Types & Classification of Fire and Fire Extinguisher in Hindi

Let Us See How Fire Occur

• • • There must be 3 elements present.
    • These elements include Oxygen, Heat and Fuel.
    • When all 3 of these elements come together it creates a chemical reaction which
      causes fire.
    • In order to put out a fire, you need to remove one or more of these elements.

1. 1. Class A

   2. Class B

   3. Class C

   4. Class D

   5. Class E

   6. Class F

• Class A Fire –

If a fire occurs in a solid material, then we call it class A fire such as wood, Paper, Textiles, Fiber, Coal, Rubber, Plastic etc.

• Class B Fire –

If a fire occurs in a flammable liquids, then we call it class B fire such as petrol, diesel, oil, paints etc.

• • Class C Fire –

 If a fire occurs in flammable gases, then we call it class C fire such as Methane, Propane, and Butane etc.

• • Class D Fire –

 If a fire occurs in metals due to overheat, then we call it class D fire such as aluminum, magnesium, etc.

• • Class E Fire –

If a fire occurs in electrically energized equipment’s, then we call it class E fire or Electrical Fire.

Note:-Fires that involve electrical energized equipments are designated “class C” under the

American system and “class E” under the European/Australian Systems.

• • Class F Fire –

If a fire occurs in cooking oils or in fats then it is called Class F Fire, we can simply say as a Kitchen

Fire.

Note :- Fires that involve cooking oils or fats are designated “class K” under the American system and “class F” under the European/Australian Systems.

I hope… it is cleared now about types of fire so let’s talk about types of fire extinguisher

Different Fire Extinguisher Types and Uses

As you review the fire extinguisher guide below, it’s important to understand two things.

• • First, different types of fire extinguishers are designed to fight a different classes or ratings of fire.
  • Second, each fire extinguisher type works by removing particular element from the fire equation.

Water type fire extinguishers –

• Work by attacking the heat element of the fire equation. Water extinguishers should only be used on class ( A ) fires that involve ordinary materials like paper, wood, fiber and coal.

Foam fire extinguishers –

• • Work by removing the heat and oxygen elements of the fire equation. This type of fire extinguisher should only be used on class ( A ) and ( B ) fires and should never be used on class ( E ) electrical fires due to electrocution hazard.

CO2 or Carbon Dioxide fire extinguishers

• • Work by attacking the oxygen in a fire. They also work to remove heat due to a very cold discharge. CO2 fire extinguishers should only be used on class (C) electrical fires and class (B) combustible liquid fire.

DCP ( Dry chemical Powder fire extinguishers )

•  Primarily work by interrupting the chemical reaction of a fire. A very versatile fire extinguisher, these are rated to be effective on class A, B and C fires. Since A-B-C fires are the most common, dry chemical fire extinguishers are the most widely used in home fire situations.

Wet chemical fire extinguishers –

•  Work by first removing the heat element of a fire and then preventing re-ignition by creating a barrier between the oxygen and fuel elements. This classification of fire extinguisher was specifically developed for  class ( F ) fires that involve cooking oils and fats. Most often these fires occur in commercial restaurants and cafeteria settings.

Dry powder fire extinguishers –

•  Work by separating the fuel from the oxygen of a fire. These are only for use in class ( D ) fires that involve combustible metals like magnesium, titanium, potassium and sodium. The powder agent used may be powdered graphite, granular sodium chloride or copper based, all of which are effective at separating the fuel (the ignited combustible metal) from the oxygen.

 Which fire extinguisher classification is right for you?

• As you can see, each class of fire requires a certain type of fire extinguisher to fight it. For most people, a dry chemical A-B-C rated fire extinguisher is going to be the best unit to have around the, car or workplace.

• For others in a more specialized environment, a different type of fire extinguisher will be needed for effective firefighting.

For Download PDF of Types of Fire and Fire Extinguisher Click Here

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