Transmission Line SIL

1. What is the Surge Impedance for a transmission line?
2. Assume a transmission line rated at 765kV. X=j0.3310 Ω/km and Y=j4.674E-6 S/km. The line is 300km long and the wavelength is as given in Chapter 5.4

for an overhead transmission line. Calculate the SIL for the line.