I. INTRODUCTION
Cable faults in power systems can lead to interruptions, outages, and safety hazards. Therefore, it is essential to detect and locate cable faults. Various faults location methods have been proposed to detect local faults of cables such as Time Domain Reflectometry, Impulse Current Method, Distributed Temperature Sensing [1]. However, the performance of the above methods for detecting weak faults or defects is unsatisfactory. LIRA superior for non-destructiveness and defect sensitivity [2]. The basis of LIRA lies in the wide-frequency impedance spectrum of the cable.