Which venues are unsuitable for suspended ultra-fine dry powder systems?

　　Hanging-type ultra-fine dry powder is a type of gas-based fire suppression product known for its powerful extinguishing performance, while also offering convenient features such as easy installation, maintenance, and replacement—making it highly acclaimed in the gas fire suppression market. Therefore, this article will delve into which manufacturers are suitable for using hanging-type ultra-fine dry powder systems, and which ones are not. This information will help you clearly identify the scenarios where installing such fire suppression equipment is necessary, ensuring you make an informed decision when making your next purchase.

　　According to GB 50347-2004, the "Code for Design of Dry Powder Fire Extinguishing Systems," dry powder fire extinguishing systems can be used to combat the following types of fires: gas fires where the gas supply can be shut off before firefighting; fires involving flammable and combustible liquids as well as meltable solids; surface fires on combustible solids; and electrical equipment fires. Doesn’t this sound a bit complicated? It still leaves you wondering exactly which scenarios these systems are suitable for. So, let’s now discuss specifically which types of locations they’re best suited for.

　　Suspension-type ultra-fine dry powder fire extinguishing systems are suitable for the following locations:

　　Suspension-type super dry powder fire extinguishing systems are most commonly used in pipe galleries. As for where else they’re applied, many people aren’t quite sure—let’s take a look below.

　　Boiler rooms fueled by oil or gas, and diesel generator rooms; oil-immersed power transformers containing combustible oils; high-voltage capacitors filled with combustible oil and multi-oil switchgear rooms; control rooms, main electrical rooms, and electrical rooms with an area of ≥140㎡; cable tunnels (or corridors) within the plant premises, as well as cable tunnels (or corridors) connecting the plant to the central step-down substation (or other substations), and cable galleries.

　　Boiler room burners, main oil tank, oil purifier, BFPT oil tank, and storage oil tank; hydropower station equipment such as hydro turbines, generator sets, oil tank rooms, and oil-immersed transformer rooms; natural gas compressor stations and gas injection stations, along with gas pipelines, oil pipelines, oil wells, and natural gas wells; alcohol storage tanks;

　　As well as Class A and Class B hazardous-material production workshops and warehouses; Class C warehouses for packaging cartons, tobacco, and other materials; lumber yards, paper mills, printing plants, cotton-processing facilities, and adhesive tape factories; urban underground cable tunnels and municipal traffic tunnels; high- and low-voltage substations along railway lines; internal-combustion and electric locomotives used in rail transportation; and engines from various motor vehicles.

　　Hanging-type ultra-fine dry powder fire suppression systems are not suitable for the following locations:

　　Places with high concentrations of people; areas housing precision instruments or equipment; and locations where chemically unstable substances like nitrocellulose and explosives—substances capable of rapid oxidation even in the absence of air—as well as strong oxidizers are stored or handled.

　　These are the manufacturers suitable and unsuitable for using suspended ultra-fine dry powder systems. After reviewing this information, I believe you’ll be able to clearly determine whether the manufacturer you need is compatible with suspended ultra-fine dry powder technology.