Title :
Effect of surface treatment of fillers on deterioration of silicone rubber housing materials in salt fog ageing test
Author :
Marungsri, B. ; Shinokubo, H. ; Matsuoka, R. ; Kumagai, S.
Author_Institution :
Dept. of Electr. Eng., Chubu Univ., Aichi, Japan
Abstract :
Salt fog ageing test is widely conducted for evaluating anti-tracking and/or anti-erosion performance of housing materials for polymer insulators. We have investigated the effect of surface treatment of fillers on the deterioration of silicone rubber housing materials for polymer insulators. Cyclic salt fog ageing test was conducted fundamentally based on the specification given by the CIGRE WG 15-04. High temperature vulcanized silicone rubber rod type specimens having different amount of fillers with and without surface treatment were used in this investigation. After 50 test cycles, erosions were observed on the specimens without surface treatment. The specimens with surface treatment showed lower leakage current and cumulative charge than the specimens without surface treatment. Larger reduction of hydrophobicity can be seen on the specimens without surface treatment compared with the specimens with surface treatment.
Keywords :
ageing; insulation testing; leakage currents; materials testing; polymer insulators; silicone rubber insulators; surface treatment; vulcanisation; antierosion performance; antitracking evaluation; cyclic salt fog ageing test; filler surface treatment; high temperature vulcanized silicone rubber rod; hydrophobicity; leakage current; polymer insulators; silicone rubber housing materials; Aging; Conducting materials; Insulator testing; Leakage current; Materials testing; Plastic insulation; Polymers; Rubber; Surface treatment; Temperature;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193429
