STEEL TOWER RECONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide a steel tower reconstruction method excellent in construction property and economy, capable of assuring electrical stability with no temporary facility or special space required. SOLUTION: The steel tower reconstruction method includes a process in which a one-side aerial wire 21 is energized while the other-side aerial wire 22 is electrically cut and the other-side aerial wire 22 is shifted to the tip side of the other-side existing arm 12 as I-type suspension aerial wire, a process in which the other-side aerial wire 22 is energized while one-side aerial wire 21 is electrically cut and a tower body 30a of a new steel tower 30 and a one-side new arm 31 are built between existing steel towers, a process in which the one-side aerial wire is shifted to the tip side of the one-side new arm as an I-type suspension aerial wire, a process in which the one-side aerial wire is energized while the other-side aerial wire is electrically cut and the other-side new arm 32 is built on the new steel tower, a process in which the other-side aerial wire is shifted to the other-side new arm as a V-type suspension aerial wire through a suspension insulator 13, and a sixth process in which the other-side aerial wire is energized while one-side aerial wire is electrically cut and the one-side aerial wire is stretched as a V-type suspension aerial wire through the suspension insulator. COPYRIGHT: (C)2005,JPO&NCIPI