What is Fire hazards| आग के खतरे क्या हैं
What is fire hazards ? Using damage electrical cable Cooking left unattended Unsafe storage of flammable substances Overflowing of rubbish in bins Smoking in dangerous area Hot work like welding or grinding Fire door wedged open or ill fitting Corridors and staircases used for storage Final exits blocked or locked Cause of fire ? Electrical fire Smoking Naked flame Electrical sparks Spontaneous ignition Chemical reaction Deliberation ignition Metal friction Cause of spread of fire ? Convection - movement of hotter gases up through the air Conduction - movement of heat through materials Radiation - transfer of heat through the air (heat waves) Direct burning - combustible materials in contact with naked flame Triangle of fire ? 1. Oxygen (O2) Air Air supplies O2 Cylinder 2. Heat (ignition source) Hot works Naked flame Electrical sparks Metal friction 3. Fuel Pape