Home / Standards / GB/T 6495.5-2025 GB/T 6495.5-2025 Upcoming Photovoltaic devices—Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic devices by the open-circuit voltage method 光伏器件 第5部分:用开路电压法确定光伏器件的等效电池温度(ECT) Standard Type GBT ICS 27.160 CCS K83 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A