Document: NRC Regulatory Guide
Document ID: 80776ca5-a83d-4667-9a94-0bffa1befa91
Document Type: regulatory_guide
Title: Fire Protection Guidelines for Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1221/ML12216A013.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.120
CFR Part: 
CFR Title: 

Content:
ne served by the control room emergency ventilation system (see Standard Review Plan 6.4, "Habitability Systems"). Fire Area - that portion of a building or plant that is separated from other areas by bound- ary fire barriers. Fire Barrier - those components of construction (walls, floors, and the'ir supports, including beams, joists, columns, penetration seals or closures, fire doors, and fire dampers that are rated by approving laboratories in hours of resistance to fire and are used to prevent the spread of fire. Fire Stop - a feature of construction that prevents fire propagation along the length of cables or prevents spreading of fire to nearby combustibles within a given fire area or fire zone. Fire Brigade - the team of plant personnel assigned to firefighting and who are equipped for and trained in the fighting of fires.. Fire Detectors - a device designed to automatically detect the presence of fire and initiate an alarm system and other appropriate action (see NFPA 72E, "Automatic Fire Detectors"). Some typical fire detectors are -classified as follows: Heat Detector - a device that detects a predetermined (fixed) temperature or rate of temperature rise. Smoke Detector - a device that detects the visible or invisible products of combustion 1.120-3 Flame Detector - a device that detects the infrared, ultraviolet, or visible radiation produced by a fire. Line-Type Detector - a device in which detection is continuous along a path, e.g., fixed-temperature, heat-sensitive cable and rate-of-rise pneumatic tubing detectors. Fire Protection Program - the integrated effort involving components, procedures, and person- nel utilized in carrying out all activities of fire protection. It includes system and facility design, fire prevention, fire detection, annunciation, confinement, suppression, administrative controls, fire brigade organization, inspection and maintenance, training, quality assurance, and testing. Fire Rating - the endurance period of a fire barrier