Types of Fire and Fire Fighting Methods

Classes of  Fire

                                    “A” Class Fire: solid fuels, e.g. wood, paper, cotton.

                                    “B” Class Fire: liquid fuels.  e.g. petrol, diesel, kerosene.

                                    “C” Class Fire: gas fuels. e.g.  lpg, cng .

                                    “D” Class Fire : combustible metals.

                                                e.g. sodium , phosphorus , magnesium. (all used in crackers , Mach sticks).  

“E” Class Fire : live electrical equipment’s .

                   e.g. switch board, transformer.

“K” Class Fire : kitchen oil.

                  e.g. lpg, kerosene.

FIRE EXTINGUISHING METHODS

COOLING:

                     Removal of HEAT. (by water. generally, for Class “A” )

STARVATION:

                      Removal of FUEL (by cutting fuel supply)

SMOOTHERING:

                      Removal of OXYGEN. (by using CO2 or DCP- dry chemical powder)

CHAIN BREAKING MECHANISM:

                                       break the chain. (by DCP)

                    or            (BLANKETING)