Effect of LOCA simulation procedures on cross-linked polyolefin cable's performance
Electrical and mechanical properties of three commercial cross-linked polyolefin (XLPO) materials, typically used as electrical cable insulation, have been monitored during these simulations of nuclear power plant aging and accident stresses. For one XLPO cable accelerated thermal aging is performed, then the samples are irradiated to the combined aging and LOCA total dose. Finally, a steam exposure is applied. For a second and third set of XLPO cables simultaneous applications of elevated temperature and radiation stresses are used to preaccident age specimens. These aging exposures are followed by simultaneous and steam exposures to simulate a LOCA environment. The measurement parameters during these tests included: dc insulation resistance, ac leakage current, ultimate tensile strength, ultimate tensile elongation, percentage dimensional changes, and percentage moisture absorption. Test results for three XLPO materials are presented.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6834373
- Report Number(s):
- NUREG/CR-3588; SAND-83-2406; ON: DE84013527
- Country of Publication:
- United States
- Language:
- English
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ACCIDENTS
AGING
BWR TYPE REACTORS
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
EQUIPMENT
LOSS OF COOLANT
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ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL RADIATION EFFECTS
POLYMERS
POLYOLEFINS
PWR TYPE REACTORS
RADIATION EFFECTS
REACTOR ACCIDENTS
REACTOR SAFETY
REACTORS
SAFETY
STRESSES
TENSILE PROPERTIES
THERMAL STRESSES
WATER COOLED REACTORS
WATER MODERATED REACTORS