Defect Blog

Monthly Archives: October 2015

Each year, millions of people and thousands of businesses are impacted by underground cable system failures. IMCORP is dedicated to advancing the understanding of how these failures occur and more importantly, how they can be avoided.

Oct 28 2015

PD Activity Identified During Assessment of Aged Utility Cable


Posted in: Utility, Cable

During the reliability assessment of aged underground residential distribution (URD) cable systems at a mid-western electric utility, one particular cable sample was found to exhibit low levels partial discharge (PD) activity. These PD sites were e... Read Article

Oct 27 2015

Low Signal Magnitude (pC) but Serious Cable Defect

By: Ben Lanz and Bill Corrente

Posted in: Workmanship, Wind, Utility, Renewable, Cable

While commissioning new generation project in the multiple defects were identified within the cable system. One particular cable exhibited defects in the dozens of low magnitude partial discharge signals at two times the operating voltage.  Th... Read Article