1. Guangxi Power Transmission and Distribution Network Lightning Protection Engineering Technology Research Center, Guangxi University, Nanning 530004, China
2. Guangxi Power Grid Co., Ltd., Nanning 530023, China
3. College of Electrical Engineering, Guangxi University, Nanning 530004, China
4. SPIC Guangxi Electric Power Co., Ltd., Nanning 530004, China
5. School of Physical Science and Technology, Guangxi University, Nanning 530004, China