Case of a single-conductor line above an ideal ground
Figure B.2 shows the results of this, using tf =1 μs for curve C, which shows good
match with curve A obtained with the Rusck model. In contrast, the result from
Borghetti et al. [B22] for a realistic distribution of first return stroke front time from
Anderson and Eriksson [B5] shows an order of magnitude difference in the flashover
rate for a line with 150 kV–200 kV CFO.