API RP 2030-2014 pdf download.Application of Fixed Water Spray Systems for Fire Protection in the Petroleum and Petrochemical Industries.
2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. API Recommended Practice 751 , Safe Operation of Hydrofluoric Acid Alkylation Units API Recommended Practice 2001 , Fire Protection in Refineries API Recommended Practice 2021 , Management of Atmospheric Storage Tank Fires API Recommended Practice 221 8, Fireproofing Practices in Petroleum and Petrochemical Processing Plants API Standard 251 0, Design and Construction of Liquefied Petroleum Gas (LPG) Installations API Publication 2510A, Fire Protection Considerations for the Design and Operation of Liquefied Petroleum Gas (LPG) Storage Facilities NFPA 1 , Fire Protection Handbook, 20 h Edition NFPA 1 1 , Standard for Low-, Medium-, and High-Expansion Foam Systems NFPA 1 3, Installation of Sprinkler Systems NFPA 1 5, Water Spray Fixed Systems for Fire Protection NFPA 1 6, Installation of Foam-Water Sprinkler and Foam-Water Spray Systems NFPA 20, Installation of Stationary Fire Pumps for Fire Protection NFPA 24, Installation of Private Fire Service Mains and their Appurtenances NFPA 25, Inspection, Testing and Maintenance of Water Based Fire Protection Systems NFPA 72, National Fire Alarm Code NFPA 21 4, Water-Cooling Towers NFPA 750, Water Mist Fire Protection Systems NFPA 850, Recommended Practice for Fire Protection for Electric Generating Plants and High Voltage Direct Current Converter Stations FM 2 , Global Property Loss Prevention Data Sheets # 7-14
3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 automatic spray systems Spray systems designed to actuate when a sensor detects a fire; no action by personnel is required. 3.2 control of burning A reduction in the rate of burning and heat release from a fire through application of water spray to the source of the fire or fuel surface until the source of fuel can be shut off, the fire can be extinguished or the fuel is all consumed. 3.3 deluge system As defined by NFPA is an installation equipped with multiple open nozzles connected to a water supply by means of a deluge valve which allows water to flow from all nozzles simultaneously. This is similar to a water spray system, but does not use directional water spray nozzles to achieve a specific water discharge and distribution. In the refining and petrochemical industries the term deluge system is generally a system without nozzles in which all the water is applied from an open pipe. API 251 0 and API 251 0A describe such a system at the top of a vessel which allows water to run down the sides in a thin film, frequently using a weir to improve distribution and assist the even flow of water over the protected vessel. 3.4 deluge valve A system actuation valve which allows water to flow into a piping system to discharge from all open pipes or spray nozzles. A deluge valve can be opened automatically in response to a detection system installed in the area being protected or by manual operation in an area remote from the fire area. 3.5 envelope The three-dimensional space enclosing the fire. 3.6 exposed equipment Equipment subject to fire damage, usually from a source other than the equipment being protected. 3.7 exposure protection The absorption of heat through application of water spray to structures or equipment exposed to a fire (directly or by radiant convective heat from a fire), to limit surface temperature to a level that will minimize damage and prevent failure.
3.11 manual spray systems Spray systems that by design must be actuated by a person. 3.12 may Indicates provisions which are optional. 3.13 risk The probability of exposure to a hazard, hazardous environment or situation which could result in harm or damage 3.14 risk assessment The identification and analysis, either qualitative or quantitative, of the likelihood and outcome of specific events or scenarios that result in harm or damage with judgments of probability and consequences. 3.15 risk-based analysis A review of potential hazards and needs to eliminate or control such hazards based on a formalized risk assessment 3.16 rundown coverage A protective water film flowing by gravity onto lower portions of equipment (such as vessels or towers) from water applied to higher portions. 3.17 shall Indicates provisions required for conformance to provisions of this standard or which are mandatory for conformance to other Standards or Codes. 3.18 should Indicates provisions which are recommended but not mandatory. 3.19 water spray system An automatic or manually actuated fixed pipe system connected to a water supply and equipped with water spray nozzles designed to provide a specific water flow rate and particle size discharge and distribution over the protected surfaces or area. 3.20 water spray nozzle An open or automatic (self-actuating) device that, when discharging water under pressure, will distribute the water in a specific, directional pattern.