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Know the Working of Fire Extinguishing Systems!

Fire extinguishers are handy devices that keep a fire from spreading. These systems prove to be the call of the day by cutting the supplies of oxygen by sheer force, or by forming a blanket around the fire. Fire alarms are also useful because they can sense possible fire damage.

Fire extinguishing devices, also known as fire suppression systems, are compatible with fire alarm systems and smoke alarms, in compliance with a legal clause-NFPA 13. There are essentially two types of fire suppressant systems: Wet Fire Sprinklers and Gaseous Agents.Feel free to find more information at Sinisi Solutions-Fire Wall Construction.

Wet fire sprinklers sprinkle water when the effects of a spread of fire have been detected, such as smoke or increased surrounding thermal temperature compared to normal room temperature. Each such sprinkler has a highly sensitive glass bulb connected by a metal (as it is a good conductor) to the sprinkler. Each sprinkler works independently with other sprinklers and thus facilitates water supply to the affected area. The liquid inside the bulb is expanding due to excessive heat, and as a result, the bulb’s glass breaks. The bulb color indicates the fire propagation power. The bulb, for example, gets an orange or red colour, at normal temperature. At 120 Celsius high temperatures the bulb’s color is blue. It is turning black at temperatures even higher, say 300 Celsius. Wet fire sprinklers are automatic fire extinguishing systems which once properly set up need not be handled manually. ESFR sprinklers (Fast Response to Early Suppression) are the best of their kind. They are used widely in the private sector, schools, malls, large halls, theatres, hospitals and some bungalows as well. They are however more expensive than the extinguishers of the common day.

Gaseous agents require either the use of extremely active agents or non-reactive inert gasses that are expelled through solid propellant gas generators. Functioning on all of these principles:

Remove the fuel that spurred the explosion.

Oxygen removal to stop burning, and fire spread.

Heat reduction with agents such as Novec 1230

The gaseous fire extinguishing devices are dealt with in two ways. The first method is to apply it straight to the fire. There are no barriers around the affected location. This method is called application locale. Another way of using this is through the flooding system. It demands that the place be vacated, and is surrounded by physical barriers. It intensifies the gaseous agents in the particular three-dimensional location, and more effectively stops the spread of fire.