What are fire classes?

Fire or category class are usually defined by the type of fuel or heat responsible for starting a fire, but in some cases the classification is also performed in accordance with how the fire can be extinguished. The classification also differs slightly among the world regions. Fire classification serves to help people fight fires by quickly adjusting the type of fire with the most suitable type of fire extinguisher. Different classes of fire must be solved in different ways.

There are several sources that can support fires. Ordinary flammable substances are physical objects such as wood, rubber or fabric that is sufficiently warmed up and burned. Some types of metal may also be ignited, but this will usually require special circumstances and more extreme heat levels. Fixed classes include those related to flammable liquids or gases, electricity and oil or fat oils.

Common flammable fires that are often launched deliberately in the area containedThe rip in the fireplace can usually be extinguished by means of water to cool the heat that causes combustion. This class of fire can also be struck with foam and prepare the fire of its necessary oxygen stock. Other classes of fire may require more specialized fire extinguishers.

Electric fire is commonly struggled with carbon dioxide, because foam or water could act as a dangerous electricity conductor. Foumable liquid fires could sometimes also fight foam, but gas fires usually require the use of carbon dioxide, halon or dry chemicals to interrupt chemical reactions causing fire. Metal fires were usually fought using dry powders such as graphite, sodium chloride or copper powder, while large fires involving cooking or fats require a wet chemical fire extinguisher. Small kitchen fires, such as a small flame for cooking, can usually stop the paid metal lid over the fire, thuslimits the available oxygen.

There is some overlap of ways to extinguish different types of fires. For this time, the world regions have developed slightly different fire classification systems. For example, in the US system, liquids and gases are classified in the same class because they were often fought in a similar way. They are classified as two separate classes in Australian and European systems. In all systems, the fire classes are identified by the letter; For example, "Class A" categorizes a common flammable class in all regions. However, specific letters assigned to each type of fire differ somewhat in regions.