Study on optimization of heat-resistant conductor in line capacity expansion

Due to the low transmission capacity margin of overhead conductors ACSR type in existing grid structure, large-scale connection new energy is greatly limited. However, 60% IACS heat-resistant have conductivity and high power loss process. Therefore, 61. 5% aluminum alloy with are developed for line expansion reconstruction. The feasibility stranded conductor analyzed combination example urban transformation. Under condition that call height original tower sufficient, use this can achieve obvious saving effect effectively improve utilization rate been increased. sag bearing do not increase compared line, be increased by at least 1. 4 times using conductor. At same time, because uses clad steel core as reinforcing core, corrosion resistance improved ensure coastal areas or heavily polluted safe operation reliability electric lines.