INSULATOR SEPARATION METHOD, UTILITY POLE SUSPENSION DEVICE USED IN SAID METHOD, INSULATOR SUPPORT TOOL, TOOL FOR FIXING TO UTILITY POLE, AND HANGING/SUSPENSION TOOL

摘要

Provided are: an insulator separation method with which it is possible to safely separate a plurality of strain insulators arranged at different heights without changing the position of a device used in the operation; a utility pole suspension device used in the method; an insulator support tool; a tool for securing the insulator to a utility pole; and a hanging/suspension tool. In this insulator separation method for removing an unnecessary strain insulator from overhead cables when three three-phase AC power lines are disposed at different heights, first a branch path that includes a wire-tensioning device is formed in parallel with the insulator, and insulator-side tension is alleviated. After the tension applied to the insulator has been alleviated, a connection portion of the insulator is supported by an insulator support tool 150 having an insulator engagement part 154 at the distal end thereof. The connection portion of the insulator is detached in a state in which the insulator is supported by the insulator support tool 150, and a belt 4 for suspending a utility pole suspension device 1 is connected to a central position on a support rod of the insulator support tool 150. The insulator is raised up by the utility pole suspension device 1 at a position higher than that of the utility pole suspension device 1 and detached while supported in an ancillary manner by the insulator support tool 150.