IEC 60364-5-57:2022

IEC 60364-5-57 ®
Edition 1.0 2022-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low voltage electrical installations –
Part 5-57: Selection and erection of electrical equipment – Erection of
stationary secondary batteries
Installations électriques à basse tension –
Partie 5-57: Choix et mise en œuvre des matériels électriques – Mise en œuvre
des batteries d’accumulateurs stationnaires
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IEC 60364-5-57 ®
Edition 1.0 2022-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low voltage electrical installations –
Part 5-57: Selection and erection of electrical equipment – Erection of
stationary secondary batteries
Installations électriques à basse tension –
Partie 5-57: Choix et mise en œuvre des matériels électriques – Mise en œuvre
des batteries d’accumulateurs stationnaires
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 91.140.50 ISBN 978-2-8322-3941-4
– 2 – IEC 60364-5-57:2022 © IEC 2022
CONTENTS
FOREWORD . 4
570.1 Scope . 6
570.2 Normative references . 6
570.3 Terms and definitions . 7
570.4 Operation modes . 8
570.4.1 Grid connected . 8
570.4.2 Grid connected and islanding mode . 9
570.5 Main characteristics of stationary secondary batteries . 9
570.5.1 Types of equipment . 9
570.5.2 Selection of battery . 10
570.5.3 Converter . 10
570.6 Selection and erection of electrical equipment . 10
570.6.1 General . 10
570.6.2 Measures for protection against electric shock. 11
570.6.3 Protection against thermal effects . 12
570.6.4 Protection against short-circuit . 12
570.6.5 Isolation . 13
570.6.6 Unexpected islanding . 13
570.6.7 Protection against other hazards . 14
Annex A (informative) Technical characteristics . 15
A.1 Nominal voltage . 15
A.2 Discharge . 15
A.2.1 Discharge voltage curve . 15
A.2.2 Temperature dependence . 16
A.3 Internal Impedance . 16
A.3.1 General . 16
A.3.2 Battery equivalent circuit . 16
A.3.3 Voltage drop . 17
A.3.4 Thermal effects . 17
A.3.5 Time dependence . 17
A.3.6 Gas evolution of lead acid, nickel-cadmium batteries and zinc dibromide
aqueous electrolyte . 18
Annex B (informative) Technical characteristics for battery load . 19
B.1 C-rate . 19
B.2 Battery discharge performance . 19
B.3 Ripple effects . 20
Annex C (normative) Battery accommodation . 21
C.1 General . 21
C.2 Specific requirements for separate battery rooms . 21
C.3 Specific requirements for the specially separated areas in rooms
accommodating electrical equipment. 22
C.4 Accommodation for lead acid and NiCd batteries in the same room . 22
C.5 Detection means . 22
Annex D (informative) Identification labels and warning notices . 23
Annex E (informative) List of notes concerning certain countries . 24
Bibliography . 25

Figure 1 – Battery operating only when grid connected . 9
Figure 2 – Battery operation with the grid and in island mode . 9
Figure 3 – Battery charger contribution to a DC system fault . 13
Figure A.1 – Examples of cell discharge characteristics for different technologies and
for constant current discharge . 16
Figure A.2 – Battery equivalent circuit impedance . 17
Figure B.1 – Typical discharge curves of lead acid as a function of C-rate as a

parameter . 19
Figure B.2 – Capacity characteristic as a function of discharge time . 20

Table 1 – Protective measures where converter without galvanic separation is used. 12

– 4 – IEC 60364-5-57:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW VOLTAGE ELECTRICAL INSTALLATIONS –

Part 5-57: Selection and erection of electrical equipment –
Erection of stationary secondary batteries

FOREWORD
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...