JSEMAT  Vol.4 No.5 , August 2014
On the Use of Laser Ablation for Cleaning High Voltage Ceramic Insulators
Abstract: High voltage lines are one of the main ways for carrying electric energy. To do so high voltage insulators are needed to insulate these lines from the supporting towers. Glass, ceramic and polymer insulators are widely used. Generally high voltage insulators are exposed to weather where humidity, from rain and moist, together with pollution allows accumulation of unwanted material on the surface of the insulator. Cleaning procedures are then needed to remove such material and avoid short-circuiting. The most commonly used cleaning methods are hand cleaning using chemicals that need turning off the main and water jet, which allows keeping the line in service. In this work we explore the possibility of using laser ablation for cleaning high voltage ceramic insulators. It is demonstrated that cleaning can be accomplished by a two-step process. First a Q-switched Nd: YAG laser is used to ablate the unwanted material. The second step is to use a free running Nd: YAG laser to restore the surface hydrophobicity of ceramic insulator, which is affected in the first process step.
Cite this paper: Posada, E. , Moreira, L. , Arronte, M. , Ponce, L. and Flores, T. (2014) On the Use of Laser Ablation for Cleaning High Voltage Ceramic Insulators. Journal of Surface Engineered Materials and Advanced Technology, 4, 257-261. doi: 10.4236/jsemat.2014.45029.

[1]   Yushun, Z., Jian, L., Jianlin, H. and Grzybowski, S. (2010) Icing Performances of Super-Hydrophobic PDMS/Nano-Silica Hybrid Coating on Insulators. 2010 International Conference on High Voltage Engineering and Application (ICHVE), 11-14 October 2010, 489-492.

[2]   Cooper, M., Zafiropulos, V., Fotakis, C. and Larson, J. (1993) Laser Cleaning in Conservation: An Introduction. Butterworth Heineman, Oxford.

[3]   Ponce, L.V., Hernandez, M.P., Flores, T., Morejon, D. and Peña, J.L. (2005) Surface Effects in Cu0.64Zn0.36 Alloy Produced by CO2 Laser Treatment. Materials Letters, 59, 3909-3912.

[4]   Ponce, L., Flores, T., Arronte, M., Parfenov, V.A., Koval’chuk, L.V. and Bartoli, L. (2008) Laser Processing of Cactuses of the Opuntia Family. Journal of Optical Technology, 75, 490-494.

[5]   Guide, S. (1992) 1, 92/1. Hydrophobicity Classification Guide.

[6]   Phipps, C., Birkan, M., Bohn, W., Eckel, H.-A., Horisawa, H., Lippert, T., Michaelis, M., Rezunkov, Y., Sasoh, A. and Schall, W. (2010) Review: Laser-Ablation Propulsion. Journal of Propulsion and Power, 26, 609-637.

[7]   Zorba, V., Persano, L., Pisignano, D., Athanassiou, A., Stratakis, E., Cingolani, R., Tzanetakis, P. and Fotakis, C. (2006) Making Silicon Hydrophobic: Wettability Control by Two-Lengthscale Simultaneous Patterning with Femtosecond Laser Irradiation. Nanotechnology, 17, 3234.