SIST EN IEC 62932-2-2:2020

SLOVENSKI STANDARD
SIST EN IEC 62932-2-2:2020
01-julij-2020
Sistemi pretočnih baterij za vgrajeno opremo - 2-2. del: Varnostne zahteve
Flow Battery Systems for Stationary applications - Part 2-2: Safety requirements
Ta slovenski standard je istoveten z: EN IEC 62932-2-2:2020
ICS:
29.220.99 Drugi členi in baterije Other cells and batteries
SIST EN IEC 62932-2-2:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62932-2-2:2020

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SIST EN IEC 62932-2-2:2020


EUROPEAN STANDARD EN IEC 62932-2-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2020
ICS 29.220.99

English Version
Flow battery energy systems for stationary applications - Part 2-
2: Safety requirements
(IEC 62932-2-2:2020)
Systèmes de production d’énergie de batteries Flussbatterie-Systeme für stationäre Anwendungen - Teil 2-
d’accumulateurs à circulation d'électrolyte pour applications 2: Sicherheitsanforderungen
stationnaires - Partie 2-2: Exigences de sécurité (IEC 62932-2-2:2020)
(IEC 62932-2-2:2020)
This European Standard was approved by CENELEC on 2020-03-24. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62932-2-2:2020 E

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SIST EN IEC 62932-2-2:2020
EN IEC 62932-2-2:2020 (E)
European foreword
The text of document 21/1029/FDIS, future edition 1 of IEC 62932-2-2, prepared by IEC/TC 21
"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62932-2-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-12-24
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-03-24
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 62932-2-2:2020 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 60529 NOTE Harmonized as EN 60529
IEC 60664-1 NOTE Harmonized as EN 60664-1
IEC 60721-3-2 NOTE Harmonized as EN IEC 60721-3-2
IEC 60812 NOTE Harmonized as EN IEC 60812
IEC 60900 NOTE Harmonized as EN IEC 60900
IEC 61000 (series) NOTE Harmonized as EN 61000 (series)
IEC 61025 NOTE Harmonized as EN 61025
IEC 61660-1 NOTE Harmonized as EN 61660-1
IEC 61660-2 NOTE Harmonized as EN 61660-2
IEC 61936-1 NOTE Harmonized as EN 61936-1
IEC 62282-3-100 NOTE Harmonized as EN 62282-3-100
IEC 62282-3-300 NOTE Harmonized as EN 62282-3-300
IEC 62351 (series) NOTE Harmonized as EN 62351 (series)
IEC 62477-1 NOTE Harmonized as EN 62477-1
1
IEC 62932-2-1 NOTE Harmonized as EN IEC 62932-2-1
ISO 13850 NOTE Harmonized as EN ISO 13850


1
To be published. Stage at the time of publication: FprEN IEC 62932-2-1:2019.
2

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SIST EN IEC 62932-2-2:2020
EN IEC 62932-2-2:2020 (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 60079-10-1 - Explosive atmospheres - Part 10-1: EN 60079-10-1 -
Classification of areas - Explosive gas
atmospheres
IEC 60364-4-41 - Low-voltage electrical installations - Part 4-41: HD 60364-4-41 -
Protection for safety - Protection against
electric shock
IEC 60364-4-43 - Low-voltage electrical installations - Part 4-43: HD 60364-4-43 -
Protection for safety - Protection against
overcurrent
IEC 60364-6 - Low voltage electrical installations - Part 6: HD 60364-6 -
Verification
IEC 61936-1 - Power installations exceeding 1 kV a.c. - Part EN 61936-1 -
1: Common rules
IEC 62485-2 2010 Safety requirements for secondary batteries EN IEC 62485-2 2018
and battery installations - Part 2: Stationary
batteries
IEC 62932-1 - Flow battery energy systems for stationary - -
applications - Part 1: Terminology and general
aspects
ISO 7010 - Graphical symbols - Safety colours and safety - -
signs - Registered safety signs



3

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SIST EN IEC 62932-2-2:2020

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SIST EN IEC 62932-2-2:2020



IEC 62932-2-2

®


Edition 1.0 2020-02




INTERNATIONAL



STANDARD



















Flow battery energy systems for stationary applications –

Part 2-2: Safety requirements



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 29.220.99 ISBN 978-2-8322-7854-3




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


® Registered trademark of the International Electrotechnical Commission

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SIST EN IEC 62932-2-2:2020
– 2 – IEC 62932-2-2:2020 © IEC 2020
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 9
4 Procedure of the risk analysis . 9
5 Safety requirements and protective measures . 10
5.1 General . 10
5.2 Risk information . 10
5.3 Electrical hazards . 10
5.3.1 Electrical shock . 10
5.3.2 Short-circuits . 10
5.3.3 Leakage currents . 11
5.4 Hazards of gaseous emissions . 11
5.4.1 General . 11
5.4.2 Harmful gas . 12
5.4.3 Ventilation . 13
5.4.4 Warning sign . 13
5.4.5 Close vicinity to emissions . 14
5.5 Hazard posed by liquids . 14
5.5.1 General . 14
5.5.2 Detection of electrolyte leakage . 14
5.5.3 Protective measures against leakage . 14
5.5.4 Specific information . 14
5.5.5 Flow path identification . 15
5.6 Hazards of mechanical cause . 15
5.7 Operational hazards and measures . 15
5.7.1 General . 15
5.7.2 Start . 15
5.7.3 Remote monitoring and control systems . 16
5.7.4 Protection . 16
5.7.5 Auxiliary power failure . 16
6 Instructions . 16
7 Identification labels or marking . 16
7.1 Name plate information . 16
7.2 Warning label information and location . 17
8 Transport, storage, disposal and environmental aspects . 17
8.1 Packing and transport . 17
8.2 Dismantling, disposal, and recycling . 17
9 Inspection . 17
10 Maintenance . 18
11 Verification tests for protective measures . 18

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11.1 General . 18
11.1.1 Tests . 18
11.1.2 Test object . 19
11.1.3 Test category . 19
11.2 Dielectric strength of the parts in contact with the fluid . 19
11.2.1 Requirements . 19
11.2.2 Category . 19
11.2.3 Number of samples . 19
11.2.4 Test and acceptance criteria . 19
11.3 Operational sequence . 19
11.3.1 Requirements . 19
11.3.2 Category . 19
11.3.3 Number of samples . 19
11.3.4 Test . 20
11.3.5 Acceptance criteria . 20
11.4 Emergency stop . 20
11.4.1 Requirement . 20
11.4.2 Category . 20
11.4.3 Number of samples . 20
11.4.4 Test . 20
11.4.5 Acceptance criteria . 20
11.5 Protection . 20
11.5.1 Requirements . 20
11.5.2 Category . 21
11.5.3 Number of samples . 21
11.5.4 Test . 21
11.5.5 Acceptance criteria . 21
11.6 Safety requirement for stacks . 21
Annex A (informative) Recommended structure of user manual . 22
A.1 General . 22
A.2 Table of contents . 22
A.3 Safety warning . 22
A.4 Introduction . 22
A.5 Product description . 22
A.5.1 Overview . 22
A.5.2 Technical specifications . 23
A.5.3 System structure. 23
A.5.4 Applications . 23
A.5.5 Operational sequence . 23
A.6 Site requirements . 23
A.6.1 Location and load . 23
A.6.2 Access and clearance . 23
A.6.3 Precautionary measures for fluid containment. 23
A.6.4 Ventilation . 24
A.6.5 Temperature . 24
A.7 Operation . 24
A.7.1 General . 24
A.7.2 Checks before operation . 24
A.7.3 Energizing and de-energizing the system . 24

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A.7.4 Valve status . 24
A.7.5 Specific operations . 24
A.7.6 Notices for operation . 24
A.8 Alarms and fault finding . 25
A.9 Maintenance . 25
A.10 Contact information . 25
Annex B (normative) Safety requirements for stacks . 26
B.1 General . 26
B.2 External short-circuit of the stack . 26
B.2.1 Requirements . 26
B.2.2 Category . 26
B.2.3 Number of samples . 26
B.2.4 Test . 26
B.2.5 Acceptance criteria . 26
B.3 Heat shock strength . 27
B.3.1 Requirements . 27
B.3.2 Category . 27
B.3.3 Number of samples . 27
B.3.4 Test . 27
B.3.5 Acceptance criteria . 27
B.4 Leakage of the stack . 27
B.4.1 Requirements . 27
B.4.2 Category . 28
B.4.3 Number of samples . 28
B.4.4 Test . 28
B.4.5 Acceptance criteria . 28
Bibliography . 29

Figure 1 – Flow battery energy system . 7

Table 1 – List of verification tests for protective measurements . 18
Table B.1 – List of verification tests for stacks for protective measurements . 26

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SIST EN IEC 62932-2-2:2020
IEC 62932-2-2:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –

Part 2-2: Safety requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The objective 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. 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 edition.
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 62932-2-2 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1029/FDIS 21/1035/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.
A list of all parts in the IEC 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.

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– 6 – IEC 62932-2-2:2020 © IEC 2020
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.

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SIST EN IEC 62932-2-2:2020
IEC 62932-2-2:2020 © IEC 2020 – 7 –
INTRODUCTION
A flow battery system (FBS) can be utilized in a flow battery energy system (FBES). Such an
FBES can consist of:
– a flow battery system,
– a power conversion system,
– other equipment and surroundings.
The FBES is connected to the external power input/output via a point of connection (POC).
This document covers the domain of the FBES, as shown in Figure 1. Energy to the auxiliary
systems such as the battery management system (BMS), the battery support system (BSS),
and the power conversion system (PCS) may be supplied by one of the following:
a) direct connection to the external power source;
b) the internal power source of the FBES or FBS itself.

Figure 1 – Flow battery energy system

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FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –

Part 2-2: Safety requirements


1 Scope
This part of IEC 62932 applies to flow battery systems for stationary applications and their
installations with a maximum voltage not exceeding 1 500 V DC in compliance with
IEC 62932-1.
This document defines the requirements and test methods for risk reduction and protection
measures against significant hazards relevant to flow battery systems, to persons, property and
the environment, or to a combination of them.
This document is applicable to stationary flow battery systems intended for indoor and outdoor
commercial and industrial use in non-hazardous (unclassified) areas.
This document covers significant hazards, hazardous situations and events, with the exception
of those associated with natural disaster, relevant to flow battery systems, when they are used
as intended and under the conditions foreseen by the manufacturer including reasonably
foreseeable misuse thereof.
The requirements described in this document are not intended to constrain innovations. When
considering fluids, materials, designs or constructions not specifically dealt with in this
document, these alternatives are evaluated as to their ability to yield levels of safety equivalent
to those specified in this document.
2 Normative references
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.
IEC 60079-10-1, Explosive atmospheres – Part 10-1: Classifica
...