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What are the applications of colored steel plate box type substation shells in the power industry

source：www.lgbayir.cn  |  Release time：2025年08月05日
       The shell of the color steel plate box type substation is widely used in the power industry due to its lightweight, corrosion resistance, easy installation, and moderate cost, especially suitable for outdoor, temporary, or rapidly deployed power supply scenarios. The following will explain the specific application scenarios, advantages, and adaptation scenario characteristics:
1、 Terminal power supply for outdoor distribution network
1. Extension of urban distribution network
       In the distribution network of newly built residential areas, commercial districts, and industrial parks in cities, the casing of color steel plate box transformers can serve as a carrier for 10kV/0.4kV terminal substations, integrating transformers, high-voltage switchgear, and low-voltage distribution cabinets into one. They can be directly installed on outdoor green belts, roadsides, and other areas to quickly achieve distribution conversion from the high-voltage power grid to the user end. Its shell can resist wind, rain, sun, and dust, protect internal equipment from natural environmental erosion, and meet the requirements of urban environment for the cleanliness of equipment appearance.
2. Rural power grid renovation
      The distribution of power grids in rural areas is relatively scattered, and the construction conditions are relatively simple. The shell of the color steel plate box transformer is lightweight (usually more than 50% lighter than the concrete shell), easy to transport and lift, and can be installed in complex terrains such as fields and village entrances. At the same time, its good sealing and anti-corrosion properties (such as using galvanized color steel plate+spray treatment) can cope with rural humid, mosquito prone, acidic and alkaline soil environments, reducing equipment maintenance frequency.
2、 Temporary power supply and emergency support
1. Temporary power supply for the project
       In temporary projects such as construction, road construction, and mining, color steel plate box type substations can serve as temporary power supply hubs, quickly connecting to the power grid and supplying power to construction machinery and temporary camps. The modular design of the shell enables it to flexibly migrate with the progress of the project, and has strong impact resistance (the thickness of the color steel plate is usually 0.8-2mm, matched with the skeleton support), which can adapt to collisions and vibrations in complex environments on construction sites.
2. Emergency rescue power supply
       When natural disasters such as typhoons and earthquakes cause the original power grid to collapse, the color steel plate box transformer can be used as the shell of the emergency power station, combined with generators and energy storage equipment to form a temporary power supply system, providing electricity for key areas such as hospitals and residential resettlement sites. Its portability and fast assembly characteristics (some can be lifted as a whole) can shorten the response time of emergency power supply.
3、 Distribution requirements in special environments
1. Highly polluted or corrosive environments
       In environments with corrosive gases and salts such as chemical parks and coastal areas, the casing of box transformers made of anti-corrosion color steel plates (such as fluorocarbon coated color steel plates and stainless steel composite color steel plates) can effectively resist the erosion of corrosive media and extend the service life of equipment. Compared to traditional metal shells, its anti-corrosion coating has stronger weather resistance and can generally guarantee 10-15 years without significant corrosion.
2. Safety protection in densely populated areas
       In densely populated areas such as schools, shopping malls, and scenic spots, the outer shell of the color steel box transformer not only protects the internal equipment, but also needs to have certain safety protection. For example, the surface of the shell is coated with insulation or grounded to prevent the risk of electrical leakage; Some designs incorporate anti-theft locks and anti pry structures to prevent electrical accidents caused by human damage.