Evaluation of the onset of space charge and electroluminescence as a marker for cross linked polyethylene ageing

Seeley, A., Fothergill, J., Dissado, L. A., Stevens, G. C., Montanari, G. C. & Laurent, C. (2001). Evaluation of the onset of space charge and electroluminescence as a marker for cross linked polyethylene ageing. Paper presented at the 4th International Conference on Electric Charges in Non Conductive Materials, 2 - 6 July 2001.

[img]
Preview
PDF
Download (231kB) | Preview

Abstract

The aim of the “ARTEMIS” project is to investigate the ageing mechanisms for cross-linked polyethylene under thermo-electrical stress and to identify ageing markers, which can be used to carry out diagnostic procedures. A carefully selected set of techniques which can give cross-correlated information on space charge phenomenology and material degradation were used to investigate specimens peeled from reference and aged cables. The paper shows that ageing induces a change in the density and depth of trapping levels, and an increase in the number and size of mesovoids. Interpretation of these results is discussed in terms of physico-chemical modifications, which can affect trap distribution and microstructure.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Vice-Chancellor's Portfolio
URI: http://openaccess.city.ac.uk/id/eprint/1354

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics