Fire And Safety Blogs

Water Type (CO2 Gas Expelled) Construction:- T hese extinguishers are identical in appearance and construction to soda acid type of extinguishers. The only exception is that instead of acid phial these extinguishers are provided with CO2 cartridge which is screwed to the cap of the extinguisher. The co2 cartridge has a sealing disc. The plunger has a piercing type nail attached to it in such a way that it will puncture the sealing disc of co2 cartridge when pushed down. A syphon tube is fitted inside so that it can be used in upright position.

First Aid For Burns

Fire Extinguishing Modes Fire can be extinguished by employing one or more of the following techniques. Cooling:-  This means removal of heat this can be achieved by the use of water. Generally 'A' class fire can be extinguished by this method. Starvation:- Removal of fuel. this can be achieved by cutting out the fuel supply to the fire. This can be achieved by physical removal of fuel e.g. pumping out the fuel from the tank on fire or isolating the supply valve etc. Smothering:- Removal of oxygen (air) or diluting the same to blow the minimum requirement. This can be achieved by by applying an inert gas such as CO2 or nitrogen or dry chemical powder or halons etc. Chain breaking mechanism: - This can be achieved by the application of halogenated hydrocarbons or dry chemical powder which distribute the chain reaction between free free radicals of fuel and atmospheric air.

Definitions of few terms related to fire: 1- Fire Ball:- A spherical mass of flame that sometimes occurs when a large quantity of vaporized flammable liquid suddenly catches fire 2- Fire Bat:-  A Canvas pedal used to beat out grass fires 3:- Fire Beater:-  A birch broom or piece of rubber or wire netting attached to a long handle, used to beat out grass and brush fires. This is a kind of fire bat. 4:- Fire Blanket:-  A non combustible cloth of asbestos or one treated with fire retardant chemicals, used to wrap around clothing fire victims to smother the flames. 5:- Fire Brand:-  Hot, flaming or glowing solids,  generally of cellulosic materials, Rose by strong convective currents and carried by high winds in large scale fires. Fire brands are the most common sources of spot fires. 6:- Fire Break:- (A) an open space between buildings, stocks of of combustible materials, stored goods, and the like, serving to interrupt the spread of Fire. (B) a natural barrier to fire spread, or cleare

Chemistry of combustion Introduction:- The relation between man and fire is very old. fire has been of great assistance to the mankind. it is one of the five basic elements of human body. If fire is taken away the life is no more. Fire is an essential element for survival provided it is is under control, neither less not more. At the same time fire becomes destructive when it goes out of control. It is is this aspect of fire witch is is discussed in the book 2.0 fire triangle Fire is an external sign of chemical reaction, usually the combination of  carbon and or hydrogen with  oxygen, resulting in the release of energy in the form of heat, light and sound. Hence there are three basic elements required for fire. These are 1. Presence of combustible substance (fuel) 2. A source of ignition (heat) 3. The presence of oxygen (Air) These three elements can be e represented by by a triangle popularly known as " fire triangle ". 3.0 fire tetrahedron or fire square Besides three basi