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BS EN IEC 61851-1:2019:2022 Edition

BS EN IEC 61851-1:2019:2022 Edition

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Electric vehicle conductive charging system – General requirements

Published By Publication Date Number of Pages
BSI 2022 154
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IEC 61851-1:2017 applies to EV supply equipment for charging electric road vehicles, 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 1 000 V AC or up to 1 500 V DC. Electric road vehicles (EV) cover all road vehicles, including plug-in hybrid road vehicles (PHEV), that derive all or part of their energy from on-board rechargeable energy storage systems (RESS). The aspects covered in this standard include: –  the characteristics and operating conditions of the EV supply equipment; –  the specification of the connection between the EV supply equipment and the EV; –  the requirements for electrical safety for the EV supply equipment. This third edition cancels and replaces the second edition published in 2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The contents of IEC 61851-1:2010 have been re-ordered. Numbering of clauses has changed as new clauses were introduced and some contents moved for easy reading. The following lines give an insight to the new ordering in addition to the main technical changes. b) All requirements from IEC 61851-22 have been moved to this standard, as work on IEC 61851-22 has ceased. c) Any requirements that concern EMC have been removed from the text and are expected to be part of the future version of 61851-21-2. d) Clause 4 contains the original text from IEC 61851-1:2010 and all general requirements from Clause 6 of IEC 61851-1:2010. e) Clause 5 has been introduced to provide classifications for EV supply equipment. f)  Previous general requirements of Clause 6 have been integrated into Clause 4. Clause 6 contains all Mode descriptions and control requirements. Specific requirements for the combined use of AC and DC on the same contacts are included. g) Clause 9 is derived from previous Clause 8. Adaptation of the description of DC accessories to allow for the DC charging modes that have only recently been proposed by industry and based on the standards IEC 61851-23, IEC 61851-24 as well as IEC 62196-1, IEC 62196-2 and IEC 62196-3. Information and tables contained in the IEC 62196 series standards have been removed from this standard. h) Clause 10 specifically concerns the requirements for adaptors, initially in Clause 6. i)  Clause 11 includes new requirements for the protection of the cable. j)  Specific requirements for equipment that is not covered in the IEC 62752 remain in the present document. k) Previous Clause 11 is now treated in Clauses 12 to 13. The requirements in 61851-1 cover the EV supply equipment of both mode 2 and mode 3 types, with the exception in-cable control and protection devices for mode 2 charging of electric road vehicles (IC-CPD) which are covered by IEC 62752. l)  Clause 14 gives requirements on automatic reclosing of protection equipment. m) Clause 16 gives requirements for the marking of equipment and the contents of the installation and user manual. This makes specific mention of the need to maintain coherence with the standards for the fixed installation. It also contains an important text on the markings for temperature ratings. n)  Annex A has been reviewed to introduce complete sequences and tests and to make the exact cycles explicit. Annex A in this edition supersedes IEC TS 62763 (Edition 1). o)  Annex B is normative and has requirements for proximity circuits with and without current coding. p)  Previous Annex C has been removed and informative descriptions of pilot function and proximity function implementations initially in Annex B are moved to Annex C. q)  New informative Annex D describing an alternative pilot function system has been introduced. r)   Dimensional requirements for free space to be left around socket-outlets used for EV energy supply are given in the informative Annex E. s)  The inclusion of protection devices within the EV supply equipment could, in some cases, contribute to the protection against electric shock as required by the installation. This is covered by the information required for the installation of EV supply equipment in Clause 16 (Marking).

PDF Catalog

PDF Pages PDF Title
2 undefined
8 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
12 Annex ZZ(informative)Relationship between this European standard and the safety objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be covered
15 English
CONTENTS
22 FOREWORD
25 INTRODUCTION
27 1 Scope
28 2 Normative references
30 3 Terms and definitions
3.1 Electric supply equipment
31 Figures
Figure 1 – Case A connection
Figure 2 – Case B connection
32 3.2 Insulation
Figure 3 – Case C connection
33 3.3 Functions
34 3.4 Vehicle
3.5 Cords, cables and connection means
37 3.6 Service and usage
38 3.7 General terms
40 4 General requirements
5 Classification
5.1 Characteristics of power supply and output
5.1.1 Characteristics of power supply input
41 5.1.2 Characteristics of power supply output
5.2 Normal environmental conditions
5.3 Special environmental conditions
5.4 Access
5.5 Mounting method
5.6 Protection against electric shock
42 5.7 Charging modes
6 Charging modes and functions
6.1 General
6.2 Charging modes
6.2.1 Mode 1
43 6.2.2 Mode 2
6.2.3 Mode 3
6.2.4 Mode 4
44 6.3 Functions provided in Mode 2, 3 and 4
6.3.1 Mandatory functions in Modes 2, 3, and 4
45 6.3.2 Optional functions for Modes 2, 3 and 4
46 7 Communications
7.1 Digital communication between the EV supply equipment and the EV
47 7.2 Digital communication between the EV supply equipment and the management system
8 Protection against electric shock
8.1 Degrees of protection against access to hazardous-live-parts
48 8.2 Stored energy
8.2.1 Disconnection of plug connected EV supply equipment
8.2.2 Loss of supply voltage to permanently connected EV supply equipment
8.3 Fault protection
8.4 Protective conductor
49 8.5 Residual current protective devices
50 8.6 Safety requirements for signalling circuits between the EV supply equipment and the EV
8.7 Isolating transformers
9 Conductive electrical interface requirements
9.1 General
9.2 Functional description of standard accessories
51 9.3 Functional description of the basic interface
9.4 Functional description of the universal interface
9.5 Functional description of the DC interface
9.6 Functional description of the combined interface
9.7 Wiring of the neutral conductor
52 10 Requirements for adaptors
11 Cable assembly requirements
11.1 General
11.2 Electrical rating
53 11.3 Dielectric withstand characteristics
11.4 Construction requirements
11.5 Cable dimensions
11.6 Strain relief
11.7 Cable management and storage means for cables assemblies
54 12 EV supply equipment constructional requirements and tests
12.1 General
12.2 Characteristics of mechanical switching devices
12.2.1 General
12.2.2 Switch and switch-disconnector
55 12.2.3 Contactor
12.2.4 Circuit-breaker
12.2.5 Relays
12.2.6 Inrush current
12.2.7 Residual direct current monitoring device (RDC MD)
12.3 Clearances and creepage distances
56 12.4 IP degrees
12.4.1 Degrees of protection against solid foreign objects and water for the enclosures
12.4.2 Degrees of protection against solid foreign objects and water for basic, universal and combined and DC interfaces
57 12.5 Insulation resistance
12.6 Touch current
Tables
Table 1 – Touch current limits
58 12.7 Dielectric withstand voltage
12.7.1 AC withstand voltage
12.7.2 Impulse dielectric withstand (1,2 μs/50 μs)
12.8 Temperature rise
59 12.9 Damp heat functional test
12.10 Minimum temperature functional test
12.11 Mechanical strength
13 Overload and short-circuit protection
13.1 General
60 13.2 Overload protection of the cable assembly
13.3 Short-circuit protection of the charging cable
14 Automatic reclosing of protective devices
61 15 Emergency switching or disconnect (optional)
16 Marking and instructions
16.1 Installation manual of EV charging stations
62 16.2 User manual for EV supply equipment
16.3 Marking of EV supply equipment
16.4 Marking of charging cable assemblies case B
63 16.5 Durability test for marking
64 Annexes
Annex A (normative) Control pilot function through a control pilot circuit using a PWM signal and a control pilot wire
A.1 General
A.2 Control pilot circuit
A.2.1 General
65 A.2.2 Typical control pilot circuit
Figure A.1 – Typical control pilot circuit (equivalent circuit)
66 A.2.3 Simplified control pilot circuit
A.2.4 Additional components and high frequency signals
Figure A.2 – Simplified control pilot circuit (equivalent circuit)
67 A.3 Requirements for parameters and system behaviour
Table A.1 – Maximum allowable high frequency signal voltageson control pilot conductor and the protective conductor
68 Table A.2 – Control pilot circuit parameters and values for the EV supply equipment
69 Table A.3 – EV control pilot circuit values and parameters and values for the EV
70 Table A.4 – System states detected by the EV supply equipment
72 Table A.5 – State behaviour
73 Figure A.3 – State diagram for typical control pilot (informative)
74 Figure A.4 – State diagram for simplified control pilot (informative)
Table A.6 – List of sequences
84 Table A.7 – PWM duty cycle provided by EV supply equipment
Table A.8 – Maximum current to be drawn by vehicle
85 A.4 Test procedures
A.4.1 General
A.4.2 Constructional requirements of the EV simulator
A.4.3 Test procedure
Table A.9 – Test resistance values
86 A.4.4 Oscillator frequency and generator voltage test
A.4.5 Duty cycle test
Table A.10 – Parameters of control pilot voltages
87 A.4.6 Pulse wave shape test
A.4.7 Sequences test
Table A.11 – Test parameters of control pilot signals
88 Figure A.5 – Test sequence using a typical control pilot circuit
Figure A.6 – Test sequence using the simplified control pilot circuit
Table A.12 – Parameters for sequence tests
89 A.4.8 Test of interruption of the protective conductor
A.4.9 Test of short-circuit values of the voltage
A.4.10 Example of a test simulator of the vehicle (informative)
Figure A.7 – Optional test sequence with interruption by EV supply equipment
91 Figure A.8 – Example of a test circuit (EV simulator)
92 A.4.11 Optional hysteresis test
Table A.13 – Position of switches
Table A.14 – Initial settings of the potentiometer at the beginning of each test
93 A.5 Implementation hints
A.5.1 Retaining a valid authentication until reaching CP State B
94 A.5.2 Load control using transitions between state x1 and x2
A.5.3 Information on difficulties encountered with some legacy EVs for wake-up after a long period of inactivity (informative)
95 Annex B (normative) Proximity detection and cable current coding circuits for the basic interface
B.1 Circuit diagram for vehicle couplers using an auxiliary switch associated with the proximity detection contact
Figure B.1 – Equivalent circuit diagram for proximity function using an auxiliary switch and no current coding
96 B.2 Circuit for simultaneous proximity detection and current coding
Table B.1 – Component values proximity circuit without current coding
97 Figure B.2 – Equivalent circuit diagram for simultaneous proximity detection and current coding
98 Table B.2 – Current coding resistor for EV plug and vehicle connector
99 Annex C (informative) Examples of circuit diagrams for a basic and universal vehicle couplers
C.1 General
C.2 Circuits diagrams for Mode 1, Mode 2 and Mode 3, using a basic single phase vehicle coupler
100 Figure C.1 – Example of Mode 1 case B using the proximity circuit as in B.1
101 Figure C.2 – Example of Mode 2 case B using proximity detection as in B.1
102 Figure C.3 – Example of Mode 3 case B using proximity detection as in B.1
103 C.3 Circuits diagrams for Mode 3, using a basic single phase or three-phase accessory without proximity switch
Figure C.4 – Example of Mode 3 case C using proximity detection as in B.1
104 C.4 Example of circuit diagram for Mode 4 connection using universal coupler
Figure C.5 – Example of Mode 3 case B using proximity detection as in B.2 (without proximity push button switch S3)
105 Figure C.6 – Example of Mode 4 case C using the universal vehicle coupler
Table C.1 – Component description for Figure C.6 Mode 4 case C
106 Annex D (informative) Control pilot function that provides LIN communicationusing the control pilot circuit
D.1 Overview
D.1.1 General
D.1.2 LIN-CP features
D.1.3 Normative references
107 D.1.4 Terms and abbreviations
D.2 Scope and context
108 Figure D.1 – Example of an EV charging system with a typical configuration of functions, information flow and power flow
109 D.3 Overview of control pilot functions
Table D.1 – Control pilot functions in LIN-CP and PWM-CP
110 D.4 Control pilot circuit
D.4.1 General
D.4.2 Control pilot circuit
Table D.2 – Additional LIN-CP control pilot functions
111 D.4.3 Charging station control pilot circuit interface
Figure D.2 – Electrical equivalent circuit for connection of LIN nodes to the control pilot circuit
112 D.4.4 EV control pilot circuit interface
D.4.5 LIN communication transceiver
Table D.3 – Generation and detection of CP voltage levels
113 D.4.6 Optional cable assembly node
D.5 Control pilot circuit interaction
D.5.1 General
Table D.4 – Generation and detection of LIN communication levels
114 D.5.2 Control pilot circuit states and transitions
Figure D.3 – Control pilot circuit state diagram for LIN-CP (key list in Table D.5)
115 D.6 System requirements
D.6.1 General
D.6.2 Control of LIN signals
Table D.5 – Key list for Figure D.3 and Figure D.9
116 D.6.3 Control of the S2 switch and the vehicle load current
D.6.4 Control of the switching device in the charging station
Table D.6 – Control of LIN signals
Table D.7 – Control of the S2 switch and the vehicle load
117 D.6.5 Control of latching and unlatching of IEC 62196-2 type 2 socket-outlets and vehicle inlets
Table D.8 – Control of the switching device
Table D.9 – Control of latching and unlatching
118 D.7 Charging sequences
D.7.1 General
D.7.2 Start-up of normal AC charging sequence
Figure D.4 – Example of timing diagram for start-up of normal AC charging sequence
119 Table D.10 – Timing for start-up of normal charging sequence
120 D.7.3 Normal EV-triggered stop of charging
Figure D.5 – Timing diagram for normal EV-triggered stop of charging
121 Table D.11 – Timing for normal EV-triggered stop of charging
122 D.7.4 Normal stop of charging triggered by charging station
Figure D.6 – Example of timing diagram for normal stopof charging triggered by charging station
123 D.8 LIN Communication
D.8.1 General
D.8.2 Schedules
Table D.12 – Timing for normal stop of charging triggered by charging station
124 Figure D.7 – State diagram of the LIN node in the charging station
125 Table D.13 – States of the LIN node in the charging station and frame schedule description
126 Table D.14 – Transitions of the LIN node in the charging station
130 D.8.3 Frames
131 Table D.15 – Frames for AC charging
133 D.8.4 Signals
138 Table D.16 – General signals
Table D.17 – Signals for version negotiation
139 Table D.18 – Signals for system initialization
140 Table D.19 – Signals for EV status information
Table D.20 – Signals for charging station status information
Table D.21 – Codes for the frame StNotReadyList
141 D.9 Requirements for charging stations and EVs that implement both LIN-CP and PWM-CP
D.9.1 General
D.9.2 Interoperability between charging stations and EVs
Table D.22 – Codes for frame EvS2openList
Table D.23 – Codes for frame StErrorList
Table D.24 – Codes for frame EvErrorList
142 D.9.3 Control pilot circuit hardware
D.9.4 Control pilot circuit functionality
Figure D.8 – Energy transfer between different charging stations and EVs that are equipped with accessories according to IEC 62196-2
143 D.9.5 Sequence to select LIN-CP or PWM-CP after plug-in
Figure D.9 – Control pilot circuit state diagram for LIN-CP and PWM-CP (See key list in Table D.5)
144 D.10 Procedures for test of charging stations
D.10.1 General
D.10.2 Test of normal use
D.10.3 Test of disconnection under load
Table D.25 – Normal charge cycle test
145 D.10.4 Overcurrent test
D.10.5 Test of interruption of LIN communication
D.10.6 Test of short circuit between the control pilot conductor and the protective conductor
D.10.7 Test of options
146 Annex E (informative) Charging station designed with a standard socket-outlet – Minimum gap for connection of Modes 1 and 2 cable assembly
E.1 Overview
E.2 General
Figure E.1 – Examples of standard plugs that are considered for this Annex E
147 E.3 Minimum gap for connection of Mode 2 cables with type E/F plug and socket-outlet systems
E.4 Minimum gap for connection of Mode 2 cables with type BS1363 plug and socket-outlet systems
E.5 Minimum gap for connection of Mode 2 cables with IEC 60309-2 straight plug and socket-outlet systems
148 Figure E.2 – Packaging configurations allowing the use of a large part of the common products for standard plugs and socket-outlets
149 Bibliography

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