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Cable Aging Assessment and Condition Monitoring Using Line Resonance Analysis (LIRA)

[+] Author Affiliations
Gary J. Toman

Electric Power Research Institute, Charlotte, NC

Paolo F. Fantoni

IFE Halden Reactor Project, Halden, Norway

Paper No. ICONE16-48523, pp. 177-186; 10 pages
  • 16th International Conference on Nuclear Engineering
  • Volume 1: Plant Operations, Maintenance, Installations and Life Cycle; Component Reliability and Materials Issues; Advanced Applications of Nuclear Technology; Codes, Standards, Licensing and Regulatory Issues
  • Orlando, Florida, USA, May 11–15, 2008
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4814-0 | eISBN: 0-7918-3820-X
  • Copyright © 2008 by ASME


This paper describes a method for cable system condition monitoring, developed at the IFE Halden Reactor Project, which is based on Frequency Domain Reflectometry. This method resulted in the development of a system called LIRA (LIne Resonance Analysis), which can be used on-line to detect local or global changes in the cable electrical parameters as a consequence of insulation faults or degradation. This paper presents some results achieved in field experiments on signal cables for nuclear installations, in USA and Europe.

Copyright © 2008 by ASME



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