Lightning Surge Analysis is one of major interest for electric utility companies. Particularly, for tall structure as EHV or UHV double-circuit towers, the surge characteristics become more dominant owing to the longer round-trip time of a traveling wave in the tower. In this book, the analysis of surge response have been carried out in the several arrangements. In all cases, the voltage measuring wire is placed at the perpendicular to the current lead wire. Each of the arrangement of the current lead wire affects the measured surge impedance of the vertical conductor and that has been...