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FIRE PROTECTION Slrsflt floor stair ant Enclosed stairway Fig. 33*1 Plon views of types of emergency exits. Stair enclosure, usually of masonry, prevents (ire on any floor trapping persons above Smokeproof tower is better, as open ing to air at each floor largely prevents chance of smoke in stairway. Horizontal exit provides a quick refuge, lessens need of hosty flight down stairs Horizontal sliding Are doors provided for safeguarding property values are arranged to close automatically in case of fire if open Swinging doors are self-closing Two wall openings are needed for exit in two directions Courtesy National fire Protection Association Principles of Fire Protection Fire protection is a specialized field in which voluminous engineering information has been developed about its many detailed aspects In the absence of a fire protection engineer within an organization, the person responsible for overall industrial safety should be familiar with the sources of this information if not with the complete tech nology Authontative fire protection literature is available from such organizations as the National Fire Protection Association, Na tional Board of Fire Underwriters, and Factory Mutual Engineering Division of Associated Factory Mutual Fire Insurance Companies These are discussed in Chapter 12, "Sources of Help for the Safety Man.''0 Fire insurance companies and some trade associations00 publish information on fire hazards and recommendations for preven tion and protection in their respective fields The safety engineer with special fire problems should seek specific advice from these trade associations, as well as from his fire insurance earner, local fire inspec tion bureau or fire department, and the governmental agency having jurisdiction Prevention of personal injury or loss of life by fire should be the first objective of all fire protection Life safety, where in volved, is given primary consideration in all the fire protection recommendations made in this manual Fot a complete listing consult Section 2, Fire Protection Handbook, 12 ed, pub lished by the National Fire Protection As sociation, 60 Batterymarch St, Boston Many are listed in Chapter 12 also For a complete listing see the latest Directory of National Associations of Businessmen published by the U S Department of Com merce and also available from the U S Govt Printing Office, Washington, D C. 33-2