Document: NUREG-0800
Document ID: 05a851a6-07ff-41b4-8528-a032ba433e04
Document Type: srp
Title: FIRE PROTECTION PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0327/ML032740044.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.1
CFR Part: 
CFR Title: 

Content:
s protected by or adjacent to areas with gaseous fire suppression systems. 8.1.7 Station Battery Rooms Battery rooms important to safety should be protected against fires and explosions. Battery rooms should be separated from each other and other areas of the plant by barriers having a minimum fire rating of 3 hours inclusive of all penetrations and openings. Switchgear, inverters, and battery chargers should not be located in these battery rooms. Redundant battery chargers may be located with the battery switchgear and should be protected in a manner consistent with that for redundant switchgear (see Section 8.1.5). Automatic fire detection should be provided to alarm and annunciate in the control room and alarm locally. Ventilation systems in the battery rooms should be capable of maintaining the hydrogen concentration below Revision 4 - October 2003 34 2%. Loss of ventilation should be alarmed in the control room. Standpipes, hose stations, and portable extinguishers should be readily available outside the room. 8.1.8 Diesel Generator Rooms Specific fire protection considerations for review of diesel generator rooms include: a. Fire barrier separations should be provided between redundant systems and from other areas of the plant. b. Day tank fuel supplies should be designed and located in accordance with the guidelines in Regulatory Guide 1.189. c. Automatic fire suppression should be installed to suppress or control any diesel generator fuel oil or lubricating oil fires. Impacts of suppression systems on operating generators should be addressed in the fire hazard analysis. Automatic fire detection and manual suppression capability should be provided. d. Drainage for firefighting water including the potential for propagation of combustible liquid fires to other interconnected areas via drainage systems. 8.1.9 Pump Rooms Structures and rooms housing redundant pumping systems important to safety should be separated from each other and from other areas of the plant