Calculate the conductor surface electric field strength in \(\mathrm{kVrms} / \mathrm{cm}\) for the single-phase line in Problem 4.32 when the line is operating at \(20 \mathrm{kV}\). Also calculate the ground-level electric field strength in \(\mathrm{kVrms} / \mathrm{m}\) directly under one conductor. Assume a line height of \(10 \mathrm{~m}\).

Problem 4.32

Calculate the capacitance-to-neutral in \(\mathrm{F} / \mathrm{m}\) and the admittance-to-neutral in S/km for the single-phase line in Problem 4.8. Neglect the effect of the earth plane.