Document: NUREG-0800
Document ID: 7ed30441-8f7a-44a4-b42a-6bbe8c5bbff4
Document Type: srp
Title: UNCONTROLLED CONTROL ROD ASSEMBLY WITHDRAWAL AT POWER
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070712.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Core Performance Branch (CPB)Reactor Systems Branch (SRXB)1 Secondary - None I. AREAS OF REVIEW The CPBSRXB evaluates the effects and consequences of an uncontrolled control rod assembly 2 withdrawal (a bank for a pressurized water reactor, PWR;and a single rod with current control 3 modes for a boiling water reactor, BWR) at power to assureensure conformance with the 4 5 requirements of General Design Criteria 10, 17, 20, and 25 under this Standard Review Plan 6 (SRP) section. The review under this SRP section covers the description of the causes of the 7 transientanticipated operational occurrence (AOO) and of the transientAOO itself, the initial 8 conditions, the reactor parameters used in the analysis, the analytical methods and computer codes used, and the consequences of the transientsAOOs as compared with the acceptance criteria. The reactivity coefficients and control rod assembly worths involved are reviewed by the CPB under SRP Section 4.3.9 Review Interfaces10 SRXB also performs the following reviews under the SRP sections indicated: a. Fuel centerline temperatures (for PWRs) are reviewed by the SRXB under SRP Section 4.2, subsections II.A.2(a) and (b).11 DRAFT Rev. 3 - April 1996 15.4.2-2 b. Uniform cladding strain (for BWRs) are reviewed by the SRXB under SRP Section 4.2, subsection II.A.2(b).12 c. The reactivity coefficients and control rod assembly worths involved are reviewed by the CPBSRXB under SRP Section 4.3. 13 d. The thermal margin limits (departure from nucleate boiling ratio (DNBR) for PWRs and minimum critical power ratio (MCPR) for BWRs) are reviewed by the SRXB under SRP Section 4.4, subsection II.1.14 II. ACCEPTANCE CRITERIA 1. The following General Design Criteria apply: a. General Design Criterion 10 (GDC 10), which requires that specified acceptable 15 fuel design limits are not to be exceeded during normal operation, including the effects of anticipated operational occurrencesAOOs. b. General Design