Surface Roughness Effect on the Hydrophobicity Characteristic of Operating Composite Insulators
- DOI
- 10.2991/eeic-13.2013.77How to use a DOI?
- Keywords
- hydrophobicity; operating composite insulators; surface roughness; static contact angle; HC levels test
- Abstract
Pretreatment needs to be done before measuring the hydrophobicity of the composite insulators. However, the necessity of such pretreatment is questionable for operating composite insulators. Therefore, surface roughness of light pollution level, heavily pollution level, chalking and the impact of surface roughness on hydrophobicity characteristic (HC) was investigated in this paper. The paper does the research on the result indicated the surface roughness is one of main factor about the pretreatment effect on HC level and static contact angle. The pretreatment effect on HC level and static contact angle seemed to be very obvious and the percentage of static contact angle changed up to 15.3%, as the surface roughness was varied. The Ra and RSM of different pollution level shed percentage change up to 130% and 269%. While Ra and RSM of high surface roughness degree reach up to 3.242 m and 400 m, the hydrophobicity on the composite insulators lost permanent. The surface roughness can lead the water drop to two kinds of states transitions and it can make sample static contact Angle changed up to 31% within 10 minutes, which will also cause the different results of two measurement methods. Surface roughness of composite insulators was suggested as the added parameter in hydrophobicity tests.
- Copyright
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Song Wang AU - Tian Yuan AU - Jun Zhou AU - Qian-yu Wang PY - 2013/12 DA - 2013/12 TI - Surface Roughness Effect on the Hydrophobicity Characteristic of Operating Composite Insulators BT - Proceedings of the 3rd International Conference on Electric and Electronics PB - Atlantis Press SP - 327 EP - 332 SN - 1951-6851 UR - https://doi.org/10.2991/eeic-13.2013.77 DO - 10.2991/eeic-13.2013.77 ID - Wang2013/12 ER -