Aging of nuclear power plant safety cables
Results from an extensive aging program on polymeric materials stripped from unused nuclear reactor safety cables are described. Mechanical damage was monitored after room temperature aging in a Co-60 gamma radiation source at various humidities and radiation dose rates ranging from 1.2 Mrad/h to 2 krad/h. For chloroprene, chlorosulfonated polyethylene, and silicone materials, the mechanical degradation was found to depend only on the total integrated radiation dose, implying that radiation dose rate effects are small. On the other hand, strong evidence for radiation dose rate effects were found for an ethylene propylene rubber material and a cross-linked polyolefin material. Humidity effects were determined to be insignificant for all the materials studied.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6085011
- Report Number(s):
- SAND-78-0344-J; ON: TI86006905
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investigation of Inverse Temperature Effects During Thermal-Radiation Aging of Semicrystalline Cable Insulation
Dose Rate Effects in the Aging of Nuclear Cable Insulation Subjected to Gamma Radiation
Related Subjects
360406* -- Materials-- Polymers & Plastics-- Radiation Effects-- (-1987)
AGING
CABLES
DOSE RATES
ELECTRICAL INSULATION
ELECTROMAGNETIC RADIATION
ELONGATION
GAMMA RADIATION
IONIZING RADIATIONS
MECHANICAL PROPERTIES
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PHYSICAL RADIATION EFFECTS
POLYMERS
POWER PLANTS
RADIATION EFFECTS
RADIATIONS
TENSILE PROPERTIES
THERMAL POWER PLANTS