What are dry powder fire extinguishers used for?
Dry powder fire extinguishers extinguish the fire primarily by interrupting the chemical reaction taking place and cutting off the oxygen supply. They can be used on fires involving solid combustibles, flammable liquids and electricity.
What type of fire is a powder extinguisher used for?
Powder extinguishers are a good multi-purpose fire extinguisher because they can be used on Class A, B and C fires. They can also be used on fires involving electrical equipment however, they do not cool the fire so it can re-ignite.
When would you use a powder fire extinguisher?
Powder fire extinguishers are best suited to businesses using chemical processes or where welding and flame cutting takes place. They can be used on garage forecourts and at premises with large, commercial boiler rooms. Specialist powder extinguishers are also available for use on flammable metals only.
Which two types of fires can a dry chemical powder extinguisher be used for?
What fires can dry chemical powder fire extinguishers be used on?
- Class A Fires – paper, cardboard, wood, fabrics, people etc.
- Class B Fires – flammable liquid fires, petrol, deisel, oil etc.
- Class E Fires – electrical fires, computers, photocopiers, switchboards etc.
What is the difference between a dry chemical and a dry powder fire extinguisher?
Dry powder extinguishers are similar to dry chemical extinguishers except that they extinguish the fire by separating the fuel from the oxygen element or by removing the heat element of the fire triangle. Dry powder extinguishers are for Class D or combustible metal fires ONLY.
Can you use dry powder on electrical fires?
Dry Powder is a highly versatile medium for tackling most types of fire. It is extremely effective with electrical hazards, flammable liquids and gases, which making it ideal for vehicle fires. Carbon Dioxide fire extinguishers are ideal for electrical fires or flammable liquid fires.