– 6 – IEC 62485-5:2020 © IEC 2020

A list of all parts in the IEC 62485 series, published under the general title Safety

requirements for secondary batteries and battery installations, can be found on the IEC

website.

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

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
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SIST EN IEC 62485-5:2021
IEC 62485-5:2020 © IEC 2020 – 7 –
INTRODUCTION

The described safety requirements comprise the protective measures to protect from hazards

generated by electricity and chemical substances when using secondary batteries. In addition

measures are described to maintain the functional safety of batteries and battery installations.

For electrical safety (protection against electric shock) under Clause 4, this document refers

to IEC 60364-4-41. The pilot function of this document is fully observed by indication of cross-

reference numbers of the relevant clauses, but interpretation is given where adoption to direct

current (DC) circuits is required.

This document comes into force with the date of publication and applies to all new batteries

and battery installations. Previous installations are intended to conform to the existing

national standards at the time of installation. In the case of the redesign of old installations,

this document applies.

Lithium ion cells/batteries used in stationary industrial applications are intended to fulfil safety

requirements in accordance with IEC 62619.
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SIST EN IEC 62485-5:2021
– 8 – IEC 62485-5:2020 © IEC 2020
SAFETY REQUIREMENTS FOR SECONDARY
BATTERIES AND BATTERY INSTALLATIONS –
Part 5: Safe operation of stationary lithium ion batteries
1 Scope

This part of IEC 62485 applies to the installation of one or more stationary secondary

batteries having a maximum aggregate DC voltage of 1 500 V to any DC part of the power

network, and describes the principal measures for protections during normal operation or

under expected fault conditions against hazards generated from:
– electricity,
– short-circuits,
– electrolyte,
– gas emission,
– fire,
– explosion.

This document provides requirements on safety aspects associated with the installation, use,

inspection, and maintenance and disposal of lithium io
...

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