Document: NUREG-0800
Document ID: e6b7e6d3-a99d-424d-bfa0-491bc48f46cf
Document Type: srp
Title: ISOLATION CONDENSER SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070810517.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.13
CFR Part: 
CFR Title: 

Content:
formance being calculated in accordance with an acceptable evaluation model and sufficient to provide assurance that the most severe postulated LOCAs are calculated. The ICS is an ECCS. Therefore, its emergency core cooling capability must be calculated, in accordance with an acceptable evaluation model, for a number of postulated LOCAs to provide assurance that the more severe postulated accidents are examined. 12. 10 CFR 50.63 requires that a plant provide sufficient capacity and capability to ensure that the core is cooled in the event of an SBO for a determined duration. The ICS provides DHR from the reactor core. The design capability of the plant, which allows it to operate regardless of ac power source availability, enables continued performance of 5.4.13-11 March 2007 the DHR function to support the plant in coping with an SBO. Regulatory Guide 1.155 identifies acceptable methods for complying with the requirements of 10 CFR 50.63. Compliance with 10 CFR 50.63 provides assurance that the ICS is capable of performing its intended function in the event of an SBO. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. The procedures below are used during a DC review to assure that the design criteria and bases and the preliminary design set forth in the preliminary SAR meet the acceptance criteria given in Subsection II of this SRP. For the review of a COL application, the procedures are also used to verify that the initial design criteria and bases have been appropriately implemented in the final design set forth in the final SAR. The COL and DC review also include