Document: NUREG-0800
Document ID: d2f0cc81-920c-4065-b74b-67114ba68b0e
Document Type: srp
Title: through 7.9 of the SAR. Where exceptions are taken to the guidance provided by regulatory guides, and
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500493.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
CFR Part: 
CFR Title: 

Content:
FR 50.34(f)(2)(xiv) should be addressed in the review of Section 7.3 of the SAR and should be coordinated with the Containment Systems and Severe Accident Branch (SCSB). NUREG-0737 provides additional guidance on conformance with these requirements. h. 50.34(f)(2)(xix) [TMI Action Plan Item II.F.3] Instrument for Monitoring Plant Conditions Following Core Damage "Provide instrumentation adequate for monitoring plant conditions following an accident that includes core damage." Applicability — Information systems important to safety. Review Methods — Instrumentation for monitoring plant conditions following core damage should be included in the information systems important to safety. There should be instrumentation of sufficient quantity, range, availability, and reliability to permit adequate monitoring of plant variables and systems during and after an accident. Sufficient information should be provided to the operator for (1) taking planned manual actions to shut the plant down safely; (2) determining whether the reactor trip, engineered safety feature systems, and manually initiated safety-related systems are performing their intended safety functions (i.e., reactivity control, core cooling, and maintaining reactor containment system (RCS) and containment integrity); and (3) determining the potential for causing a gross breach of the barriers to radioactivity release (i.e., fuel cladding). The evaluation of conformance with this requirement should be addressed in the review of Section 7.5 of the SAR. i. 50.34(f)(2)(xx) [TMI Action Plan Item II.G.1] Power for Pressurizer Level Indication and Controls for Pressurizer Relief and Block Valves "Provide power supplies for pressurizer relief valves, block valves, and level indicators such that: (A) Level indicators are powered from vital buses, (B) motive and control power connections to the emergency power sources are through devices qualified in accordance with requirements applicable to systems important to