V. CONCLUSIONS
In this paper, lightning performance of six
transmission lines in southern China is analyzed with the
help of LPTL. The simulating method is based on the
method recommended by IEEE standard, considering the
geographical environment and structure of each tower.
According to the simulating results, two conclusions can
be obtained. One is that SFFOR of the entire line is larger
than BFR, the other is that lightning performance of each
tower differs.
The simulation results agree well with operation
experience. It indicates that the IEEE method considering
practical situation is available to the lightning
performance assessment of 500kV transmission lines in
southern China.