A detailed field study of lightning stroke effects on distribution lines

Teru Miyazaki*, Shigemitsu Okabe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Field study of lightning stroke effects, particularly the mechanisms that produce distribution line faults, is essential for designing rational lightning protection for distribution lines. The Tokyo Electric Power Company has conducted photographic research and observed voltage and current waveforms due to lightning in actual distribution lines since 1996, obtaining 284 datasets, including 62 for direct hits to the lines. These results permit a comprehensive study of each lightning flash; the photographs show the precise location of the lightning, and the waveforms provide detailed analyses of flashovers in the distribution systems. This paper evaluates typical observed datasets, including surge insulator voltage waveforms. In some cases, the direct lightning strokes did not cause distribution line faults because the power follow current extinguished spontaneously after flashover generation. These results provide a solid basis for examining the mechanisms underlying the production of distribution line faults, and can lead to effective lightning protection practices.

Original languageEnglish
Pages (from-to)352-359
Number of pages8
JournalIEEE Transactions on Power Delivery
Issue number1
Publication statusPublished - 2009 Jan 22
Externally publishedYes


  • Direct lightning stroke
  • Distribution line
  • Flashover
  • Indirect lightning stroke
  • Lightning protection design

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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