Fire extinguishing systems with powder are installed in places where there is an increased risk of fire such as rooms or open spaces in the presence of flammable liquids and gases, chemicals or high voltage electrical installations. According to the standards these are so called high-risk areas where conventional methods of fire protection do not provide adequate security. Dry chemical, used in automatic fire systems is an effective and quick extinguishing agent. When sprayed directly on the fire they cause almost immediate extinguishing effect.
Mechanism of fire extinguishing
Main extinguishing effect occurs as a result from chemical intervention on the chain reaction in the combustion process. However, fire extinguishing with powder goes through several stages. Initially the extinguishing agent released in the burning zone forms extinguishing cloud and causes choking effect, displacing oxygen from the burning area. Then the chemical reaction does not allow the free radicals formed in the combustion process to maintain the combustion reaction. Thus interrupt self-sustaining chain reaction while limiting the quantity of heat which is emitted during combustion. The fire extinguishing is fast and without the possibility of re-ignition .
Powder extinguishing systems are conventional BC type suitable for efficient fire suppression in open areas and fires Class B (flammable liquids and gases) and Class C (active electrical equipment). Extinguishing powder is composed of harmless inorganic salts and water-resistant agents. Dry chemical agent is non-toxic, electrically non-conductive and is easy to clean after discharge, requiring only suction or sweeping. Although the components of the fire extinguishing powder are non-toxic, the discharge of a large amount of dust may cause difficulty in breathing during and after release and also to significantly reduce the visibility in the room.
Quality and reliability of installed systems
The systems installed by our company meet the requirements of the standard EN 12845 and comply with all applicable local regulations. The equipment is manufactured by the leading global companies and has the necessary certificates of compliance. The installations are performed by trained professionals. Our company is certified for maintenance and servicing of fire protection systems issued by the Ministry of Interior.
