Direct current power cable

• Main Authors: JUNG HYUN JUNG, CHO YOUNG EUN, NAM JIN HO, NAM GI JOON
• Format: Patent
• Language: English; Korean
• Published: 02.01.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The present invention relates to a direct current power cable. Specifically, the present invention relates to a direct current power cable capable of simultaneously preventing direct current dielectric strength reduction and impulse breakdown strength reduction which are caused by space charge accumulation, and capable of reducing manufacturing costs without lowering the extrudability of an insulating layer or the like. To this end, the direct current power cable comprises: a conductor; an internal semiconducting layer covering the conductor; an insulating layer covering the internal semiconducting layer; an external semiconducting layer covering the insulating layer; and a cover covering the external semiconducting layer. 본 발명은 직류 전력 케이블에 관한 것이다. 구체적으로, 본 발명은 공간전하(space charge) 축적에 의한 직류 절연내력의 저하 및 임펄스 파괴강도의 저하를 동시에 방지할 수 있고, 절연층 등의 압출성이 저하되지 않고 제조비용이 절감될 수 있는 직류 전력 케이블에 관한 것이다.