## 6 Conclusions  
Through an analysis of potential seismic hazard scenarios and combined wind and snow loads, appropriate boundary conditions were established based on the load forms and magnitudes experienced by the box-type substation enclosure under these conditions. These boundary conditions were set to maximize the fidelity of the enclosure's representation. Utilizing finite element analysis (FEA) methods, an assessment of the enclosure's structural strength and stiffness was conducted, accompanied by a simplification of the experimental procedures. This approach theoretically enhanced the accuracy of the enclosure simulation and was validated through parametric simulation studies. The conclusions are as follows:  
1. After a comparative analysis of five plans, this study found that reducing the thickness by 0.5 mm to achieve a thickness of 2.0 mm lowers material usage costs. By employing a cross-bracing structure on the side walls, the structural strength and stiffness are maintained. Specifically, the mass of the side wall panels was reduced from 117 kg to 98.0928 kg, resulting in a weight reduction of 18.9072 kg. This reduction not only demonstrates a decrease in material costs but also ensures that the structural integrity is not compromised, thanks to the added cross-bracing. This finding is significant for enhancing the design efficiency of box-type substation enclosures, as it provides a practical approach to achieving cost-effectiveness, while maintaining necessary structural properties. 2. Compared to the original model, the improved box-type substation enclosure exhibits a deformation and maximum equivalent stress within the range of structural strength, reducing stress concentration phenomena and enhancing the enclosure's resistance to deformation. This ensures its normal operation under extreme conditions and prevents fracture occurrences. 3. Through a detailed simulation analysis, a deeper understanding of the specific effects of different optimization solutions on the performance of the box-type substation enclosure has been achieved, providing a more scientific basis for the structural design and material selection. Particularly in considering the potential impacts of thickness reduction on structural performance, this study offers an effective approach towards achieving lightweight enclosure structures with optimized performance. In summarizing our findings, it is necessary to reflect on the static methods used to simulate wind and snow loads. This approach proved effective within the specific range of our study, providing a solid starting point for evaluating structural response under maximum loads. It allows us to simplify our focus, allowing us to gain initial insights within the resource and time constraints typical of early design evaluations. However, we recognize the inherent limitations of static analysis--in particular, its inability to account for the complex interplay of time-dependent loading effects that are characteristic of dynamic environmental forces, such as wind gusts or heavy snowfall that accumulates over time. As we advance, it becomes critical to explore dynamic modeling that incorporates time-varying loads, to more accurately capture the subtle behavior of the structure under such conditions. Therefore, future research should provide a more comprehensive understanding of the load response by integrating dynamic analysis methods. This may involve transient simulations that reflect the fluctuating nature of environmental forces or experimental verification that validates computational predictions. Additionally, the practical implications of adopting one analytical method over another must be carefully considered, balancing accuracy against cost, the practicality of the available technology, and project timelines.