Home / Standards / GB/T 44639.4-2024 GB/T 44639.4-2024 Active Railway applications—Energy measurement on board trains—Part 4: Communication 轨道交通 列车电能测量系统 第4部分:通信 Standard Type GBT ICS 45.060 CCS S 34 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 国家铁路局 Drafting Unit N/A