oSIST prEN IEC 61851-1:2025
(Main)Conductive power and energy transfer systems for electric vehicles - Part 1: General system and specific mode 3 EV charging station requirements
Conductive power and energy transfer systems for electric vehicles - Part 1: General system and specific mode 3 EV charging station requirements
Konduktive Ladesysteme für Elektrofahrzeuge - Teil 1: Allgemeine Anforderungen
Système de transfert de puissance/énergie conductive pour véhicules électriques - Partie 1: Exigences générales et exigences pour station de charge en mode 3
Sistemi za prenos prevodne moči in energije za električna vozila - 1. del: Splošne zahteve sistema in posebne zahteve za polnilno postajo za električna vozila v načinu 3
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2025
Sistemi za prenos prevodne moči in energije za električna vozila - 1. del: Splošne
zahteve sistema in posebne zahteve za polnilno postajo za električna vozila v
načinu 3
Conductive power and energy transfer systems for electric vehicles - Part 1: General
system and specific mode 3 EV charging station requirements
Konduktive Ladesysteme für Elektrofahrzeuge - Teil 1: Allgemeine Anforderungen
Système de transfert de puissance/énergie conductive pour véhicules électriques -
Partie 1: Exigences générales et exigences pour station de charge en mode 3
Ta slovenski standard je istoveten z: prEN IEC 61851-1:2025
ICS:
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
69/1069/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61851-1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-08-29 2025-11-21
SUPERSEDES DOCUMENTS:
69/971/CD, 69/1067/CC
IEC TC 69 : ELECTRICAL POWER/ENERGY TRANSFER SYSTEMS FOR ELECTRICALLY PROPELLED ROAD VEHICLES AND
INDUSTRIAL TRUCKS
SECRETARIAT: SECRETARY:
Belgium Mr Peter Van den Bossche
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 8,TC 23,SC 23E,SC 23H,TC 64,TC 121
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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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
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
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:
Conductive power and energy transfer systems for electric vehicles - Part 1: General system
and specific Mode 3 EV charging station requirements
PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
elec tronic 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 any other purpose without
permission in writing from IEC.
IEC CDV 61851-1 © IEC 2025
1 CONTENTS
2 CONTENTS . 1
3 FOREWORD . 8
4 INTRODUCTION . 10
5 1 Scope . 12
6 2 Normative references . 13
7 3 Terms and definitions . 17
8 3.1 Electric supply equipment . 17
9 3.2 Earthing and protection against electric shock . 19
10 3.3 Modes and functions . 22
11 3.4 Cords, cables and connection means . 25
12 3.5 Service and usage . 29
13 3.6 General terms . 30
14 4 System requirements . 35
15 4.1 General requirements . 35
16 4.2 Charging Modes . 35
17 4.2.1 Mode 1 . 35
18 4.2.2 Mode 2 . 36
19 4.2.3 Mode 3 . 36
20 4.2.4 Mode 4 . 36
21 4.3 System functional requirements in Mode 2, 3 and 4 . 36
22 4.3.1 General . 36
23 4.3.2 Continuous continuity checking of the protective conductor . 37
24 4.3.3 Verification that the EV is properly connected to the EV supply
25 equipment. 37
26 4.3.4 Energization of the power supply to the EV . 37
27 4.3.5 De-energization of the power supply to the EV . 38
28 4.3.6 Specification of maximum allowable current . 38
29 4.3.7 Intentional and unintentional unmating of the vehicle connector and/or
30 the EV plug . 38
31 4.3.8 Optional functions . 38
32 4.4 Selection of accessories, cables and adaptors . 41
33 4.4.1 General . 41
34 4.4.2 Standard accessories . 41
35 4.4.3 EV plugs, EV socket-outlets, vehicle connectors . 41
36 4.4.4 Cable assembly . 41
37 4.4.5 Adaptors . 42
38 5 Classification of Mode 3 EV charging station . 43
39 5.1 According to the service conditions . 43
40 5.2 According to the mounting method . 43
41 5.3 According to the mechanical resistance . 43
42 5.4 According to the connection case . 43
43 5.5 According to the power distribution system . 43
44 5.6 According to the protection against electric shock . 44
45 5.7 According to the communication function with the vehicle . 44
46 5.8 According to the ability of Reverse Power Transfer . 44
47 6 Service conditions for Mode 3 EV charging station . 44
IEC CDV 61851-1 © IEC 2025
48 7 Void . 44
49 8 Requirements for Mode 3 EV charging station . 44
50 8.1 Strength of materials and parts . 44
51 8.1.1 General . 44
52 8.1.2 Protection against corrosion . 45
53 8.1.3 Damp heat resistance . 45
54 8.1.4 Properties of insulating materials . 45
55 8.1.5 Resistance to UV radiation . 46
56 8.1.6 Mechanical strength. 47
57 8.1.7 Lifting provisions . 48
58 8.2 Clearances and creepage distances . 48
59 8.2.1 General . 48
60 8.2.2 Clearances and creepages distances for inner layers of printed wiring
61 boards . 49
62 8.3 Protection against access to hazardous parts, against solid foreign objects
63 and water (IP code) . 50
64 8.3.1 Degrees of protection provided by Mode 3 EV charging station
65 enclosures . 50
66 8.3.2 Degrees of protection provided by basic interface accessories . 50
67 8.4 Temperature rise . 50
68 8.5 Operation at low temperatures . 51
69 8.6 Resistance to abnormal operating and fault conditions . 51
70 8.7 Incorporation of components . 52
71 8.7.1 General . 52
72 8.7.2 Surge protective devices and surge protective components . 52
73 8.7.3 Conductive electrical interface requirements . 54
74 8.7.4 Cable assembly requirements . 55
75 8.7.5 Emergency switching or disconnect equipment (optional) . 56
76 8.7.6 Switching devices intended to supply the connecting points . 57
77 8.8 Internal electrical circuits and connections . 58
78 8.9 Protection against electric shock . 58
79 8.9.1 General requirements for protection against electric shock . 58
80 8.9.2 Handling of welded contacts . 59
81 8.9.3 Residual current protective devices protecting connecting points . 60
82 8.9.4 Automatic or remote reclosing of protective devices . 61
83 8.9.5 Protective conductor . 64
84 8.9.6 Insulation resistance . 64
85 8.9.7 Touch current . 64
86 8.9.8 Protections against hazards caused by stored energy. 65
87 8.9.9 Dielectric withstand voltage . 65
88 8.9.10 Safety requirements for auxiliary circuits . 65
89 8.10 Protection against overcurrent . 66
90 8.10.1 General . 66
91 8.10.2 Overload protection of the cable assembly. 67
92 8.10.3 Short-circuit protection of the cable assembly . 67
93 8.11 Functional requirements of Mode 3 EV charging station . 67
94 8.12 Requirements for Mode 3 EV charging station capable of reverse power
95 transfer . 68
96 9 Marking and instructions for Mode 3 EV charging station . 68
97 9.1 Installation manual . 68
IEC CDV 61851-1 © IEC 2025
98 9.2 User manual . 69
99 9.3 Marking . 70
100 9.4 Status indication .
...
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