Surface analysis of asymmetrically aged 400 kV silicone rubber composite insulators

Y. Xiong; S. M. Rowland; J. Robertson; R. J. Day

doi:10.1109/TDEI.2008.4543114

Surface analysis of asymmetrically aged 400 kV silicone rubber composite insulators

Y. Xiong, S. M. Rowland, J. Robertson, R. J. Day

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Abstract

Surface analysis of 400 kV silicone rubber composite insulators is presented. These insulators have experienced 15 years of service on a coastal 400 kV transmission line. Inspection of the insulators shows low levels of degradation through cracking and oxidation of the surface. This has been quantified by microscopy, energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The analysis shows non-uniform ageing over each shed and ageing on the south side more advanced than on the north side. It is believed that non-uniform ageing was due to environmental factors including natural UV radiation and prevailing wind direction, and the resultant pattern of growth of organic species. EDX and FTIR were found to be the most useful and effective tools for analysis of these polymeric insulators. © 2008 IEEE.

Original language	English
Article number	4543114
Pages (from-to)	763-770
Number of pages	7
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	15
Issue number	3
DOIs	https://doi.org/10.1109/TDEI.2008.4543114
Publication status	Published - Jun 2008

Keywords

Ageing
Composite
Insulators
Material analysis
NCI
Silicone rubber
Transmission line

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10.1109/TDEI.2008.4543114

POST-PEER-REVIEW-NON-PUBLISHERS.PDFAccepted author manuscript, 1.52 MB

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title = "Surface analysis of asymmetrically aged 400 kV silicone rubber composite insulators",

abstract = "Surface analysis of 400 kV silicone rubber composite insulators is presented. These insulators have experienced 15 years of service on a coastal 400 kV transmission line. Inspection of the insulators shows low levels of degradation through cracking and oxidation of the surface. This has been quantified by microscopy, energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The analysis shows non-uniform ageing over each shed and ageing on the south side more advanced than on the north side. It is believed that non-uniform ageing was due to environmental factors including natural UV radiation and prevailing wind direction, and the resultant pattern of growth of organic species. EDX and FTIR were found to be the most useful and effective tools for analysis of these polymeric insulators. {\textcopyright} 2008 IEEE.",

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TY - JOUR

T1 - Surface analysis of asymmetrically aged 400 kV silicone rubber composite insulators

AU - Xiong, Y.

AU - Rowland, S. M.

AU - Robertson, J.

AU - Day, R. J.

PY - 2008/6

Y1 - 2008/6

N2 - Surface analysis of 400 kV silicone rubber composite insulators is presented. These insulators have experienced 15 years of service on a coastal 400 kV transmission line. Inspection of the insulators shows low levels of degradation through cracking and oxidation of the surface. This has been quantified by microscopy, energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The analysis shows non-uniform ageing over each shed and ageing on the south side more advanced than on the north side. It is believed that non-uniform ageing was due to environmental factors including natural UV radiation and prevailing wind direction, and the resultant pattern of growth of organic species. EDX and FTIR were found to be the most useful and effective tools for analysis of these polymeric insulators. © 2008 IEEE.

AB - Surface analysis of 400 kV silicone rubber composite insulators is presented. These insulators have experienced 15 years of service on a coastal 400 kV transmission line. Inspection of the insulators shows low levels of degradation through cracking and oxidation of the surface. This has been quantified by microscopy, energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The analysis shows non-uniform ageing over each shed and ageing on the south side more advanced than on the north side. It is believed that non-uniform ageing was due to environmental factors including natural UV radiation and prevailing wind direction, and the resultant pattern of growth of organic species. EDX and FTIR were found to be the most useful and effective tools for analysis of these polymeric insulators. © 2008 IEEE.

KW - Ageing

KW - Composite

KW - Insulators

KW - Material analysis

KW - NCI

KW - Silicone rubber

KW - Transmission line

U2 - 10.1109/TDEI.2008.4543114

DO - 10.1109/TDEI.2008.4543114

M3 - Article

SN - 1070-9878

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JO - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

IS - 3

M1 - 4543114

ER -

Surface analysis of asymmetrically aged 400 kV silicone rubber composite insulators

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