Air Clearances of Fully Composite Pylon

Tohid Jahangiri*, Qian Wang, Filipe Faria da Silva, Claus Leth Bak

*Corresponding author

Research output: Contribution to book/anthology/report/conference proceedingBook chapterResearchpeer-review


This chapter is related to the insulation coordination study to specify required electrical clearances on the fully composite pylon. The deterministic approach of insulation coordination study is described. Statistical behavior and failure risk of insulation along with the effect of statistical withstand voltage and statistical overvoltage on the risk of failure are implied. The insulation coordination procedure to calculate required electrical clearances on the fully composite pylon are presented. The obtained results are compared with the recommended values of standards and subsequently, internal and external air clearances at the tower top and within the mid-span are specified.
Original languageEnglish
Title of host publicationElectrical Design of a 400 kV Composite Tower
Number of pages15
Publication date1 Jan 2020
ISBN (Print)978-3-030-17842-0
ISBN (Electronic)978-3-030-17843-7
Publication statusPublished - 1 Jan 2020
SeriesLecture Notes in Electrical Engineering


  • Air clearance
  • Failure risk of insulation
  • Insulation coordination

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