Document: NRC Regulatory Guide
Document ID: 8e45dce1-e1e7-4415-b1dd-7e2a610e545b
Document Type: regulatory_guide
Title: Fire Protection for Nuclear Power Plants (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2023/ML20231A835.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.189
CFR Part: 
CFR Title: 

Content:
d. Turnover procedures that ensure an orderly transfer of control from the alternative or dedicated shutdown panel to the control room have been completed. 5.5.3 Repair Procedures The licensee should develop procedures for performing repairs necessary to achieve and maintain cold-shutdown conditions. For alternative shutdown, procedures should be in effect to accomplish repairs necessary to achieve and maintain cold shutdown within 72 hours. For plants that must proceed to cold shutdown within 72 hours, the procedures should support the required time for initiation of cold shutdown. The performance of repair procedures should not adversely affect operating systems needed to maintain hot shutdown. 5.6 Shutdown and Low-Power Operations Safe-shutdown requirements and objectives focus on achieving shutdown conditions for fires occurring during normal at-power operations. During shutdown operations (i.e., maintenance or refueling outages), fire risk may increase significantly as a result of work activities. In addition, redundant systems important to safety may not be available as allowed by plant technical specifications and plant procedures. The FPP should be reviewed to verify that fire protection systems, features, and procedures will minimize the potential for fire events to affect safety functions (e.g., reactivity control, reactor decay heat removal, spent fuel pool cooling) or result in the unacceptable release of radioactive materials, under the differing conditions that may be present during shutdown operations. DG-1359, Page 91 6. Fire Protection for Areas Important to Safety Several areas within a nuclear power plant present unique hazards or design issues related to fire protection and safe shutdown. This section provides guidance applicable to specific plant areas. 6.1 Areas Related to Power Operation 6.1.1 Containment Fire protection for the primary and secondary containment areas should be provided for the hazards identified in the fire hazards analysis.