Fire testing, deluge systems

In areas where the possibility of fire is the greatest, a high speed ultraviolet detection system is employed. The ultraviolet eyes detect the presence of a flame and are interconnected with a high speed water deluge system. In some areas the fire detection devices have process shutdown capabilities. The detectors are situated such that the entire hazardous area can be monitored at all times. They are equipped with air shields that not only cool the detector but also blow clean air across the face of the lens, keeping any dust from accumulating on the lens, which assures detection capability. Further, the detectors have a built-in test lamp which serves as a check of... 

Water, particularly seawater, can have adverse effects on electrical supplies, and the control of drainage water is important to avoid spreading the fire testing of deluge systems and requires the classification of exposed electrical equipment in the protected area. 

Level 4 Modified Test for deluge systems is considered to provide the fire endurance necessary for a piping installation to survive a local fire of short duration, with simulated dry conditions and subsequent flowing water conditions. The system s functions are capable of being restored after the fire has been extinguished. Piping is exposed to a fire... 

The following appendices provide generic information on the periodic operational testing parameters used in the process industries for active fire protection systems (i.e., pumps, deluge systems, monitors, hose reels, foam systems, etc.). Further information can be found in the publication, NFPA 25 Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. 

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