Comparison of location abilities of degradation in a polymer-insulated cable between frequency domain reflectometry and line resonance analysis

2016 ◽  
Author(s):  
Yoshimichi Ohki ◽  
Naoshi Hirai
Keyword(s):  
Frequency Domain ◽  
Resonance Analysis ◽  
Line Resonance ◽  
Frequency Domain Reflectometry

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

2008 ◽  
Author(s):  
Gary J. Toman ◽  
Paolo F. Fantoni
Keyword(s):  
Frequency Domain ◽  
Condition Monitoring ◽  
Field Experiments ◽  
Global Changes ◽  
Electrical Parameters ◽  
Cable System ◽  
Resonance Analysis ◽  
Line Resonance ◽  
Frequency Domain Reflectometry ◽  
On Line

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.

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