Title :
Influence of polymer morphology on water treeing
Author :
Raharimalala, V. ; Poggi, Y. ; Filippini, J.C.
Author_Institution :
Lab. d´´Electrostatique et de Materiaux Dielectriques, CNRS, Grenoble, France
fDate :
12/1/1994 12:00:00 AM
Abstract :
The influence of polymer morphology on water tree propagation is studied using water needle laboratory specimens. For six different thermoplastic materials, the growth kinetics of water trees is measured, the water content of individual water trees is evaluated from the water tree opacity and the water tree morphology is examined by optical microscopy. Results are interpreted by considering the mechanical response of the materials to the penetration of water, induced by dynamic forces of electric origin
Keywords :
optical microscopy; organic insulating materials; polymers; power cable insulation; trees (electrical); dynamic forces; growth kinetics; mechanical response; optical microscopy; polymer morphology; thermoplastic materials; water content; water needle laboratory specimens; water penetration; water tree morphology; water tree opacity; water tree propagation; water treeing; Laboratories; Morphology; Needles; Optical materials; Optical microscopy; Plastic insulation; Polymers; Reservoirs; Semiconductor materials; Trees - insulation;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
