Document: NUREG-0800
Document ID: 80fe9eee-2d6e-4a7e-b7dd-ec23aab2d39f
Document Type: srp
Title: STRATEGIES AND GUIDANCE TO ADDRESS LOSS OF LARGE AREAS OF
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1211/ML121110138.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.4
CFR Part: 
CFR Title: 

Content:
the fire protection water supply mains located underground (also called a ring header) using alternate water supplies (e.g., lake, river, cooling tower basin, available water tanks, etc.) with either appropriately staged onsite equipment or arriving offsite equipment should be developed and implemented. The means should be either documented in site guidelines or demonstrated by the appropriate fire responders. The plans and strategies for feeding the fire protection ring header from alternate water supplies 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 guidelines by the licensee. 14. Boiling Water Reactor: Containment Venting and Vessel Flooding (Item B.2.e) For applicable power plant designs, guidelines should be developed for venting primary containment to secondary containment (or atmosphere, if venting to secondary containment is not achievable) in a condition where no power is available. Also, procedures should be developed for using condensate pumps to provide cooling water to the reactor vessel. The plans and strategies for containment venting and vessel flooding 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 guidelines by the licensee. 15. Use of Plant Equipment During Loss of Power Situations (Item B.2.g) This item includes development of procedures to start an emergency diesel generator without direct current (dc) power, development of procedures to start non-alternating current (ac) powered pumps used for decay heat removal without dc power, and development of guidelines to use a fire pumper to supply cooling water to the reactor core—for power plant designs with injection capability—and to the SFP. These procedures should be written based on strategies developed using guidance in NEI 06-12, Revision 3. The plans and strategies for use