Document: NUREG-0800
Document ID: 757f66f9-1dd5-4125-9970-089087134ad9
Document Type: srp
Title: FIRE PROTECTION PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0905/ML090510170.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.1.1
CFR Part: 
CFR Title: 

Content:
d training); fire brigade and emergency response capability; the final design of fire protection systems and features; and the design and analysis of post-fire safe- shutdown capability. The review of COL applications should also consider the guidance to applicants provided in RG 1.206, ACombined License Applications for Nuclear Power Plants (LWR Edition).@ 1. Enhanced Fire Protection Criteria Based on operational experience with existing reactors and insights from examination of internal fire events, the staff determined that fire protection for safe-shutdown capability should be enhanced for new reactor designs. The enhanced fire protection criteria were initially proposed to the Commission in SECY-90-016. This criteria was extended to the review of passive LWR designs in SECY-93-087. These criteria are as follows: 9.5.1.1-16 Revision 0 – February 2009 Evolutionary advanced light-water reactor (ALWR) designers must ensure that safe shutdown can be achieved assuming that all equipment in any one fire area (excluding the control room and reactor containment) will be rendered inoperable by fire and that re- entry into the fire area for repairs and operator actions is not possible. Because of its physical configuration, the control room is excluded from this approach, provided an independent alternative shutdown capability that is physically and electrically independent of the control room is included in the design. Evolutionary ALWRs must provide fire protection for redundant shutdown systems in the reactor containment building that will ensure, to the extent practicable, that one shutdown division will be free of fire damage. Additionally, the evolutionary ALWR designers must ensure that smoke, hot gases or the fire suppressant will not migrate into other fire areas to the extent that they could adversely affect safe-shutdown capabilities, including operator actions. 2. Passive Plant Safe-Shutdown Condition As discussed in SECY-94-084, the definitions of safe