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The Raman spectroscopy analysis of electrically aged polyethylene

The Raman spectroscopy analysis of electrically aged polyethylene
The Raman spectroscopy analysis of electrically aged polyethylene
The electrical properties of polymeric insulation deteriorate in service, when subjected to electrical stresses over a period of years. Possible chemical changes in low-density polyethylene (LDPE) subjected to electric stresses at power frequency have therefore been investigated, using Raman microprobe spectroscopy. Although no significant specific chemical changes were detected when samples were subjected to high stresses for short periods of time, a clear increase in background fluorescence was seen in samples aged for longer periods of time. Raman spectra have also been obtained from around failure sites and compared with those obtained from unaged samples and specimens containing electrical trees.
LDPE, AC ageing, Raman spectrum
2-912328-18-7
732-737
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Vaughan, A. S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Liu, X. Z.
112be48a-b423-45e8-8949-6921af9b9246
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Vaughan, A. S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Liu, X. Z.
112be48a-b423-45e8-8949-6921af9b9246

Chen, G, Vaughan, A. S. and Liu, X. Z. (2003) The Raman spectroscopy analysis of electrically aged polyethylene. In Proceedings of JICABLE'03. pp. 732-737 .

Record type: Conference or Workshop Item (Paper)

Abstract

The electrical properties of polymeric insulation deteriorate in service, when subjected to electrical stresses over a period of years. Possible chemical changes in low-density polyethylene (LDPE) subjected to electric stresses at power frequency have therefore been investigated, using Raman microprobe spectroscopy. Although no significant specific chemical changes were detected when samples were subjected to high stresses for short periods of time, a clear increase in background fluorescence was seen in samples aged for longer periods of time. Raman spectra have also been obtained from around failure sites and compared with those obtained from unaged samples and specimens containing electrical trees.

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More information

Published date: 2003
Venue - Dates: 6th International Conference on Insulated Power Cables (Jicable03),, Versailles-Paris, France, 2003-06-22 - 2003-06-26
Keywords: LDPE, AC ageing, Raman spectrum
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 257973
URI: https://eprints.soton.ac.uk/id/eprint/257973
ISBN: 2-912328-18-7
PURE UUID: e90e9fcd-77d3-46d4-b768-43aa12ba8afc
ORCID for A. S. Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

Catalogue record

Date deposited: 05 Feb 2004
Last modified: 09 May 2019 00:36

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Contributors

Author: G Chen
Author: A. S. Vaughan ORCID iD
Author: X. Z. Liu

University divisions

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