Monitoring Detects Failing Joint at Critical Facility
Monitoring Detects Failing Joint at Critical Facility
1 Pages0318 10-Year Reassessment Pinpoints Same Installation Defect Only Now Deteriorated This case study describes IMCORP’s findings during the dissection and root cause analysis of a substandard joint removed from a system feeding a critical facility. The IMCORP Factory Grade ® technology targeted seven of fifty-one joints that had substandard partial discharge (PD) performance per the IEEE 404 standard. Due to cost saving measures, only the worst performing joints were repaired while others with substandard performance were left in service. A dissection of the joints removed during repairs indicated multiple cases of an installation error associated with insufficient mastic surrounding the connector. A reassessment ten years later pinpointed significant degradation in one of
