Ageing Deterioration of Hi gh-Density Polyethylene Cable Spacer under Salt Water Dip Wheel Test

This paper presents the experimental results of highdensity polyethylene cable spacers for 22 kV distribution systems under salt water dip wheel test based on IEC 62217. The strength of anti-tracking and anti-erosion of cable spacer surface was studied in this study. During the test, dry band arc and corona discharge were observed on cable spacer surface. After 30,000 cycles of salt water dip wheel test, obviously surface erosion and tracking were observed especially on the ground end. Chemical analysis results by fourier transforms infrared spectroscopy showed chemical changed from oxidation and carbonization reaction on tested cable spacer. Increasing of C=O and C=C bonds confirmed occurrence of these reactions. Keywords—Cable spacer, HDPE, ageing of cable spacer, salt water dip wheel test.

[1]  S. Pitroda,et al.  ARTIFICIAL POLLUTION TEST ON HIGH VOLTAGE INSULATORS TO BE USED ON AC SYSTEMS , 2013 .

[2]  F. Espino-cortes,et al.  Three dimensional electric field analysis in spacer cable systems , 2012, 2012 Annual Report Conference on Electrical Insulation and Dielectric Phenomena.

[3]  I. Ramirez-Vazquez,et al.  Electric-Field Analysis of Spacer Cable Systems for Compact Overhead Distribution Lines , 2012, IEEE Transactions on Power Delivery.

[4]  B. Marungsri,et al.  Ageing Deterioration of Silicone Rubber Polymer Insulator under Salt Water Dip Wheel Test , 2011 .

[5]  Boonchai Techaumnat,et al.  Numerical analysis of electric field at the contact point between a spacer aerial cable and a spacer , 2011, Proceedings of the 2011 International Conference on Electrical Engineering and Informatics.

[6]  P. Vassiliou,et al.  The effect of accelerated UV-ageing on the dielectric properties of PVC, PTFE and HDPE , 2010, 2010 10th IEEE International Conference on Solid Dielectrics.

[7]  G. Burani,et al.  Evaluation of distribution line spacers located near the coast , 2008 .

[8]  J.D. Bouford,et al.  Spacer cable reduces tree caused customer interruptions , 2008, 2008 IEEE/PES Transmission and Distribution Conference and Exposition.

[9]  R. C. Berredo,et al.  New Technologies, Standards, and Maintenance Methods in Spacer Cable Systems , 2002, IEEE Power Engineering Review.

[10]  F. Nishimura,et al.  Spacer cable and ABC distribution lines. Long-term analysis , 1996, Proceedings of 1996 Transmission and Distribution Conference and Exposition.

[11]  A. Davies,et al.  Electrical ageing effects in polyethylene , 1988 .

[12]  R. Harrold,et al.  On predicting the life of polyethylene spacer-cable eroded by surface discharges in wet weather , 1976, IEEE Transactions on Power Apparatus and Systems.