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GB 44263-2024 English PDF (GB44263-2024)

GB 44263-2024 English PDF (GB44263-2024)

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GB 44263-2024: Safety requirements for electric vehicle conductive charging system
GB 44263-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
CCS T 35
Safety requirements for electric vehicle conductive charging
system
ISSUED ON. JULY 24, 2024
IMPLEMENTED ON. AUGUST 01, 2025
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 5
4 Symbols and abbreviations... 8
5 General requirements... 8
6 Charging interface safety... 9
7 AC charging safety... 10
8 DC charging safety... 13
9 Test methods... 19
10 Implementation of the standard... 37
Appendix A (Normative) DC charging control pilot circuit for GB/T 20234.3... 38
Safety requirements for electric vehicle conductive charging
system
1 Scope
This document specifies the requirements for the overall safety, charging interface
safety, AC charging safety, DC charging safety of electric vehicle conductive charging
systems; describes the corresponding test methods.
This document is applicable to electric vehicle AC charging systems and electric vehicle
DC charging systems, whose rated voltage on the power grid side does not exceed 1000
V (AC) or 1500 V (DC), and the rated maximum voltage on the electric vehicle side
does not exceed 1000 V (AC) or 1500 V (DC). It is also applicable to the safety
requirements for charging in electric vehicle’s charging and discharging systems.
This document does not apply to.
- Safety requirements related to the maintenance of electric vehicle’s conductive
charging/charging and discharging systems;
- Automatic charging systems such as top contact charging systems.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. For dated references, only the version
corresponding to that date applies to this document; for undated references, the latest
version (including all amendments) applies to this document.
GB 1002 Single phase plugs and socket-outlets for household and similar purposes
- Types, basic parameters and dimensions
GB/T 2099.1 Plugs and socket-outlets for household and similar purposes - Part 1.
General requirements
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code)
GB/T 11918.1-2014 Plugs, socket-outlets and couplers for industrial purposes - Part
1.General requirements
GB/T 11918.2-2014 Plugs, socket-outlets and couplers for industrial purposes - Part
2.Dimensional compatibility and interchangeability requirements for pin and
current shall not exceed 32 A (AC).
5.1.3 Equipment used in non-restricted places shall not use vehicle adapters that do not
comply with the provisions of the corresponding national standards.
5.2 Prerequisites for the implementation of this document
The prerequisite for the implementation of this document is that the power supply
equipment shall comply with the provisions of GB 39752 and the electric vehicle shall
comply with the provisions of GB 18384.
6 Charging interface safety
6.1 Charging interface protection level
The protection level of the charging interface against dangerous parts shall meet the
following requirements.
a) Connection method B or connection method C; when the vehicle plug is coupled
with the vehicle socket, the vehicle plug and the vehicle socket. IPXXD;
b) Mode 3, connection method A or connection method B; when the power plug is
coupled with the power socket, the power plug and the power socket. IPXXD.
6.2 Charging interface temperature protection function
6.2.1 AC charging interface temperature protection function
The AC charging interface has the following temperature protection functions.
- For the AC power supply equipment using connection method A or connection
method B, which has a maximum charging current greater than 16 A (AC), it shall
have the temperature protection function of the power socket.
- For the AC power supply equipment using three-phase AC charging and whose
maximum charging current is greater than 32 A (AC), it shall have the temperature
protection function of the vehicle plug.
- For the electric vehicles which have a maximum charging current of the on-board
charger greater than 16 A (AC), it shall have the temperature protection function of
the vehicle socket.
6.2.2 DC vehicle interface temperature protection function
The DC vehicle interface has the following temperature protection functions.
- The DC power supply equipment shall have the function of monitoring the vehicle
plug temperature. When the vehicle plug temperature is abnormal, the DC power
supply equipment shall reduce the charging power or trigger a fault shutdown.
- Electric vehicles shall have the temperature protection function of the vehicle
socket.
7 AC charging safety
7.1 System design safety
7.1.1 Control pilot circuit
The AC power supply system has a control pilot function.
- In mode 2, the control pilot circuits of the AC power supply equipment and electric
vehicles shall comply with the provisions of A.1.2 in GB/T 18487.1-2023.
- In mode 3, the control pilot circuits of the AC power supply equipment and electric
vehicles shall comply with the provisions of A.1.1 in GB/T 18487.1-2023.
7.1.2 Charging cable current carrying capacity detection function
Electric vehicles shall have the ability to confirm the rated capacity of the charging
cable, by monitoring whether the resistance value between testing point 3 and PE
complies with Table A.5 in GB/T 18487.1-2023.The charging current in the energy
transmission stage shall not exceed the power supply capacity of the AC power supply
equipment and the current carrying value of the charging cable, whichever is smaller.
7.1.3 Equipment power supply capacity declaration function
The AC power supply equipment shall be able to inform the electric vehicle of the
current power supply capacity, by setting the PWM signal duty cycle. The relationship
between the duty cycle generated by the AC power supply equipment and the charging
current limit shall comply with the requirements of Table A.2 in GB/T 18487.1-2023.
7.1.4 Interface locking function
During the energy transmission stage, when the charging current of the AC charging
system is greater than 16 A (AC), the power supply socket of the AC power supply
equipment (connection method A or connection method B) and the vehicle socket of
the electric vehicle (connection method B or connection method C) shall be reliably
locked.
7.1.5 Contact sticking detection function
The AC power supply equipment shall have a contactor (or similar device) sticking
detection function. When the following contact sticking occurs, the AC power supply
During the charging process, the AC power supply equipment shall have the ability to
determine the vehicle interface connection status by monitoring the voltage value of
testing point 1.
Before energy transmission, when a CP disconnection/grounding fault occurs, the AC
power supply equipment shall not be able to charge and comply with the provisions of
A.3.10.12 in GB/T 18487.1-2023.
During the energy transmission stage, the following faults occur.
- When the electrical continuity of the protective grounding conductor is lost, the AC
charging equipment shall stop charging and comply with the provisions of A.3.10.6
in GB/T 18487.1-2023.
- When the CP is disconnected/grounded, the AC charging equipment shall...
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