IEC 62933-5-1:2024

Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-integrated EES systems - General specification

IEC 62933-5-1:2024

Name:IEC 62933-5-1:2024   Standard name:Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-integrated EES systems - General specification
Standard number:IEC 62933-5-1:2024   language:English and French language
Release Date:29-Jul-2024   technical committee:TC 120 - Electrical Energy Storage (EES) systems
Drafting committee:MT 8 - TC 120/MT 8   ICS number:13.020.30 - Environmental impact assessment

IEC 62933-5-1
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical energy storage (EES) systems –
Part 5-1: Safety considerations for grid-integrated EES systems – General
specification
Systèmes de stockage de l'énergie électrique (EES) –
Partie 5-1: Considérations de sécurité pour les systèmes EES intégrés au
réseau – Spécifications générales




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IEC 62933-5-1
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical energy storage (EES) systems –

Part 5-1: Safety considerations for grid-integrated EES systems – General

specification
Systèmes de stockage de l'énergie électrique (EES) –

Partie 5-1: Considérations de sécurité pour les systèmes EES intégrés au

réseau – Spécifications générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.020.30 ISBN 978-2-8322-9374-4

– 2 – IEC 62933-5-1:2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 12
4 Basic approach for safety considerations of EES systems . 16
5 Hazard considerations for EES systems . 17
5.1 Electrical hazards . 17
5.2 Mechanical hazards . 17
5.3 Energy hazards . 17
5.3.1 Explosion hazards . 17
5.3.2 Hazards arising from electrical, magnetic, and electromagnetic fields . 18
5.4 Fire hazards. 18
5.5 Temperature hazards . 18
5.6 Chemical hazards . 18
5.7 Unsuitable working conditions . 18
6 EESS risk assessment. 19
6.1 EESS structure . 19
6.1.1 General characteristics . 19
6.1.2 Specific characteristics . 19
6.2 Description of storage conditions . 20
6.2.1 Types of grids, applications and locations . 20
6.2.2 Vulnerable elements . 20
6.2.3 Special provisions for EES systems in generally accessible locations . 21
6.2.4 Sources of external aggression . 21
6.2.5 Unattended operation . 21
6.2.6 Unintentional islanding . 21
6.3 Risk analysis . 21
6.3.1 General . 21
6.3.2 Components . 22
6.3.3 Risk considerations . 22
6.3.4 System level risk analysis . 23
7 Requirements necessary to reduce risks . 24
7.1 General measures to reduce risks . 24
7.2 Preventive measures against damage to neighbouring inhabitants . 26
7.3 Safety-related design review . 26
7.3.1 General . 26
7.3.2 Initial safety design review . 27
7.3.3 Subsequent design revisions . 27
7.4 Preventive measures against damage to workers and other persons at risk . 27
7.4.1 Protection from electrical hazards . 27
7.4.2 Protection from mechanical hazards . 30
7.4.3 Protection from high pressure hazards. 30
7.4.4 Protection from explosive atmosphere hazards . 31
7.4.5 Protection from hazards arising from electric, magnetic, and
electromagnetic fields . 32

7.4.6 Protection from fire hazards . 32
7.4.7 Protection from thermal hazards . 33
7.4.8 Protection from chemical hazards . 34
7.4.9 Protection from workplace hazards . 35
7.4.10 Staff training . 36
7.5 EESS disconnection and shutdown . 36
7.5.1 General . 36
7.5.2 Grid-disconnected state . 37
7.5.3 Stopped state . 38
7.5.4 EESS shutdown . 38
7.5.5 Partial disconnection . 38
7.5.6 Equipment guidelines for emergency shutdown . 38
7.6 Cyber security . 39
7.7 Remote monitoring and unattended operation . 39
8 System testing . 40
8.1 General . 40
8.2 Validation and testing of EESS – Electrical hazards . 42
8.2.1 General . 42
8.2.2 Accessibility to hazardous live parts . 42
8.2.3 Protection from exposure to moisture and pollution . 42
8.2.4 Electrical insulation and protection against electrical shock tests . 43
8.2.5 Protection against out of normal operation range tests . 45
8.2.6 Anti-islanding . 47
8.3 Validation and testing of EESS – Mechanical hazards . 47
8.3.1 Enclosure strength against impact . 47
8.3.2 Enclosure strength against static force . 48
8.3.3 Containment of hazardous moving parts . 48
8.3.4 Mounting means and handle robust test .
...

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