Title :
An investigation into the temporary loss of hydrophobicity of some polymeric insulators and coatings
Author :
Bhana, D.K. ; Swift, D.A.
Author_Institution :
Dept. of Electr. Eng., Natal Univ., Durban, South Africa
Abstract :
The types of electrical discharge that cause a substantial temporary loss of hydrophobicity for EPDM, PTFE and silicone rubber have been identified; surprisingly, an appreciable gain has also been observed. The time constant of the recovery process has been determined for various commercial insulators and coatings. Possible degradation, enhancement and self-repair mechanisms plus some practical aspects are briefly discussed
Keywords :
Coatings; Dielectrics and electrical insulation; Flashover; Plastic insulation; Pollution; Polymer films; Shape; Surface cleaning; Surface contamination; Surface discharges;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-1307-0
DOI :
10.1109/ICPADM.1994.413997
