Use of similarity analysis to supplement early qualification work

Conference · Fri Jan 01 00:00:00 EST 1988 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:6942918

Salas, P

From 1985 through 1987, the US Nuclear Regulatory Commission (NRC) and the nuclear industry have questioned the technical adequacy of environmental qualification work performed during the early 1980s to satisfy the requirements of IE Bulletin 79-01B and the subsequent 10CFR50.49. A major technical challenge has been that some subcomponents within the equipment items that were qualified have not been properly accounted for and analyzed. An alternative to resolve this issue is to permit the use of similarity analyses to analyze the behavior of the materials in question for all environmental conditions (e.g., radiation, aging, temperature, and pressure). The NRC and industry need to work closely in the future to develop acceptance criteria for similarity based on reasonable assurance of qualification for generic materials. The Nuclear Utility Group on Equipment Qualification has been working to this end. Without such an agreement, the nuclear industry may have to spend valuable resources to requalify or to replace equipment that could be qualified through sound similarity analyses, resources that could be utilized to improve safety in other areas of the plant.

• OSTI ID: 6942918
• Report Number(s): CONF-880422-; TRN: 88-033568
• Journal Information: Trans. Am. Nucl. Soc.; (United States), Vol. 56; Conference: Topical meeting on engineering for nuclear plant operation and maintenance, Myrtle Beach, SC, USA, 17 Apr 1988
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
ENGINEERED SAFETY SYSTEMS
QUALITY ASSURANCE
NUCLEAR POWER PLANTS
AGING
INSPECTION
REGULATIONS
RELIABILITY
SERVICE LIFE
US NRC
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
POWER PLANTS
THERMAL POWER PLANTS
US ORGANIZATIONS
220900* - Nuclear Reactor Technology- Reactor Safety