In wet environments such as rain and snow, a layer of conductive film is easy to form on the surface of insulating equipment. When it is used for a certain period of time, it is prone to leakage current and even flashover. In order to solve this problem, a self-cleaning coating was prepared by using silicone as raw material and adding modified fluorosilicone rubber and nano filler. The coating can be applied in humid environment to avoid flashover. The infrared, corrosion resistance and self-cleaning tests show that the coating has good water resistance and self-cleaning ability.
The cleaning and repairing effect of the cleaning agent on silicone rubber insulators was studied. The cleaning effect of the material was characterized by salt density and gray density. The hydrophobicity classification was used to study the hydrophobicity recovery of the material. The effects of alumina and homemade organosiloxane contents in the agent on the cleaning and repairing were studied. Through infrared Fourier spectroscopy, the changes of surface functional groups of aging silicone rubber before and after cleaning are studied. It had the best cleaning effect when the alumina content was 3%, and best repairing effect when the homemade organosiloxane content was 2%~3. The dry cleaning effect was carried out as comparison. As a result, dry wiping can only remove the floating dust on the surface, oil stains cannot be removed, and ethanol cleaning can remove some of the dirt, while the hydrophobicity of the insulator surface cannot be restored, which was confirmed that by FTIR. Through the compounding of surfactants and the addition of active substances, the prepared cleaning and repairing agent can infiltrate and emulsify the pollution on the surface of the insulator, effectively remove the pollution on the surface of the insulator, and form a new hydrophobic layer measured as HC1 level on the surface. Through the combination of surfactants and the addition of low surface energy active substances, the cleaning and repairing agent can not only effectively remove the contaminants on the surface of the silicone rubber of the insulator, but also restore the hydrophobicity of the silicone rubber, which can effectively extend the use time of the insulator and reduce the operating cost of the power grid to ensure the safe operation of the power grid.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.