Title :
Aging in silicone rubber used for outdoor insulation
Author :
Gorur, R.S. ; Karady, G.G. ; Jagota, A. ; Shah, M. ; Yates, A.M.
Author_Institution :
Arizona State Univ., Tempe, AZ, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
A hypothesis for aging produced by dry band arcing in silicone rubber material used for outdoor insulation is presented and experimentally proven. Aging is indicated by permanent changes. The analytical techniques used to study the permanent changes are Fourier transform infrared (FTIR) spectroscopy, energy dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), and surface roughness measurement. The authors highlight the fact that there are permanent changes occurring in the material that lead to progressive degradation in the long run, even though there can be a complete recovery of surface hydrophobicity in a short time
Keywords :
Fourier transform spectroscopy; X-ray chemical analysis; X-ray diffraction examination of materials; ageing; arcs (electric); electric breakdown of solids; insulation testing; insulators; rubber; silicones; surface topography measurement; FTIR; Fourier transform infrared spectroscopy; X-ray diffraction; aging; dry band arcing; energy dispersive X-ray analysis; outdoor insulation; silicone rubber; surface hydrophobicity; surface roughness measurement; Aging; Arc discharges; Dispersion; Fourier transforms; Infrared spectra; Insulation; Rough surfaces; Rubber; Spectroscopy; Surface roughness;
Journal_Title :
Power Delivery, IEEE Transactions on
