Insulation coordination for 6.6-kV power distribution insulators against lightning surge

Tomoyuki Sato, Hideki Honda, Shigeru Yokoyama, Satoshi Matsumoto

Research output: Contribution to journalArticle

6 Citations (Scopus)


To achieve higher power supply reliability, it is important to reduce lightning outages. In addition, the cost-benefit of lightning protection methods should be good. Many factors including the causes of lightning surge, the topology and insulation level of the power distribution lines should be considered to establish efficient lightning protection methods for power distribution lines. Furthermore, it is necessary to clarify the flashover characteristics of 6.6-kV power distribution insulators and examine the insulation coordination throughout the power distribution system. This study experimentally clarifies the flashover characteristics of 6.6-kV power distribution insulators currently used by considering polarity differences and pollution conditions.

Original languageEnglish
JournalIEEJ Transactions on Power and Energy
Issue number9
Publication statusPublished - 2012



  • Flashover
  • Insulation coordination
  • Insulator
  • Lightning surge
  • Power distribution line

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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