Home / Standards / GB/T 46981-2025 GB/T 46981-2025 Active Extended thermal cycling of PV modules—Test procedure 光伏组件扩展热循环 试验程序 Standard Type GBT ICS 27.160 CCS K83 Status 现行 Issue Date 2025-12-31 Implementation 2026-04-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A