**4. Summary and discussion**

Because the shielded power cables are widely used in modern HV power systems and the fact that the partial discharge is a powerful tool for assessing the HV power system status, HF PD electromagnetic wave propagation, detection, and analysis have been extensively studied. In this chapter, the authors look into the details of the shield power cable structure, their HF attenuation properties, PD electromagnetic wave propagation, and address the detection and analysis of the HF electromagnetic wave in the shielded power cable.
