Title :
Water tree inception-experimental support for a mechanical/chemical/electrical theory
Author :
Eccles, A. ; Dissado, L.A. ; Fothergill, J.C. ; Houlgreave, J.A.
Author_Institution :
Leicester Univ., UK
Abstract :
The presence of water treeing degradation has been observed in most polymeric materials used as insulation in power cables. In this paper, a composite theory is proposed that describes a possible mechanism for tree inception and growth. As described here the theory relates to vented trees but it is reasonable to assume that a similar mechanism will be applicable to bow-tie trees. The theory seems to correlate well with existing data mainly concerning tree growth. New experimental data is presented which supports this theory
Keywords :
cable insulation; electric breakdown of solids; organic insulating materials; power cables; bow-tie trees; composite theory; insulation; polymeric materials; power cables; tree inception; vented trees; water treeing degradation;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 1992., Sixth International Conference on
Conference_Location :
Manchester
Print_ISBN :
0-85296-551-6
