Title :
Oxidation and thermal resistance of HMW-PE and XLPE HV
Author :
Crine, J.-P. ; Haridoss, S. ; Cole, K.C. ; Bulinski, A.T. ; Densley, R.J. ; Bamji, S.S.
Author_Institution :
Inst. de Recherche d´´Hydro-Quebec, Varennes, Que., Canada
Abstract :
The thermal oxidation of the insulation of several unaged and aged transmission and distribution cables has been measured by Fourier transform infrared (FTIR) spectroscopy. It is shown that all cables, even unaged ones, contain traces of oxidation which increases with aging, especially near the conductor shield. The antioxidant content has been investigated by FTIR and ultraviolet spectroscopy and sulfur content measurements. It is shown that the amount of residual antioxidant can be related to the oxidation induction time as measured by differential scanning calorimetry at 200 degrees C in oxygen. The influence of various parameters on cable thermal resistance is discussed.<>
Keywords :
ageing; cable insulation; insulation testing; organic insulating materials; Fourier transform infrared; conductor shield; differential scanning calorimetry; insulation; residual antioxidant; spectroscopy; thermal oxidation; thermal resistance; ultraviolet spectroscopy; Aging; Cable insulation; Conductors; Electrical resistance measurement; Fourier transforms; Infrared spectra; Oxidation; Spectroscopy; Thermal resistance; Time measurement;
Conference_Titel :
Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on
Conference_Location :
Cambridge, MA, USA
DOI :
10.1109/ELINSL.1988.13909
