Aged ACSR conductors. II. Prediction of remaining life

Author

Havard, D.G. ; Bissada, M.K. ; Fajardo, C.G. ; Horrocks, D.J. ; Meale, J.R. ; Motlis, J. ; Tabatabai, M. ; Yoshiki-Gravelsins, K.S.

Author_Institution

Ontario Hydro, Toronto, Ont., Canada

fYear

1991

fDate

22-27 Sep 1991

Firstpage

849

Lastpage

856

Abstract

For Pt.I, see ibid., pp.835-841 (1991). In Pt.I, methods of testing to determine the overall condition of Ontario Hydro´s overhead conductors were described. The analysis of the test results relative to estimated end-of-life values is presented. The remaining useful life of conductors can be estimated from the curves of progressive degradation. Air pollution studies have led to an environmental corrosion index, which has been correlated with remaining life based on the torsional ductility of steel core wires. This had been used to map expected conductor life across the province. The average service life is found to vary between 67 and 77 years depending on the local contamination level

Keywords

ageing; aluminium; conductors (electric); life testing; steel; Ontario Hydro; ageing; air pollution; aluminium conductor steel reinforced conductors; average service life; end-of-life values; environmental corrosion index; expected conductor life; progressive degradation; test results; torsional ductility; Aging; Air pollution; Conductors; Contamination; Corrosion; Degradation; Life estimation; Steel; Testing; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1991., Proceedings of the 1991 IEEE Power Engineering Society

Conference_Location

Dallas, TX

Print_ISBN

0-7803-0219-2

Type

conf

DOI

10.1109/TDC.1991.169603

Filename

169603