Joint for high voltage DC power cable and high voltage DC power cable joint system comprising the same

摘要

The present invention relates to an intermediate junction box for an ultra-high voltage DC power cable and an ultra-high voltage DC power cable connection system including the same. Specifically, the present invention suppresses the accumulation of space charges by injecting electric charges into the junction box insulation material applied to the intermediate junction box for ultra-high voltage DC power cables, thereby preventing electric field distortion due to the space charge and insulation breakdown of the intermediate junction box of the cable. It relates to an intermediate junction box for an ultra-high voltage DC power cable, which can be effectively prevented, and an ultra-high voltage DC power cable connection system including the same.