THE STRUCTURAL CHARACTERISTICS OF WATER TREES IN POWER-CABLES AND LABORATORY SPECIMENS

被引:43
作者
MOREAU, E [1 ]
MAYOUX, C [1 ]
LAURENT, C [1 ]
BOUDET, A [1 ]
机构
[1] CTR ELABORAT MAT & ETUD STRUCT,CNRS,LOE,TOULOUSE,FRANCE
来源
IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1993年 / 28卷 / 01期
关键词
D O I
10.1109/14.192240
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The physical structure of water trees grown in power cables and in laboratory specimens made of crosslinked polyethylene are studied and compared. Detailed observations are made by fluorescence microscopy. This technique, used for the first time in this type of research provides images with good contrast and high resolution. It is completed by 3D views acquired by confocal laser scanning microscopy. In both cases the tree structure is a network of continuous submicroscopic branched and zigzag tracks. The previous published observations are critically examined. Moreover, the self-luminescence of water trees and its neighborhood is studied, and is shown to be localized in the tree tracks.
引用
收藏
页码:54 / 64
页数:11
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