Direct lightning and induced lightning will directly destroy photovoltaic modules.1. The solar cell array is installed outside. When there is lightning, the solar cell array will suffer from lightning intrusion. The main measures for lightning protection of solar photovoltaic modules are as follows:(1) the metal support shall be reliably connected with the lightning protection system of the main building.(2) installation of lightning protection and lightning surge protection surge protector in lightning protection box.2. Measures for inductive lightning include:(1) the first layer of solar cell square junction box is used to protect the inductive lightning protection intruded along the DC input line, and the lightning surge protector is installed.(2) the AC output side is connected with the external power grid, and the lightning protection and grounding system of the external power grid plays a role of lightning protection.(3) reliable grounding treatment for all metal shell of distribution room to reduce the range of lightning wave invasion.