Open AccessStudy on aging index of mechanical and electrical properties of high temperature vulcanized silicone rubber
Author(s) -
Chao Zhou,
Ran Jia,
Jiajun Qin,
Hui Liu,
Na Li,
Hao Shen
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/983/1/012023
Subject(s) - vulcanization , silicone rubber , materials science , composite material , tear resistance , brittleness , ultimate tensile strength , composite number , silicone , natural rubber
Composite insulators are affected by various factors in operation. With the increase of operation time, the shed of silicone rubber composite insulators will become hard and brittle. In this paper, it is found that the hardness of long-term silicone rubber shed meets the standard requirements. The tear strength, tensile strength, elongation at break, resistance to electric tracking and corrosion loss decrease significantly after 5-10 years of operation. The decline of silicone content on the micro surface and the escape of inorganic fillers are the reasons for the deterioration of macro performance. Finally, the evaluation system for aging performance of insulators is preliminarily established, according to the aging degree of insulator, operation and maintenance suggestions are proposed.