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Mining Publication: Effectiveness of Various Concentrations of an Inert Gas Mixture for Preventing and Suppressing Mining Equipment Cab Fires: Development of a Dual-Cab Fire Inerting System
Keywords: Cabs Fire and explosion prevention Fire suppression Fires Inerting gases
Original creation date: March 2007
Authors: MI DeRosa, CD Litton
Peer Reviewed Journal Article - March 2007
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 20031672
Fire Technol 2007 Mar; 43(1):29-44
The National Institute for Occupational Safety and Health (NIOSH/PRL) conducted a series of large-scale experiments to evaluate the effectiveness and safety of various concentrations of an inert gas mixture (CO2, 8%; N2, 50%; Ar, 42%) for preventing and suppressing cab fires. Comparison of concentrations effectiveness in yielding safe times has led to the choice of an optimum gas mixture concentration, discharged in the cab through a muffled nozzle system, for the development of a dual cab fire inerting system. Of note is that safety training programs, including the synchronization of performed tasks, need to accompany this technology to enhance operator's efficiency and safety during fire emergencies within the safe times yielded by the cab fire inerting system. Cab fires are caused by the ignition of flammable vapors and mists (ball of fire) that penetrate the cab during prolonged hydraulic fluid and fuel fires, and electrical malfunctions involving other cab combustible materials. Often, these fires force the operator to exit the cab under hazardous conditions during a time needed to perform emergency tasks. Hence, it is important to provide the operator, not only with an engine fire suppression system (dry chemical powder), but also with a cab fire protection system, effective both in preventing the ignition of flammable vapors in the cab, and suppressing cab material fires.
Image of publication Effectiveness of Various Concentrations of an Inert Gas Mixture for Preventing and Suppressing Mining Equipment Cab Fires: Development of a Dual-Cab Fire Inerting SystemPeer Reviewed Journal Article - March 2007
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 20031672
Fire Technol 2007 Mar; 43(1):29-44
See Also
Evaluation of the Bagged Stone Dust Barrier Effectiveness in a Bord and Pillar Mine
Inflatable Partitions for High-Expansion Foam Generators
Innovative Strategies for Mine Fire Preparedness
Mine Fires - Measuring the Efficacy of Gas-Enhanced Foam
Performance-Based Fire Safety Designs for Self-Escape in Underground Mines
Rapid Detection and Suppression of Mining Equipment Cab Fires
Remote Mine Fire Suppression Technology
The Status of Mine Fire Research in the United States
Technical Solutions for Enhancements to Mine Safety Using Barricade II Fire Blocking Gel
Understanding Mine Fire Disasters by Determining the Characteristics of Deep-Seated Fires
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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