Technical basis for environmental qualification of microprocessor-based safety-related equipment in nuclear power plants
- Oak Ridge National Lab., TN (United States)
- Brookhaven National Lab., Upton, NY (United States)
- Sandia National Labs., Albuquerque, NM (United States)
This document presents the results of studies sponsored by the Nuclear Regulatory Commission (NRC) to provide the technical basis for environmental qualification of computer-based safety equipment in nuclear power plants. The studies were conducted by Oak Ridge National Laboratory (ORNL), Sandia National Laboratories (SNL), and Brookhaven National Laboratory (BNL). The studies address the following: (1) adequacy of the present test methods for qualification of digital I and C systems; (2) preferred (i.e., Regulatory Guide-endorsed) standards; (3) recommended stressors to be included in the qualification process during type testing; (4) resolution of need for accelerated aging for equipment to be located in a benign environment; and (5) determination of an appropriate approach for addressing the impact of smoke in digital equipment qualification programs. Significant findings from the studies form the technical basis for a recommended approach to the environmental qualification of microprocessor-based safety-related equipment in nuclear power plants.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (United States). Div. of Systems Technology; Oak Ridge National Lab., TN (United States); Brookhaven National Lab., Upton, NY (United States); Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464; AC02-76CH00016; AC04-94AL85000
- OSTI ID:
- 573313
- Report Number(s):
- NUREG/CR--6479; ORNL/TM--13264; ON: TI98002847
- Country of Publication:
- United States
- Language:
- English
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