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:
t, then this item is not applicable. The analysis should be available for NRC inspection. The reviewer should verify that the applicant indicates that, a contiguous area will be established in the SFP and procedures will ensure that sufficient space is available to support the downcomer effect for natural circulation cooling. This space may be limited by SFP loading issues (such as space, criticality, technical specification issues, and boraflex degradation). The downcomer area should be maximized based on limiting conditions in the pool. Applicants should assure that 200 gpm of spray flow reaches the SFP and that the entire SFP is covered. Applicants for COLs or operating licenses should justify applying such a flow rate to their pools and also justify the assumption that the complete pool is covered. Elevated spray strategies should have the same nozzle flow as the local strategy and the spray should be able to reach the intended elevation of the SFP. The applicant should develop procedures/guidance to enhance air cooling of fuel in the SFP, in the event spray cooling cannot be established. This can be accomplished by promoting passive ventilation of the bulk air space above the pool with the environs (e.g., opening doorways or blowout panels, etc. SFP mitigation measures 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. 21. Training The reviewer should verify that the applicant describes how training (preferably classroom training) will be incorporated into the licensee’s initial licensed operator training program as well as their licensed operator requalification program. The frequency of training on LOLA procedures and strategies should be the same as or more frequent than severe accident management guidelines (SAMG) training. Emergency response organization personnel, as well as licensed and non-licensed operators, should be