The Influence of Silicon Rubber Cover to the Ampacity and Sagging of Overheadline

Abstract

An effort to reduce the overhead line outage due to encroachments like trees and kites, by covering the conductor with silicone rubber has been proposed. Models have been developed to simulate the ampacity and the sagging of conductor before and after the addition of silicon rubber cover. The model represents a 240mm2 ACSR (Aluminum Conductor Steel-Reinforce)-Hawk conductor with thicknesses of the cover of 4, 5, and 6 mm. As a result, the addition of silicon rubber can reduce the ampacity up to 17%, and the height of the sagging increases by 38%.