Suppression of electric equipment if it energized, differs from measures of fire extinguishing of other objects. These features are connected with dangers, and importance to use safe funds for case of flammable materials. In what feature of fire extinguishing of electric equipment energized?
Nuances
Suppression of electric equipment if it is at the time of the fire energized, demands availability of certain skills and observance of security measures. At the same time it is important to consider such difficulties:
- During suppression it is necessary to consider features of the tushimy equipment, availability of oils and lubricant which can become ignition sources.
- If the equipment too big, it it is necessary to consider.
- It is also important to remember preparation of measures of protection in case of melting of isolation, emergence of smoke or rise of temperature.
- On time of suppression it is necessary to minimize as much as possible risk of situations when the flame can pass to the next objects.
- During fire elimination if at the same time there is hydrogen ignition, it is necessary to use the substances which are forcing out hydrogen. It is so possible to eliminate flame source. It will be most effective to use carbon dioxide and nitric fire extinguishers.
Any electric equipment needs to be deenergized before suppression. For this purpose it needs or to be disconnected from power supply, or to ground. If it is possible, then around it is necessary to arrange thermal insulation from other equipment or to prevent distribution of flame.
Important point: suppression of electric equipment is made from edges that the center. It is so possible to exclude distribution of flame.
Types of fire extinguishers
For suppression of the fires of a similar type it is necessary to take powder, carbon dioxide or air and foam types of fire extinguishers. In powder models the main extinguishing component is the mineral salt lowering temperature on surface and limiting access of oxygen to fire. The system differs in safety and efficiency.
In air and foam models active component is the foam which is formed in the mechanical ways. Similar means perfectly will be suitable for big rooms, hangars and warehouses.
Carbon dioxide models can be carried to gas, and at their use for blocking of fire from electric equipment carbonic acid moves under pressure. Before beginning fire prevention, it is necessary to move away strangers, and to carry out works only in masks. Plus of this method consists in the low temperature of the active extinguishing component and also lack of mechanical influences.
Instead of the conclusion
It should be taken into account that to extinguish electric equipment, be it household or large-scale, production, follows after it is completely disconnected from the power supply network. It is extremely important, however, if to make it for any reasons will not leave, it is necessary to use dry powder extinguishers as active agent of such fire extinguishers will not damage to wiring and the power supply network.