Life Cycle Assessment of High-Voltage Cable Assembly in High-speed Railways

In this paper, we propose a novel life cycle assessment method for a 25kV high-voltage cable assembly. First, we collect and analyze the high-speed railways field data to extract failures data of high-voltage cable assemblies. Based on the data analysis, we calculate the expectancy life of the assembly by using two statistical distribution models and evaluate the service life of the high-voltage cable assembly under different reliability degrees. Then, the failure mode, effects and criticality analysis (FMECA) method is applied to analyze the sensitive loads of the assembly components, respectively. Finally, based on the FMECA analysis, an accelerated aging test procedure is proposed for the insulation layers of the high-voltage cable assembly.