Home / Standards / GB/T 46890-2025 GB/T 46890-2025 Upcoming Oil and gas pipeline control system—Electrical protection application requirement for I/O interface 油气管道控制系统 I/O接口电气防护应用要求 Standard Type GBT ICS 25.040 CCS N10 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A