Document: NUREG-0800
Document ID: 030a527a-e2e7-4d90-b34f-4662fb984153
Document Type: srp
Title: STRATEGIES AND GUIDANCE TO ADDRESS LOSS OF LARGE AREAS OF
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1331/ML13316B202.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.4
CFR Part: 
CFR Title: 

Content:
from the target areas. The plans and strategies for water spray scrubbing and containment of contaminated runoff should be described in the application in a manner consistent with guidance in Appendix D of NEI 06-12, Revision 3 and subsequently implemented in the site procedures by the licensee. 23. Maintenance and Testing The reviewer should verify that the applicant describes how equipment relied upon to implement the strategies required by 10 CFR 50.54(hh)(2) will be maintained and periodically tested to ensure it will operate when called upon. Installed plant equipment with established maintenance and testing requirements may not need additional maintenance and testing. However, if these systems are modified to accommodate the strategies (e.g., adding fire hose connections) then licensees should confirm that existing maintenance and testing are adequate. Any new fire pumps, hoses, or nozzles purchased for these strategies should be maintained by licensees. An adequate program for equipment requiring maintenance should include: periodic surveillance checks, start and run checks, and pump flow tests. Other tools, adaptors, wrenches, jumpers, etc., that do not require maintenance or testing should, at a minimum, be stored in an accessible location and periodically inventoried to ensure that the equipment is available when needed. The NRC staff recognizes that equipment must be taken out of service for routine maintenance activities for varying periods of time. However, a program which allows equipment needed to implement the strategies required by 10 CFR 50.54(hh)(2) to be out of service for an indefinite period of time is considered to be inconsistent with the requirement to implement strategies intended to maintain or restore core cooling, containment, and SFP cooling capabilities under the circumstances associated with LOLAs of the plant due to explosions or fire. Holders of COLs or operating licenses should ensure that reasonable controls on the availability of