To fight each type of fire, fires are classified into different classes with a different extinguisher. An untrained person is expected to look at the fire, evaluate its class, decide on the appropriate fire fighting equipment and then proceed to fight the fire. This can cause confusion, waste time and be extremely dangerous, at the time of crisis. If a class a extinguisher, which is water based, is used on an electrical fire, it can lead to instant electrocution. The oil will float on the water and the fire will instantly spread, if a class a extinguisher is used on an oil/petrol based fire . If a class b/c extinguisher is used on a class a fire, it will have no effect whatsoever. The ceasefire abc extinguisher actually operates on all classes of fire which includes an agent more powerful than the agents normally used in other fire extinguishers, which is applicable on all classes of fire, making it ideal for zones not restricted by bis norms.
