Materials Science and Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation
Journal or Book Title
International Journal of Prognostics and Health Management
Aging mechanisms of two polymeric insulation materials that are used widely in nuclear power plant low-voltage cables; cross-linked polyethylene (XLPE) and ethylene propylene rubber/ethylene propylene diene terpolymer (EPR/EPDM), are reviewed. A summary of various nondestructive methods suitable for evaluation of cable insulation is given. A capacitive sensor capable of making local nondestructive measurements of capacitance and dissipation factor on cable polymers, and potentially suitable for in situ cable monitoring, is introduced. Correlating values of elongation-at-break, indenter modulus, capacitance and dissipation factor measured on a set of 47 aged flame-resistant EPR samples shows a higher correlation between indenter modulus and dissipation factor than between indenter modulus and elongation-at-break.
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Bowler, Nicola and Liu, Shuaishuai, "Aging Mechanisms and Monitoring of Cable Polymers" (2015). Materials Science and Engineering Publications. 258.