GB/T 18487.1-2023 PDF English

GB/T18487.1-2023 (GBT18487.1-2023): PDF in English

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 3 standards. 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 continuity of protective earthing conductor When charging at modes 2, 3 and 4, the electrical continuity of protective earthing conductor shall be monitored continuously by EV supply equipment. Note: The above requirement is not applicable to Category II equipment. For mode 2, monitoring is carried out between electric vehicle and in-cable control and protection device. For modes 3 and 4, monitoring is carried out between electric vehicle and EV supply equipment. In case that the electrical continuity of protective earthing conductor is detected to be lost during the energy transfer stage, the power supply circuit of EV supply equipment shall be cut off, which shall meet the corresponding requirements of A.3.10.6, B.4.7.5 and C.7.13.3. 5.2.1.3 Confirmation of the right connection of electric vehicle and power supply equipment The supply equipment shall be able to determine that the vehicle connector or EV plug is plugged into the vehicle inlet or EV socket-outlet correctly. 5.2.1.4 Power supply control function Only when the control pilot function between EV supply equipment and electric vehicle establishes correct relationship with the allowable power-on state signal, EV supply equipment can supply electricity to electric vehicle. However, it shall not automatically enter the discharge mode. Only when it receives a direct or indirect instruction from the power supply network to allow discharge and the discharge conditions of the electric vehicle are met, can the electric vehicle discharge to the power supply network through the charging and discharging equipment. 5.2.1.5 Outage control function of power supply equipment When the control pilot function is interrupted, or the control pilot signal is not allowed for charging/discharging, or a discharge and power outage command is received, or other conditions that do not allow energy transfer are detected, the energy transfer between the power supply equipment and the electric vehicle shall be cut off, but its control pilot circuit may remain powered. Note: Outage may be the result of other reasons, e.g., power off. 5.2.1.6 Applicable maximum current allowed The power supply equipment shall be able to inform the electric vehicle of the applicable maximum current through PWM (mode 2 and mode 3) or digital communication (mode 4). This value shall not exceed any of the following: -- rated operating current of power supply equipment; -- rated current of cable assembly; -- Maximum allowable discharge current.......
Source: https://www.ChineseStandard.net/PDF.aspx/GBT18487.1-2023