Title :
Anti-icing performances of super hydrophobic insulator
Author :
Yong Li ; Yuan Wei ; Qian Wang ; Gaolin Wu ; Jin Fu ; Jian Li ; Zhengyong Huang ; Yonglong Yan
Author_Institution :
Electr. Power Res. Inst., Chongqing Electr. Power Co., Chongqing, China
Abstract :
Icing on transmission line threats to the safe operation of power grid. At present widely used coatings including RTV coating have the hydrophobic property whose contact angle is about 110° and cannot have good anti-icing effect. Here super-hydrophobic surface whose contact angle is about 150° and contact angle hysteresis less than 5° is prepared and its anti-icing characteristic is detected. The leakage current test in time-domain and frequency-domain, ultraviolet imaging test and AC icing flashover voltage test are adopted. Results show that compared with RTV coating, the super-hydrophobic surface owns less leakage current, fewer ultraviolet photons and higher AC flashover voltage which shows great application potential of super-hydrophobic surface in external insulation field.
Keywords :
coatings; contact angle; flashover; hydrophobicity; insulators; power transmission lines; AC icing flashover voltage test; RTV coating; antiicing characteristic; antiicing effect; antiicing performances; contact angle; contact angle hysteresis; external insulation field; frequency-domain; hydrophobic property; power grid; super hydrophobic insulator; super-hydrophobic surface; time-domain; transmission line threats; ultraviolet imaging test; ultraviolet photons; Coatings; Flashover; Glass; Insulators; Leakage currents; Photonics; Substrates; RTV; flashover voltage; leakage current; super-hydrophobic surface; ultraviolet image;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2013 IEEE Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CEIDP.2013.6748260