Hydrophobicity distribution analysis of DC composite insulators

Zhaoxiang, Yang; Jia, Zhidong; Chen, Can; Zhang, Xuedong; Liu, Ling; Zhu, Ruigang; Xie, Qun

doi:10.1109/eic.2014.6869431

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Silicone rubber is a new polymer material well known for its good properties such as high and low temperature resistance, ageing resistance and good insulation performances, hence it is widely used in many fields, especially in power system insulation devices [11]. Silicone rubber, when used as the composite insulator sheath, needs to have good hydrophobic surfaces since the hydrophobicity plays an important role in anti-icing and pollution flashover resistance [12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Performance Investigation on Different Designs of Superhydrophobic Surface Texture for Composite Insulator

Zhao

et al. 2019

Materials

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To investigate the superhydrophobic properties of different surface textures, nine designs of textures with micro-nanostructures were produced successfully using the laser engraving technique on the surfaces of composite insulator umbrella skirt samples made of silicon rubber. The optimal parameters of the texture designs to give rise to the best hydrophobicity were determined. The surface morphology, abrasion resistance, corrosion resistance, self-cleaning and antifouling property of the different textured surfaces as well as water droplets rolling on the textured surfaces were studied experimentally using a contact angle meter, scanning electron microscope, three-dimensional topography meter and high-speed camera system. It was found that the diamond column design with optimal parameters has the best superhydrophobicity and overall performance. The most remarkable advantage of the optimal diamond column design is its robustness and long-term superhydrophobicity after repeated de-icing in harsh conditions. The reported work is an important step towards achieving superhydrophobic surface without coating for outdoor composite insulator in practical applications.

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Section: Introductionmentioning

confidence: 99%

Performance Investigation on Different Designs of Superhydrophobic Surface Texture for Composite Insulator

Zhao

et al. 2019

Materials

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show abstract

“…According to hydrophobicity tests performed on insulators currently in operation, the hydrophobicity of composite insulators has a U-shape distribution, with the hydrophobicity at the ends weaker than that in the middle part [15,16]. It is well known that the electric field along a string is non-uniform.…”

Section: Introductionmentioning

confidence: 99%