Abstract

The paper deals with the results of the studies of conductor aerodynamic instability on a 1150 kV commercial UHV line. Conditions of occurrence of severe subspan oscillation and vibration of 8-conductor bundle are discussed. Test results for the bundle with different schemes of spacer installation are given. The efficiency of a new technique, based on the combination of 8-arm spacers and groups of twin spacers which resulted in the control of subspan oscillation and vibration to safe levels, is shown.

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