Title :
Statistical properties of the distribution of bow-tie trees in a field aged HV cable
Author :
Hinrichssn, P.F. ; Houdayer, A.J. ; Parpal, J.-L. ; David, E.
Author_Institution :
Lab. de Faisceaux d´´Ions, Montreal Univ., Que., Canada
Abstract :
Recent observations show radial and azimuthal variation of the density and residual stress of the XLPE insulation of HV cables in the vicinity of the inner conductor [1]. In order to investigate possible effects of such stress on bow-tie tree growth, the probability of bow-tie tree occurrence, in a 25 kV distribution cable which had been in service for 18 years, were investigated as a function of a) radial position, b) azimuthal position and c) the wing size
Keywords :
Anisotropic magnetoresistance; Birefringence; Cable insulation; Conductors; Polymers; Power cable insulation; Power cables; Residual stresses; Thermal stresses; Trees - insulation;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-1307-0
DOI :
10.1109/ICPADM.1994.414026
