Fire extinguisher OU-5: purpose, features of application, technical characteristics
Currently, one of the mostcommon, convenient and highly effective extinguishing devices for fire fires is the OU-5 fire extinguisher. A model is used to extinguish materials, the ignition of which occurs with the access of oxygen, some flammable liquid substances, as well as electrical installations operating under high voltage up to 10 thousand volts.
Due to their compact size and ease of use, the OU-5 fire extinguisher is often used in museums, archives, art galleries, and other areas where easily combustible materials are stored.
Appointment
Fire extinguishers OU-5 are indispensable for putting out papers,combustible gaseous substances, flammable liquids, electronics and electrical equipment. At the same time, the use of devices of this type proves to be ineffective when it is necessary to suppress foci of fire in case of ignition of solid materials, as well as substances capable of supporting combustion in the absence of access to oxygen.
Fire extinguisher OU-5: characteristics
The model belongs to the category of high-pressure extinguishers. The device is charged with a liquid mixture based on carbon dioxide, which is released due to saturated vapor pressure.
Suppression of fires by a fire extinguisherbased on the cooling of objects and substances that are in the combustion zone. At the same time, the environment is diluted with inert, non-flammable substances of high concentration, which create the conditions for stopping the combustion reaction.
Fire extinguishers OU-5 specifications have the following:
- weight - 15 kg;
- time of release of inert incombustible substances - 8 seconds;
- the length of the jet is 3 meters;
- Operating temperature - in the range from 5 to 50aboutFROM;
- extinguishing agent - carbon dioxide;
- service life is more than 5 years with annual maintenance and mass charge control.
Application features
The OU-5 fire extinguisher is powered byretrieval of a retaining sealed check. The socket of the device is directed towards the source of ignition. In this case, it is necessary to avoid contact of exposed skin areas with the active substance, since when it ejects its temperature drops to a dangerous limit of 60 to 70about below zero.
The fire extinguisher is activated by releasestarting, locking device - the lever, which must be opened before failure. With the same lever, you can interrupt or completely stop the supply of carbon dioxide.
General Terms of Use
Before using OU-5 fire extinguisher, it is necessary to determine the type of fire in order to understand how suitable and effective this model will be under the existing conditions.
Suppress foci of inflammation is necessary,directing the bell of the fire extinguisher from the windward side, gradually shifting into the depths of the flame. When extinguishing liquid flammable substances, the bell should first be directed to the leading edge of the hearth, and not to the open flame, moving to the center as the fire is suppressed.
Inflamed vertical surfaces, alsoas well as pouring from the height of a flammable liquid, it is necessary to extinguish in the direction from top to bottom. Whenever possible, it is better to use several devices of this type at the same time.
Do not put the fire extinguisher OU-5 (3), which makes it possible to extinguish the electronics and burning electrical installations, to electrical appliances at a distance closer to the model indicated on the label.
When extinguishing a fire, it must be ensured that the flame does not flash again, and in no case turn to the fire with your back. Using a fire extinguisher, you should send it to recharge.
The OU-5 model is subject to regular, periodicCheck for tightness, which should be performed at least once every six months. Verification is also subject to weight - it must comply with the standards specified in the passport data of this model of fire extinguisher.
If the weight of the balloon is less when measuredthe specified parameters according to the technical characteristics or the lifetime of the cylinder is exceeded, the fire extinguisher must be sent for maintenance. If necessary, it is recharged by a specialist of the maintenance station.
