Title :
Practical insulation co-ordination of woodpole distribution lines in high-lightning areas
Author :
Geldenhuys, H.J. ; Lagesse, R.B. ; Britten, A.C. ; Sadurski, K. ; van der Merwe, W.C.
Author_Institution :
CSIR, Pretoria, South Africa
Abstract :
The authors discuss the effects of lightning on MV power lines and give empirical formulae for calculating the number of lightning-induced surges. The effects of lightning on aerial bundle conductors are discussed, and some of the first results of a study of this subject are given. The options for insulation designs are discussed, and proposals for practical 300 kV BIL (basic insulation level) structures that have been used by Eskom are considered. Data on the field performance of different designs are presented
Keywords :
distribution networks; 300 kV; Eskom; MV power lines; aerial bundle conductors; basic insulation level; field performance; insulation co-ordination; insulation designs; lightning; lightning-induced surges; woodpole distribution lines; Cable insulation; Conductors; Equations; Flashover; Lightning; Power engineering and energy; Proposals; Substations; Surge protection; Testing;
Conference_Titel :
AFRICON '92 Proceedings., 3rd AFRICON Conference
Conference_Location :
Ezulwini Valley
Print_ISBN :
0-7803-0835-2
DOI :
10.1109/AFRCON.1992.624532
