Dielectric spectroscopy of epoxy/glass composite materials

Ajour, M. N., Dissado, L. A., Fothergill, J. & Norman, P. N. (2002). Dielectric spectroscopy of epoxy/glass composite materials. Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report, pp. 438-441. doi: 10.1109/CEIDP.2002.1048828

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Abstract

Glass fibre reinforced epoxy (GFRE) material is used in pressboard transformers for optical telecommunication systems, typically at voltages between 1 to 2kV. A programme has been set up to follow the electrical ageing of the GFRE through dielectric and space charge (PEA) measurements. Here we report on the characterisation of the GFRE prior to ageing made by means of linear dielectric spectroscopy. Preliminary results for the aged samples show differences in dielectric response that could be related to de-bonding at the epoxy-fibre interfaces observed in some failed samples.

Item Type: Article
Additional Information: © 2002 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Vice-Chancellor's Portfolio
URI: http://openaccess.city.ac.uk/id/eprint/1389

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