DocumentCode
1075218
Title
The Role of Ions in the Mechanism of Water Tree Growth
Author
Given, M.J. ; Fouracre, R.A. ; Crichton, B.H.
Author_Institution
Dielectric Materials Power Engineering Group Department of Electronic and Electrical Engineering University of Strathclde Glasgow, United Kingdom
Issue
2
fYear
1987
fDate
4/1/1987 12:00:00 AM
Firstpage
151
Lastpage
156
Abstract
This paper reports the influence of the negative ions present in the experimental system on water trees grown from a water electrode. These results have been correlated with the physical properties of the ions. A theoretical mechanism is described which explains how the ions may penetrate the polymer, which is in agreement with the experimental results. The authors consider that ionic penetration is the first step in the mechanism of tree growth, causing disruption of the structure of the polymer and increasing the supply of water to the mechanisms of void formation.
Keywords
Dielectric materials; Electrodes; Needles; Polyethylene; Polymers; Power cables; Power engineering; Stress; Thermal degradation; Trees - insulation;
fLanguage
English
Journal_Title
Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
0018-9367
Type
jour
DOI
10.1109/TEI.1987.298874
Filename
4081381
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