Status Report: Correlation of Electrical Cable Failure with Mechanical Degradation (NUREG/CR-3263, SAND83-2622)

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Publication Information

Manuscript Completed: March 1984
Date Published: April 1984

Prepared by:
Otmar Stuetzer
Sandia National Laboratories
Albuquerque, New Mexico 87185
Operated by Sandia Corporation
for the U.S. Department of Energy
Under Contract No. DE-AC04-76DP00789

Prepared for:
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

Under Memorandum of Understanding DOE 40-550-75

NRC FIN A-1051

Availability Notice


An attempt is being made to assess complete electrical failure of signal and low-power cables typically used in nuclear power plant containments and to correlate failure modes with the mechanical deterioration of the elastomeric cable material. Work over the past 24 months, although limited to one cable configuration, has identified creep shortout and insulator cracking, both aggravated by mechanical stresses, as the phenomena most likely to cause electrical breakdown. Comprehensive tests have been run for six months and are continuing. Preliminary conclusions can be drawn and are reported.

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