Home / Standards / GB/T 46959-2025 GB/T 46959-2025 Upcoming Short-circuit power calculation in three-phase a.c. systems 三相交流系统短路容量计算 Standard Type GBT ICS 29.240.20 CCS F 20 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 中国电力企业联合会 Drafting Unit N/A