The Shock Record for 500 and 750 kV Transmission Lines in North America

A survey of all utilities in the United States and Canada which use transmission of electric power at 500 kilovolts and higher voltages reveals (1) No secondary accidents which resulted from induced shocks and (2) A complaint rate of 0.00038(Km-yr)-1 for 500 kV transmission lines and 0.0024(Km-yr)-1 for 750 kV transmission lines.