A survey of repair practices for nuclear power plant containment metallic pressure boundaries
- Oak Ridge National Lab., TN (United States)
The Nuclear Regulatory Commission has initiated a program at the Oak Ridge National Laboratory to provide assistance in their assessment of the effects of potential degradation on the structural integrity and leaktightness of metal containment vessels and steel liners of concrete containments in nuclear power plants. One of the program objectives is to identify repair practices for restoring metallic containment pressure boundary components that have been damaged or degraded in service. This report presents issues associated with inservice condition assessments and continued service evaluations and identifies the rules and requirements for the repair and replacement of nonconforming containment pressure boundary components by welding or metal removal. Discussion topics include base and welding materials, welding procedure and performance qualifications, inspection techniques, testing methods, acceptance criteria, and documentation requirements necessary for making acceptable repairs and replacements so that the plant can be returned to a safe operating condition.
- Research Organization:
- Nuclear Regulatory Commission, Division of Engineering Technology, Washington, DC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 658309
- Report Number(s):
- NUREG/CR-6615; ORNL/TM-13601; ON: TI98005494; TRN: 98:011256
- Resource Relation:
- Other Information: PBD: May 1998
- Country of Publication:
- United States
- Language:
- English
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