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Review of Progress in Quantitative Nondestructive Evaluation

Polymer and Organic Materials

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Capacitive Sensing For Nuclear Power Plant Cable Insulation Assessment, Nicola Bowler, Shuaishuai Liu, Michael I. Byler, Leonard S. Fifield Jan 2016

Capacitive Sensing For Nuclear Power Plant Cable Insulation Assessment, Nicola Bowler, Shuaishuai Liu, Michael I. Byler, Leonard S. Fifield

Review of Progress in Quantitative Nondestructive Evaluation

The ability to evaluate, nondestructively, the material state of insulation polymers widely employed in aged control and power cables has been identified as important In the process of routine safety inspection and safety inspection for license renewal of aging Light Water Reactor Nuclear Power Plants (NPPs) in the United States [1]. The present industry standard is that the insulation polymer breaking strain (or elongation-at-break, EAB) should be no less than 50% of that value measured on the pristine material, for the aged insulation polymer to be fit for service. Measurement of EAB is destructive, the method requires a relatively large ...