Abstract

Great importance is attached to the problem of wind-induced vibrations and the danger they present to high-voltage overhead conductors. This report deals with the results of vibration tests performed while the line was in operation. Comparison measurements were made on ACSR conductors with various tensile stresses and conductor types. The influence of bundled conductors, vibration dampers and special arrangements of the suspension point were also investigated. In addition to tlze vibration measurements, the static bending stress at the suspension clamp was also measured. While at the beginning of our tests conductor vibrations were considered the main problem. as they used to be in the past. the measurements obtained made us realize that dynamic and static bending stresses at the suspension clamp have to be considered together with the tensile stress and that the static bending stress at the suspension clamp is an important factor which has so far been ignored.

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