1.1 这些测试方法提供了在模拟温度和湿度环境中对光伏组件施加应力的程序。环境测试用于模拟模块材料的加速老化。 1.2 这些试验方法定义了三个单独的环境试验程序:热循环程序、湿度冷冻循环程序和延长持续时间湿热程序。在热循环过程中利用电偏压来模拟现场部署模块中已知的应力。 1.3 这些测试方法定义了进行环境测试的模块的安装方法，并规定了必须记录和报告的参数。 1.4 这些测试方法不确定合格或不合格水平。可接受或不可接受结果的确定超出了这些试验方法的范围。 1.5 任何单独的环境试验都可以单独进行，也可以与其他环境或非环境试验组合成一个试验序列，或同时进行。作为该序列的一部分，某些预处理测试（如退火或光浸泡）也可能是必要的或可取的。 任何此类排序和预处理的确定超出了本试验方法的范围。 1.6 这些测试程序的持续时间有限，因此这些测试的结果不能用于确定光伏模块的寿命。 1.7 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.8 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 光伏组件的使用寿命可能取决于其承受空气中不同水分的重复温度循环的能力。这些试验方法提供了模拟循环温度和湿度环境影响的程序。 提供了一种延长持续时间的湿热程序，以模拟长期暴露在高湿度下的影响。 4.2 使用本试验方法规定了单独环境试验的持续时间；然而，根据IEC 61215和IEC 61646等模块鉴定标准的规定，通常使用的持续时间为50和200次热循环、10次湿度冻结循环和1000小时湿热暴露。延长持续时间的模块压力测试也可以指定更长的持续时间。 4.3 安装- 测试模块的安装应使其彼此电隔离，并以允许模块前后表面周围自由空气循环的方式进行。 4.4 电流偏置: 4.4.1 在热循环过程中，测试模块在没有照明的情况下运行，正向偏置电流等于标准报告条件下的最大功率点电流（SRC，见测试方法 E1036 )流经模块电路。 4.4.2 电流偏置旨在以类似于那些被认为是导致现场部署模块中填充因子退化的方式来强调模块互连和焊接。 4.5 试验程序的影响- 使用这些试验方法生成的数据可用于评估和比较模拟环境对试样的影响。 这些试验方法需要测定可见效应和电气性能效应。 4.5.1 对模块的影响可能从无到重大变化不等。当模块中没有明显的电气变化时，可以看到模块中的一些物理变化。类似地，在模块中没有可见变化的情况下，可能会发生电气变化。 4.5.2 报告中必须描述所有测量条件、循环影响以及与本试验方法的任何偏差，以便对其重要性进行评估。 4.6 排序- 如果这些试验方法与其他环境或非环境试验一起作为组合顺序的一部分进行，则最终电气试验的结果( 6.2 )和目视检查( 6.3 )在一次试验结束时确定的可作为下一次试验的初始电气试验和目视检查；除非另有规定，否则无需重复这些测试。

1.1 These test methods provide procedures for stressing photovoltaic modules in simulated temperature and humidity environments. Environmental testing is used to simulate aging of module materials on an accelerated basis. 1.2 Three individual environmental test procedures are defined by these test methods: a thermal cycling procedure, a humidity-freeze cycling procedure, and an extended duration damp heat procedure. Electrical biasing is utilized during the thermal cycling procedure to simulate stresses that are known to occur in field-deployed modules. 1.3 These test methods define mounting methods for modules undergoing environmental testing, and specify parameters that must be recorded and reported. 1.4 These test methods do not establish pass or fail levels. The determination of acceptable or unacceptable results is beyond the scope of these test methods. 1.5 Any of the individual environmental tests may be performed singly, or may be combined into a test sequence with other environmental or non-environmental tests, or both. Certain pre-conditioning tests such as annealing or light soaking may also be necessary or desirable as part of such a sequence. The determination of any such sequencing and pre-conditioning is beyond the scope of this test method. 1.6 These test procedures are limited in duration and therefore the results of these tests cannot be used to determine photovoltaic module lifetimes. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 The useful life of photovoltaic modules may depend on their ability to withstand repeated temperature cycling with varying amounts of moisture in the air. These test methods provide procedures for simulating the effects of cyclic temperature and humidity environments. An extended duration damp heat procedure is provided to simulate the effects of long term exposure to high humidity. 4.2 The durations of the individual environmental tests are specified by use of this test method; however, commonly used durations are 50 and 200 thermal cycles, 10 humidity-freeze cycles, and 1000 h of damp heat exposure, as specified by module qualification standards such as IEC 61215 and IEC 61646. Longer durations can also be specified for extended duration module stress testing. 4.3 Mounting— Test modules are mounted so that they are electrically isolated from each other, and in such a manner to allow free air circulation around the front and back surfaces of the modules. 4.4 Current Biasing: 4.4.1 During the thermal cycling procedure, test modules are operated without illumination and with a forward-bias current equal to the maximum power point current at standard reporting conditions (SRC, see Test Methods E1036 ) flowing through the module circuitry. 4.4.2 The current biasing is intended to stress the module interconnections and solder bonds in ways similar to those that are believed to be responsible for fill-factor degradation in field-deployed modules. 4.5 Effects of Test Procedures— Data generated using these test methods may be used to evaluate and compare the effects of simulated environment on test specimens. These test methods require determination of both visible effects and electrical performance effects. 4.5.1 Effects on modules may vary from none to significant changes. Some physical changes in the module may be visible when there are no apparent electrical changes in the module. Similarly, electrical changes may occur with no visible changes in the module. 4.5.2 All conditions of measurement, effects of cycling, and any deviations from this test method must be described in the report so that an assessment of their significance can be made. 4.6 Sequencing— If these test methods are performed as part of a combined sequence with other environmental or non-environmental tests, the results of the final electrical tests ( 6.2 ) and visual inspection ( 6.3 ) determined at the end of one test may be used as the initial electrical tests and visual inspection for the next test; duplication of these tests is not necessary unless so specified.