Testing and fault detection of medium voltage (MV) and high voltage (HV) cable sheaths are critical steps to ensure the longevity and reliability of electrical systems. This process involves thorough inspection and testing of cable sheaths to identify defects such as cracks, cuts, or deterioration due to environmental factors or wear and tear. Using advanced diagnostic equipment, faults can be precisely located, allowing for swift and targeted repairs. Early detection and repair of sheath faults are essential to prevent costly outages and ensure the safe and continuous operation of the electrical network.