GB/T 18487.1-2023 English PDF (GBT18487.1-2023)

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GB/T 18487.1-2023: Electric vehicle conductive charging system - Part 1: General requirements
GB/T 18487.1-2023
ChaoJi-1 (Chinese standard GB/T) and compatible CHAdeMO-3.1 (Japanese standard, joint-development with Chinese standard) are consisted of GB/T 18487.1-2023, GB/T27930-2023, and GB/T 20234.4-2023. It is suitable for high, medium and low power charging (up to 1.2MW) to meet the needs of safe and fast electric-vehicle charging.

GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
CCS T 35
Replacing GB/T 18487.1-2015
Electric vehicle conductive charging system - Part 1:
General requirements
ISSUED ON: SEPTEMBER 07, 2023
IMPLEMENTED ON: APRIL 01, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
Introduction ... 11
1 Scope ... 13
2 Normative references ... 14
3 Terms and definitions ... 17
4 Classification ... 47
5 General requirements for charging system ... 50
6 Communication ... 54
7 Electric shock protection ... 55
8 Connection between electric vehicle and EV energy transfer ... 62
9 Vehicle adaptor ... 64
10 Special requirements for vehicle coupler and EV plug and socket-outlet ... 64
11 Structure requirements for EV energy transfer equipment ... 67
12 Performance requirements for EV energy transfer equipment ... 73
13 Overload protection and short circuit protection ... 78
14 Emergency stop ... 79
15 Service condition ... 79
16 Maintenance and repair ... 81
17 Marking and description ... 81
Appendix A (Normative) AC charging control pilot circuit and control principle ... 83
Appendix B (Normative) DC charging control pilot circuit and control principle of
connection set for charging in GB/T 20234.3 ... 115
Appendix C (Normative) DC charging control pilot circuit and control principle of
connection set for charging in GB/T 20234.4 ... 129
Appendix D (Informative) Vehicle power supply circuit voltage adaptability switching
... 171
Appendix E (Informative) V2G DC bi-directional charging technical solution using the
connection set for charging specified in GB/T 20234.4 ... 175
Appendix F (Normative) DC charging technology for multi-vehicle couplers ... 182
Appendix G (Normative) Technical solution on DC charging compatibility using
vehicle adapter specified in GB/T 20234.4 ... 187
Electric vehicle conductive charging system - Part 1:
General requirements
1 Scope
This document specifies classification, general requirements, communication, electric
shock protection, connection between electric vehicle and EV energy transfer
equipment, special requirements of vehicle adaptor, vehicle coupler and EV plug and
socket-outlet, EV energy transfer equipment structure requirement, performance
requirement, overload protection and short circuit protection, emergency stop, service
conditions, repair, marking and description for electric vehicle conductive charging
system.
Note 1: Where no confusion is caused, the “EV energy transfer equipment” in this
document is referred to as “supply equipment”.
This document is applicable to current-controlled and/or voltage-controlled off-board
conductive power supply equipment to achieve one-way/two-way energy flow between
the electric vehicle rechargeable electrical energy storage system and the power supply
network (power supply). The rated voltage of the power supply network side (side A)
does not exceed 1 000 V AC or 1 500 V DC, and the rated maximum voltage of the
electric vehicle side (side B) does not exceed 1000 V AC or 1 500 V DC.
This document is also applicable to EV supply equipment which acquires energy from
onsite energy storage system (such as buffer battery).
This document applies to conductive charging or bi-directional charging systems of
electric vehicles that can be externally charged or bi-directional charged, including
battery electric vehicles, off-vehicle-chargeable hybrid electric vehicles and fuel cell
hybrid electric vehicles.
It also applies, as a reference, to conductive charging or bi-directional charging systems
of trams, railway vehicles, industrial vehicles, etc.
This document is not applicable to safety requirements on maintenance of electric
vehicle conductive charging/bi-directional charging system, or to the on-board charging
equipment as specified in GB/T 40432, or to trolleybus.
Refer to the relevant standards of electric vehicles for requirements for components
other than the key components of electric vehicle specified in this document (vehicle
side vehicle inlet, control pilot circuit, EV disconnection device).
-- mode 3;
-- mode 4.
Note: More than one charging mode may coexist on the same EV supply equipment.
5 General requirements for charging system
5.1 Service conditions of electric vehicle charging mode
5.1.1 Mode 1
Mode 1 charging system uses standard plug to connect standard socket-outlet and shall
adopt single-stage AC power supply not greater than 8 A and 250 V during energy
transmission. The plug and socket-outlet conforming to GB 2099.1 and GB 1002 shall
be used at the supply side. stage line, neutral line and protective earthing conductor as
well as residual current protective device are used at the supply side. Protective earthing
conductor shall be provided from standard socket-outlet to electric vehicle.
Mode 1 shall not be used to charge electric vehicle.
5.1.2 Mode 2
Mode 2 charging system uses standard plug to connect standard socket-outlet and shall
adopt single-stage AC power supply during energy transmission. When 10 A standard
plugs and socket-outlets conforming to GB 2099.1 and GB 1002 or NB/T 10202 are
used at the supply side, the output shall not exceed 8 A. When plugs and socket-outlets
conforming to GB/T 11918.1 and GB/T 11918.2 are used at the supply side, the output
shall not exceed 32 A. Single-stage two-pole plugs and socket-outlets specified in GB/T
1002 shall not be used on the power side. Properly installed standard socket-outlets
including stage lines, neutral wires and protective earthing conductors shall be used at
the power supply side, and in-cable control and protection devices (IC-CPDs) shall be
used to connect the power supply network (power supply) and the electric vehicle. It
includes plugs that integrate additional functions such as temperature detection, residual
current protection, switching, etc., the rest of which complies with the requirements of
the above standards, and meets the test requirements of relevant standards.
Protective earthing conductor having residual current protection and overcurrent
protection functions shall be provided from standard socket-outlet to electric vehicle.
The control pilot function of mode 2 shall comply with Appendix A.
5.1.3 Mode 3
Mode 3 is applicable to that the power supply equipment connected to AC supply
network connects electric vehicle and AC supply network and special protection device
is installed on EV supply equipment.
-- confirmation of the right connection of electric vehicle and power supply
equipment;
-- power supply control function;
-- outage control function of power supply equipment;
-- applicable maximum current allowed;
-- electric vehicle charge wake-up function.
When EV supply equipment is capable of performing energy transfer with multiple
electric vehicles simultaneously, it needs to ensure that the above control pilot functions
shall operate independently and normally at each charging connecting point.
5.2.1.2 Continuous monitoring of the...