DRIVING THE INDUSTRY SINCE 1991
INTERNATIONAL RESEARCH INSTITUTE DEVELOPS NEW STANDARDS FOR FIRE SUPPRESSION SYSTEMS
the performance of fire suppression systems in bus engine compartments. Te result, SP officials noted, can lead to improved passenger evacuation, reduced loss of life and property, and better identification of substandard fire suppression systems available on the market. Te standards were proposed in 2005. SP said its new method 4912
T
fire-test standard — developed in conjunction with international fire or- ganizations, vehicle manufacturers and insurance companies — demonstrates functionality against realistic fires that start in a bus engine compartment. A voluntary “P” mark of certification, tested in accordance to SPCR 183 certification rules developed by SP for
he SP Technical Research Institute of Sweden finalized standards to evaluate for the first time
fire suppression systems in bus and motorcoach engine compartments, as well as the SP method 4912 fire tests, demonstrates a high degree of robust- ness to buyers and sellers. It shows the certified fire suppression systems were also tested for resistance to harsh en- vironments in internationally accepted vehicle standards. SP said quality assurance and con-
trol over time is maintained through an independent, approved auditor that reviews factory production control. To obtain the “P” mark, a fire sup-
pression system must fulfill the require- ments in SP method 4912, a repeatable and reproducible test conducted in a test enclosure, where the fire-fighting performance of different suppression systems can be evaluated objectively. Te testing includes testing of
re-ignition due to fuel spray of flam- mable liquid onto hot surfaces. All
system components — such as nozzles, pressure cylinders, detectors, electronic components and control panels — are tested for harsh environments, EMC, change in temperature, corrosion, vibra- tion, humidity extremes and so forth. Te new standard was proposed last
September at the Fires in Vehicles 2012 International Conference in Chicago.
£ The test method for a fire suppression system includes realistic airflows and relevant fire scenarios.
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www.stnonline.com 31
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