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Where is the suspended ultra-fine dry powder not applicable

2022-01-16 09:48:05
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Hanging superfine dry powder is a kind of dry powder gas fire extinguishing product, which has strong fire extinguishing performance and the advantages of easy installation, maintenance and replacement. It is widely praised in the gas fire extinguishing market. So this article will elaborate on which manufacturers the suspended ultra-fine dry powder is applicable to and does not apply to. In the subsequent purchase, you can also clearly judge whether you need to install fire-extinguishing equipment in the scene and whether you need to use the suspended ultra-fine dry powder.


According to GB 50347-2004 [code for design of dry powder fire extinguishing systems], dry powder fire extinguishing devices can be used to extinguish the following fires: gas fires in which the gas source can be cut off before extinguishing; Flammable, combustible liquid and fusible solid fires; Combustible solid surface fire; Live equipment fire. Looking at whether this is very winding, I still don't know what is suitable for. Now let's talk about the specific places.


Applicable places of suspended ultra-fine dry powder fire extinguishing device:


The suspended super dry powder fire extinguishing device is commonly used in pipe gallery. Many people don't know where the others are used. Let's take a look.


Oil and gas boiler room and diesel generator room; Fuel oil immersed power transformer; Fuel filled high-voltage capacitor and multi oil switch room; Control room, main electrical room and electrical room with an area ≥ 140 ㎡; Cable tunnels (galleries) in the plant, cable tunnels (galleries) connecting the general step-down substation (or other substations) outside the plant, and cable interlayer;


Boiler room burner, main oil tank, oil purifier, BFPT oil tank, oil storage tank; Hydro generator, oil tank room and oil immersed transformer room of hydropower station; Natural gas stations and gas injection stations, gas transmission pipelines, oil pipelines, oil wells, natural gas wells; Alcohol storage tank;




And class A and class B dangerous goods production workshops and warehouses; Packing cartons, tobacco and other class C warehouses; Timber farms, paper mills, printing plants, cotton processing plants, tape factories; Urban underground cable tunnel, municipal traffic tunnel; High and low voltage substations along the railway; Diesel locomotives and electric locomotives for railway transportation; Engines of various motor vehicles.


The suspended ultra-fine dry powder fire extinguishing device is not suitable for places:


Crowded places; Places of precision instruments or equipment; And nitrocellulose, explosives and other chemical substances and strong oxidants that can be oxidized rapidly without air.


These are the applicable and unsuitable manufacturers of suspended ultra-fine dry powder. I believe you can clearly judge whether the manufacturers you need can use suspended ultra-fine dry powder after reading it.