“New progress has been made in the repair technology of erosion defects in high-voltage cable buffer layers. Experts have prepared a single component semi conductive silicone rubber based repair agent, and its repair effect and mechanism have been verified through experiments and simulations. After repair, the performance of the buffer layer meets the standard, the current density and electric field distortion are significantly reduced, and there is no adverse effect on the aluminum sheath and shielding layer, providing a reliable solution for the repair of cable erosion defects.”