Information about the Fire Triangle PDF

ASSIGNMENT 8
8.1
Fire is a sort of chemical response that includes rapid oxidation of ignitable fills (substances)
and subsequent discharge of heat and light.
Fire security alludes to the preparation and plan of framework pointed toward decreasing the
threat of fire or preventing the spread of fire during a fire. Fire safety incorporates the
utilization of noncombustible structure materials, preventive measures, safe working methods,
fire safety training, fire assurance apparel, and that's only the tip of the iceberg. The norm of
the OSHA fire industry is 29 CFR 1910. The National Fire Protection Agency (NFPA) additionally
has various laws pointed toward guaranteeing fire safety in the work environment.
Fire safety includes the following:
Be sure to comply with local building codes. Ensure that the provisions of the fire codes
(presence, stairs, signs and symbols, etc.) are followed.
• Consistence with electrical safety codes
• Fire risk assessment when repairing a building, equipment, or process
• Appropriate capacity of combustible and risky materials
• Establishment of fire identification and programmed or self-loader alarms
• Design of suitable types of fire extinguishers and pipes
• Train users on firefighting, fire alarms, emergency exits and integration procedures
• Conduct regular emergency fire tests by contacting your local fire department
Fire safety is a set of strategies pointed at minimizing fire damage. Fire safety measures
incorporate those planned to forestall uncontrolled fire, just as those used to restrict the turn
of events and outcomes of a fire.
Fire safety measures incorporate those prearranged during construction or utilized on existing
structures, as well as those instructed to residents. Fire safety dangers are repeatedly
mentioned as fire hazards that comprise circumstances that increase the risk of fire or that may
delay fire escape.
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Figure 1: Fire Triangle Figure 2: Fire Tetrahedron

Fire safety is often a part of building safety. Those who inspect fire code breakout structures
and go to schools to teach children about fire safety topics are members of the fire department
known as Fire Protection. The Chief Fire Officer or Fire Protection Officer will usually train
beginners to the Fire Brigade and can inspect or make drawings. In 2000 the Fire Safety
Advisory Board was established to change the fire law to simplify, amend and consolidate
existing laws. It will provide a fire risk-based approach that considers effective, efficient fire and
rescue authorization and other legal requirements.
Fire Safety Equipment and Devices
• Smoke indicators and heat (usually on the ceiling)
• Fire and emergency alarms (unlocked with emergency buttons or handles)
• Fire and emergency lights (red)
• Water sprinklers (usually on the ceiling)
• Fire extinguishers (different types of fire class)
• Water pipes have a pipe attached
• Fire blanket (to wrap a burnt person or cover fire)
• Emergency exit signs and lights
• Fire emergencies and emergencies
• Stairs of fire and emergency and evacuation
• Fire station (meeting place)
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8.2
Three things to be require for the fire to take place. As shown in the Figure
Figure 3: Fire Triangle
If any of these elements is absent, the fire cannot initiate as it prevent the fire from starting.
The fire can be prevented by avoiding these three combinations.
Sources of fire
In the workplace, below mentioned are the potential sources of fire:
 Nude flames - from smokers, cooking utensils, heating equipment
 External sparks - from welding, grinding iron, touch tools, electric shifting gears.
 Internal spark - from electrical appliances (incorrect and normal), appliances, lights
 Hot spots – sources are light, cooking, hot items, airtight appliances etc
 Dry electricity - causing high energy sparks from separating substances like
disintegration of plastic, pouring of highly flammable liquids etc.
Figure 4: Sources of Ignition in recent years
Classification of fire
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Classifications of fire are according to British Standard EN 2: 1992 Fire Classes.
Class A - Fires involving combustible materials that are solid materials i.e. furniture, cardboard,
textiles, wood, paper, and plastics.
Category B - Fires involving flammable materials that are in liquids or solids such as paint,
grease or oil. Further divided into:
Class B1 - Fires consisting of soluble liquids such as methanol.
Category B2 - Fires involving water insoluble liquids, like petrol and oil.
Category C - Fires involving electricity.
Class D - Fires involving metals like magnesium or aluminum.
Class F - Fires containing oil for cooking or oil in large restaurants or cafes.
The spread of fire
The heat is transmitted through fire in many ways, there is a need to understand these in order
to prevent, control, and extinguish the flames.
Convection: The hot air becomes slightly compacted and then rises, absorbing fresh cold air to
stimulate more oxygen-burning fire. Heat is transferred to a surface with sufficient strength to
burn.
Conduction: conduction is a process in which heat is transmitted to a material that is strong
enough to dissolve or disintegrate the material and to ignite flammable materials that combine
or come close to the hot part such as metals.
Figure 5: Principal of fire spread
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