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:
, above, with a surfacing not over 3.2 mm (1/8-inch) thick that has a flame spread rating not 72 higher than 50 when measured using ASTM E-84 (Reference 55) Test "Surface 73 Burning Characteristics of Building Materials.".74 Raceway - refer to Regulatory Guide 1.75. Raceway Fire Barrier - Non-load bearing partition type envelope system installed around electrical components and cabling that are rated by test laboratories in hours of fire resistance and are used to maintain safe shutdown functions free of fire damage.75 Restricted Area - any area to which access is controlled by the licensee for purposes of protecting individuals from exposure to radiation and radioactive materials. Safety-Related Systems and Components - systems and components required to shut down the reactor, mitigate the consequences of postulated accidents, or maintain the reactor in a safe shutdown condition. Secondary Containment - a structure that completely encloses primary containment, used for controlling containment leakage. Sprinkler System - a network of piping connected to a reliable water supply that will distribute the water throughout the area protected and will discharge the water through sprinklers in sufficient quantity either to extinguish the fire entirely or to prevent its spread. The system, usually activated by heat, includes a controlling valve and a device for actuating an alarm when the system is in operation. The following categories of sprinkler systems are defined in NFPA 13 (Reference 13) , "Standard for the Installation of Sprinkler Systems" : 76 77 Wet-Pipe System Dry-Pipe System Preaction System Deluge System Combined Dry-Pipe and Preaction System On-Off System Standpipe and Hose Systems - a fixed piping system with hose outlets, hose, and nozzles connected to a reliable water supply to provide effective fire hose streams to specific areas inside the building. 9.5.1-19 DRAFT Rev. 4 - April 1996 Water Spray System - a network of piping similar to a sprinkler system