NDLI: Electric Performance of Interfaces in Outdoor Insulation Systems

Content Provider	IEEE Xplore Digital Library
Author	Andersson, J. Hillborg, H. Gubanski, S.M.
Copyright Year	2008
Description	Author affiliation: Dept. of Mater. & Manuf. Technol., Chalmers Univ. of Technol., Goteborg (Andersson, J.; Gubanski, S.M.) \|\| Corp. Res., ABB AB, Vasteras (Hillborg, H.)
Abstract	Insufficient long term reliability of internal interfaces in polymeric outdoor insulators is considered as a potentially critical factor in the performance of modern outdoor insulation systems. In this study, aiming to elucidate this question, test objects composed of silicone rubber layers moulded onto plates of epoxy resin were tested. The epoxy substrate was incompletely covered by a bonding primer and therefore a chemically unbounded interface was formed. A thin wire electrode was inserted into the unbounded interface for ageing it by partial discharges. The samples were tested in a humid environment. In addition, one set of samples was also boiled for 100 h in deionised water. Changes of adhesion imposed by this treatment were analysed with a modified peel-test. No significant reduction of the interfacial mechanical strength could be revealed, although microscopic inspections and IR analyses of the interfaces involved identified evidences of interfacial degradation. The boiling and subsequent testing in high humidity yielded also a higher dissipation factor of the tested objects.
Starting Page	216
Ending Page	219
File Size	6574616
Page Count	4
File Format	PDF
ISBN	9781424425488
DOI	10.1109/CEIDP.2008.4772826
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectrics and electrical insulation Testing Plastic insulation Polymers Rubber Epoxy resins Bonding Chemicals Wire Electrodes
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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