Document: NUREG-0800
Document ID: 042bc5c0-5de0-44b4-9599-6c131e20eb7a
Document Type: srp
Title: FUNCTIONAL DESIGN OF CONTROL ROD DRIVE SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070413.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.6
CFR Part: 
CFR Title: 

Content:
nt will damage the reactor coolant pressure boundary or disturb the core or the core's appurtenances such as to impair coolant flow. The postulated reactivity accidents include rod ejection, rod drop, steam line rupture, coolant temperature changes, pressure changes, and cold water addition. 76. The applicant has met the requirements of General Design Criterion 29 by demonstrating a high probability of control rod insertion under anticipated operational occurrences. 8. The BWR applicant has met the requirements of 10 CFR 50.62(c)(3) by demonstrating that the control rod drive system functions in conjunction with an alternate rod insertion system providing the capability for automatic insertion of all rods by an independent and diverse method (from the reactor protection system). In addition, the BWR applicant demonstrates the use of redundant scram air header exhaust valves.72 For design certification reviews, the findings will also summarize, to the extent that the review is not discussed in other safety evaluation report sections, the staff's evaluation of inspections, tests, analyses, and acceptance criteria (ITAAC), including design acceptance criteria (DAC), site interface requirements, and combined license action items that are relevant to this SRP section.73 4.6-11 DRAFT Rev. 2 - April 1996 V. IMPLEMENTATION The following is intended to provide guidance to the applicants and licensees regarding the NRC staff's plans for using this SRP section. This SRP section will be used by the staff when performing safety evaluations of license applications submitted by applicants pursuant to 10 CFR 50 or 10 CFR 52. Except in those 74 cases in which the applicant proposes an acceptable alternative method for complying with the specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of conformance with the Commission's regulations. The provisions of this SRP section apply to reviews of applications docketed