Document: NUREG-0800
Document ID: 71224475-ca63-4c09-acc1-c682d58112dd
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550082.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
or which there is a proposed change in type or purpose, the applicant/licensee should document the rationale for the change. Licensees may make modifications within the plant's current licensing basis without referencing Revision 4 of Regulatory Guide 1.97. 4. Review Procedures The review procedure for accident monitoring instrumentation is described in SRP Section 7.5, subsection III. BTP 7-10-7 Revision 5 - March 2007 Table 1. For BWRs: Acceptable Deviations and Clarifications to Revisions 2 and 3 of Regulatory Guide 1.97 Variable Deviation Acceptance Guidelines/Clarification Neutron flux • Category • Equipment qualification • Redundancy • Power source • Quality assurance • Range Except for applications submitted after January 13, 1993 (which should satisfy the guidelines identified in Regulatory Guide 1.97), the design criteria identified in NEDO-31558-A, “Position on NRC Regulatory Guide 1.97, Revision 3, Requirement for Post-Accident Neutron Monitoring System,” are an acceptable alternative to Category 1 criteria. Pursuant to these alternate criteria, the applicant/licensee should perform a plant-specific evaluation of the electrical power distribution to the neutron monitoring system (including the recorders) to verify that the instrument power is not lost during design basis events. Coolant level in reactor vessel • Range • Redundancy If redundant channels of Category 1 instrumentation cover the fuel zone and the wide range (i.e., all manual and automatic trip functions), a single channel of Category 3 upset range instrumentation (from the upper end of the wide range to the top of the vessel or centerline of the main steamline) is acceptable for detection of water carryover. Core temperature N/A This variable is not necessary for satisfying the guidelines identified in Regulatory Guide 1.97, per NUREG-0737, Supplement 1, “Clarification of TMI Action Plan Requirements: Requirements for Emergency Response Capability.” Drywell sump and