A. Tool for Calculation
The paper adopts the Lightning Performance
Analyzing System for Transmission line (LPTL)
developed by Huazhong University of Science and
Technology in China. Based on geographic information
platform, the software can complete lightning activity
statistics and lightning flashover rate calculation, which
integrates kinds of the methods and models[17]. The
software runs as a Microsoft Windows application and
features a user-friendly graphics interface as shown in
Figure 6.