Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having a longitudinal extent and at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed along the longitudinal extent of the core conductor assembly and extends into and out of the outer interstices in a spatially periodic manner so as to permit the resulting power cable to undergo severe bends during cable istallation. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer.

Abstract: This invention relates to an energy conducting cable assembly. In accordance with one aspect of the present invention, the assembly comprises a conductor covered by at least one layer of insulation, and a longitudinally welded corrugated brass sheath formed about the insulation so as to effect a hermetic seal about the conductor. The cable has an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead. The sheath preferably has a corrugation pitch to corrugation depth ratio of less than about 3.75 and an outside sheath diameter to sheath wall thickness ratio of greater than about 100.

Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having a longitudinal extent and at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed along the longitudinal extent of the core conductor assembly and extends into and out of the outer interstices in a spatially periodic manner so as to permit the resulting power cable to undergo severe bends during cable istallation. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer.

Abstract: Disclosed are electrical cable strippers and methods for their use, particularly, stripping tools and methods adapted for use with specific electrical cables such as naval electrical power cables and underground primary distribution jacketed cables.

Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed in and extends along one of the outer interstices of the core conductor assembly. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer. To provide a power cable construction which has superior physical strength, toughness and resistance to damage, the water blocking layer and jacket layers, are formed from first and second cross-linkable materials, respectively.

Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed in and extends along one of the outer interstices of the core conductor assembly. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer. To provide a power cable construction which has superior physical strength, toughness and resistance to damage, the water blocking layer and jacket layers, are formed from first and second cross-linkable materials, respectively.

Abstract: Cable processing control apparatus employs driven cable source and cable take up reels, or sheaves, and two variably spaced idling cable sheaves bearing multiple loops of cable as a fluctuating cable reservoir to accommodate pay off/take up reel discontinuities.A microprocessor, cable discontinuity and reservoir sheave spacing transducers and output driver circuitry are utilized to efficiently and flexibly control the spacing between the idler sheaves as required, for example, to permit continuous cable processing when cable pay off/take up reels are replaced.

Abstract: An improved sheathed cable and method for producing same is described. The cable includes an inner insulated conductor/conductor group, an outer corrugated metal sheath, and a barrier layer of a pliable, inert sealing material disposed therebetween to prevent the passage of gas or vapors via the cable. The method includes the steps of applying the pliable material around the inner insulated conductor/conductor group, wrapping the pliable material with a flexible tape, forming an outer metallic sheath around the material, and making annular corrugations in the outer sheath so as to compress the sealing compound.

Abstract: An improved method for producing sheathed cable which includes an inner insulated conductor/conductor group, an outer corrugated metal sheath, and a barrier layer of a closed-cell foam disposed therebetween to prevent the passage of gas or vapors via the cable. The method includes the steps of extruding a heat activated closed cell foam about the insulated conductor, forming an outer sheath around the foam, and activating the foam to fill the space between the inner and outer sheaths. In accordance with varying alternative embodiments of the invention, the extruded barrier foam layer may be continuous or interrupted; and/or may comprise an already foamed material compressed by formation of the outer metallic sheath.

Abstract: An improved method for producing sheathed cable which includes an inner insulated conductor/conductor group, an outer corrugated metal sheath, and a barrier layer of a closed-cell foam disposed therebetween to prevent the passage of gas or vapors via the cable. The method includes the steps of wrapping a strip of heat activated closed cell foam about the insulated conductor, forming an outer sheath around the foam, and activating the foam to fill the space between the inner and outer sheaths. In accordance with varying alternative embodiments of the invention, the barrier strip may be continuous or interrupted; and/or may comprise an already foamed material compressed by formation of the outer metallic sheath.

Abstract: A transmission line is established between two distant points utilizing a pair of pipelines, one of which is insertable within the other. The outer or larger diameter pipeline is first installed or laid between the two distant points and the pipe is filled with a suitable high density lubricating liquid. The other pipeline which carries and houses the transmssion line is initially filled with an inert gas and in this condition the pipeline and transmission line are "floated" into and through the outer pipeline. After both the inner pipeline and transmission line are in place inside the outer pipeline, the high density lubricating liquid between the pipes may be removed and substituted with a high thermal-conducting non-polluting fluid. The inert gas within the inner pipeline is also replaced with a standard electrical grade insulating oil.

Abstract: A cable temperature measurement circuit includes a heating circuit which comprises a series connection of a current generator, the cable to be heated and a high current shunt and a testing circuit which includes a low current generator, the cable and a low current shunt. Additional circuit means are provided which generate a signal in response to the relative voltage drops across the cable and across either of the high current or low current shunts. An indicator responses to the signal thus generated to provide a readout showing cable temperature.

Abstract: An improved sleeve arrangement is herein provided for protecting splices in pipe-type cables. The sleeve is formed with a diameter which is slightly larger than the overall diameter of the spliced cables and is tapered at the ends to correspond to the tapering of the spliced cables.The sleeve may be made in two halves and the end flanges thereof bolted and gasketed. Alternatively, the sleeve may be welded. In one form of the invention, a cage like support is provided within a main casing having a diameter somewhat larger than the diameter of the spliced cables and tapering at the ends thereof to properly support a splice and at the same time to permit free longitudinal movement. The cage may comprise a series of metal strips welded at each end to a flange which may be bolted to the end flange to which the outer casing is welded.

Abstract: A pulling assembly for gas cables and a method for manufacturing such an assembly is herein disclosed. A hollow cylindrical shell is provided with a cylindrical opening at one axial end and a reduced diameter threaded axial opening at the other terminal end. A pulling eye is provided having a passageway formed generally coaxially within a shank portion thereof and extending to the body of the eye wherein a transversely disposed threaded opening is formed to communicate with the coaxial passageway. The shank is threaded for mating engagement within complementary threads formed in the second axial end of the shell. Stainless steel tubing, or the like, is soldered within the coaxial passageway of the pulling eye. The cable to which the assembly is to be connected is stripped and the shell is inserted over the conductors with the shell tubing inserted within the central interstice of the cable. The shell is crimped onto the conductors and the stripped portions of the cable repositioned over the shell.

Abstract: A packaging arrangement is shown herein for protecting high voltage, pipe-type, impregnated paper insulated cable during long distance shipping. An annular channel is provided along the inside radial face of a cable reel to receive first and second vapor barrier blankets which may comprise laminated layers of polyolefin, aluminum foil and polyethlene. An adhesive is spread throughout the open portion of the channel. A first steel banding wire annularly secures the first two blankets within the annular channel and a synthetic rubber adhesive is disposed over the two blankets and wire. A third blanket comprising a laminate of polyvinyl chloride and Nylon is then disposed over the composite formed up to this point and a second banding wire is tightly secured about the overall composite. The second wire is so positioned as to bear down in a plane extending generally parallel to the radius of the circle described by the first wire so as to be axially spaced therefrom.

Abstract: In combination in an electric cable, at least one conductor, an essentially smokeless insulating jacket enclosing said conductor, the jacket consisting essentially of a chlorosulfonated polyethylene having uniformly dispersed therethrough an amount of magnesium oxide at least sufficient to suppress substantial cable jacket smoking when the cable is subjected to pyrolysis.