Class B fires involve flammable and combustible liquids such as gasoline, alcohol, oil-based paints, lacquers . ... In fact, if the only fuel burning is the leaking gas, the best method for extinguishing the fire is to shut off the fuel supply.
Which fire is Class B fire?
Class B fire refers to a fire involving flammable liquids such as petroleum (gasoline, kerosene, petrol, diesel, octane, etc.), paint, alcohol, solvent, oil and tar, etc. that normally do not leave any embers or residues (or very low amounts of residues).
What does a Class B fire involves?
Class B – Fires involving flammable liquids, gases, oil, paints, or lacquer .
What is classed as a category B fire?
Class B – Class B fires occur in environments where flammable liquids are found , such as paraffin, petrol and oil.
What do Class C fires include?
The Class C fire is defined as a fire that uses electrical components and/or energized equipment as its fuel source . Electrical fires are often fueled by motors, appliances, and electronic transformers. Electrical fires are common in industries that deal with energy or make use of heavy electrically-powered equipment.
What type of fire is put out by a 5 B?
“B” LIQUIDS
Fire extinguishers with a Class B rating are effective against flammable liquid fires . These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited. Two commonly used chemicals are effective in fighting these types of fires.
What are the 4 types of fires?
What are the fire safety rules? 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.
What is Type D fire?
What is a Class D fire? A Class D fire is characterised by the presence of burning metals . Only certain metals are flammable and examples of combustible metals include sodium, potassium, uranium, lithium, plutonium and calcium, with the most common Class D fires involve magnesium and titanium.
What does ABC mean in fire extinguisher?
Dry Chemical Extinguishers come in a variety of types. You may see them labeled: • “DC” short for “dry chem” • “ABC” indicating that they are designed to extinguish class A,B,and C fires , or • “BC” indicating that they are designed to extinguish class B and C fires.
What are the 5 classifications of fire?
Fire is divided into five classes ( A, B, C, D, and K ) that are primarily based on the fuel that is burning. This classification system helps to assess hazards and determine the most effective type of extinguishing agent.
How do you fight a Class B fire?
To extinguish a Class B fire, you want to cut off the oxygen . You can use carbon dioxide gas to dilute the oxygen available and stop the burning. Smothering the fire with bicarbonate (baking soda) or potassium carbonate will also work.
Can Class D fires be extinguished with water?
Water is extremely ineffective at extinguishing this type of fire, and you may, in fact, spread the fire if you try to use water on it. Never use water to extinguish an electrical fire.
What is a Class B material?
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. ... Some plastics are also Class B fire materials.
What is Class C fires?
Class C fires involve electrical equipment , such as appliances, wiring, circuit breakers and outlets. Never use water to extinguish class C fires – the risk of electrical shock is far too great! Class C extinguishers do not have a numerical rating. The C classification means the extinguishing agent is non-conductive.
What is an example of a Class C fire?
A Class C fire is the burning of flammable gases, which can be very dangerous and highly explosive. These include gases such as butane and propane in gas canisters , which you’d expect to find in certain building trades. You will also find these with gas camping stoves and gas barbeques.
What is the most difficult fire to put out?
Grease fires are among the most difficult type of fire to put out. Attempting to extinguish it with water can make the fire grow, as water and oil do not mix. Grease fires are often associated with kitchen fires and they occur when the oil gets too hot when cooking.
