1.1 这些测试方法提供了确定光伏（PV）模块绝缘电阻的程序，即模块内部电气部件与其暴露的导电非载流部件和表面之间的电阻。 1.2 绝缘完整性程序是湿绝缘电阻和湿介电耐压测试程序的组合。 1.3 这些程序与测试方法中描述的绝缘完整性测试程序相似，并参考了这些程序 E1462 不同之处在于，在该过程中，被测试的光伏模块被浸入润湿溶液中。 1.4 这些测试方法不确定合格或不合格等级。 可接受或不可接受结果的确定超出了这些测试方法的范围。 1.5 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 有关具体的预防说明，请参阅第节 6. 。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 4.1 旨在将太阳辐射能安全转换为有用电力的光伏模块或系统的设计必须考虑到用户接触模块或系统电势时发生危险的可能性。此外，绝缘系统为电化学腐蚀提供了屏障，绝缘缺陷可能导致腐蚀和可靠性问题增加。这些测试方法描述了验证模块的设计和构造通过正常安装和使用提供足够电隔离的程序。PV不应在模块上的任何位置- 产生的电势是可接近的，但输出引线明显除外。这种隔离对于提供光伏系统的安全可靠的安装、使用和服务是必要的。 4.2 本测试方法描述了确定模块提供电气危险防护能力的程序。其主要用途是发现绝缘缺陷，这些缺陷可能会对可能接触模块的人员造成危险，尤其是在模块潮湿时。例如，这些缺陷可能是封装中的小孔，这些小孔允许在高湿度一段时间后在模块的外表面上接触到危险电压。 4.3 模块中的绝缘缺陷只有在模块潮湿一段时间后才能检测到。 因此，这些程序规定了绝缘完整性测量前模块必须浸入的最短时间。 4.4 连接到模块上的电气接线盒通常设计为允许冷凝水蒸气中积聚的液态水排出。这种排水路径通常设计成允许水排出，但不允许雨水或喷水装置的冲击水进入。重要的是，在测试过程中，接线盒的所有表面都应通过喷洒彻底润湿，以使这些保护性排水功能能够得到适当的测试。因此，不应堵塞或以其他方式保护排水孔。 4.5 这些程序可能被指定为一系列鉴定测试的一部分，这些测试涉及性能测量和功能要求的演示。 由于绝缘泄漏电阻和绝缘电流泄漏是模块尺寸、环境相对湿度、吸收的水蒸气和其他因素的强大函数，因此这些测试方法的用户有责任规定可接受的最小泄漏电阻。

1.1 These test methods provide procedures to determine the insulation resistance of a photovoltaic (PV) module, i.e. the electrical resistance between the module's internal electrical components and its exposed, electrically conductive, non-current carrying parts and surfaces. 1.2 The insulation integrity procedures are a combination of wet insulation resistance and wet dielectric voltage withstand test procedures. 1.3 These procedures are similar to and reference the insulation integrity test procedures described in Test Methods E1462 , with the difference being that the photovoltaic module under test is immersed in a wetting solution during the procedures. 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. For specific precautionary statements, see Section 6 . 1.7 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 design of a photovoltaic module or system intended to provide safe conversion of the sun's radiant energy into useful electricity must take into consideration the possibility of hazard should the user come into contact with the electrical potential of the module or system. In addition, the insulation system provides a barrier to electrochemical corrosion, and insulation flaws can result in increased corrosion and reliability problems. These test methods describe procedures for verifying that the design and construction of the module provides adequate electrical isolation through normal installation and use. At no location on the module should the PV-generated electrical potential be accessible, with the obvious exception of the output leads. This isolation is necessary to provide for safe and reliable installation, use, and service of the photovoltaic system. 4.2 This test method describes a procedure for determining the ability of the module to provide protection from electrical hazards. Its primary use is to find insulation flaws that could be dangerous to persons who may come into contact with the module, especially when modules are wet. For example, these flaws could be small holes in the encapsulation that allow hazardous voltages to be accessible on the outside surface of a module after a period of high humidity. 4.3 Insulation flaws in a module may only become detectable after the module has been wet for a certain period of time. For this reason, these procedures specify a minimum time a module must be immersed prior to the insulation integrity measurements. 4.4 Electrical junction boxes attached to modules are often designed to allow liquid water, accumulated from condensed water vapor, to drain. Such drain paths are usually designed to permit water to exit, but not to allow impinging water from rain or water sprinklers to enter. It is important that all surfaces of junction boxes be thoroughly wetted by spraying during the tests to enable these protective drain features to be properly tested. Therefore, drain holes should not be plugged or otherwise protected. 4.5 These procedures may be specified as part of a series of qualification tests involving performance measurements and demonstration of functional requirements. Because insulation leakage resistance and insulation current leakage are strong functions of module dimensions, ambient relative humidity, absorbed water vapor, and other factors, it is the responsibility of the user of these test methods to specify the minimum acceptable leakage resistance.