Mechanical and electrical characteristics analysis of the ACSR affected by high temperature

Abstract

Generally, the characteristics of the conductor that was affected by forest fire can be analyzed only when the forest fire is accurately modeled and its effect is identified. Few studies have been conducted with a forest fire model for transmission lines, and no results of the examination of the actual test specimens that were exposed to forest fire have been reported. As the dust characteristics of a forest fire are difficult to analyze in the actual field, an environment that was similar to that in the field was used in this study. Dust was deposited on a wire using an artificial dust experiment device by distance, to test and analyze the temperature and mechanical and electrical characteristics. It seems that this analysis data in this study can be used as the basic data for the database that can be utilized to analyze wires exposed to forest fire flames and dust and to predict the ACSR wire refurnish life.

Influence of Various Biomass Smoldering Flue Gas on Physical Characteristics of High Voltage Transmission Line

“…It is considered that the loss point of 20 % of the rated tensile strength of the wire can be used as the life limit of the wire. Dae-Dong Lee et al [6] tested and analyzed the mechanical and electrical properties of wires after fire by using a self-made artificial dust test device. Sung-Duck Kim et al [7] tested the tensile strength and elongation at break of ACSR conductor (cross-sectional area of 480 mm2) after exposure to artificial flame.…”