Document: NUREG-0800
Document ID: 60504484-b86d-4048-bba0-59d150675db4
Document Type: srp
Title: TURBINE DISKROTOR  INTEGRITY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070578.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.2.3
CFR Part: 
CFR Title: 

Content:
achining, ultrasonic inspection, surface inspection, visual inspection, and spin testing, is reviewed and compared with the requirements of subsection II.3 of this SRP section. The extent to which the ultrasonic inspections and the acceptance criteria in the SAR agree with ASME Boiler and Pressure Vessel Code, Section III, NB-2530 for plate materials or NB-2540 for forgings, is reviewed. 4. Turbine DiskRotor Design The design and stress analysis procedures used for the low-pressure turbine disks or forged or welded rotors are reviewed including the following areas: 33 a. Load combinations at normal operating speed and allowable stresses. b. Design overspeed and basis for selection of design overspeed. c. Load combinations at design overspeed and allowable stresses. The SAR data are compared and evaluated against subsection II.4 of this SRP section. 5. Inservice Inspection The inservice inspection and maintenance program described by the applicant, 34 including areas to be inspected, methods of inspection, frequency of inspection, and acceptance criteria, is reviewed and compared with the requirements of subsection II.5 of this SRP section. For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.35 IV. EVALUATION FINDINGS The staff concludes that the integrity of the low-pressure turbine diskforged or welded rotor is 36 acceptable and meets the relevant requirements of General Design Criterion 4 of 10 CFR Part 50.