Assessment of safe design tension with regard to Aeolian vibrations of single overhead conductors

Author

Leblond, A. ; Hardy, C.

Author_Institution

Hydro-Quebec, Que., Canada

fYear

2000

fDate

2000

Firstpage

202

Lastpage

208

Abstract

This paper presents a probabilistic model for predicting Aeolian vibration response of single overhead conductors. Two different approaches are used to assess safe design tensions. One is based on the conductor fatigue endurance limit and the other is based on linear fatigue damage accumulation associated to each vibration cycle which leads to a certain predicted fatigue life of the conductor. Recently, CIGRE Task Force 22.11.04 made a large use of the calculations made with this model in working out its final recommendations of safe design tensions

Keywords

overhead line conductors; overhead line mechanical characteristics; power overhead lines; probability; transmission line theory; vibrations; Aeolian vibrations; CIGRE Task Force 22.11.04; conductor fatigue endurance limit; linear fatigue damage accumulation; predicted fatigue life; probabilistic model; safe design tension assessment; single overhead conductors; vibration cycle; Aluminum; Clamps; Conductors; Costs; Fatigue; History; Predictive models; Protection; Tensile stress; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings. 2000 IEEE ESMO - 2000 IEEE 9th International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6625-5

Type

conf

DOI

10.1109/TDCLLM.2000.882822

Filename

882822