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GB/T 20234.2-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
T 35
Replacing GB/T 20234.2-2011
Connection Set for Conductive Charging of
Electric Vehicles - Part 2. AC Charging Coupler
ISSUED ON. DECEMBER 28, 2015
IMPLEMENTED ON. JANUARY 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative References ... 5 
3 Terminologies and Definitions ... 5 
4 General Requirements ... 5 
5 Rated Values of AC Charging Coupler ... 6 
6 Functions of Charging Coupler ... 6 
7 Dimensions ... 8 
Appendix A (Normative) Structure Dimensions of Charging Coupler ... 10 
Appendix B (Informative) Examples for Installation Dimensions of Vehicle-socket and
Supply-socket in Charging Mode 3 ... 14 
Appendix C (Normative) Spatial Size Requirements of Vehicle-plug and Supply-plug
in Charging Mode 3 ... 17 
Bibliography ... 19 
Foreword
GB/T 20234 “Connection Set of Conductive Charging for Electric Vehicles” consists of
3 parts.
- Part 1. General Requirements;
- Part 2. AC charging coupler;
- Part 3. DC charging coupler.
This Part is Part 2 of GB/T 20234.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces "Connection Set of Conductive Charging for Electric Vehicles - Part
2. AC Charging Coupler" (GB/T 20234.2-2011). Compared with GB/T 20234.2-2011,
the main technical changes are as follows.
- The requirement “the rated current shall not exceed 32A” was modified to “the
rated current shall not exceed 63A” (see Chapter 1);
- 10A and 63A were added among the rated current values of charging coupler
(see Table 1);
- The function of spare contact was extended to three-phase charging function
(see Table 2);
- R4 resistance was added (see Figure 3);
- The content of control pilot circuit and control principle was deleted (see
Appendix A of 2011 edition);
- Some dimensions of control pilot contact and mechanical lock of charging
coupler were modified; drainage holes (optional) in socket were added; seal ring
was modified as optional (see Appendix A);
- The spatial size requirements of plug were modified and adjusted as a normative
appendix (see Appendix C).
This Part was proposed by the Ministry of Industry and Information Technology of the
People's Republic of China.
This Part shall be under the jurisdiction of the National Technical Committee on
Automobiles of Standardization Administration of China (SAC/TC 114).
Main drafting organizations of this Part. China Automotive Technology & Research
Center, State Grid Corporation of China AND China National Electric Apparatus
Research Institute Co., Ltd.
Participating drafting organizations of this Part. China Electricity Council, Nanjing Nari
Group Corporation, BYD Auto Industry Company Limited, SAIC Motor Corporation
Limited R&D Center, Xuji Group Corporation, China Electric Power Research Institute,
BYD Daimler New Technology Co., Ltd., Suzhou Chilye Environmental Protection
Science and Technology Co., Ltd., China FAW Group Corporation R&D Center,
Chongqing Chang’an New Energy Automobile Co., Ltd., Amphenol PCD Shenzhen
Co., Ltd., Nanjing Phoenix Contact Co., Ltd., Potevio New Energy Co., Ltd. AND Anhui
Jianghuai Automobile Co., Ltd.
Chief drafters of this Part. Lian Yubo, Zhou Rong, Wu Bin, Wang Hongjun, Zhu
Daoping, Zhao Xiang, Yin Jiatong, Huang Wei, Liu Yongdong, Shao Zhehai, Meng
Xiangfeng, Zhang Tianqiang, Shi Shuanglong, Lv Guowei, Yuan Changrong, Wang
Zhicheng, Xu Xiao, Zhou Guangrong, Shuai Qiangjun, Chen Ling, Tang Wuwu, Li
Xiaoqiang, Chen Xiaonan, Zhao Jiuzhi and Wu Zhiqiang.
The previous edition replaced by this Part is.
- GB/T 20234.2-2011.
Connection Set for Conductive Charging of Electric
Vehicles - Part 2. AC Charging Coupler
1 Scope
This Part of GB/T 20234 specifies the general requirements, function definitions, type
structures, parameters and dimensions of AC charging coupler for conductive charging
of electric vehicles
This Part is applicable to AC charging coupler for conductive charging of electric
vehicles, of which the rated voltage shall not exceed 440V(AC), the frequency shall be
50Hz, and the rated current shall not exceed 63A(AC).
Note. If the plugs and socket-outlets of AC charging coupler adopt the standardized plugs and socket-outlets complying
with GB 2099.1 and GB 1002, then this Part is not applicable to these plugs and socket-outlets.
2 Normative References
The following documents for the application of this document are essential. For dated
reference, only the dated edition applies to this document. For undated references, the
latest edition (including any amendments) applies to this document.
GB/T 18487.1 Electric Vehicle Conductive Charging System - Part 1. General
Requirements
GB/T 20234.1 Connection Set for Conductive Charging of Electric Vehicles -
Part 1. General Requirements
3 Terminologies and Definitions
For the purposes of this document, the terminologies and definitions defined in GB/T
20234.1 apply.
4 General Requirements
The technical requirements and test methods of AC charging coupler shall meet the
requirements of GB/T 20234.1.
5 Rated Values of AC Charging Coupler
The rated values of AC charging coupler are detailed in Table 1.
Table 1 Rated Values of AC Charging Coupler
Rated voltage
Rated current
6 Functions of Charging Coupler
6.1 Electrical parameters and functions
7 pairs of contacts are respectively included in vehicle-coupler and supply-coupler in
charging mode 3, and their electrical parameters and function definitions are detailed
in Table 2.
Table 2 Electrical Parameters and Function Definitions of Contacts
Contact No.
/identification Rated voltage and current Function definition
1-(L1)
250 V 10 A/16 A/32 A AC power supply (single-phase)
440 V 16 A/32 A/63 A AC power supply (three-phase)
2-(L2) 440 V 16 A/32 A/63 A AC power supply (three-phase)
3-(L3) 440 V 16 A/32 A/63 A AC power supply (three-phase)
4-(N)
250 V 10 A/16 A/32 A Neutral line (single-phase)
440 V 16 A/32 A/63 A Neutral line (three-phase)
5-( ) -
Protective earthing (PE), for connecting earth wire of power
supply equipment and electrical chassis of vehicle
6-(CC) 0 V~30 V 2 A Charging connection confirmation
7-(CP) 0 V~30 V 2 A Control pilot
6.2 Contact arrangement mode
The contact arrangement modes of the vehicle-coupler and supply-coupler in charging
mode 3 are shown in Figure 1 and Figure 2.
Bibliography
[1] GB 1002 Single Phase Plugs and Socket-outlets for Household and Similar
Purposes - Types Basic Parameters and Dimensions
[2] GB 2099.1 Plugs and Socket-outlets for Household and Similar Purposes - Part
1. General Requirements
......