Document: NUREG-0800
Document ID: 5c379bc2-cb0b-42ca-93af-dedf43c6cb30
Document Type: srp
Title: Appendix 7-A
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500542.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
Rev. 4 — June 1997 Appendix 7-A BTP HICB-10-4 identified in those tables are identified on Table 1 and Table 2 (respectively) of this BTP. Presented in Tables 1 and 2 are identification of the Reg. Guide 1.97 variable, the type of deviation from Reg. Guide 1.97 guidelines (e.g., deviation with respect to category, redundancy, range, direct measurement), and a summary of the acceptance guidelines or clarification associated with the deviation. 4. Review Procedures The review procedure for post-accident monitoring systems is described in part III of SRP Section 7.5. Table 1. Acceptable Deviations and Clarifications to Reg. Guide 1.97 for BWRs 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 Reg. Guide 1.97), the design criteria identified in NEDO-31558, "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), then 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 Reg. Guide 1.97, per NUREG 0737 Supplement 1, "Clarification of TMI Action Plan