Abstract: A transition joint which blocks insulating oil by connecting a three core HPFF cable and a three core XLPE cable is provided. The transition joint includes three epoxy units which connect independently three first cable cores constituting the three core HPFF cable and three second cable cores constituting the three core XLPE cable, respectively. Each of the epoxy units includes a center electrode connecting an electrode of the first cable core and an electrode of the second cable core, and an epoxy molding part implemented in the form of surrounding an outer wall of the center electrode in order to block the center electrode from the insulating oil.

Abstract: A transition joint which blocks insulating oil by connecting a three core HPFF cable and a three core XLPE cable is provided. The transition joint includes three epoxy units which connect independently three first cable cores constituting the three core HPFF cable and three second cable cores constituting the three core XLPE cable, respectively. Each of the epoxy units includes a center electrode connecting an electrode of the first cable core and an electrode of the second cable core, and an epoxy molding part implemented in the form of surrounding an outer wall of the center electrode in order to block the center electrode from the insulating oil.

Abstract: An apparatus for relieving tension of an electric cable includes an anchor plate; a bell mouth supporting the cable; a plurality of guide supporting bars directly connecting the anchor plate and the bell mouth; an elasticity controller through which each guide supporting bar is penetrated and inserted; a mobile supporting plate elastically supported by one end of the elasticity controller, the mobile supporting plate selectively pressurizing the elasticity controller according to the tension of the cable and moveable along a longitudinal direction of the plurality of guide supporting bars; a fixed supporting plate provided between the mobile supporting plate and the bell mouth, the fixed supporting plate being supported and fixed to each guide supporting bar, the other end of the elasticity controller being supported by the fixed supporting plate; and one or more spring cleats combined with the mobile supporting plate, the spring cleat adapted for holding and fixing the cable.

Abstract: An apparatus for relieving tension of an electric cable includes an anchor plate; a bell mouth supporting the cable; a plurality of guide supporting bars directly connecting the anchor plate and the bell mouth; an elasticity controller through which each guide supporting bar is penetrated and inserted; a mobile supporting plate elastically supported by one end of the elasticity controller, the mobile supporting plate selectively pressurizing the elasticity controller according to the tension of the cable and moveable along a longitudinal direction of the plurality of guide supporting bars; a fixed supporting plate provided between the mobile supporting plate and the bell mouth, the fixed supporting plate being supported and fixed to each guide supporting bar, the other end of the elasticity controller being supported by the fixed supporting plate; and one or more spring cleats combined with the mobile supporting plate, the spring cleat adapted for holding and fixing the cable.

Abstract: A device for connecting high voltage cable having a connection element comprising of first and second sleeves, each having a protrusion on a top for receiving first and second conductors of a first and second high voltage cables and fixing the first and second conductors by pressure; a contact bump being coupled to the protrusion in a sliding manner and an electrode unit having a key hole that the contact bump contacts with, wherein the first and second sleeves are coupled in a manner of male and female coupling.

Abstract: The present invention discloses a device for connecting high voltage cables for forming one power transmission line by connecting conductors of the high voltage cables together and a joint box having the same. A device for connecting high voltage cables according to the present invention comprises a connection element, being comprised of first and second sleeves, each having a protrusion on a top thereof, for receiving first and second conductors, respectively, of first and second high voltage cables and fixing the first and second conductors with pressure; a contact bump, being coupled to the protrusion in a sliding manner and being ascended and descended through an assistant device; and an electrode unit, having a key hole that the contact bump selectively contacts with, where the first and second sleeves are coupled mutually thereto in a manner of male and female coupling.