Aging, condition monitoring, and loss-of-coolant accident (LOCA) tests of Class 1E electrical cables

Technical Report · Sat Aug 01 00:00:00 EDT 1992

OSTI ID:7146577

Jacobus, M J ^[1]

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1. Sandia National Labs., Albuquerque, NM (United States)

This report describes the results of aging, condition monitoring, and accident testing of crosslinked polyolefin (XLPO) cables. Three sets of cables were aged for up to 9 months under simultaneous thermal ({approx equal}100{degrees}C) and radiation ({approx equal}0. 10 kGy/hr) conditions. A sequential accident consisting of high dose rate irradiation ({approx equal}6 kGy/hr) and high temperature steam followed the aging. The test results indicate that most properly installed XLPO cables should be able to survive an accident after 60 years for total aging doses up to 400 kGy and for moderate ambient temperatures on the order of 50--55{degrees}C (potentially higher or lower, depending on material specific activation energies). Mechanical measurements (primarily elongation, modulus, and density) were more effective than electrical measurements monitoring age-related degradation.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering; Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USNRC; Nuclear Regulatory Commission, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7146577
• Report Number(s): NUREG/CR-5772-Vol.1; SAND-91-1766/1; ON: TI92040698
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
ELECTRIC CABLES
AGING
MECHANICAL PROPERTIES
TESTING
ELECTRIC CONDUCTIVITY
ELONGATION
HEATING
LOSS OF COOLANT
STEAM
TENSILE PROPERTIES
ACCIDENTS
CABLES
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
PHYSICAL PROPERTIES
REACTOR ACCIDENTS
220900* - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories