Document: NUREG-0800
Document ID: a4f5c92f-1c1f-4a9c-b4d4-cb2fcc282cae
Document Type: srp
Title: PUMP FLYWHEEL INTEGRITY (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340666.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.1.1
CFR Part: 
CFR Title: 

Content:
l stress intensity factor is based on fracture mechanics testing, while the use of the reference temperature approach is based on the stated normal operating temperature of the flywheel and the actual reference nil-ductility transition temperature of the materials, if an operating license review, or as specified, if a construction permit review. 3. Preservice Inspection The preservice inspection program, including finish machining, and ultrasonic and surface inspections described by the applicant is reviewed and compared with the requirlements of subsection II.3 of this SRP section. The extent to which the ultrasonic inspections proposed and the acceptance criteria in the SAR agree with Code Section III, NB-2530 for plate materials or NB-2540 for forgings, are reviewed. 4. Flywheel Design The design and stress analysis procedures used for the flywheel are reviewed, including the following areas: a. Load combinations at normal operating speed and allowable stresses. b. Design overspeed and basis for selection of design overspeed. c. Load combinations or design overspeed and allowable stresses. d. Shaft and bearing load combinations. The information given in the SAR is compared and evaluated against subsection 11.4 of this SRP section. 5. Overspeed Test The applicant should confirm-that an overspeed test will be run in compliance with subsection 11.5 of this SRP section. 6. Inservice Inspection The inservice inspection program described by the applicant in the plant technical specifications, including areas to be inspected, methods of inspection, frequency of inspection, and acceptance criteria, is reviewed and compared with the requirements of subsection II.6 of this SRP section. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided in accordance with the requirements of this SRP section, and that his evaluation 5.4.1.1-6 Rev. 1 - July 1981 supports conclusions of the following type, to be included in the staff's safety