A fire at the construction site can lead to severe or even fatalities injuries, major structural damage, destruction of machinery, equipment or materials, and delay in project completion. For a fire to start, 3 things are needed:

source of ignition at construction sites such as electrical equipment, welding or grinding activity; source of fuel such as flammable liquids, liquefied petroleum gas, acetylene; oxygen which is the source of combustion.

What are the precaution measures should be taken in mitigating hazard and risk of fire or explosion caused by above mentioned ?