Title :
Modified IEC 5000-h Multistress Aging of 28-kV Thermoplastic Elastomeric Insulators
Author :
Sundararajan, Raji ; Olave, Claudia ; Romero, Edwin ; Trepanier, Benoit
Author_Institution :
Electron. & Comput. Eng. Technol. Dept., Arizona State Univ. East, Mesa, AZ
fDate :
4/1/2007 12:00:00 AM
Abstract :
The 28-kV, novel, environmental-friendly, thermoplastic elastomeric insulators were tested under slightly modified IEC 1109 5000-h (Annex C) conditions for their long-term performance. The modifications were made to more closely represent the actual service environment than the conditions used in the IEC. Various stresses applied include UV-A radiation, heat, rain, clear mist and salt fog, in addition to electrical. After 5000-h aging, there was discoloration, loss of hydrophobicity, and a loss of hydrocarbon bonds. Overall, the insulators looked intact despite the molecular and microstructural changes
Keywords :
ageing; elastomers; insulators; 28 kV; IEC 1190 5000-h multistress aging; UV-A radiation; hydrocarbon bond loss; hydrophobicity; molecular-microstructural change; salt fog; thermoplastic elastomeric insulators; Aging; Contamination; Electric resistance; IEC standards; Plastic insulation; Polymers; Rain; Scanning electron microscopy; Thermal resistance; Thermal stresses; Accelerated aging; Fourier transform infrared spectroscopy (FTIR); equivalent salt deposit density (ESDD); hydrophobicity; multistress; scanning electron microscopy (SEM); thermoplastic elastomeric (TPE); thermoplastic elastomeric insulators;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2007.893184
