Insulation system for cross-arm of electric pole and method for manufacturing insulated cross-arm

摘要

The present invention relates to a bare iron insulating apparatus for a pole and a method for manufacturing an insulating bare iron, comprising: a hollow pipe member; And an insulating tube which is in close contact with at least an outer circumferential surface of the tube member and surrounds the tube member, wherein the insulating tube is made of an insulating shape memory resin, It is possible to reduce the investment cost for prevention of failure as well as stable power supply.