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A versatile option, powder fire extinguisher use is suitable on Class A (flammable solids), B (flammable liquids) and C (flammable gases) fires. They can also be used on electrical fires involving electrical equipment under 1000v, without causing a risk of electric shock.Dry powder fire extinguishers labels are blue.
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For outdoor environments where various fire type risks are present, such as fuel, vehicle, and chemical, a dry powder fire extinguisher is a very good choice. Such environments include the following:
Large workshops
Big commercial boiler rooms
Garage forecourts
Fuel tankers
Flammable liquid storage facilities
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Safety Note: You should NEVER use a dry powder fire extinguisher in any type of enclosed area
To safely use a dry powder fire extinguisher, use the following steps:
Remove the safety pin and position yourself at a safe distance
Point towards the base of the fire and then use rapid backward and forward movements with the jet
In the case of an electrical fire, check if it is safe to switch the power off and do so if possible, then direct the jet of powder so that it is aimed right at the fire itself