편중시공에 의한 ACSR 410mm2 가공송전선 및 직선슬리브의 기계적 및 열적 거동 연구

Abstract

According to previous report, aged sleeves for old transmission lines have variable defects such as biased installed case or corrosion of steel sleeve. These defects can cause serious accidents such as rapid increasing of sag or falling out of overhead conductor from sleeves. Biased installed sleeves have occupied 20 percent among the investigated aged sleeves. This defect must cause local heating of splice connector and limit power transmission capacity. It even inspire falling out of overhead conductor from sleeves. This paper studies thermal properties and mechanical properties for ACSR conductor in case of biased installed sleeve model. The detailed results were presented in the text.