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Title: USING CONDITION MONITORING TO PREDICT REMAINING LIFE OF ELECTRIC CABLES.

Abstract

Electric cables are passive components used extensively throughout nuclear power stations to perform numerous safety and non-safety functions. It is known that the polymers commonly used to insulate the conductors on these cables can degrade with time; the rate of degradation being dependent on the severity of the conditions in which the cables operate. Cables do not receive routine maintenance and, since it can be very costly, they are not replaced on a regular basis. Therefore, to ensure their continued functional performance, it would be beneficial if condition monitoring techniques could be used to estimate the remaining useful life of these components. A great deal of research has been performed on various condition monitoring techniques for use on electric cables. In a research program sponsored by the U.S. Nuclear Regulatory Commission, several promising techniques were evaluated and found to provide trendable information on the condition of low-voltage electric cables. These techniques may be useful for predicting remaining life if well defined limiting values for the aging properties being measured can be determined. However, each technique has advantages and limitations that must be addressed in order to use it effectively, and the necessary limiting values are not always easy to obtain.more » This paper discusses how condition monitoring measurements can be used to predict the remaining useful life of electric cables. The attributes of an appropriate condition monitoring technique are presented, and the process to be used in estimating the remaining useful life of a cable is discussed along with the difficulties that must be addressed.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (US)
Sponsoring Org.:
NRC/RES/DET/EMMEB (US)
OSTI Identifier:
781133
Report Number(s):
BNL-NUREG-68237; 401001060
R&D Project: W6465; 401001060; TRN: US0102733
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: 20012 ASME PRESSURE VESSELS AND PIPING CONFERENCE, ATLANTA, GA (US), 07/22/2001--07/26/2001; Other Information: PBD: 29 Mar 2001
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 24 POWER TRANSMISSION AND DISTRIBUTION; ELECTRIC CABLES; LIMITING VALUES; MONITORING; NUCLEAR POWER PLANTS; PRESSURE VESSELS; RESEARCH PROGRAMS; SERVICE LIFE; ELECTRICAL INSULATION; DECOMPOSITION

Citation Formats

LOFARO,R., SOO,P., VILLARAN,M., and GROVE,E. USING CONDITION MONITORING TO PREDICT REMAINING LIFE OF ELECTRIC CABLES.. United States: N. p., 2001. Web.
LOFARO,R., SOO,P., VILLARAN,M., & GROVE,E. USING CONDITION MONITORING TO PREDICT REMAINING LIFE OF ELECTRIC CABLES.. United States.
LOFARO,R., SOO,P., VILLARAN,M., and GROVE,E. Thu . "USING CONDITION MONITORING TO PREDICT REMAINING LIFE OF ELECTRIC CABLES.". United States. https://www.osti.gov/servlets/purl/781133.
@article{osti_781133,
title = {USING CONDITION MONITORING TO PREDICT REMAINING LIFE OF ELECTRIC CABLES.},
author = {LOFARO,R. and SOO,P. and VILLARAN,M. and GROVE,E.},
abstractNote = {Electric cables are passive components used extensively throughout nuclear power stations to perform numerous safety and non-safety functions. It is known that the polymers commonly used to insulate the conductors on these cables can degrade with time; the rate of degradation being dependent on the severity of the conditions in which the cables operate. Cables do not receive routine maintenance and, since it can be very costly, they are not replaced on a regular basis. Therefore, to ensure their continued functional performance, it would be beneficial if condition monitoring techniques could be used to estimate the remaining useful life of these components. A great deal of research has been performed on various condition monitoring techniques for use on electric cables. In a research program sponsored by the U.S. Nuclear Regulatory Commission, several promising techniques were evaluated and found to provide trendable information on the condition of low-voltage electric cables. These techniques may be useful for predicting remaining life if well defined limiting values for the aging properties being measured can be determined. However, each technique has advantages and limitations that must be addressed in order to use it effectively, and the necessary limiting values are not always easy to obtain. This paper discusses how condition monitoring measurements can be used to predict the remaining useful life of electric cables. The attributes of an appropriate condition monitoring technique are presented, and the process to be used in estimating the remaining useful life of a cable is discussed along with the difficulties that must be addressed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {3}
}

Conference:
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