Effects of the intensity of precipitation and transverse wind on the corona-induced vibration of HV conductors

The effect of rainfall intensity, electric field strengths, alternating and both polarities of direct voltage as well as the velocity of a transverse wind on the corona-induced vibration of an ACSR conductor were studied. The results showed that the amplitude of the vibration was linearly proportional to the intensity of precipitation up to 24 mm/h. When the intensity of precipitation was higher than 24 mm/h, the amplitude of the vibration remained constant. At a constant intensity of precipitation and a steady vibration, the amplitude of the vibration was generally highest with negative DC fields and lowest with AC fields. Moreover, the corona current contained a relatively constant component and a pulsating component