DocumentCode
1160668
Title
Threshold voltage for electrical tree inception in underground HV transmission cables
Author
Bamji, S.S. ; Bulinski, A.T. ; Chen, Y. ; Densley, R.J.
Author_Institution
Nat. Res. Council of Canada, Ottawa, Ont., Canada
Volume
27
Issue
2
fYear
1992
fDate
4/1/1992 12:00:00 AM
Firstpage
402
Lastpage
404
Abstract
Experimental evidence is provided to show that irreversible aging which leads to electrical treeing in polymeric insulation such as low-density and crosslinked polyethylene used in HV transmission cables, does not start at local fields between 5 and 20 kV/mm. It is shown that a much higher stress is required for electrical tree inception and that the electroluminescence inception voltage is the threshold voltage at which the polymer starts to degrade
Keywords
electric breakdown of solids; electroluminescence; organic insulating materials; polymers; power cables; underground cables; LDPE; XLPE; aging; electrical tree inception; electrical treeing; electroluminescence inception voltage; polymeric insulation; underground HV transmission cables; Aging; Cable insulation; Dielectrics and electrical insulation; Plastic insulation; Polyethylene; Polymers; Stress; Threshold voltage; Trees - insulation; Underground power cables;
fLanguage
English
Journal_Title
Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
0018-9367
Type
jour
DOI
10.1109/14.135612
Filename
135612
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