Dielectric Spectroscopy on Thermally Aged, Intact Poly-vinyl Chloride/Ethylene Propylene Rubber (PVC/EPR) Multipolar Cables

Conference · Wed Oct 25 00:00:00 EDT 2017

DOI:https://doi.org/10.1109/CEIDP.2017.8257522· OSTI ID:1511594

Imperatore, Mario V. ^[1]; Fifield, Leonard S.  ^[2]; Fabiani, Davide ^[1]; Bowler, Nicola ^[3]

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1. Universita di Bologna
2. BATTELLE (PACIFIC NW LAB)
3. Iowa State University

As a contribution to condition monitoring diagnostics on low voltage cables used in nuclear power plants, this work shows that broadband dielectric spectroscopy can be an effective technique to assess aging state of these cables. Broadband dielectric spectroscopy has been performed on three-conductor (tri-core) cables, insulated by EPR with PVC jacket. The main challenge has been to perform the measurement on the intact cables, by means of a custom-built connector, conceiving a non-destructive and non-intrusive technique. Results show that capacitance and dissipation factor can provide information about the aging state of the cable, without the need to destroy the sample in the measurement process.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1511594
• Report Number(s): PNNL-SA-127283
• Resource Relation: Conference: IEEE Conference on Electrical Insulation & Dielectric Phenomena (CEIDP 2017), October 22-25, 2017, Fort Worth, TX
• Country of Publication: United States
• Language: English

Related Subjects

dielectric spectroscopy
nondestructive evaluation
PVC
EPR
condition monitoring diagnostics