Fire Extinguisher varieties
Water is one in every of the foremost economical asphyxiator varieties. They ought to solely be used on category A fires together with Paper, wood, fabrics, furniture, etc.
A water asphyxiator could be a solid red in color with a hose and nozzle hooked up, thus you'll direct a stream of water at all-time low of the fireplace. As water conducts electricity, water hearth extinguishers should not be used close to exposed to measure electricity cables. Water fire extinguishers square measure best unbroken aboard a greenhouse emission extinguisher that the risk of electrical fires is roofed in your building. Water extinguishers work by ending the flames and soaking (cooling) the materials within the hearth.
As with water, AFFF foam works on category A fires however may extinguish category B / inflammable liquid fires. Once sprayed onto a hearth, AFFF foam extinguishes and smothers the flames, then seals in any dangerous vapours beneath the surface of the froth. The froth conjointly penetrates porous materials and cools the fireplace because the water within the foam evaporates. Because the foam fire extinguisher is non-conductive and tested to the baccalaureate EN3 thirty five,000V insulator take a look at, they will be used close to however not on live electrical instrumentality. Foam hearth extinguishers may be distinguished by their cream color coded panel.
Carbon dioxide or greenhouse emission hearth extinguishers square measure safe to use on electrical fires. The greenhouse emission gas is non-conductive and doesn't leave a residue behind which will have an effect on the longer term performance of electrical instrumentality, not like foam or powder extinguishers. These asphyxiator varieties also are effective on category B fires (flammable liquids). greenhouse gas hearth fire extinguishers square measure distinguished by a black panel on the extinguisher body and by their horn that is to be pointed at the fireplace however not control just in case of a freeze burn.
Dry powder fire extinguisher asphyxiator device square measure the foremost versatile hearth extinguisher varieties and square measure ready to extinguish inflammable solids, liquids, gasses and electrical fires. These square measure usually counseled to be used on vehicles and within the home, however though they're multi-purpose, powder hearth extinguishers don't seem to be counseled to be used in fenced in areas, or on sensitive electrical instrumentality if alternative a lot of appropriate kinds of fire extinguisher square measure offered.