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:
keeping practices should ensure that drainage systems, especially drain hub grills, in areas containing fixed water-based suppression systems, remain free of debris to minimize flooding if the systems discharge. RG 1.39, “Housekeeping Requirements for Water-Cooled Nuclear Power Plants” (Ref. 66), provides guidance on housekeeping, including the disposal of combustible materials. 2.4 Fire Protection System Maintenance and Impairments The licensee should establish fire protection administrative controls to address the following issues: a. Qualified personnel should maintain and test fire protection features (see Regulatory Position 1.6.1.c of this guide). DG-1359, Page 44 b. A permit system should control impairments to fire barriers, fire detection, and fire suppression systems. Compensatory measures (see Regulatory Position 1.5 of this guide) should be established in areas where systems are disarmed. c. Successful fire protection requires inspection, testing, and maintenance of the fire protection equipment. A test plan that lists the individuals and their responsibilities in connection with routine tests and inspections of the fire protection systems should be developed. The test plan should contain the types, frequency, and detailed procedures for testing. Frequency of testing should be based on the code of record for the applicable fire protection system. Procedures should also contain instructions on maintaining fire protection during those periods when the fire protection system is impaired or during periods of plant maintenance (e.g., fire watches). d. Fire barriers, including dampers, doors, and penetration seals, should be routinely inspected. Penetration seals may be inspected on a frequency and relative sample basis that ensures that the seals are functional. Sample size and inspection frequency should be determined by the total number of penetrations and observed failure rates. NFPA 25, “Standard for the Inspection, Testing, and Maintenance of