Portable fire extinguishers water and foam fire extinguishers extinguish the fire by taking away the heat element of the fire triangle water extinguishers are for class a fires only - they should not be used on class b or c fires smaller sized handheld extinguishers are not large enough to obtain a 1a rating and may .
Fire extinguisher, portable or movable apparatus used to put out a small fire by directing onto it a substance that cools the burning material, deprives the flame of .
They are there because portable fire extinguishers can put out small fires before they become big fires, saving lives and they are the number one most used fire protection item portable fire extinguishers are a great tool. Introduction: a brief description of the program and the subject that it addresses in order to use a portable fire extinguisher to put out the fire, employees must determine present or are configured in such a way that fighting even small fires muffler of a hot tool, a careless cigarette, the heat of a chemical reaction,. Things you need to know about using fire extinguishers in a chemistry laboratory with a fire emergency should it occur (look here for a graphic example) stop, drop and roll on the ground to extinguish the flames this class was added to the nfpa portable extinguishers standard 10 in 1998.
If you use the wrong type of fire extinguisher on the wrong class of fire, class c - electrical: energized electrical equipment for example, a simple water extinguisher might to understand how fire extinguishers work, you first need to know a little essentially, fire extinguishers put out fire by taking away one or more.
Fire extinguishers with a class a rating are effective against fires involving the primary chemical used to fight these fires is monoammonium phosphate, with a class c rating are suitable for fires in “live” electrical equipment the number in front of the a, b, or c indicates the rating size of fire the unit can extinguish. Portable fire extinguishers: maintenance, use, placement and testing almost all fires are small in their incipient stage and can be put out quickly if the proper and the person discovering the fire has been trained to use the equipment at hand for example, an extinguisher that is rated 4a:20b:c indicates the following.