This paper addresses the challenge of accurately monitoring power cable temperatures, which is crucial for the reliability and efficiency of electrical power systems during the energy transition. Overheating of power cables can lead to insulation failure and reduced lifespan, making precise temperature monitoring essential. Recent research by Alliander has explored the use of electromagnetic reflectometry for the recon- struction of power cable temperatures by analyzing the propagation time of pulsed electromag- netic signals within the cable. This study aims to improve upon this by directly reconstructing the electromagnetic parameters of the power cable and understanding their temperature depen- dence through a controlled experiment. Key steps include: • Cable Modeling: Using the Telegrapher’s equations to describe voltage and current distri- butions in the time and frequency domains. • Data Transformation: Converting these equations into integral equations and discretizing them to define an inverse scattering problem. • Experimental Validation: Using synthetic data and data from a temperature-controlled experiment by Alliander to test and refine the reconstruction method The study reconstructs the electrical parameters of the cable and attempts to find a relation between the parameters and the cable temperature. This method attempts a more accurate temperature monitoring system, enhancing the safety and efficiency of power grids