Document: NUREG-0800
Document ID: c543c347-16c6-4d28-9086-792635d04c4a
Document Type: srp
Title: CONTROL ROD DRIVE SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340634.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.4
CFR Part: 
CFR Title: 

Content:
the applicant selects an experimental testing option in lieu of estab- lishing a set of stress and deformation allowables, a detailed description of the testing program must be provided for review. In the preliminary safety analysis report (PSAR), the load combinations, design stress limits and allowable deformations criteria should be provided for review. In the final safety analysis report (FSAR), the actual design should be compared with the design criteria and limits to demonstrate that the criteria and limits have not been exceeded. Loadings imposed during normal plant operation and startup and shutdown transients include but are not limited to pressure, deadweight, tempera- ture effects, and anticipated operational occurrences. Loadings associated with specific seismic and other dynamic events are then combined with the above plant-type loads. For BWRs only, the CR0S is reviewed to verify that the system is capable of withstanding adverse 3.9.4-2 Rev. 2 - April 1984 dynamic loads such as water hammer. The response to each set of combined loads has a selected stress or deformation limit. The selection of a specific limit is influenced by the probability of the postulated event occurring and the need to assure operation during and after the event. 4. The portion of the SAR is reviewed that describes plans for the conduct of an operability assurance program or that references previous test programs or standard industry procedures for similar apparatus. For example, the life cycle test program for the CRDS is reviewed. The operability assur- ance program -is reviewed to ascertain coverage of the following: a. Life cycle test program. b. Proper service environment imposed during test, including appropriate anticipated normal operational occurrences, seismic, and postulated accident conditions. c. Mechanism functional tests. d. Program results. In addition, the MEB will coordinate other branches' evaluations that interface with the overall review of the CR0S as