【正文】 plants and high voltage direct current (HVDC) converter stations, except for electric generating plants using nuclear fuel. NFPA 850 Remended Practice for Fire Protection for Electric Generating Plants and High Voltage Direct Current Converter Stations 20xx Edition NOTICE: An asterisk (*) following the number or letter designating a paragraph indicates that explanatory material on the paragraph can be found in Appendix A. Information on referenced publications can be found in Chapter 10 and Appendix E. Changes other than editorial are indicated by a vertical rule in the margin of the pages on which they appear. These lines are included as an aid to the user in identifying changes from the previous edition. Chapter 1 Introduction 11 Scope. This document provides remendations (not requirements) for fire prevention and fire protection for electric generating plants and high voltage direct current converter stations, except as follows: nuclear power plants are addressed in NFPA 803, Standard for Fire Protection for Light Water Nuclear Power Plants。 and hydroelectric plants are addressed in NFPA 851, Remended Practice for Fire Protection for Hydroelectric Generating Plants. 12 Purpose. This document is prepared for the guidance of those charged with the design, construction, operation, and protection of fossil fueled (., coal, gas, or oil) or alternative fueled (., municipal solid waste, refuse derived fuel, biomass, rubber tires, and other bustibles) steam electric generating plants, bustion turbine and internal bustion engine electric generating plants, and high voltage direct current converter stations. This document provides fire prevention and fire protection remendations for the safety of construction and operating personnel, the physical integrity of plant ponents, and the continuity of plant operations. Nothing in this document is intended to restrict new technologies or alternative arrangements. 13 Application. This document is intended for use by persons knowledgeable in the application of fire protection for electric generating plants and high voltage direct current converter stations. 中國最龐大的資料庫下載 Copyright NFPA 中國最龐大的資料庫下載 The remendations contained in this document are intended for new installations, as the application to existing installations might not be practicable. However, the remendations contained in this document represent good industry practice and should be considered for existing installations. It should be recognized that rigid uniformity of generating station design and operating procedures does not exist and that each facility will have its own special conditions that impact on the nature of the installation. Many of the specific remendations herein might require modification after due consideration of all local factors involved. 14 Definitions. Alternative Fuels. Solid fuels such as municipal solid waste (MSW), refuse derived fuel (RDF), biomass, rubber tires, and other bustibles that are used instead of fossil fuels (gas, oil, or coal) in a boiler to produce steam for the generation of electrical energy. * Approved. Acceptable to the authority having jurisdiction. * Authority Having Jurisdiction. The anization, office, or individual responsible for approving equipment, materials, an installation, or a procedure. Barrier, Fire. A continuous membrane, either vertical or horizontal, such as a wall or floor assembly, that is designed and constructed with a specified fire resistance rating to limit the spread of fire and that will also restrict the movement of smoke. Such barriers can have protected openings. Biomass. A boiler fuel manufactured by means of a process that includes storing, shredding, classifying, and conveying of forest and agricultural byproducts (., woodchips, rice hulls, sugar cane). Combustible. Any material that does not ply with the definition of either nonbustible or limited bustible. Combustible Liquid. A liquid having a flash point at or above 100176。F (176。C). (See NFPA 30, Flammable and Combustible Liquids Code.) Fire Loading. The amount of bustibles present in a given area, expressed in Btu/ft2 (kJ/m2). Fire Point. The lowest temperature at which a liquid in an open container will give off sufficient vapors to burn once ignited. It generally is slightly above the flash point. Fire Prevention. Measures directed toward avoiding the inception of fire. Fire Protection. Methods of providing for fire control or fire extinguishment. Fire Protection Rating. The time, in minutes or hours, that materials and assemblies used as opening protection have withstood a fire exposure as established in accordance with test procedures of NFPA 252, Standard Methods of Fire Tests of Door Assemblies, and NFPA 257, Standard on Fire Test for Window and Glass Block Assemblies, as applicable. Fire Rated Peration Seal. An opening in a fire barrier for the passage of pipe, cable, duct, and so forth, that has been sealed so as to maintain a barrier rating. FireResistant Fluid. A listed hydraulic fluid or lubricant that is difficult to ignite due to its high fire point and autoignition temperature and that does not sustain bustion due to its low heat of bustion. Fire Resistance Rating. The time, in minutes or hours, that materials or assemblies have withstood a fire exposure as established in accordance with the test procedures of NFPA 251, Standard Methods of Tests of Fire Endurance of Building Construction and Materials. 中國最龐大的資料庫下載 Copyright NFPA 中國最龐大的資料庫下載 Flammable Liquid. Any liquid having a flash point below 100176。F (176。C) and having a vapor pressure not exceeding an absolute pressure of 40 psi (276 kPa) at 100176。F (176。C). (See NFPA 30, Flammable and Combustible Liquids Code.) Fluid, Nonflammable. A nonflammable dielectric fluid that does not have a