Document: NUREG-0800
Document ID: c674c9e0-9f79-481c-9349-461015e181cb
Document Type: srp
Title: INADVERTENT LOADING AND OPERATION OF A FUEL ASSEMBLY IN AN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070719.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.7
CFR Part: 
CFR Title: 

Content:
IMPROPER POSITION REVIEW RESPONSIBILITIES Primary - Core Performance Branch (CPB) Reactor Systems Branch (SRXB)1 Secondary - None I. AREAS OF REVIEW The review of fuel-loading errors considers: 1. The spectrum of misloading events analyzed. A sufficient number of fuel-loading errors must be studied by the applicant and presented to show that the worst situation undetectable by incore instrumentation has been identified. The kinds of errors considered should include loading of one or more fuel assemblies into improper locations and, where physically possible, with incorrect orientation. For those reactors in which burnable poison or fuel rods are added to or removed from fuel assemblies at the plant, errors in these processes must be considered. 2. Changes in the power distribution and increased local power density. 3. The provisions made to search for loading errors at the beginning of each fuel cycle. CPBSRXB also reviews the effect of misloaded fuel on nuclear design parameters, the detection 2 of fuel-loading errors, and any operational restrictions that would assist in staying within fuel rod failure limits. DRAFT Rev. 2 - April 1996 15.4.7-2 Review Interfaces3 On request, the appropriate technical review branchEmergency Preparedness and Radiation Protection Branch (PERB) reviews the radiological implications of misloaded fuel or the 4 measures provided to minimize the probability of a fuel misloading. II. ACCEPTANCE CRITERIA The acceptance criteria for this SRP section are as follows: 1. General Design Criterion 13 (Ref. 1) (GDC 13) as it relates to instrumentation and 5 controls provided to monitor variables over anticipated ranges for normal operations, anticipated operational occurrences, and for accident conditions. 2. 10 CFR Part 100 (Ref. 2) as it relates to offsite consequences resulting from reactor 6 operations with an undetected misloaded fuel assembly. The primary safeguards against fuel-loading errors are procedures and design features to minimize