Comparison Of Fire Classes

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There are several concepts of fire classification in the world. The USA follows the NFPA system consist five types of fire, EU follows the European Standard “Classification of fire” (EN2:1992, incorporating amendment A1:2004) consist five types of fire, and Australian follow the Australian Standard “Classification of fire” consist six types of fire.

 

Considering above all classification standards a comparison of fire classes are given in the below chart:

Comparison of Fire Classes

American European Australian/Asian Fuel/Heat Source
Class A Class A Class A Ordinary Combustibles
Class B Class B Class B Flammable Liquids
Class C Class C Flammable Gases
Class C _ Class E Electrical Equipment
Class D Class D Class D Combustible Metals
Class K Class F Class F Cooking Oil or Fat

 

Types of Fires

Different types of fire extinguished in different ways. According to the burning principal, the fire is classified into six types. These are:

  1. Solid Fire – Class A
  2. Liquid Fire – Class B
  3. Gases Fire – Class C
  4. Metal Fire – Class D
  5. Electrical Fire – Class E
  6. Cooking Fire – Class F/K

 

What Is Solid Fire?

The most obvious solid fuels are wood, cloth, fabric, cotton, plastics and so on.

 

Fire Extinguishing: Solid Fire is extinguished by DCP (Dry Chemical), CO2 (Carbon-dioxide) and (H2O) water.

 

What-Is-Solid-Fire

 

 

What Is Liquid Fire?

Liquid materials fire is called class “B” type fire. The flammable liquids are bunker fuel, lubricating oil, diesel oil, kerosene, liquid chemical, oil-based paints, and their solvents, etc.

 

Fire Extinguishing: Liquid Fire is extinguished by Foam type fire extinguisher.

 

What-Is-Liquid-Fire

 

 

What Is Gas Fire?

The heat of the earth and the pressure from the weight of rocks transformed some of the organic matter into the natural gas. Natural gas is made up of a mixture of hydrocarbons.

 

The main hydrocarbon in natural gas is methane, but there is a small amount of ethane, propane, and butane, etc.

 

From this sort of gases, if any fire generates is called gases fire. This kind of fire is under class “C” type of fire.

 

Fire Extinguishing: Gas fire usually extinguished by using Sand, Soil, DCP, and Foam type fire extinguisher, etc.

 

What-Is-Gas-Fire

 

 

What Is Metal Fire?

Metal Fires consist of combustible metals such as Magnesium, Potassium, Titanium, and Zirconium.

Fire Extinguishing: This type of fire extinguisher used by Graphite power, Solid and Sand.

 

What-Is-Metal-Fire

 

 

What Is Electrical Fire?

Electrical Fires are fires involving probably energized electrical instrumentation.

 

Fire Extinguishing: Water is dangerous to use in this type of fire. Co2 is better to extinguish this fire.

 

What-Is-Electrical-Fire

 

 

What Is Cooking Fire?

Fires that involve cooking oils or fats are designed “Class K” under the American system, and “Class F” under the European/Australasian system.

 

Fire Extinguishing: Wet chemical fire extinguishers may also have hoods over them that help extinguish the fire. And it is the only extinguishment item for F/K type fire.

 

What-Is-Cooking-Fire

 

 

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