Document: NUREG-0800
Document ID: 58e96831-02fa-4fe0-9367-ac30b1da435a
Document Type: srp
Title: CONTROL ROD MISOPERATION (SYSTEM MALFUNCTION OR OPERATOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600415.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.3
CFR Part: 
CFR Title: 

Content:
ERROR) REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of transient and accident analyses for PWRs/BWRs Secondary - None I. AREAS OF REVIEW The specific areas of review are as follows: 1. The types of control rod misoperations that are assumed to occur. For a pressurized water reactor (PWR), this may include one or more rods moving or displaced from normal or allowed control bank positions (such as dropped rods and rods left behind when inserting or withdrawing banks, or single rod withdrawal) and may include the automatic control system attempting to maintain full power. 2. Descriptions of rod position, flux, pressure, and temperature indication systems, and those actions initiated by these systems (e.g., turbine runback, rod withdrawal prohibit, rod block) which can mitigate the effects or prevent the occurrence of various misoperations. 15.4.3-2 Revision 3 - March 2007 3. Descriptions of the sequence of events occurring during each anticipated operational occurrence (AOO), e.g., rod drop followed by automatic return to full power with possible power overshoot, including the effect of important feedback mechanisms and trips. 4. Descriptions of the calculational models used and justification of their validity and adequacy. 5. The input to the calculations, including rod worths, power distributions, and feedback coefficients and evidence of the conservatism of the input. 6. Results of the analyses, including, for each of the AOOs considered, plots of the time history of reactor power, reactor vessel pressure, critical heat flux for the limiting fuel rod, and maximum fuel centerline temperature or linear heat generation rate. 7. COL Action Items and Certification Requirements and Restrictions. For a DC application, the review will also address COL action items and requirements and restrictions (e.g., interface requirements and site parameters). For a COL application referencing a DC, a COL applicant must address COL action items (referred to