DocumentCode
3779515
Title
Treeing in polyethylene as a prelude to breakdown
Author
D. W. Kitchin;O. S. Pratt
Author_Institution
Simplex Wire and Cable Company, Cambridge, Mass.
fYear
1957
Firstpage
43
Lastpage
45
Abstract
This paper deals with latent damage that consists of “trees” formed by partial breakdown of defective or locally overstressed regions. This cannot be observed in opaque insulation like rubber, but the discovery of trees in polyethylene stimulated interest in this phase of study. Figure 1 shows trees in various stages in contaminated PE after 21 months at 68 volts per mil AC. They start from the conductor, from the outer surface, and from particles and fibres within the PE.
Keywords
"Electric breakdown","Needles","Conductors","Polyethylene","Rubber","Stress"
Publisher
ieee
Conference_Titel
Electrical Insulation, 1957. annualReport 1957. Conference on
Print_ISBN
978-1-5090-3134-4
Type
conf
DOI
10.1109/EIC.1957.7507287
Filename
7507287
Link To Document