Control of Water Tree Length and Density in Cable Insulation Polyethylenes

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Title: Control of Water Tree Length and Density in Cable Insulation Polyethylenes
Author: Hampton, Nigel ; Ciuprina, Florin ; Teissedre, Gisele ; Fillippini, Jean ; Smedberg, Annika ; Campus, Alfred
Abstract: The goal of this paper is to study the influence of the chemical crosslinking of polyethylene on the water tree initiation and propagation in polymer insulation. For this, the water tree resistances of crosslinked and thermoplastic low density polyethylene were compared. Three types of crosslinked polyethylene systems were evaluated: one containing only peroxide and the other two having, beside peroxide, a free retarding additive system. The results were compared with those obtained on their thermoplastic correspondents. The data show that there are differences in both the water tree length and density that can be ascribed to the polyethylene systems. However, only differences in the water tree density could be ascribed to the material form (thermoplastic or crosslinked). The observed results are consistent with differences, on microscopic level, in permittivities and local breakdown strengths.
Description: This paper was presented at the IEEE International Symposium on Electrical Insulation, June 2006. ©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.Digital Object Identifier: 10.1109/ELINSL.2006.1665284
Type: Paper
ISSN: 1089-084X
ISBN: 1-4244-0333-2
Citation: Ciuprina, F.; Teissedre, G.; Filippini, J.; Hampton, N.; Smedberg, A.; Campus, A., "Control of water tree length and density in cable insulation polyethylenes," Electrical Insulation, 2006. Conference Record of the 2006 IEEE International Symposium on , vol., no., pp.170-173, 11-14 June 2006 URL:
Date: 2006-06
Contributor: Georgia Institute of Technology. National Electric Energy Testing, Research and Applications Center
Borealis AB
Universitatea Politehnică București
Laboratoire d'electrostatique et matériaux diélectriques de Grenoble
Publisher: Georgia Institute of Technology
Subject: XLPE insulation
Cable insulation

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