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What are the advantages of the shell of the color steel plate box type substation

source：www.taicredit.cn  |  Release time：2025年05月27日
     The shell of the color steel plate box type substation is widely used in the field of power equipment due to its material characteristics, structural design, and functional advantages. Its core advantages are mainly reflected in the following aspects:
1、 Combining lightweight and high strength
1. Lightweight, easy to transport and install
     Color coated steel plates are composite with lightweight core materials such as polyurethane, rock wool, and polystyrene, with an overall weight of only one-third to one-half of traditional concrete or metal shells. They are easy to transport and lift on site, especially suitable for rapid deployment in remote areas or complex terrains.
2. Reliable structural strength
     Adopting modular splicing design, the steel plate substrate has high strength (yield strength ≥ 250MPa), combined with the supporting effect of the core material, it can withstand wind pressure (wind resistance level ≥ 10), snow load (load capacity ≥ 0.5kN/㎡) and daily collisions, meeting the long-term outdoor use needs.
2、 Excellent corrosion resistance and aging resistance
1. Surface coating protection
     The surface of the color steel plate is treated with galvanizing and aluminum zinc plating, and coated with polyester (PE) and fluorocarbon (PVDF) coatings, which can effectively resist acid rain, salt spray, ultraviolet radiation and other erosion. The service life is up to 15-20 years (traditional iron shells are prone to rusting, with a service life of about 5-8 years).
2. Advantages of moisture and rust prevention
      The core material has a high closed cell rate (such as polyurethane closed cell rate ≥ 90%), which can block water vapor penetration and prevent internal metal parts from rusting, especially suitable for humid, rainy or coastal areas.
3、 Efficient insulation and sound insulation performance
1. Thermal insulation and energy saving
      The thermal conductivity of the core material is low (rock wool ≤ 0.04W/(m · K), polyurethane ≤ 0.025W/(m · K)), which can reduce the impact of external temperature on the internal equipment of the transformer and lower the energy consumption of air conditioning operation, especially suitable for high temperature or cold regions (such as Xinjiang and Northeast China).
2. Sound insulation and noise reduction
      The composite structure of color steel plate can reduce the outward propagation of equipment operating noise (such as transformer noise), with a sound insulation level of 25-30dB, meeting the requirements of noise control in urban residential areas, commercial centers, etc.
4、 Flexible customization and aesthetics
1. Modular design, fast installation
      The size can be customized according to the size requirements of the box transformer. It can be assembled on-site with bolts or buckles, and the installation cycle is shortened by more than 50% compared to traditional concrete shells, making it suitable for emergency power supply projects.
2. Diverse appearance, adaptable to the environment
      The surface coating can be customized in various colors (such as gray, blue, green), and can be printed with patterns or logos to coordinate with the surrounding architectural style, especially suitable for urban landscape areas or industrial parks.
5、 Outstanding fire prevention and safety performance
1. Flame retardant core material is optional
      Using non combustible core materials such as rock wool and glass wool (with combustion performance of Class A), it does not burn or release toxic gases when exposed to open flames, meeting the requirements of the "Code for Fire Protection Design of Buildings" and reducing the risk of fire.
2. Grounding and lightning protection design
     The metal frame of the shell can be directly used as a grounding conductor, combined with lightning protection devices, to enhance lightning resistance and ensure the safety of equipment and personnel.
6、 Low maintenance cost and environmental friendliness
1. Maintenance free feature
     The surface coating is not easy to fade or powder, and there is no need to regularly apply anti-corrosion coatings. The maintenance cost is reduced by more than 60% compared to traditional metal shells.
2. Recyclable and reusable
     After retirement, the color steel plate can be disassembled and recycled, and the steel and core materials (partially recyclable) reduce environmental pollution, which is in line with the concept of green building.
Typical application scenarios
1. Urban power grid renovation: For example, outdoor transformer substations in streets and residential areas need to be aesthetically pleasing and low-noise.

2. Industrial park: Suitable for complex working conditions, corrosion-resistant and oil resistant.
3. In the field of new energy: Box type transformers for photovoltaic and wind power projects require rapid installation and weather resistance.
4. Temporary power usage scenarios: such as temporary transformer boxes at construction sites and exhibitions, which need to be lightweight and easy to disassemble.

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