Firefighting procedures
1.8 Firefighting procedures Fire spreads fast. However, how quickly it is detected and controlled determines the extent of damage it causes. Once fire is detected, raise the fire alarm; act fast to put it out. If it is big, evacuate the building and call the fire brigade. There are three classes of fire: Electrical, chemical and solid. Each class is controlled using appropriate firefighting equipment. How to Control Electric Fires Electric fires involve the burning of insulation of the conductors. The fire may spread to other combustible materials if not put out in good time. Some fundamental steps for fighting electric fires are: 1. Switch off the main electrical power supply. 2. Spray the burning material using carbon dioxide or dry powder extinguishers. REMEMBER: Water and foam extinguishers should never be used on electric fires. How to Control Chemical Fires Burning oil or chemical fires are controlled by spraying them with foam, carbon dioxide or dry powder extinguishers. Sand ...