Cable terminal tower lead wire hardening method

• Main Authors: LIU YANPING, HE YINGJING, DING XIANG, XU SHIZE, BIAN RONG, DING XIAOYU, MA XIAOBO
• Format: Patent
• Language: English
• Published: 04.11.2015
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES

The invention discloses a method for hardening cable terminal tower lead wires by utilizing a tubular bus. A conventional lead-up wire is led down by adopting a flexible lead wire of the same type of an overhead line, and multiple down leads are provided and bring inconvenience to the tower climbing operation; and a connection method of leading the flexible lead wire to a cross arm is adopted so that the situations that the electrical distance from the lead wire to the cross arm and strain insulator strings is insufficient occur repeatedly during field construction. The cable terminal tower lead wire hardening method adopts the tubular bus matched with current-carrying capacity of the lead wire, the tubular bus is arranged along a tower body, and the tubular bus is supported by adopting supporting insulators between the tubular bus and the tower; when the tower body is connected to a cable terminal and a lead wire end, the electrical distance is controlled based on rigidity of the tubular bus, and vibration and offset transmitted by the lead wire and the strain insulator strings are absorbed by connecting the flexible lead wire onto the cable terminal and lead wire strain wire clamps. The method for hardening the cable terminal tower lead wires by utilizing the tubular bus is adopted by the invention, and the phenomenon that the electrical distance is insufficient since the connection layout of the flexible lead wire is not in place can be avoided more effectively.