Employing modern quantitative analysis methods, this service collects extensive frontline field data from catenary components and combines it with disassembly and sampling inspections. Accelerated aging tests are conducted to evaluate performance degradation over the life cycle. Using big data analysis and processing, it accurately provides information on sections requiring renovation, renovation methods, and specific renovation content. The service precisely predicts the remaining service life of components, determines the optimal renovation timing, minimizes the cost of major catenary overhauls while ensuring operational safety, and achieves significant savings in overhaul project investment.