Evaluation of nondestructive examination requirement changes with updates of Section XI, Division 1 of the ASME Code
Present NRC Regulations require that inservice inspection plans for operating plants be updated at the end of each ten-year inspection interval. These plans must comply with the latest edition and addenda of Division 1 rules of Section XI, ''Rules for Inservice Inspection of Nuclear Power Plant Components,'' of the ASME Boiler and Pressure Vessel Code (ASME Code) that is in effect 12 months prior to the required plan update date. The major objective of this study (Task 17 of FIN A6367) was to summarize benefits of nondestructive examination (NDE) methodology in later ASME Code editions and addenda, and to determine if expeditious implementation of these changes should be recommended. Changes in NDE requirements with updates of the ASME Code were analyzed and several improvements in later editions and addenda are discussed. It is concluded that use of the later ASME Code editions and addenda would enhance examination effectiveness. Thus, early implementation of NDE improvements in later editions and addenda is recommended. A compilation of ASME Code editions and addenda being followed and inservice inspection plan update schedules for operating plants is presented. Steps in implementing changed NDE rules are given and methods for accelerating the implementation schedule are proposed.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6470842
- Report Number(s):
- EGG-SD-6893; ON: TI86004129
- Country of Publication:
- United States
- Language:
- English
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210700 -- Nuclear Power Plants-- Regulation & Licensing
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
42 ENGINEERING
420500 -- Engineering-- Materials Testing
IN-SERVICE INSPECTION
INSPECTION
MATERIALS TESTING
NONDESTRUCTIVE TESTING
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
RECOMMENDATIONS
TESTING
THERMAL POWER PLANTS