Patent attributes
A termination connection box for a direct-current (DC) cable, including: a connecting semiconducting layer configured to cover an exposed conductor of the DC cable and an insulating layer of the DC cable; a conductor withdrawal rod electrically connected to the exposed conductor of the DC cable; and a heat shrinkable tube formed of functionally gradient material having non-linear electrical characteristics. The heat shrinkable tube includes: a first end electrically connected to the conductor and which covers a portion of the conductor withdrawal rod and the connecting semiconducting layer; a second end opposite to the first end, electrically connected to the outer semiconducting layer, and which covers a portion of the outer semiconducting layer; and a middle portion positioned between the first end and the second end, and which is in direct contact with and covers an outer circumferential surface of the insulating layer.
