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IEC 62932-2-2
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
Flow battery energy systems for stationary applications –
Part 2-2: Safety requirements
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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
– 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
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
– 4 – IEC 62932-2-2:2020 © IEC 2020
A.7.4 Valve status .
...