Life Expectancy and Future Performance of SiR and EPDM Nonceramic Insulators Through FTIR Spectroscopy and Analytical Methods

Abstract

In this paper, Nonceramic Insulator (NCI) life expectancy and future performance are evaluated by exposing Silicone Rubber (SiR) and Ethylene Propylene Diene Monomer (EPDM) based insulators to weathering and accelerated aging testing techniques. The tracking wheel test is the aging method selected to assess the NCI insulators’ resistance to tracking and erosion under high pollution. Such aging and degradation process was evaluated utilizing Fourier Transform InfraRed (FTIR) spectroscopy as well as visual inspection testing techniques. The test results were analytically analyzed by employing linear regression statistical method.