GB 44263-2024 Safety requirements for electric vehicle conductive charging system
1 Scope
This document specifies the requirements for the overall safety, charging coupler safety, AC charging safety and DC charging safety of electric vehicle conductive charging system, and describes the corresponding test methods.
This document is applicable to electric vehicle AC charging system and electric vehicle DC charging system, wherein, the rated voltage on the supply network side does not exceed 1,000V (AC) or 1,500V (DC), and the rated maximum voltage on the electric vehicle side does not exceed 1,000V (AC) or 1,500V (DC). It is also applicable to the safety requirements for charging in the electric vehicle charging and discharging system.
This document is not applicable to:
——safety requirements related to the maintenance of conductive charging/charging and discharging system of electric vehicles;
——automatic charging systems such as top contact charging system.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
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-outlet and couplers for industrial purposes - Part 1: General requirements
GB/T 11918.2-2014 Plug, socket-outlets and couplers for industrial purposes - Part 2: Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories
GB 18384 Electric vehicles safety requirements
GB/T 18487.1-2023 Electric vehicle conductive charging system - Part 1: General requirements
GB/T 20234.1-2023 Connection set for conductive charging of electric vehicles - Part 1: General requirements
GB/T 20234.3 Connection set for conductive charging of electric vehicles - Part 3: DC charging coupler
GB/T 20234.4 Connection set of conductive charging for electric vehicles - Part 4: High power DC charging coupler
GB/T 27930-2023 Digital communication protocols between off-board conductive charger and electric vehicle
GB/T 34657.1 Interoperability test specifications of electric vehicle conductive charging - Part 1: Supply equipment
GB/T 34657.2 Interoperability test specifications of electric vehicle conductive charging - Part 2: Vehicle
GB 39752 Safety requirements of electric vehicle conductive supply equipment
NB/T 10202 Plugs with thermal protection function for charging mode 2 of electric vehicles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 18487.1-2023 and GB/T 20234.4 as well as the following apply.
3.1
electric vehicle conductive charging system
electric vehicle charging system using conductive charging
3.1.1
electric vehicle AC charging system
charging system that provides AC power to on-board chargers for electric vehicles
Note: The scope of electric vehicle AC charging system specified in this document is shown in Figure 1.
Key:
L1, L2 and L3 ——phase lines of AC power supply;
N ——neutral line of AC power supply;
C1, C2... ——contactor/relay.
The plug and socket-outlet corresponds to case A connection or case B connection; the vehicle coupler corresponds to case B connection or case C connection.
Figure 1 Scope of electric vehicle AC charging system as defined in this document
[Source: GB/T 18487.1-2023, 3.1.7.2, modified]
3.1.2
electric vehicle DC charging system
charging system that provides DC power for the rechargeable electrical energy storage system of electric vehicles
Note: The scope of electric vehicle DC charging system specified in this document is shown in Figure 2.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 General requirements
6 Charging coupler safety
7 AC charging safety
8 DC charging safety
9 Test methods
10 Implementation of this standard
Annex A (Normative) DC charging control pilot circuit for GB/T 20234.3
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