Document: NUREG-0800
Document ID: 96ddbfc8-7fd0-4a33-9fbe-144d653b6e9f
Document Type: srp
Title: REACTOR CORE ISOLATION COOLING SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070433.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.6
CFR Part: 
CFR Title: 

Content:
lves will result in line voiding. Proper vent location and filling and venting procedures are still needed. In addition, a special keep-full system with appropriate alarms is needed to supply water to the discharge lines at sufficiently high pressure to prevent voiding. Operating and maintenance procedures shall be reviewed by the applicant to assure that adequate measures are taken to avoid water hammer due to voided line conditions. Guidance for water hammer prevention and mitigation is found in NUREG-0927 (Reference 18).102 19. The reviewer confirms that the RCIC system capability is sufficient with respect to the plant's ability to cope with, and recover from an SBO of a specified duration by determining compliance with Regulatory Guide 1.155 positions C.3.2, C.3.3, and C.3.5 as related to the design of the RCIC system. This review is coordinated with the review of the SBO event under SRP Section 8.3.1.103 20. The reviewer contacts EMEB to verify that test results on the steam line containment isolation valves show the valves will isolate under expected conditions as discussed in Generic Letter 89-10, Supplement 3 (Reference 14).104 21. The reviewer verifies that a leakage reduction program has been implemented and that the program and RCIC system design meet the criteria of NUREG-0737, Action Plan Item III.D.1.1.105 22. The reviewer contacts SCSB to verify that the design of the suppression pool suction strainers, as reviewed in SRP Section 6.2.2, are adequate and meet specified requirements for operation of the RCIC pump.106 23. The reviewer checks the RCIC pump minimum flow design capacity and minimum flow testing to verify that the flow rate meets the pump manufacturer's recommendations to prevent pump damage and overheating (Reference 16).107 5.4.6-13 DRAFT Rev. 4 - April 1996 The RCIC system uses a steam-driven turbine. Typical design features for the steam supply line include (a) drain pots, (b) sloped lines, and (c) limitations on opening and closing