Fretting wear behaviors of aluminum cable steel reinforced (ACSR) conductors in high-voltage transmission line

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Abstract

This work reports the fretting wear behavior of aluminum cable steel reinforced (ACSR) conductors for use in high-voltage transmission line. Fretting wear tests of Al wires were conducted on a servo-controlled fatigue testing machine with self-made assistant apparatus, and their fretting process characteristics, friction force, wear damage, and wear surface morphology were detailed analyzed. The results show that the running regime of Al wires changes from a gross slip regime to a mixed regime more quickly as increasing contact load. With increasing amplitudes, gross slip regimes are more dominant under contact loads of lower than 30 N. The maximum friction force is relatively smaller in the NaCl solution than in a dry friction environment. The primary wear mechanisms in dry friction environments are abrasive wear and adhesive wear whereas abrasive wear and fatigue damage are dominant in NaCl solution.

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Ma, X., Gao, L., Zhang, J., & Zhang, L. C. (2017). Fretting wear behaviors of aluminum cable steel reinforced (ACSR) conductors in high-voltage transmission line. Metals, 7(9). https://doi.org/10.3390/met7090373

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