Title :
Bow-tie-tree in EPR cables are accelerated water treeing test
Author :
Uematsu, T. ; Iwata, Z. ; Irie, S. ; Fujii, O.
Author_Institution :
Furukawa Electric Co. Ltd., Tokyo, Japan
fDate :
10/1/1992 12:00:00 AM
Abstract :
The authors describe the results of an accelerated water treeing test after a period of approximately one year with two recently manufactured (1988) varieties of commercial EPR (ethylene-propylene rubber) cables, produced by different manufacturers and possessing different cable structures, as well as water impervious XLPE cable for comparison. In the test, bow-tie trees were found in the EPR insulation, which had previously been thought to develop no or few bow-tie trees. The analysis results of bow-tie in EPR cables are described
Keywords :
cable insulation; cable testing; electric breakdown of solids; insulation testing; life testing; organic insulating materials; power cables; XLPE cable; accelerated water treeing test; bow-tie trees; ethylene-propylene rubber; power cables; Absorption; Aging; Cable insulation; Conducting materials; Conductors; Life estimation; Paramagnetic resonance; Testing; Trees - insulation; Underwater cables;
Journal_Title :
Power Delivery, IEEE Transactions on
