IEC 60904-1:20 20描述了在自然或模拟阳光下测量光伏（PV）器件的电流-电压特性（I-V曲线）的程序。这些程序适用于单个PV太阳能电池、PV太阳能电池的子组件或PV模块。参考（通常但不限于）IEC 60904-3中定义的全局参考光谱辐照度AM1.5，本文件适用于在陆地环境中使用的非聚光PV设备。 这第三版取消并取代了2006年出版的第二版。与上一版相比，主要变化如下: -更新范围以包括所有条件。 -增加了术语和定义。 -重组文件以避免不必要的重复。 -增加了数据分析条款。 -增加了信息性附件（面积测量、带电容的PV器件、暗I-V曲线和辐照度空间不均匀性的影响）。

IEC 60904-1:2020 describes procedures for the measurement of current-voltage characteristics (I-V curves) of photovoltaic (PV) devices in natural or simulated sunlight. These procedures are applicable to a single PV solar cell, a sub-assembly of PV solar cells, or a PV module. This document is applicable to non-concentrating PV devices for use in terrestrial environments, with reference to (usually but not exclusively) the global reference spectral irradiance AM1.5 defined in IEC 60904-3.
This third edition cancels and replaces the second edition published in 2006. The main changes with respect to the previous edition are as follows:
- Updated scope to include all conditions.
- Added terms and definitions.
- Reorganised document to avoid unnecessary duplication.
- Added data analysis clause.
- Added informative annexes (area measurement, PV devices with capacitance, dark I-V curves and effect of spatial non-uniformity of irradiance).