Advice 1: What fire extinguishers to put out electrical installations

Safety rules forbid to produce extinguishing fires in electrical installations with water or foam mass. In this regard, we have developed a special set of tools to extinguish fires of a certain specification.
Carbon dioxide fire extinguishers
Extinguishing fires in electrical installations is complicated by a number of factors attendant to the fire. First, the presence of high-voltage-carrying parts, which makes impossible use of means of fire extinguishing substance which can conduct electric current. The second factor hindering the fire the presence of fire cable insulation. Cable rubber and polyvinyl chloride burn at very high temperatures and can self-ignite even after the flames downed. The question of what type of fire extinguisher to use on fires in electrical installations, should be considered taking into account the features and current state of the electrical network.

Foam and water fire extinguishers

Fire extinguishers OV, TOU, ORP applicable for extinguishing fires in electrical installations are not under tension. Permission to use water and foam extinguishers can only be given on the basis of an application Manager of power grid, on which the fire occurred, about the stress with the presence of a visible gap in the switching device that feeds this site. If you are using water and foam extinguishers should direct the jet of extinguishing agent directly at the source of fire, rather than trying to extinguish the flames. The fire extinguishers are effective for containment of the fire from a distance of 1-2 meters.

Carbon dioxide fire extinguishers

From a series of gas fire extinguishers to extinguish fires in electrical installations, under voltage, common carbon dioxide extinguishers of a series of OU. Their main advantage - low temperature of the jet of extinguishing agent to effectively knock down the flames and repair the ignition of non-ferrous metals. Carbon dioxide fire extinguishers require careful adherence to safety when using them. They do not try to extinguish a fire in closed premises in order to avoid poisoning, also do not touch unprotected parts of the body to the bell, having a very low temperature.

Powder extinguishers

Powder extinguishers are most often used as the main means of fire protection in electrical installations. They effectively localize the source of fire and bring down the flames. Fire-extinguishing component in them - an inert powder which prevents access of oxygen in the hearth burning. Powder extinguishers that are marked OP, is indispensable for extinguishing cable insulation: they cover the burning material in a dense layer and prevent re-ignition. Powder extinguishers can be used in electric installations under voltage.

Advice 2: What kind of fire extinguisher that put out

A fire extinguisher is an essential element in the system of fire safety. For liquidation of fires, it is important to understand the types of fire extinguishers and principles of action.
A fire extinguisher
Fire is unpredictable elements that can cause damage on a catastrophic scale. That is why it is so important to eliminate starting a fire using fire-fighting equipment. Modern industry involves the production of a wide variety of fire extinguishers, which differ not only in weight and form, but in purpose: for different types of fires and different areas of the fire.

Water fire extinguishers

To fire extinguishers of this type include the means of fire safety, designed to neutralize the fire using jets of water under high pressure. Water can be supplied in the form of a strong directed jets, and in the form of dispersed droplets.

Extinguishers of this type are designed to extinguish paper, cardboard, fabric, wood, plastic or trash. For extinguishing solid substances are used water fire extinguishers with a directed stream of water. Combustion of liquid substances is eliminated only melkorazmernaja jet to prevent splashing and to only those fire extinguishers, upon which the mark is added to the water supplementation.

If the fire extinguisher contains only water in its purest form, the major limitations for such fire-fighting equipment will be restrictions on extinguishing flammable liquids and electrical wiring.

Foam fire extinguishers

A means of neutralizing the fire in such fire extinguishers, foam is formed either by gas or by a chemical reaction. Foam blocks access to oxygen, thereby eliminating the fire. Fire extinguishers of the foam type are used to extinguish fire as solid substances and flammable liquids: oil, fuel, etc. in the squares no more than 1 sq m. usage restrictions to apply to the extinguishing of electrical wiring and metals, which by chemical reaction with water, emit oxygen, potassium, sodium.

Powder extinguishers

The basis for extinguishing a fire of such dry powder fire extinguisher are mineral salts with various additives. The powder fire extinguisher is versatile and can be used in case of fire of solid substances, and combustible liquids, and electrical lines energized, and gases under high pressure. The only limitation to the use of powder – burning alkaline earth metals, burning without oxygen. The disadvantage of powder fire extinguishers is the need to work in protective masks because the air is very dusty, and very dirty room, covered with a layer of powder used.

Carbon dioxide gas fire extinguishers

Carbon dioxide extinguishes fire effectively on surfaces of any type and can be used to extinguish fires of solid, liquid, gaseous substances and electrical wiring. The fire extinguisher leaves no residue, but is limited in use due to the inefficiency of large areas. In addition, the accumulation of a large amount of carbon dioxide in the room of fire can lead to poisoning, so it is very important after the fire, immediately move to fresh air.
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