FprEN IEC 62933-5-1:2024
(Main)Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-integrated EES systems - General specification
Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-integrated EES systems - General specification
IEC 62933-5-1:2024 specifies safety considerations (e.g. hazards identification, risk assessment, risk mitigation) applicable to EES systems integrated with the electrical grid. This document provides criteria to enable the safe application and use of electrical energy storage systems of any type or size intended for grid-integrated applications. This document can be applied to all EESS technologies, but for requirements specific to electrochemical EES systems, reference is also made to IEC 62933-5-2. This first edition cancels and replaces the first edition of IEC TS 62933-5-1 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC TS 62933‑5‑1:2017: a) Revising “should” statements to “shall” statements for all requirements and move some “should” statements clauses to Annex B for informative purposes. b) Update standard references (normative). c) Update definitions and add or remove definitions where necessary. d) Revise criteria in Clause 6 and Clause 7 to be actionable and add standard references where necessary. e) Revise Clause 8 for more thorough test method and criteria, add tests where necessary. f) Add markings and instruction criteria. g) Revise Annex A to add technology safety information on gravitational and thermal EESS. h) Add Annex B and Annex C for safety considerations for EESS and test method for mechanical EESS. i) Add informative list of standards and update bibliography.
Elektrische Energiespeichersysteme (EES-Systeme) – Teil 5-1: Sicherheitserwägungen für netzintegrierte EES-Systeme – Allgemeine Spezifikation
Systèmes de stockage de l'énergie électrique (EES) - Partie 5-1: Considérations de sécurité pour les systèmes EES intégrés au réseau - Spécifications générales
L’IEC 62933-5-1:2024 spécifie les considérations de sécurité (par exemple, l'identification des phénomènes dangereux, l'appréciation du risque, l'atténuation des risques) applicables aux systèmes EES intégrés au réseau électrique. Le présent document fournit des critères qui permettent l'application et l'utilisation sûres des systèmes de stockage de l'énergie électrique de tout type ou de toute taille destinés à des applications intégrées au réseau. Il peut s'appliquer à toutes les technologies EESS. Toutefois, pour les exigences spécifiques aux systèmes EES électrochimiques, se référer également à l’IEC 62933-5-2. Cette première édition annule et remplace la première édition de l’IEC TS 62933-5-1. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC TS 62933‑5‑1:2017: a) révision des énoncés "il convient" en "doit" pour toutes les exigences et déplacement de certains articles à énoncés "il convient" vers l‘Annexe B à des fins informatives; b) mise à jour des références (normatives); c) mise à jour des définitions et ajout ou suppression des définitions si nécessaire; d) révision des critères de l’Article 6 et de l’Article 7 pour qu’ils soient exploitables et ajout de références normatives si nécessaire; e) révision de l’Article 8 pour approfondir et compléter la méthode d’essai et les critères, ajout d’essais si nécessaire; f) ajout de marquages et de critères d’instructions; g) révision de l’Annexe A en ajoutant des informations sur la sécurité des technologies concernant l’EESS gravitationnel et thermique; h) ajout de l’Annexe B et de l’Annexe C pour des considérations de sécurité pour les EESS et la méthode d’essai pour les EESS mécaniques; i) ajout d’une liste informative de normes et mise à jour de la bibliographie.
Električne naprave za shranjevanje energije (EES) - 5-1. del: Varnostni vidiki za sisteme EES, vključene v omrežje - Splošna specifikacija
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 62933-5-1:2023
01-oktober-2023
Električne naprave za shranjevanje energije (EES) - 5-1. del: Varnostni vidiki za
sisteme EES, vključene v omrežje - Splošna specifikacija
Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-
integrated EES systems - General specification
Ta slovenski standard je istoveten z: prEN IEC 62933-5-1:2023
ICS:
27.010 Prenos energije in toplote na Energy and heat transfer
splošno engineering in general
oSIST prEN IEC 62933-5-1:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 62933-5-1:2023
oSIST prEN IEC 62933-5-1:2023
120/325/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62933-5-1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-08-18 2023-11-10
SUPERSEDES DOCUMENTS:
120/298/CD, 120/309A/CC
IEC TC 120 : ELECTRICAL ENERGY STORAGE (EES) SYSTEMS
SECRETARIAT: SECRETARY:
Japan Mr Hideki HAYASHI
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 21,SC 21A,TC 64
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
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This document is still under study and subject to change. It should not be used for reference purposes.
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Recipients of this document are invited to submit, with their comments, notification of any relevant “In So me
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Electrical energy storage (EES) systems - Part 5-1: Safety considerations for grid-integrated
EES systems - General specification
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
This CDV has been reflected the observations of 120/309A/CC by MT8 experts.
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
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oSIST prEN IEC 62933-5-1:2023
IEC CDV 62933-5-1 © IEC 2023 2 120/325/CDV
1 CONTENTS
3 CONTENTS . 2
4 FOREWORD . 6
5 INTRODUCTION . 8
6 1 Scope . 9
7 2 Normative references. 9
8 3 Terms and definitions ………………………………………………………………………………….11
9 4 Basic guidelines for safety aspects of EES systems . 15
10 5 Hazard considerations for EES systems . 15
11 5.1 Electrical hazards . 15
12 5.2 Mechanical hazards . 16
13 5.3 Energy hazards . 16
14 5.3.1 Explosion hazards . 16
15 5.3.2 Hazards arising from electrical, magnetic, and electromagnetic fields . 16
16 5.4 Fire hazards . 16
17 5.6 Chemical hazards . 16
18 5.7 Unsuitable working conditions . 17
19 6 EESS risk assessment . 17
20 6.1 EESS structure . 17
21 6.1.1 General characteristics . 17
22 6.1.2 Specific characteristics . 18
23 6.2 Description of storage conditions . 18
24 6.2.1 Types of grids, Applications and Locations . 18
25 6.2.2 Vulnerable elements . 19
26 6.2.3 Special provisions for EES systems in generally accessible locations . 20
27 6.2.4 Sources of external aggression . 20
28 6.2.5 Unattended operation . 20
29 6.2.6 Unintentional islanding . 20
30 6.3 Risk analysis . 21
31 6.3.1 General . 21
32 6.3.2 Risk considerations . 21
33 6.3.3 System level risk analysis . 22
34 7 Requirements necessary to reduce risks . 22
35 7.1 General measures to reduce risks . 22
36 7.2 Preventive measures against damage to neighbouring inhabitants . 24
37 7.3 Safety-related design review . 25
38 7.3.1 General . 25
39 7.3.2 Initial safety design review . 25
40 7.4 Preventive measures against damage to workers and other persons at risk . 26
41 7.4.1 Protection from electrical hazards…………………………………………………………………………….…….24
42 7.4.2 Protection from mechanical hazards………………………………………………………………………………25
43 7.4.3 Protection from high pressure hazards…………………………………………………………………………….30
44 7.4.4 Protection from explosive atmosphere hazards……………………………………………………………….30
45 7.4.5 Protection from hazards arising from electric, magnetic, and electromagnetic fields………31
oSIST prEN IEC 62933-5-1:2023
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47 7.4.6 Protection from fire hazards…………………………………………………………………………………….…….31
48 7.4.7 Protection from chemical hazards…………………………………………………………………………………. 33
49 7.4.8 Protection from workplace hazards…………………………………………………….……………………………34
50 7.4.9 Staff training…………………………………………………………………………………………………………………….35
51 7.5 EESS disconnection and shutdown . 34
52 7.5.1 General . 34
53 7.5.2 Grid-disconnected state…………………………………………………………………….37
54 7.5.3 Stopped state……………………………………………………………………………….37
55 7.5.4 EESS shutdown…………………………………………………… . ………………….37
56 7.5.5 Partial disconnection…………………………………………………………………………37
57 7.5.6 Equipment guidelines for emergency shutdown…………………………………………38
58 8 System testing…………………………………………………………………………………….39
59 8.1 General . 37
60 8.2 Validation and Testing of ESS - Electrical hazards…………………………………………………………….41
61 8.2.1 Accessibility to hazardous live parts……………………………………………………….41
62 8.2.2 Protection from exposure to moisture and pollution……………………………………………………….41
63 8.2.3 Electrical insulation and protection against electrical shock tests………………………………….…42
64 8.2.4 Protection against out of normal operation range tests……………………………………………………44
65 8.2.5 Anti-islanding………………………………………………………………………………………………………………….46
66 8.3 Validation and Testing of ESS - Mechanical hazards…………………………………………………………….…46
67 8.3.1 Enclosure strength against impact……………………………………………………………………………….….46
68 8.3.2 Enclosure strength against static force……………………………………………………………………….….46
69 8.3.3 Containment of hazardous moving parts…………………………………………………………………….….47
70 8.3.4 Mounting means and Handle Robust test……………………………………………………………………….47
71 8.3.5 Impact and vibration during transportation and seismic events………………………………………48
72 8.4 Validation and Testing of EESS – Fluid hazards (high or low temperature, high pressure,
73 flammable, corrosive/caustic or toxic)……………………………………………………………………………48
74 8.4.1 Hazardous fluid containing parts strength test………………………………………………………….…….48
75 8.4.2 Hazardous fluid containing parts leakage test…………………………………………………………….….49
76 8.4.3 Start-To-Discharge Pressure Test………………………………………………………………………………….…50
77 8.5 Validation and Testing of EESS - Explosion and combustible concentrations hazards……….….50
78 8.5.1 Gas detection and off-gas detection………………………………………………………………………….….50
79 8.5.2 Mechanical Ventilation Evaluation…………………………………………………………………………….….50
80 8.6 Validation and Testing of EESS - Hazards arising from electric, magnetic and electromagnetic
81 fields…………………………………………………………………………………………………………………………………….51
82 8.7 Validation and Testing of EESS - Fire Hazards (Propagation)………………………………………………….51
83 8.8 Validation and Testing of EESS - Temperature hazards………………………………………………………….51
84 8.8.1 Containment of hazardous temperature (low or high) fluids………………………………………….51
85 8.8.2 Temperature under normal operation tests………………………………………………………………….52
86 8.9 Validation and Testing of ESS - Chemical effects…………………………………………………………………….52
87 8.9.1 Strength Tests……………………………………………………………………………………………………………….52
88 8.9.2 Leakage Tests…………………………………………………………………………………………………………………52
89 8.10 Validation and Testing of ESS - Hazards arising from the environment…………………………….….52
90 8.10.1 Ingress of moisture……………………………………………………………………………………………………….52
91 8.10.2 Exposure to marine environments……………………………………………………………………………….53
oSIST prEN IEC 62933-5-1:2023
IEC CDV 62933-5-1 © IEC 2023 4 120/325/CDV
92 8.11 Validation and Testing of ESS - Hazards arising from auxiliary, control and communication
93 subsystem malfunctions………………………………………………………………………………………………….……54
94 8.11.1 Auxiliary system malfunction……………………………………………………………………………………….54
95 8.11.2 EES control subsystem malfunction………………………………………………………………………………56
96 8.11.3 EESS internal communication malfunction…………………… . ……………………………………57
97 8.11.4 EESS external communication malfunction………………… . …………………………………….58
98 9 Instruction manuals and guidelines………………………………………………………………………………….………….59
99 9.1 General……………………………………………………………………………………………………………………………….59
100 9.2 Installation……………………………………………………………………………………………………………………………59
101 9.3 Maintenance manual……………………………………………………………………………………………………….….60
102 9.3.1 Personal protective equipment (PPE) guidelines……………………………………………………………61
103 9.4 Operators manual……………………………………………………………………………………………………………….61
104 9.5 First response manual…………………………………………………………………………………………………….….62
105 10 Markings and Signage………………………………………………………………………………………………………………….62
106 10.1 Nameplate…………………………………………………………………………………………………………………………62
107 10.2 Cautionary Markings and Signage…………………………………………………………………………………….63
109 Annex A (informative) Main risks of different storage technologies…………………….64
110 A.1 General . 61
111 A.2 Pumped hydro storage………………………………………………………………………64
112 A.3 Flywheel………………………………………………………………………………………………………………………….65
113 A.4 Gravitational EESS storage . 66
114 A.5 Battery energy storage systems . 67
115 A.6 Hydrogen and synthetic natural gas . 67
116 A.7 Thermal EESS technologies . 69
117 A.8 Other EESS technologies . 69
118 Annex B (informative) Safety Considerations…………………………………………………….70
119 B.1 General…………………………………………………………………………………………70
120 B.2 Electrical hazards…………………………………………………………………………….70
121 B.3 Mechanical hazards………………………………………………………………………….70
122 B.4 Energy hazards………………………………………………………………….………….71
123 B.4.1 Explosion hazards……………………………………………………….………………….71
124 B.4.2 Hazards arising from electrical, magnetic, and e
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