IEC TR 63227:2020涉及保护光伏电源系统免受雷击和大气浪涌电压的有害影响。如果需要安装雷电和/或浪涌电压保护装置，本文件描述了维持光伏电源系统安全性、功能性和可用性的要求和措施。

IEC TR 63227:2020 deals with the protection of PV power supply systems against detrimental effects of lightning strikes and surge voltages of atmospheric origin. In the event that a lightning and/or surge voltage protection is required to be erected, this document describes requirements and measures for maintaining the safety, functionality, and availability of the PV power supply systems.