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What scenarios are suitable for using the shell of a box type substation

source：m.czdmad.com  |  Release time：2025年12月08日
        The shell of a box type substation is the protective carrier of the substation, and its material (such as color steel plate, stainless steel, aluminum alloy, cement box, etc.) and structural design determine the applicable scenarios. The core function is to protect the internal substation equipment from external environmental erosion and human damage, while adapting to the installation conditions of different sites. The specific applicable scenarios are as follows:
1. Urban residential areas and mixed use areas
         These areas are densely populated and land scarce, with high requirements for the footprint and aesthetic appearance of substations. The compact shell of the box type substation can be directly installed in the green belt of the community, the overhead floor of the building, or the roadside open space, without the need to build a separate distribution room; When choosing color steel plates or aluminum alloy shells, it is also possible to customize colors and appearances that match the surrounding architectural style to avoid visual abruptness. At the same time, the shell has good rain, dust, and sound insulation performance, which can reduce the interference of equipment operation noise on residents and is suitable as a distribution terminal for residential electricity.
2. Industrial parks and industrial and mining enterprises
        The factories in the industrial park are scattered and the electricity load is diverse. There are complex working conditions such as dust, oil pollution, and slight corrosion in industrial and mining enterprises. For ordinary factories, cold-rolled steel plates with spray painted shells can be used, which is cost-effective and meets the protection requirements; For factory areas with corrosive media such as chemical and metallurgical industries, stainless steel casings should be selected, which are acid and alkali resistant, rust resistant, and can ensure long-term stable operation of equipment. In addition, the shell of the box type substation can be equipped with anti-theft locks and impact barriers according to the needs, to resist accidental collisions of vehicles and equipment in the factory area, and to adapt to the harsh environment of industrial production.
3. Municipal engineering and temporary construction sites
        Flexible and convenient power supply schemes are required for municipal engineering projects such as road lighting, subway construction, bridge construction, as well as temporary power supply during the construction period of real estate projects. The shell of the box type substation is movable, and the box with trailer chassis can be lifted and transported as a whole, and can be flexibly relocated according to the construction progress; Choosing a rainproof and windproof shell can meet the needs of outdoor installation, ensuring the normal operation of the substation equipment even in rainy and windy weather, and meeting the emergency needs of temporary power supply.
4. Remote rural and rural power grid renovation projects
       The rural areas have a wide coverage of power grids, scattered installation sites, and problems such as humidity, mosquitoes, and rodents. The shell of the box type substation can be made of cement composite board, which is low-cost, sturdy and durable, and can withstand harsh weather conditions in the wild; Stainless steel casing can also be used to prevent corrosion and rodent bites. The box can be directly installed on open land in fields or village entrances, without the need for complex foundation construction. It is suitable for the power supply needs of "small capacity and wide coverage" in rural power grid renovation, and solves the electricity problems for rural irrigation and residents' daily life.
5. Commercial complexes and transportation hubs
       Shopping malls, supermarkets, high-speed railway stations, airports and other places have high electricity loads and high requirements for power supply reliability. In addition, the crowded areas have strict requirements for equipment safety. The outer shell of the box type substation should be made of fire-resistant and flame-retardant materials (such as colored steel plates filled with fire-resistant rock wool), with good heat dissipation and ventilation design to avoid equipment failure due to high temperatures; At the same time, the strong sealing of the shell can prevent personnel from accidentally touching the internal high-voltage equipment, ensuring the electrical safety of public areas. In addition, the box can be hidden and installed in underground garages, equipment rooms, and other locations, without occupying commercial space.
6. Special environmental scenarios
       Coastal salt spray areas: 304/316 stainless steel casing should be selected and treated with anti salt spray coating to resist corrosion from high humidity and high salt air.
       In high-altitude regions, insulation layers can be added to the outer shell, and a structure with good sealing can be selected to prevent equipment from freezing and cracking at low temperatures, while reducing heat loss and ensuring normal startup of equipment in low-temperature environments.
       Explosion proof demand scenarios (such as gas stations, refueling stations): Explosion proof enclosures should be selected, and explosion-proof structural designs should be adopted to prevent sparks generated by internal equipment failures from causing explosions, and to adapt to safety regulations in flammable and explosive places.