During the comprehensive study, a detailed list of recommendations was developed regarding the procedure and content of the program and methods of bench tests of the contact wire to assess the amount of wear. This study is significant as it provides a structured approach to enhancing the reliability and accuracy of wear measurements. One of the key innovations introduced in this research is the contactless method of diagnosing the state of the sliding power contact. This is achieved through non-destructive temperature control at the point of current collection, which offers a predictive capability for the outcome of bench tests at an early stage. This method not only improves the accuracy of initial assessments but also enhances the overall efficiency of the testing process. Based on scientifically substantiated results, it is evident that expanding the program and methods of bench tests of the contact wire by incorporating temperature control of the contact zone is beneficial. This expansion will significantly reduce the time, energy, and other costs associated with mandatory bench tests of the latest samples of contact inserts of pantographs. The study highlights that by monitoring the temperature of the contact zone, it is possible to streamline the testing process, thereby achieving more reliable results in a shorter period. Moreover, the adoption of these recommendations and methods will contribute to the development of more durable and efficient contact wires, ultimately improving the performance and longevity of pantographs. The findings of this study are crucial for advancing the field of electrical contact technology and ensuring the optimal functioning of railway systems. By implementing these recommendations, industry professionals can expect to see a marked improvement in both the quality and cost-effectiveness of contact wire testing procedures.