Development and Application of Superhydrophobic Outdoor Insulation: A Review

Refat Ghunem, Edward Cherney, Masoud Farzaneh, Gelareh Momen, Hazlee Azil Illias, Vidyadhar Peesapati, Gustavo Arturo Mier Malagón, Fanghui Yin

Research output: Contribution to journalReview articlepeer-review


The aim of this article is to present a review of the development and application of superhydrophobic insulation for outdoor high-voltage applications. The methods of preparing insulation exhibiting superhydrophobic properties to mitigate the pollution problem under high voltages in the outdoors are explored. In addition, the existing evaluation techniques at the material development stage are reviewed and potential new modifications are discussed. The self-cleaning and anti-icing properties, the electrical performance, and prospects of superhydrophobic insulators are also addressed. Although superhydrophobic insulators may show promising behavior in small-scale laboratory conditions that do not use electrical stress, the effect of surface micro–nano structure responsible for the superhydrophobicity on the performance under the actual outdoor and weathering conditions under voltage remains to be fully understood and verified. Therefore, there is a need to verify the feasibility of superhydrophobic insulators for outdoor high-voltage applications with a solid evaluation protocol, while using material screening methods in the laboratory, and with reference to field experience.
Original languageEnglish
Pages (from-to)1392-1399
Number of pages8
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Issue number4
Early online date27 Jun 2022
Publication statusPublished - 1 Aug 2022


  • Anti-icing
  • hydrophobicity
  • outdoor insulators
  • pollution performance
  • self-cleaning
  • superhydrophobicity


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