GB/T 34657.1-2025: Interoperability test specifications of electric vehicle conductive charging - Part 1: Supply equipment

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Scope

This document specifies the inspection rules, test conditions, test cases for conducting
charging interoperability testing of conductive power supply equipment (CPSE) in
electric vehicle power transmission systems.
This document applies to electric vehicle AC power supply equipment that complies
with GB/T 18487.1-2023 and electric vehicle DC power supply equipment that
complies with GB/T 18487.1-2023 or GB/T 18487.5-2024.
Note 1.In this document, Class A systems refer to charging systems that utilize the GB/T
20234.3 vehicle interface and whose control and guidance circuits comply with Appendix B of
GB/T 18487.1-2023; Class B systems refer to charging systems that utilize the GB/T 20234.4
vehicle interface and whose control and guidance circuits comply with Appendix C of GB/T
18487.1-2023; Class C systems refer to charging systems that utilize the GB/T 20234.3 vehicle
interface and whose control and guidance circuits comply with Appendix A and Appendix B.3
of GB/T 18487.5-2024.
Note 2.The DC power supply equipment for electric vehicles with charging and discharging
functions specified in this document is limited to Class B and Class C systems.

Basic Data

Standard ID	GB/T 34657.1-2025 (GB/T34657.1-2025)
Description (Translated English)	Interoperability test specifications of electric vehicle conductive charging - Part 1: Supply equipment
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	T35
Classification of International Standard	43.040.99
Word Count Estimation	126,167
Date of Issue	2025-08-29
Date of Implementation	2026-03-01
Older Standard (superseded by this standard)	GB/T 34657.1-2017
Issuing agency(ies)	State Administration for Market Regulation; Standardization Administration of China