Document: NUREG-0800
Document ID: 16c1145e-ffe2-48c4-bd44-0ccaeb83dc99
Document Type: srp
Title: FIRE PROTECTION PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070563.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.1
CFR Part: 
CFR Title: 

Content:
26] , "Fire Doors and 142 Windows." ) 143 One of the following measures should be provided to ensure they will protect the opening as required in case of fire: (a) Fire doors should be kept closed and electrically supervised at a continuously manned location; (b) Fire doors should be locked closed and inspected weekly to verify that the doors are in the closed position; (c) Fire doors should be provided with automatic hold-open and release mechanisms and inspected daily to verify that doorways are free of obstructions; or (d) Fire doors should be kept closed and inspected daily to verify that they are in the closed position. The fire brigade leader should have ready access to keys for any locked fire doors. Areas protected by automatic total flooding gas suppression systems should have electrically supervised self-closing fire doors or should satisfy option (a) above. DRAFT Rev. 4 - April 1996 9.5.1-38 (67) Personnel access routes and escape routes should be provided for each fire area. Stairwells outside primary containment serving as escape routes, access routes for firefighting, or access routes to areas containing equipment necessary for safe shutdown should be enclosed in masonry or concrete towers with a minimum fire rating of 2 hours and self-closing Class B fire doors. (78) Fire exist routes should be clearly marked. 144 (89) Each cable spreading room should contain only one redundant safety division. Cable spreading rooms should not be shared between reactors. Cable spreading rooms should be separated from each other and from other areas of the plant by barriers having a minimum fire resistance of 3 hours. (910) Interior wall and structural components, thermal insulation materials, radiation shielding materials, and soundproofing should be noncombustible. Interior finishes should be non-combustible. Materials that are acceptable for use as interior finish without evidence of test and listing by a nationally recognized laboratory are the following: Plaster,