Changes of Surface Properties of Silicone Rubber Used for Outdoor Insulators due to Corona Discharge

2002 ◽  
Vol 16 (3) ◽  
pp. 37-46
Keyword(s):  
Corona Discharge ◽  
Surface Properties ◽  
Silicone Rubber ◽  
Outdoor Insulators

Influence of Corona Discharge on CaSO4 Solubility of Silicone Rubber Insulator Surface

2021 ◽  
Vol 69 (1) ◽  
pp. 74-79
Author(s):  
Sihua Wang ◽  
Junjun Wang ◽  
Chen Long ◽  
Zhao Lei
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corona Discharge ◽  
Nitric Acid Solution ◽  
Silicone Rubber ◽  
Calcium Sulfate ◽  
Salt Composition ◽  
Surface Product ◽  
Two Temperatures ◽  
Discharge Test

Some studies have shown that the operating state of silicone rubber insulators is not only affected by surface corona discharge, but also different due to the surface covered with different pollutants, but few studies have linked the two. In this paper, by designing the corona discharge test of silicone rubber insulator, the output of nitric acid from its surface product was calculated, and the concentration of nitric acid under different air humidity was obtained. The solubility test of slightly dissolved salt calcium sulfate in nitric acid solution at 293.15K and 333.15K was designed to obtain the solubility of calcium sulfate at different concentrations of nitric acid at two temperatures. Finally, a quantitative analysis of the solubility of calcium sulfate on the surface of insulator FXBW-10/70 in nitric acid solution shows that the surface contamination of insulator with good hydrophobicity may be completely dissolved by nitric acid solution, but the surface of insulator with loss of hydrophobicity cannot be completely dissolved by nitric acid. This study provides a theoretical basis for the dissolution characteristics of silicon rubber insulator corona discharge on its surface soluble salt composition and provides a new idea for the influence of insulator corona discharge on its electrical properties.

Mechanical and Surface Properties of E-beam Irradiated Polytetrafluoroethylene-Silicone Rubber Composites

2010 ◽  
Vol 18 (6) ◽  
pp. 329-336
Author(s):  
Susan Dadbin ◽  
Yaser Kashcooli ◽  
Masoud Frounchi
Keyword(s):  
Surface Properties ◽  
Silicone Rubber ◽  
Rubber Composites

Influence of Relative Humidity on AC Corona Discharge from Algae Attached on the Silicone Rubber

2009 ◽  
Vol 129 (9) ◽  
pp. 645-650
Author(s):  
Daisuke Sato ◽  
Yoshiaki Hara ◽  
Morihide Kokufu ◽  
Yoshio Higashiyama
Keyword(s):  
Relative Humidity ◽  
Corona Discharge ◽  
Silicone Rubber
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