Calculation Software and Safety Analysis for Live Working of ±800kV Qishao Ultra High Voltage Transmission LineZhigang Wang, Hao Guo, Mingming Qiao, Zhaohui Zhen and Peng LiE3S Web Conf., 248 (2021) 02067DOI: https://doi.org/10.1051/e3sconf/202124802067