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:
pabilities (e.g., equipment compatibility, training, drills, and command control) of offsite responders should be described in the fire protection program. Additional guidelines on mutual aid response are provided in Regulatory Guide 1.189 for operating nuclear power plants and Regulatory Guide 1.191 for permanently shutdown plants. 7. Building Design 7.1 General Building and Building System Design This section provides guidance on review of building layout (e.g., fire areas and zones), materials of construction, and building system design (e.g., electrical, HVAC, lighting, and communication systems) important to effective fire prevention and protection. Guidance for passive fire barrier design is provided in Section 7.2. 7.1.1 Building Layout - Fire Areas and Zones In accordance with GDC 3, structures, systems, and components important to safety must be designed and located to minimize the probability and effect of fires and explosions. The requirements of GDC 3 are met, in part, by compartmentalizing the facilities into fire areas and fire zones using passive fire barriers. These fire areas and zones serve the primary purpose of confining the effects of fires to a single compartment or area, thereby minimizing the potential for adverse effects from fires on redundant structures, systems, and components important to safety. Fire areas are typically defined by fire rated separations. Fire zones are subdivisions of a fire area and are typically based on fire hazards analyses that demonstrate that the fire protection systems and features within the fire zone provide an appropriate level of protection for the associated hazards. Fire zone concepts may be used to establish zones within fire areas where further subdivision into additional fire areas is not practical on the basis of existing plant design and Revision 4 - October 2003 27 layout. Evaluations by some licensees made prior to 10 CFR Part 50, Appendix R, were based on fire zones that do not meet the strict