NFPA 101B-2002 Code for Means of Egress for Buildings and Structures (Effective Date 8 8 2002).pdf

1、 NFPA 101B Code for Means of Egress for Buildings and Structures 2002 Edition NFPA, 1 Batterymarch Park, PO Box 9101, Quincy, MA 02269-9101 An International Codes and Standards Organization NFPA License Agreement This document is copyrighted by the National Fire Protection Association (NFPA), 1 Batt

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27、nd Publication of NFPA Documents,which is available upon request from the NFPA.)Copyright 2002, National Fire Protection Association, All Rights ReservedNFPA 101BCode forMeans of Egress for Buildings and Structures2002 EditionThis edition of NFPA 101B, Code for Means of Egress for Buildings and Stru

28、ctures, was preparedby the Technical Committee on Means of Egress, released by the Technical Correlating Com-mittee on Safety to Life, and acted on by NFPA at its May Association Technical Meeting heldMay 1923, 2002, in Minneapolis, MN. It was issued by the Standards Council on July 19, 2002,with an

29、 effective date of August 8, 2002, and supersedes all previous editions.This edition of NFPA 101B was approved as an American National Standard on July 19,2002.Origin and Development of NFPA 101BNFPA 101B, first published in 1999, was developed to address a subset of the subject areascovered by NFPA

30、 101, Life Safety Code namely, means of egress. NFPA offers NFPA 101B asa model reference for mandatory use by the model building codes in lieu of those codesindividual chapters on means of egress. See A.1.3 in Annex A.This 2002 edition reflects the requirements of the 2000 edition of NFPA 101.101B1

31、Technical Correlating Committee on Safety to LifeJames R. Quiter, ChairArup Fire, CA SERon Cot, Nonvoting SecretaryNational Fire Protection Association, MAAlastair J. M. Aikman, National Research Council ofCanada, ON RTJohn L. Bryan, MD SERichard W. Bukowski, National Institute of Standardsand Techn

32、ology, MD RTRep. National Fire Alarm Code CommitteeKenneth E. Bush, Maryland State Fire Marshals Office,MD ERep. International Fire Marshals AssociationLee J. Dosedlo, Underwriters Laboratories Inc., IL RTGene B. Endthoff, National Fire Sprinkler Association,IL MJackie T. Gibbs, Marietta Fire Depart

33、ment, GA URep. International Association of Fire ChiefsJ. Edmund Kalie, Jr., Prince Georges CountyGovernment, MD ERonald K. Mengel, System Sensor, IL MRep. National Electrical Manufacturers AssociationJake Pauls, Jake Pauls Consulting Services in BuildingUse words used in themasculine gender shall i

34、nclude the feminine and neuter; thesingular number shall include the plural and the plural shallinclude the singular. Where terms are not defined in thischapter, they shall be defined using their commonly acceptedmeanings within the context in which they are used. WebstersThird New International Dic

35、tionary of the English Language, Un-abridged, shall be a source for commonly accepted meaning.3.2 NFPA Official Definitions.3.2.1* Approved. Acceptable to the authority having juris-diction.3.2.2* Authority Having Jurisdiction (AHJ). The organiza-tion, office, or individual responsible for approving

36、 equip-ment, materials, an installation, or a procedure.3.2.3* Code. A standard that is an extensive compilation ofprovisions covering broad subject matter or that is suitable foradoption into law independently of other codes and standards.3.2.4 Labeled. Equipment or materials to which has beenattac

37、hed a label, symbol, or other identifying mark of an orga-nization that is acceptable to the authority having jurisdictionand concerned with product evaluation, that maintains peri-odic inspection of production of labeled equipment or mate-rials, and by whose labeling the manufacturer indicates com-

38、pliance with appropriate standards or performance in aspecified manner.3.2.5* Listed. Equipment, materials, or services included in alist published by an organization that is acceptable to the au-thority having jurisdiction and concerned with evaluation ofproducts or services, that maintains periodi

39、c inspection ofproduction of listed equipment or materials or periodic evalu-ation of services, and whose listing states that either the equip-ment, material, or service meets appropriate designated stan-dards or has been tested and found suitable for a specifiedpurpose.3.2.6 Shall. Indicates a mand

40、atory requirement.3.2.7 Should. Indicates a recommendation or that which isadvised but not required.3.3 General Definitions.3.3.1 Accessible Means of Egress. See 3.3.69.1.3.3.2* Aisle Accessway. That initial portion of an exit accessthat leads to an aisle.3.3.3 Ambulatory Health Care Facility. See 3

41、.3.74.1.3.3.4 Anchor Store. A department store or major merchan-dising center that has direct access to the covered mall but inwhich all required means of egress is independent of the cov-ered mall.3.3.5 Area.3.3.5.1 Floor Area.3.3.5.1.1 Gross Leasable Area. The total floor area desig-nated for tena

42、nt occupancy and exclusive use, expressed insquare meters (square feet), measured from the centerlines ofadjoining partitions and exteriors of outside walls.3.3.5.1.2 Hazardous Area. An area of a structure or buildingthat poses a degree of hazard greater than that normal to thegeneral occupancy of t

43、he building or structure, such as those101B6 MEANS OF EGRESS FOR BUILDINGS AND STRUCTURES2002 Editionareas used for the storage or use of combustibles or flam-mables; toxic, noxious, or corrosive materials; or heat-producing appliances.3.3.5.1.3 Living Area. Any normally occupiable space in aresiden

44、tial occupancy, other than sleeping rooms or roomsthat are intended for combination sleeping/living, bath-rooms, toilet compartments, kitchens, closets, halls, storage orutility spaces, and similar areas.3.3.6* Area of Refuge. An area that is either (1) a story in abuilding where the building is pro

45、tected throughout by anapproved, supervised automatic sprinkler system and has notless than two accessible rooms or spaces separated from eachother by smoke-resisting partitions; or (2) a space located in apath of travel leading to a public way that is protected from theeffects of fire, either by me

46、ans of separation from other spacesin the same building or by virtue of location, thereby permit-ting a delay in egress travel from any level.3.3.7 Atmosphere.3.3.7.1 Common Atmosphere. The atmosphere that existsbetween rooms, spaces, or areas within a building that are notseparated by an approved s

47、moke barrier.3.3.7.2 Separate Atmosphere. The atmosphere that existsbetween rooms, spaces, or areas that are separated by an ap-proved smoke barrier.3.3.8 Automatic. That which provides a function without thenecessity of human intervention.3.3.9 Barrier.3.3.9.1* Smoke Barrier. A continuous membrane,

48、 or a mem-brane with discontinuities created by protected openings,where such membrane is designed and constructed to restrictthe movement of smoke.3.3.9.2* Thermal Barrier. A material that limits the averagetemperature rise of an unexposed surface to not more than120C (250F) for a specified fire ex

49、posure complying withthe standard time-temperature curve of NFPA 251, StandardMethods of Tests of Fire Endurance of Building Construction andMaterials.3.3.9.3 Fire Barrier (Wall). A wall, other than a fire wall, thathas a fire resistance rating.3.3.10* Birth Center. A facility in which low-risk births areexpected following normal, uncomplicated pregnancies, andin which professional midwifery care is provided to womenduring pregnancy, birth, and postpartum.3.3.11 Bleachers. A grandstand in which the seats are notprovided with backrests.3.3.12* Building.