A method for creating a flexible transition joint between HVDC-MI cables (20/40) having different diameters. The central wires (24/44) of the conductors (22/42) are thermally joined by a conical connection piece (62). The strands of the layers of stranded wires (26) surrounding the central wires (2474) are rewound, cut and thermally joined along their respective lay lengths. The stranded are sanded/ground along the lay length of the strands to form a smooth uniform transition having the same slope as the conical connection piece. A paper lapping machine is used to form an insulation patch (72) over the transition joint (69).

A connecting arrangement electrically connects a heating conductor to an electrical connection line. The heating conductor includes a heating conduction element having an exposed end segment defining a first connecting region and the electrical connection line includes a connection line conductor having an exposed end segment defining a second connecting region. A connector mutually electrically connects the exposed end segments. A shielding sleeve surrounds the first connecting region, the second connecting region and the connector. The shielding sleeve has first and second sleeve end portions and the shielding sleeve is connected to the heating conductor in the first connecting region and is connected to the electrical connection line in the second connecting region and so shields the exposed end segment of the heating conduction element and the exposed end segment of the connection line conductor and the connector against external influences.

A connecting arrangement electrically connects a heating conductor to an electrical connection line. The heating conductor includes a heating conduction element having an exposed end segment defining a first connecting region and the electrical connection line includes a connection line conductor having an exposed end segment defining a second connecting region. A connector mutually electrically connects the exposed end segments. A shielding sleeve surrounds the first connecting region, the second connecting region and the connector. The shielding sleeve has first and second sleeve end portions and the shielding sleeve is connected to the heating conductor in the first connecting region and is connected to the electrical connection line in the second connecting region and so shields the exposed end segment of the heating conduction element and the exposed end segment of the connection line conductor and the connector against external influences.

A long object guiding device includes pivotally coupled links. Each link includes a pair of link portions facing each other in a width direction. The links are pivotally coupled together in a state in which the links are arranged in series in a serial direction. A first link and a second link, which are adjacent to each other in the serial direction, are pivotal between a first state and a second state. Each link portion has a first engaging portion and first and second restricting members. An opening is formed between the first restricting member and the second restricting member. When the first and second links are located in a third state between the first state and the second state, the first engaging portion of the second link is aligned with the opening of the first link in the width direction.

A long object guiding device includes pivotally coupled links. Each link includes a pair of link portions facing each other in a width direction. The links are pivotally coupled together in a state in which the links are arranged in series in a serial direction. A first link and a second link, which are adjacent to each other in the serial direction, are pivotal between a first state and a second state. Each link portion has a first engaging portion and first and second restricting members. An opening is formed between the first restricting member and the second restricting member. When the first and second links are located in a third state between the first state and the second state, the first engaging portion of the second link is aligned with the opening of the first link in the width direction.

A pre-expanded breakout boot assembly for protecting a cable joint, the cable joint including a trunk and a plurality of cables extending from the trunk, includes a breakout boot assembly and plurality of removable finger holdouts. The breakout boot assembly includes a cold-shrinkable, electrically insulative, elastomeric breakout boot and plurality of finger sealant layers of a conformable medium. The breakout boot includes a tubular main section having an interior surface defining a main passage, and a plurality of tubular fingers extending from an end of the main section, each of the fingers having an interior surface defining a finger interior passage. Each of the finger sealant layers is pre-mounted on the interior surface of a respective one of the fingers. The conformable medium is a flowable material. Each of the finger holdouts is mounted in the finger passage of a respective one of the fingers such that the finger holdout maintains the finger in an elastically radially expanded state, and the finger holdout is selectively removable from the finger to permit the finger to elastically radially contract. Each finger sealant layer is positioned and configured such that, when the pre-expanded cover assembly is positioned on the cable joint with a cable extending through each finger passage, the finger holdouts are removed from the breakout boot assembly, and each finger elastically radially contracts about a respective one of the cables, each finger sealant layer will be radially interposed between each of the interior surface of the finger and the cable extending through the finger.

1. A pre-assembled cable assembly for a penetrator body or pothead comprises at least one cable located in a volume of the penetrator body or pothead, the volume around the cable being encapsulated in a low temperature alloy. The cable or cables may include a spliced electrical connection located a volume of the penetrator body or pothead such that the volume around the spliced electrical connection being encapsulated in a low temperature alloy.

1. A pre-assembled cable assembly for a penetrator body or pothead comprises at least one cable located in a volume of the penetrator body or pothead, the volume around the cable being encapsulated in a low temperature alloy. The cable or cables may include a spliced electrical connection located a volume of the penetrator body or pothead such that the volume around the spliced electrical connection being encapsulated in a low temperature alloy.

A long object guiding device includes pivotally coupled links. Each link includes a pair of link portions facing each other in a width direction. The links are pivotally coupled together in a state in which the links are arranged in series in a serial direction. A first link and a second link, which are adjacent to each other in the serial direction, are pivotal between a first state and a second state. Each link portion has a first engaging portion and first and second restricting members. An opening is formed between the first restricting member and the second restricting member. When the first and second links are located in a third state between the first state and the second state, the first engaging portion of the second link is aligned with the opening of the first link in the width direction.

High capacity (10 GW, for example) passively cooled non-superconducting underground high voltage direct current electric power transmission lines (100) of very low loss (1% per 1,000 km, for example) and competitive cost. The transmission lines (100) include segment modules (101) linked together with compliant splice modules (102) between the segments (101), typically installed in a protective conduit (103). The segment modules (101) include relatively rigid pipe-shaped conductors (117) insulated by pipe-like solid insulating layers (131) to form segment modules (101) that resemble pipe. The segment modules (101) are linked together through radially and axially compliant splice modules (102) to form the transmission line (100). There are preferably wheels (300) deployed to ease insertion and removal of the assembled segment modules (101) and splice modules (102) into the conduit (103), to center each segment module (101) within the conduit (103), and/or to provide motive force and/or braking to allow the assembled segment modules (101) and splice modules (102) to be installed on a slope.