Abstract: The invention provides a system, for providing the distribution of electrical power and data signal communication inside a passenger aircraft to each seat on each seat assembly, the passenger seat assembly comprising a leg frame secured to a floor seat track and a lateral beam spanning between the leg frame and a side wall seat track, the lateral beam supporting a passenger seat and having an outboard end secured in the side wall seat track, the system comprising: a hub secured to the side wall seat track, the hub being connected to both: a source of electrical power; and a source of data signal communication, via a side wall mounted conduit; and an outlet secured to the passenger aircraft seat assembly and communicating with the hub via an outlet conduit.

Abstract: An assembly for passing an electrical harness through a wall includes a tubular metal end piece passing right through the wall and housing the electrical harness. The assembly further includes a sleeve made from heat-shrinkable material extending around an end part of the tubular end piece and of the electrical harness. The assembly further includes structures for extracting heat from the tubular end piece that are arranged on the side of the end piece surrounded by the heat-shrinkable sleeve.

Abstract: A self-supporting electric power cable is disclosed. The electric power cable includes an outer jacket portion and a core portion. The core portion includes at least one insulated conductor and at least one supporting cord. The at least one insulated conductor includes a number of individual wires, and the at least one supporting cord includes synthetic fibers. The number of individual wires, individually or arranged in bundles, are arranged in a first lay direction. The at least one insulated conductor and the at least one supporting cord are arranged in a second lay direction. The at least one supporting cord is arranged as a separate unit in a cross sectional sector of the self-supporting electric power cable. Thus flexible and durable power cable for sea use is provided. Also an offshore arrangement is disclosed herein.

Abstract: A power cable to be provided inside a steel pipe that is electrically connected to a reference potential node, includes 3 transmission cables, 3 ground buses making contact with outer peripheral surfaces of adjacent transmission cables and arranged at 3-fold rotationally symmetrical positions with respect to a center of the transmission cables in a cross sectional view, a binder covering the ground buses and the transmission cables, and a jacket provided to overlap the binder. The transmission cables have outer diameters to inscribe a first circle having a radius corresponding to a radius of a second, envelope circle of the power cable having a maximum radius inside the steel pipe, but excluding thicknesses of the binder and the jacket. The ground buses have outer diameters to project outwardly of an envelope closed curve of the transmission cables, but less than or equal to a diameter of the first circle.

Abstract: A universal cable system includes a cable, which may include a keyed profile and an optional, integrated pull cable for low-voltage applications in residential and commercial structures, both old and new construction, which may further includes a connector, which does not require individual splicing of the wires from the cable. The connector may be self-crimping or crimped with a tool. During installation of the connector onto the cable, conductors in the connector may be simultaneously spliced to the wires of the cable during crimping.

Abstract: A cable which comprises a plurality of pairs of first and second insulated conductors. The first and the second insulated conductors, of each pair, are twisted with one another to form a twisted pair and each of the twisted pairs has a different lay length from one another. Each of the plurality of twisted pairs is wrapped with a hoop strength wrap which maintains a mechanical strength and integrity of the twisted pair during subsequent handing thereof, and a circumference of the hoop strength wrap is about 5% or less than a dielectric pair minimum circumference of the first and the second insulated conductors of the twisted pair. At least one metallic wrap is provided for shielding and grounding of the plurality of twisted pairs. The plurality of twisted pairs and the at least one metallic tape are surrounded and encased by a conventional exterior jacket to form the cable.

Abstract: Detailed is a device for guiding a cable for linking a submerged robot, in particular a robot for cleaning swimming pools, to the device for controlling and powering same, said guiding device including: a. a coupling including a rotary connector, connected by one side to a first floating portion of the linking cable extending from the control and power device to said coupling and, by the other side, to a second portion of the linking cable extending from said coupling to the submerged robot; b. a floating mounting including: b(i). a float; b(ii). an interface for mechanically linking the rotary connector to said float; and b(iii). a hood extending above the surface when the floating mounting is submerged in a liquid and removably connected to the float; c. in which the mechanical link between the float and the rotary coupling is a ball-and-socket link.

Abstract: It is provided a power converter for transferring power between a high voltage DC connection and a high voltage AC connection. The power converter includes a power converter assembly including: a first converter arm, a first reactor, a second reactor and a second converter arm, connected serially between the positive and negative terminals of the DC connection. The high voltage AC connection is provided between the first reactor and the second reactor. Each one of the converter arms includes a plurality of converter cells and each one of the converter cells includes a switching element and an energy storage element. Both the first reactor and the second reactor are oil filled reactors.

Abstract: A skin effect heating cable used to form a heat tracing circuit for heating a production pipe carrying process media. The skin effect heating cable includes a heating tube which includes a conductor, an insulating layer wrapped around the conductor and a dielectric fluid disposed between the insulating layer and the inner wall of the heating tube. The dielectric fluid increases the heat transfer characteristic from the conductor to the heating tube while providing mechanical load relief to the cable.

Abstract: Included are a cylindrical holding portion, a groove engageable with a balloon band removed from a balloon engagement groove provided in an outer periphery of an ultrasound transducer unit, a cut portion provided in the holding portion, the cut portion allowing the holding portion to radially expand in a radial direction, and an abutment portion provided on a second opening side relative to the groove on an inner peripheral face of the holding portion.

Abstract: A cord management system operable to reduce or eliminate various forces exerted on a vacuum cleaner power cord. The system includes a swiveling strain relief incorporated into the vacuum handle and collars, used to connect sections of dirty air conduit, having exterior portions that enable the power cord to be retained in a secure manner.

Abstract: A power/data bus for conducting at least one of data and power signals to a variety of different locations on a mobile platform. The bus has a plurality of discrete connection ports, and at least one conductive cable. The power/data bus extends across an area where access to at least one of data and electricity is desired. The discrete connection ports are spaced apart at different locations along the power/data bus. The conductive cable extends through the power/data bus and is connected to at least one of the discrete connection ports. The conductive cable conducts at least one of power and data signals between the discrete connection ports and a data/power source. At least one of the connection ports are operable to cooperate with a connector of an external device to supply at least one of power and data signals to the external device. The power/data bus, when used in an aircraft passenger cabin, eliminates the need to extend individual data and/or power cables to or between each passenger seat group.

Abstract: The present invention provides a distributed feed system (10) for use in a cable system (12), where the cable system includes at least two cable subsystems (14a-14d). The distributed feed system is adapted to feed a performance-enhancing compound into each of the cable subsystems. The distributed feed system includes a central feed station (22) having a tank (24) for holding the performance-enhancing compound. The distributed feed system further includes an impermeable or low-permeable distribution conduit (26a-26c) that connects the central feed station to each of the cable subsystems to permit distribution of the performance-enhancing compound therethrough to each of the cable subsystems.

Abstract: An apparatus and method is provided for removing undesired coiling or twisting that has developed in a power cable attached to a robotic swimming pool cleaner during the cleaner's pre-programmed or random movement over the bottom and/or side walls of the pool. A rotatable grip assembly is permanently or removably affixed to the power cable adjacent one or both ends of the power cable that can be disconnected from the power supply or the pool cleaner. The rotatable grip assembly includes one or more bearings, at least a portion of which bearings is fixed with respect to the power cable, and a gripping member that is in contact with the one or more bearings.

Abstract: The present invention relates to an apparatus and method for increasing the power rating of an offshore high voltage power cable (1) which includes passage of the cable from the sea to a platform installation (2) through a bending strain reliever (BSR) (4). An inlet for introducing cooling fluid to an interface space (5) between the BSR and the cable is provided through a sleeve, (6) closing the space at the end (7) of the BSR and that an outlet for the fluid is provided at the upper end (12) of the BSR through a special flange (13).

Abstract: A gas-insulated power breaker (1) has encapsulation (2) which is filled with an inert gas. Live parts (10, 11, 12, 13) are arranged in the encapsulation (2). In order to prevent damage to the live parts (10, 11, 12, 13) during transportation, a transport support (17) is provided. In a secured position, the transport support (17) supports the live parts (10, 11, 12, 13) with respect to the encapsulation (2). It can be partially withdrawn and moved to an operating position, through a gastight aperture (22), without the inert gas having to be evacuated or the encapsulation (2) opened in this event. This allows the switch to be transported safely, prevents contamination of the interior (3) of the encapsulation (2), and avoids the need for costly emptying and refilling with inert gas.

Abstract: In a multiple parallel conductor (1), in particular a continuously transposed cable, used for windings of electrical devices and machines, each strand has its own electrical insulation and all strands are provided with a common wrapping. Underneath the wrapping (9), there is arranged at least one rip cord (11) extending in the longitudinal direction of the multiple parallel conductor (1) for easy removal of the wrapping (9) before a winding is formed.

Abstract: Device and method of protecting a satellite from undesired electrical disturbances without significantly increasing the satellite's weight. The device includes two faraday cage structures around the electronic units of the satellite. The two structures are electrically connected via shielded wires to create one continuous faraday cage. Signals from components located outside the faraday cage to the electronic units are made through filter assemblies. The filter assemblies electronically filter undesired signals before routing desired signals to their destination.

Abstract: A shielded cable having in the core of the cable a plurality of conductors, a lateral shield having overlapping longitudinal ends surrounding the cable core. The shield has a thickness of up to about 6 mils. A helical groove formed in the shield, and an insulating jacket surrounding the shield.

Abstract: An electrical cable comprises one or more insulated elongate electrical conductors (1,2), a metal electrical shield 5 surrounding the conductors and a pull-thread 7 that extends along the cable under the shield so that the shield can be cut longitudinally by pulling the thread.The cable can be stripped of shield and jacket simply by pulling the thread and then tearing the end of the shield and jacket off. If desired a second conventional pull thread may be located between the shield and jacket in order to allow the jacket to be removed and the shield exposed.

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: 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: A cable which is easily strippable by a transversely-acting pincer. Its sheath has a cross-section including at least two pairs of ribs delimiting longitudinal grooves which face one another in planes intersecting the inside surface of the sheath, but outside the conductors and the earthing leads of the cable.

Abstract: A holder for protection and handling of a brittle electrical conductor element, such as a ceramic superconductor, limited in its ability to withstand tensile and compression forces exerted thereon and bending along its axial length beyond a predetermined arcuate path. The holder has a flexible housing which encompasses and protects the superconductor element. A helically disposed strengthening element is integral with the housing. The strengthening element resists tensile forces exerted on the housing in an axial direction and resists radially imposed forces on the housing isolating the superconductor element from these forces. The strengthening element also provides for limited arcuate bending of the housing for limiting the bending beyond a predetermined arcuate path.

Abstract: A closure and method for protecting a splice connecting at least two cables. The closure includes a flexible reservoir positioned around the splice, a curable liquid sealant introduced into the reservoir, a means applied to the reservoir for increasing the pressure therein and a pressure measuring tube communicating between the inside and outside of the reservoir.

Abstract: A cable length of the type comprising a conductor, polymeric insulation 3 over the conductor, a semiconducting screen 4 over the polymeric insulation, a fault carrying screen 5 over the semiconducting screen, and a protective sheath 6 over the semiconducting screen has at least the leading end thereof partially prepared for jointing prior to laying of the cable. At the leading and or each end the cable is stripped back over successive increasing lengths 7, 8, 9 to its polymeric insulation 3, its semiconducting screen 4 and its fault carrying screen 5. A semiconducting sleeve 13 fits over the protective sheath 6, extends over the stripped lengths of fault carrying screen 5 and semiconducting screen 4 and abuts the end portion of the latter. A clamp 12 disposed within the sleeve 13 terminates the fault carrying screen 5 and a sleeve 19 of polymeric insulation is provided on the stripped length of polymeric insulation 3.

Abstract: A device for constricting an electric cable used underwater for restricting the flow of water lengthwise of the cable when its sheath is perforated intentionally or accidentally. The device comprises a rigid hollow cylinder which fits around the cable with spacing between the cable and the interior wall of the hollow cylinder and has an end wall with an opening for the passage of the cable through the hollow cylinder. The opposite end of the hollow cylinder has an exterior flange, and the space between the interior wall thereof and the cable is filled with an elastomeric or plastomeric sleeve. An annular body which fits around the cable and into the hollow cylinder so as to engage the sleeve has an external flange by which the body may be pressed into the hollow cylinder and thereby compress the sleeve and, hence, the cable.

Abstract: An electret capable of holding electric charges semi-permanently is used to attract conductive particles generated or intruded in a gas-insulated electric apparatus during assembly work including an operation test of movable parts thereof, thus improving the reliability of insulation characteristic of the apparatus.

Abstract: Undesirable attenuations are avoided in a light-conducting cable by providing a certain play between the coated light-conducting fiber and its outer protective casing which may include a reinforcing sheathing surrounding the coating and surrounded by an outer casing. Such play is achieved by temporarily providing a removable material radially inwardly, or in, or radially outwardly of the sheathing and then removing such temporary layer by chemically dissolving the layer, or melting, or evaporating the layer through the outer casing which is made permeable for this purpose.

Abstract: An electrical cable for very high voltage underground power transmission comprises two or more inner conductors (2) which are twisted together and are supported within the gas-filled void of a hollow extruded plastic cable sheath (4) by means of a plurality of spacers (3) which are positioned along the length of the cable, each spacer (3) being formed of solid dielectric material with a number of angularly spaced radial webs equal to the number of conductors in the cable and being engaged with the twisted conductors with the webs extending from the cable axis radially outwardly between the conductors into contact with the inner wall of the cable sheath (4) where the outermost ends of the webs engage with complementarily shaped portions (5) of the sheath (4) providing for reduction of the electrical stresses at the spacer ends.

Abstract: A capping member and method are provided for hermetically sealing a cable end; in a particular embodiment the capping member includes a generally tubular, rigid main body, closed at one end and with a plurality of inwardly deflectable fingers extending from the other end; an injection port, which is suitably located in the closed end, permits injection of sealing material under pressure into the void between the capping member and a cable end over which it is telescoped; in this way the void is substantially filled so that entry of moisture into the cable is prevented.

Abstract: In an end cap for communications cables, and particularly one equipped with a pulling eye, an axial spigot provided with cable engaging enlargements is also formed so as to define longitudinally extending surface channels for the passage of gas, which channels are protected from entry of cable conductors either by being oriented at an angle to the lay of the conductors, or by the insertion of a small bore air carrying tube.

Abstract: A method is disclosed for removing an end cap from a telecommunications cable wherein a circumferential incision and a plurality of longitudinal incisions are made with a wire in segmenting the cap.

Abstract: Electrical apparatus including an enclosure, an electrode disposed within the enclosure, and supports for insulatably supporting the electrode within the enclosure has a permanently sticky adhesive material which is disposed on the interior surface of the outer enclosure. A high-vapor-pressure sublimable material is disposed on the permanently sticky adhesive material, with the sublimable material capable of subliming away in the presence of a vacuum. The presence of the sublimable material enables the apparatus to be non-sticky during assembly and handling operations, while being rendered sticky upon commissioning of the apparatus.

Abstract: A gas-insulated transmission line includes a cylindrical outer sheath, an inner conductor within the outer sheath, an insulating gas, and support insulators for insulatably supporting the inner conductor within the outer sheath. The support insulators have a pair of circumferentially spaced apart openings therein, and a wheel assembly is disposed within each of the support insulator openings. Each wheel assembly includes a rotatable wheel which extends outwardly of the support insulator opening and contacts the outer sheath. With such an arrangement, insertion or movement of the inner conductor within the outer sheath is done on wheels instead of with a sliding motion to thereby minimize the generation of conducting contamination particles.

Abstract: A conductive cable having a conductive core and a protective jacket of plastic material moulded around the core, also contains a guide member, in particular a guide tube, below the jacket and into which a jacket slitting tool can be inserted.By pushing the slitting tool along the tube, the jacket can easily be slit, the tool cutting through the side of the tube adjacent the jacket whereas the side of the tube adjacent the core guides the tool along the cable and protects the core from damage by the tool.If the cable contains metal screening, the guide tube is located between the screening and the jacket.

Abstract: An easily removable heat-recoverable closure assembly for a substrate includes a heat-recoverable closure and a flexible wire to be interposed between the closure and the substrate. The wire has sufficient flexibility and sufficient strength that it can be pulled through the wall of the closure for removal of the heat-recovered closure from the substrate.

Abstract: An elongated cylinder is essentially comprised of a continuous side wall with a narrow weak wall segment along the length thereof for fracturing by the application of a small force to permit access to the interior of the cylinder along the fractured side wall. The weak side wall segment is in the form of a very thin web section produced by grinding or in a molding operation which may additionally include the filling of the hollowed area of the side wall with a dissimilar material. The article is used for cable placement, varmint protectors for tree trunks, protectors for wire harnesses, protectors for cable splices, and a mold for concrete.

Abstract: A cable having an outer protective covering or sheath enclosing one or more insulated conductors and a cutting wire or rip cord intended for slitting the sheath, the cutting wire being attached to the sheath's inner surface and/or the core in order to prevent the cutting wire from slipping out of the cable.

Abstract: This invention provides relatively simple and inexpensive end seals for protecting the ends of telephone cables that are preconnectorized at the factory or distribution center. These end seals are moisture-proof, able to retain pressure and afford mechanical protection while the preconnectorized cables are carried in inventory and during handling to a place of use in the field.

Abstract: An elongated flexible gas-insulated transmission line cable is fitted with pressure-tight termination assemblies at its opposite ends before it is placed on a reel for shipment. The cable is then filled with dry gas, such as nitrogen, at a relatively low positive pressure and the cable is then reeled and shipped. The cable terminal ends are adapted for easy connection to other circuit components without requiring access to the interior of the cable and the terminals permit the purging of the nitrogen gas and the installation of sulfur hexafluoride or some other electronegative gas before the cable is placed into operation.

Abstract: Electrical devices which include electrical elements positioned within a container are assembled at the manufacturing site and then transported to the erection site by forming the container with openings therein such that transport supports can be inserted therethrough to contact the electrical elements. The transport supports may then be secured in place between the elements and the container walls. Upon erection into functioning position, the transport supports are removed and the openings covered with lids so that, if desired, the container can then be filled with gas.

Abstract: A drum for transportation of flexible electrical cables has an oval cross-section and is formed of a spool member comprising a pair of semi-cylindrical sections and means for rigidly maintaining the sections with their diametric surfaces spaced parallel to and facing each other. A planar retainer member of corresponding oval cross-section and uniformly greater dimensions than the spool member is secured to each flat end of the spool member transverse to the axes of rotation of the sections to form a pair of spaced opposed walls of a rectangular slot receiving at least one layer of a continuous length of cable for shipment.

Abstract: The invention relates to a method of manufacturing phase cores for oil-filled cables and apparatus therefor, whereby a current-carrying core is obtained by means of twisting together a number of individual wires, then a paper insulation tape is wound around the current-carrying core and the insulated current-carrying core is reeled on a drum, after which the core is dried, impregnated with an insulating compound and placed in a provisional sealed housing for the period of storage and shipment to the site where the core is to be laid out and inside which the core is subjected to the required electrical measurements and insulation tests. The current-carrying core is placed inside the provisional sealed housing right after it is has been wound with the paper insulation tape.

Abstract: An electrical cable accessory includes a generally tubular member of elastomeric material which is to be installed by placement over a cylindrical surface to grip the cylindrical surface, when in appropriate assembled relation therewith, with a predetermined gripping force established by dilation of the tubular member, the installation being facilitated by introducing fluid under pressure, through means provided in the tubular member, between the tubular member and the cylindrical surface, and simultaneously impeding the escape of the fluid under pressure from between the tubular member and the cylindrical surface by means adjacent one of the ends of the tubular member to cause dilation of the tubular member and establish a fluid layer between the tubular member and the cylindrical surface, thereby reducing the gripping force during installation.

Abstract: A cable for dielectric optical waveguides has the dielectric optical waveguides arranged in segmented compartments. Tensile members are provided in the core of the cable and/or externally of the segmented compartments. This particular cable construction prevents the dielectric optical waveguides being subjected to excessive tensile stress.

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 method and means for grounding the conductive layer of a long power cable is provided wherein at least one metal wire is provided which is connected on one end to the metal sheath prior to the application of an insulation sheath. The outer portion of the metal wire is pulled through an opening made at a predetermined place at the insulation sheath whereupon the hole in the insulation is sealed immediately. Thereafter the metal wire is electrically interconnected to the armor sheath either during or after the application of the armoring sheath layers.

Abstract: This invention provides an improved structure of a floor cable used, for example, for a telephone cord in an office room, and also a method of producing such floor cable. The floor cable comprises a plurality of insulated core wires within a plastic cable sheath.Each of the insulated core wires has a plurality of folded portions along the wire length, and the cable sheath for the core wires has such cross section that a plurality of radial fins are provided on the thin circumference. Thus, the ripping out of the sheath for drawing out the desired wire to connect or branch the floor cable can be easily carried out.