China 'GB/T 42149-2022
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 42149-2022
Rail transit Ground installations Technical specifications for current protection of medium-voltage power supply systems based on digital communication 轨道交通 地面装置 基于数字通信的中压供电系统电流保护技术规范
Issued Date:2022/12/30
Implemented Date:2023/7/1
Issued by:
The Standardization Administration of the People's Republic of China