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顯示從 8月, 2020 起發佈的文章

What type of fire extinguisher should be used for electrical fire

The dry powder fire extinguisher is equipped with dry powder fire extinguishing agent such as ammonium phosphate salt. This dry powder fire extinguishing agent is easy to flow and re-drying. It consists of inorganic salts and crushed and dried additives, which can effectively save the first fire. Carbon dioxide gas can be excluded from the air and surrounded on the surface of the burning object or distributed in a more closed space, reducing the oxygen concentration around the combustibles or in the protective space, causing suffocation and extinguishing. In addition, when carbon dioxide is ejected from the storage container, it will quickly vaporize from liquid to gas, and absorb part of the heat from the surroundings to play a cooling role. According to GB 501402005 'Code for Design of Configuration of Fire Extinguishers in Buildings', electrical fires belong to the selection of Class E fires and Class E fire extinguishers: the source of Class E fires should choose ammonium p...

Guangdong Shangbang boss chair leather computer chair home executive chair can lie with massage foot

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