prEN IEC 61851-23-1:2025
(Main)Electric vehicle conductive charging system - Part 23-1: DC charging with an automatic connection system
Electric vehicle conductive charging system - Part 23-1: DC charging with an automatic connection system
This part of the IEC 61851 series, together with [IEC 61851-1 Ed. 3] and [IEC 61851-23 Ed 2.0]1, gives the requirements for DC electric vehicle charging stations with an Automated connection device (ACD) for conductive connection to the vehicle, with a rated supply voltage up to 1 000 V AC or up to 1 500 V DC and a rated output voltage up to 1 500 V DC. NOTE 1 This standard includes information on EV for conductive connection, but limited to the necessary content for describing the power and signalling interface. This part specifies the DC charging systems with an Automated connection device based on - system A described in Annex AA of [IEC 61851-23 Ed 2.0]. - system B described in Annex BB of [IEC 61851-23 Ed 2.0]. - system C described in Annex CC of [IEC 61851-23 Ed 2.0]. EMC requirements for DC EV charging stations are defined in [IEC 61851-21-2 Ed. 1 CDV]. This standard provides the general requirements for the control communication between a DC EV charging station and an EV. The requirements for digital communication between DC EV charging station and electric vehicle for control of DC charging are defined in [ISO15118-20 DIS] and [IEC 61851-24 Ed 2.0 CD]. This part only applies to Automatic couplers of category 2: using an electro-mechanical interface defined by [EN50696] for Systems described in Annex CC and Annex KK. System A, B are under consideration. This part does not apply for Automatic coupler of category 1: using a vehicle coupler defined by IEC 62196-2 or IEC 62196-3. This standard does not cover all safety aspects related to maintenance. Non-regulated DC EV supply equipment is not covered by this edition
Konduktive Ladesysteme für Elektrofahrzeuge – Teil 23-1: Gleichstromladestation für Elektrofahrzeuge mit einer automatischen Kontaktvorrichtung
Sistem kabelskega napajanja električnih vozil - 23-1. del: Napajanje električnega vozila z enosmernim tokom z avtomatskim sklopnim sistemom
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2025
Sistem kabelskega napajanja električnih vozil - 23-1. del: Napajanje električnega
vozila z enosmernim tokom z avtomatskim sklopnim sistemom
Electric vehicle conductive charging system - Part 23-1: DC charging with an automatic
connection system
Konduktive Ladesysteme für Elektrofahrzeuge – Teil 23-1: Gleichstromladestation für
Elektrofahrzeuge mit einer automatischen Kontaktvorrichtung
Ta slovenski standard je istoveten z: prEN IEC 61851-23-1:2025
ICS:
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
69/1030/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61851-23-1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-02-07 2025-05-02
SUPERSEDES DOCUMENTS:
69/943/NP, 69/983/RVN
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):
SC 23H
ASPECTS CONCERNED:
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
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 t hey 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” clau ses
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:
Electric vehicle conductive charging system - Part 23-1: DC Charging with an automatic connection system
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You
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2 IEC 61851-23-1 ED1 © IEC 2024
1 CONTENTS
3 ________. 6
4 FOREWORD . 6
5 INTRODUCTION . 9
6 1 Scope . 10
7 2 Normative references . 10
8 3 Terms and definitions . 11
9 4 General requirements . 14
10 5 Classification . 14
11 6 Charging modes and functions . 14
12 7 Communications . 17
13 8 Protection against electric shock . 17
14 9 Conductive electrical interface requirements. 25
15 10 Requirements for adaptors . 26
16 11 Cable assembly requirements . 26
17 12 EV supply equipment constructional requirements and tests . 26
18 13 Overload and short circuit protection . 29
19 14 Automatic reclosing of protective devices . 29
20 15 Emergency switching or disconnect . 29
21 16 Marking and instructions . 29
22 101 Specific requirements for EV supply equipment . 30
23 17 Test methods . 31
24 201 ACD specific requirements . 32
25 34
26 Annex A . 35
27 AA.1 General . 35
28 AA.2 Circuit diagrams . 35
29 AA.3 Parameters of control pilot circuit . 36
30 AA.4 Forward power transfer control process under normal condition . 39
31 AA.5 Safety requirements under failure mode . 41
32 AA.6 Timing sequence diagram of forward power transfer . 44
33 AA.7 Side B current regulation in CCM . 47
34 AA.8 Insulation resistance check before energy transfer. 48
35 AA.9 Side B voltage regulation in CVM . 48
36 AA.10 Periodic and random deviation (voltage ripple at side B in CVM) . 48
37 AA.11 Energy transfer control mode . 48
38 AA.12 Standby mode . 48
39 AA.13 Smart charging . 48
40 AA.14 Minimum cross-sectional area of the protective conductor . 48
41 AA.200 Additional functions. 48
IEC 61851-23-1 ED1 © IEC 2024 3
42 Annex B (normative) DC EV supply equipment of system C with an automated
43 connection device . 49
44 AA.1 General . 49
45 B.1 Circuit diagrams . 49
46 B.2 Process of energy transfer . 51
47 B.3 Safety related functions . 65
48 B.4 Additional functions . 67
49 B.5 Specific requirements . 68
50 B.6 General test conditions . 68
51 E.8 Automated connection device . 79
52 Annex F . 80
53 Annex G . 81
54 82
55 Multioutlet (AC/DC isolated) DC EV supply equipment . 82
56 FF.2 Classification of multi-outlet DC EV supply equipment . 82
57 Annex H Communication and energy transfer process between DC EV supply
58 equipment and EV . 83
59 FF.1 Digital communication between the EV supply equipment and the EV . 83
60 H.1 System configuration . 83
61 H.2 Energy transfer control process and state . 83
62 Annex I . 84
63 FF.1 General . 84
64 HC.3 Conditional dependent thresholds . 86
65 (informative) Consideration when road vehicle is interconnected with an off -
66 board charger . 87
67 JJ.1 General . 87
68 I.1 Open interface on the roof of the vehicle . 87
69 I.2 Isolation resistance. 88
70 Annex J (normative) DC EV supply equipment based on System C with 3 contacts
71 automatic coupler . 89
72 JJ.1 General . 89
73 J.1 Circuit diagrams . 89
74 J.2 Process of energy transfer . 96
75 J.3 Safety measures . 109
76 J.4 Additional functions . 112
77 J.5 Specific requirements . 113
78 J.6 General test conditions . 113
79 J.7 Automated connection device . 124
80 J.8 Ground level ACD case . 124
82 Figure 201 – Case D connection . 12
83 Figure 202 – Case E connection . 12
84 Figure 106 – Measurement of the touch leakage current . 19
85 Figure 203 – Minimum clearances to accessible live parts . 21
4 IEC 61851-23-1 ED1 © IEC 2024
86 Figure 204 – Protection by obstacles . 22
87 Figure 205 – Protection by obstacles test method with the jointed test finger mounted
88 on a straight stick. . 22
89 Figure 206 – Jointed test finger mounted on a straight stick . 23
90 Figure 207 – Protection by electro-sensitive equipment . 23
91 Figure 1 – Example of an SPD-assembly having one voltage switching type SPD
92 between side B live conductors (DC+/DC-) and protective conductor . 28
93 Figure 208 - Hazardous voltage logo according to ISO 7010 – W012 . 30
94 Figure 209 – General test setup for system C with an automated connection device . 31
95 Figure BA.4 – FPT control sequence . 40
96 Figure CC.200 − Recommended control pilot circuit for case D ACD . 50
97 Figure CB.201 – Circuit diagram of a system C EV supply equipment with automatic
98 coupler . 51
99 Figure B.202 – Example of a sequence diagram .
...
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