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:
safe-shutdown operating procedures should be developed for those areas where alternative or dedicated shutdown is required. For other areas of the plant, shutdown would normally be achieved using the normal operating procedures, plant emergency operating procedures, or other abnormal operating procedures (see also Regulatory Position 5.3.1.3 for a discussion of the feasibility and reliability of operator manual actions). DG-1359, Page 90 5.5.2 Alternative or Dedicated Shutdown Procedures Procedures should be in effect that describe the tasks to implement alternative or dedicated shutdown capability when offsite power is available and when offsite power is not available for 72 hours. These procedures should also address necessary actions to compensate for spurious actuations and HIFs, if such actions are necessary to affect safe shutdown. Information in NEI 00-01, Revision 4, Appendix B.1, may be used to address multiple HIFs when used in a manner consistent with this guide. The NRC does not endorse the information in NEI 00-01, Revision 4, Appendix B.1, for analysis of Kapton cables. Kapton is a specific cable insulation material that has been shown to experience arc tracking phenomena. Procedures governing the return to the control room should consider the following conditions: a. The fire has been extinguished and so verified by appropriate fire protection personnel. b. Appropriate fire protection personnel and the shift supervisor have deemed the control room to be habitable. c. Damage has been assessed and, if necessary, corrective action has been taken to ensure that necessary safety, control, and information systems are functional (some operators may assist with these tasks), and the shift supervisor has authorized the return of plant control to the control room. 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