Document: NUREG-0800
Document ID: 1085af08-a4b7-4fe7-bfed-ca7a60f2022c
Document Type: srp
Title: LOSS-OF-COOLANT ACCIDENTS RESULTING FROM SPECTRUM OF
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070734.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.6.5
CFR Part: 
CFR Title: 

Content:
odes of ECCS equipment and the effect of the failure modes on the ECCS performance has been provided.26 1. The Containment Systems and Severe Accident Branch (CSB)(SCSB) review of SRP 27 Section 6.2.1 includes an evaluation of the functional capability of the containment for the spectrum of loss-of-coolant events. CSBSCSB verifies, upon request from 28 RSBSRXB, that the assumptions used for the containment response analysis have been 29 selected in a conservative manner for the LOCA analysis performed. Upon request from RSBSRXB, CSBSCSB reviews the containment pressure calculations utilized by the 30 31 applicant, or by the staff in an audit analysis, for the reflood portion of the ECCS performance analyses. The Core Performance Branch (CPB), upon request from RSB, verifies that the core physics data used by the applicant, or by the staff in independent audit analyses, are the appropriate data to be used. CPB also, upon request from RSB, reviews the power transient calculations DRAFT Rev. 3 - April 1996 15.6.5-4 (including moderator temperature, void and fuel temperature feedback effects, and decay heat) and the cladding rupture and swelling calculations.32 2. The Instrumentation and Controls System Branch (ICSB)(HICB) review of SRP 33 Sections 7.2 and 7.3 includes a review of the reactor protection system and associated ECCS controls and instrumentation with regard to automatic actuation, remote sensing and indications, remote control, and redundancy. Upon request from RSBSRXB,34 ICSBHICB verifies that the reactor protection system and associated ECCS controls 35 and instrumentation will function as described in the applicant's sequence of events for the safety analyses performed. 3. The ICSBHICB also, upon request from RSBSRXB, reviews the failure modes 36 37 analysis of the ECCS to verify that an adequate analysis of possible failure modes of ECCS instrumentation and controls equipment and the effect of the failure modes of 38 that equipment on the ECCS