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

Volume

22

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1079

Lastpage

1085

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;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.893184

Filename

4141171