Experimental Study on Friction Coefficient of Strands for Large Cross-Section ACSR in Transmission Lines

Abstract According to the structural characteristics of aluminum conductor steel reinforced (ACSR), an experimental system is developed for the contact friction between steel and aluminum strands. The test parameters such as contact force and cross angle between strands are determined by the ACSR structure of JL1/G3A-1250/70-76/7. The curves of frictional force are obtained from the contact friction tests between steel core and aluminum strand, aluminum strand and aluminum strand under different conditions. The friction coefficient of strands under different contact conditions is obtained by statistical analysis, which provides support for further research on contact deformation analysis of strands in ACSR.