What are Class A and B fires?

What are Class A and B fires?

There are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering.

What are the 4 classifications of fires?

Types of Fires

• Class A Fires. involve common combustibles such as wood, paper, cloth, rubber, trash and plastics.
• Class B Fires. involve flammable liquids, solvents, oil, gasoline, paints, lacquers and other oil-based products.
• Class C Fires.
• Class D Fires.
• Class K Fires.

What class is electrical fire UK?

Class E Fire
Class E Fire Class E fires are fuelled by electrical appliances such as TVs, computers and hair dryers. The appropriate extinguishers used to tackle a class E fire include CO2 gas or a dry powder extinguisher.

What is fire and its classification?

Classes of fire Class A – fires involving solid materials such as wood, paper or textiles. Class B – fires involving flammable liquids such as petrol, diesel or oils. Class C – fires involving gases. Class D – fires involving metals. Class E – fires involving live electrical apparatus. (

Which one is a Class B fire?

In fire classes, a Class B fire is a fire in flammable liquids or flammable gases, petroleum greases, tars, oils, oil-based paints, solvents, lacquers, or alcohols. For example, propane, natural gas, gasoline and kerosene fires are types of Class B fires.

Which two types of fire extinguishers should you never use on an electrical fire?

Water fire extinguishers have a class A rating and are safe for use on wood, paper and fabric fires. Water fire extinguishers are NOT suitable for electrical fires as water is a conductor and you are at risk of electrocution if used on this type of fire.

What are 4 ways to extinguish a fire?

Control measure knowledge

• The fire tetrahedron identifies the four components needed for burning to take place.
• All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire.
• Cooling.

What are the five classifications of fire?

Classifications Of Fire. Fires are classified by the British Standard EN 2:1992 Classification of Fires. However, for all the practical purposes, there are five main classes of the fire – A, B, C, D, and F, plus fires involving the electrical equipment.

What are the different types of fire?

The types of fire produced depend upon ignition technique and direction of the wind. These different types of fire are used in different areas of the burn depending on the conditions and objectives. The different types of fire include backfire, flank fire and head fire.

What is a fire hazard class?

Fire hazard classification. The hazard class (LH, OH, HH) to which sprinkler system is to be designed, will determine the characteristics of the fire sprinkler installation in regards of specification of water supply, number of fire pumps, number of sprinklers etc.