Fine structure of defects in polyethylene used for power cable insulation observed by fluorescence microscopy |
| |
Authors: | E Moreau A Boudet C Mayoux C Laurent M Wright |
| |
Affiliation: | (1) CEMES-LOE, CNRS, 29 rue Jeanne Marvig, BP 4347, 31055 Toulouse cedex, France;(2) Laboratoire de Génie Electrique, Université Paul Sabatier, bât. 3R1B3, 118 route de Narbonne, 31062 Toulouse cedex, France;(3) Laboratoire de Pharmacologie et de Toxicologie Fondamentales, 205 route de Narbonne, 31400 Toulouse, France |
| |
Abstract: | The growth of defects called watertrees in cross-linked polyethylene power-insulated cables is poorly understood. We characterized the watertree structure on artificially aged samples. The resolution of the observations was improved by contrasting watertrees with rhodamine, a fluorescent probe and using epifluorescence microscopy. Both video-enhanced microscopy and confocal laser scanning microscopy provided evidence that watertrees are constituted of continuous microchannels. Their diameter is irregular and ranges between 0.6 and 0.2 m, and maybe less. They form a complex three-dimensional array that is accurately depicted. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|