Fire Extinguishers safety training

M/s. Fire Rangers Mysore conducted at Mahadevpura site Fire Extinguishers safe operation training on 18Jan2018 . Training covered about the following topics :

TYPES OF FIRES :
Class A fires- Are ordinary combustible materials like burning paper, wood, rags, plastic etc.
Class B fires- Involve flammable or combustible liquids such as gasoline, oil, grease and paint.
Class C fires- Involve energized electrical equipment, such as office equipment, outlets, motors, power tools and heaters. Water is a particularly dangerous extinguishing medium for class C fires because of the risk of electrical shock.
Class D fires- Involve combustibles metals, such as magnesium, aluminum, potassium and sodium. These material burn at extremely high temperatures and will react violently with water, air and/or other chemicals. Class D fires are usually found only in industrial settings and should be extinguished with a dry powder chemical only.

FIRE EXTINGUISHER COMPONENTS :

• Carrying handle/operating lever
• Locking pin
• Pressure gauge (except for CO² extinguishers)
• Discharge nozzle or horn
• Instructional label
• Inspection tag

FIRE EXTINGUISHER OPERATION – P.A.S.S
P- Pull the safety pin, this will allow you to discharge the extinguisher.
A- Aim the extinguisher the base of the fire , this will allow you to hit the fuel.
S- Squeeze the top handle or lever, this will release the pressurized extinguishing agent.
S- Sweep the extinguisher hose from side to side until the fire is completely ou

TYPES OF FIRE EXTINGUISHERS

• Water Extinguishers- Are a convenient extinguishing agent but is only effective on Class A fires. The water cools the fuel thereby reducing the heat.
• Carbon Dioxide Extinguishers- Can be used on both Class B & C fires. It extinguishes primarily through a smothering action by establishing a cover between the fuel and the surrounding air.
• Dry Chemical Extinguishers- There are several different dry chemical agents. The most common of all is sodium bicarbonate, which is baking soda. There is also mono-ammonium phosphate, which is a multi-purpose agent can work on Class A, B & C fires.
• Dry Powder Extinguishers- Are designed to extinguish Class D fires, which are combustible metals such as, aluminum, magnesium, sodium, and potassium. Dry powder extinguishers are used on Class D fires only.

RULES TO FOLLOW :

• Before attempting to use an extinguisher, make sure all of the following apply:
• The building to be evacuated and the fire department called.
• The fire to be contained and not spread beyond its starting point.
• The exit should be clear
• Know what type of fuel is burning.
• The proper extinguisher is to be on hand