A system and device for sealing a plurality of electrical wires to a wire attachment portion of an electrical terminal, wherein a shrinkable tubing is placed over the plurality of electrical wires such that one end thereof extends over the wire attachment portion of the electrical terminal. A band of the high viscosity sealant/adhesive is placed within the heat shrink tubing adjacent to the edge of heat shrink tubing. A band of the low viscosity sealant/adhesive is placed within the heat shrink tubing. Upon the application of heat to the device, the shrinkable tubing starts to recover, the high viscosity sealant/adhesive seals the edge of the shrinkable tubing and the low-viscosity sealant/adhesive flows across and through the plurality of electrical wires to create a seal. The high viscosity sealant/adhesive prevents flow of the low-viscosity sealant/adhesive from contaminating the electrical terminal.

A method of heat shrinking a protective sleeve onto an electrical connection includes an initial step of providing an electrical connection, such as between an electrical wire and an electrical termination device, and a protective sleeve having an inner surface and an outer surface. The inner surface of the protective sleeve has an adhesive material applied thereto and is disposed about the electrical connection. Thermal energy is applied to the outer surface of the protective sleeve so as to increase the temperature thereof. Either before, at the same time, or after this step, the temperature of some or all of the electrical connection disposed within the protective sleeve is increased, such as by induction heating. As a result, the protective sleeve shrinks onto the electrical connection, and the adhesive material forms a tight bond between the protective sleeve and the electrical connection.

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.

A coaxial juncture assembly 10 has a characteristic impedance Z.sub.0 and comprises an inner conductive formation 32 having opposed first and second ends 34.1, 34.2 which are connectable to an inner conductor of a coaxial cable and an inner conductor 18 of a port respectively. The cable has a characteristic impedance Z.sub.0 and the inner conductor has a diameter d.sub.1. The formation 32 has an outer diameter d.sub.1, which is larger than d.sub.1. A conductive tubular member 36 has an inner diameter D.sub.1, a first end 38.1, a second end 38.2, a slot 40 and an inner surface area A.sub.inner. The member 36 is connectable at end 38.1 thereof to an outer conductor of the cable and at the end 38.2 to an outer conductor of the port. The assembly 10 comprises a dielectric arrangement 42 having a dielectric constant .sub.eff. At least one of: a) .sub.eff and b) A.sub.inner is configured such that a difference between Z.sub.o and Z.sub.o is less than 3% and D.sub.1 and D.sub.1 varies by less than 5%.

A heat shrinkable connection component according to one embodiment of the present disclosure is used for the purpose of connecting an insulated wire that is obtained by covering a conductor with an insulating layer. This heat shrinkable connection component is provided with a heat shrinkable tube that has a melting point of 210 C. to 250 C. and a pair of sealing parts that are arranged on the inner circumferential surfaces of both end parts of the heat shrinkable tube; and the sealing material of the sealing parts has a shear viscosity of 1,000 Pa.Math.s to 2,000 Pa.Math.s at a shear rate of 100/s at 250 C., and a shear viscosity of 7,000 Pa.Math.s to 70,000 Pa.Math.s at a shear rate of 0.01/s at 215 C.

An automated apparatus for installing a sleeve on a cable includes a split funnel assembly, a cable feeding mechanism, a robot comprising a robot tool mounting flange and a plurality of robot motors, a sleeve gripper mounted to the robot tool mounting flange, a plurality of heaters, and a computer configured to output commands in accordance with a predetermined computer program. The split funnel assembly includes an actuator and a split funnel comprising a pair of funnel halves which are able to open and close in response to activation of the actuator. Each funnel half comprises a cable guide channel and a funnel extension. While the split funnel is in the funnel closed state, the funnel extensions form a seat for the sleeve and the cable guide channels form a repeatable path for the cable to follow through the funnel. The apparatus further includes a cable centering gripper, a cable clamp assembly, a slug puller assembly, and a ground lead management system.

A termination connection box for a direct-current (DC) cable, in which when an outer semiconducting layer, an insulating layer, and an inner semiconducting layer are sequentially removed, a conductor is exposed, the termination connection box, the termination connection box including: a connecting semiconducting layer configured to cover the exposed conductor and the insulating layer; a conductor withdrawal rod electrically connected to the conductor; and a heat shrinkable tube configured such that one portion thereof covers an outer circumferential surface of the cable insulating layer and one end and another end thereof are respectively electrically connected to the conductor and the outer semiconducting layer.

A method of preparing a cable and a connector and, more particularly, to a method of making a cable with a connector. The method connects an end connector to a respective end of at least one of a first and a second conductor. The method comprises applying a dielectric sealant to the whole of one or more electrical joints in the audio cable jack connection to thereby hermetically seal the joints. The method comprises completely coating one or both the first and second joints with a liquid, viscous, fluid, or otherwise paintable insulation, thereby hermetically sealing the cable joints so that the joints are protected from corrosion, oxidation, and/or other types of atmospheric attack, the joints are strengthened, and degradation of an electrical signal carried on the cable is reduced.