Abstract: A reinforced cable having hauling, electrical and hydraulic lines. The cable has a substantially rectangular cross section and includes at least one internal support to protect these lines by resisting external compressive forces, and yet is bendable about one of its transverse axes for easy storage on and deployment from a drum. The internal support also protects the hauling lines from compressive forces applied longitudinally thereof by resisting radial displacement of the hauling lines. In one embodiment, the cable comprises an armor layer, a pair of engaged channels inside the armor layer, and a pair of corrugated supports inside the channels and fixedly spaced apart. The hauling lines, in the form of wire ropes, are located inside the corrugated supports, while the electrical lines are located inside the channels between the corrugated supports. The hydraulic lines can alternatively be located inside the channels between the corrugated supports, or inside the wire ropes.

Abstract: A gas insulated transmission line has an inner conductor supported by insulators including a fixed insulator and a movable insulator with each having recesses in their outer portion having recessed metallic inserts therein of like configuration. The fixed insulator has disposed within the insert a base of an interconnection strap that extends along the sheath and is welded thereto. An insulating standoff button is further provided on the exterior of the base of the interconnection strap and presses against the outer sheath. An insert of the movable insulator contains a roller assembly. Preferably the roller assembly includes a substantially cylindrical roller of a semi-rigid insulating material that has edges bearing against the outer sheath and conforming to the configuration of the outer sheath by reason of deformation under load.

Abstract: A method and apparatus for closing an exposed area of aerial cable is described. A foraminous barrier is placed around the cable adjacent the exposed area. A cover is placed thereover. The foraminous barrier permits water to pass through the cable without accumulating at the exposed area. However, debris, dirt, and other contaminants are prevented from entering the exposed area.

Abstract: A junction between a pair of insulated electric cables each with a peripheral conducting screen and a protective sheath over the screen is formed by a connector which includes a junction body composed of a tubular body of insulation with tapered ends and with internal and external semiconductive layers, a conductive material, such as a metal braid or ribbon, covering the external semiconductive layer and extending beyond the ends of the tubular body and connected at its ends to the screens of the cables, and an insulating protective tube with flanges at its ends that covers most of the tubular body and the conductive material thereon. A pair of tubular caps having a snap fit at one end thereof with the flanges on the protective tube and extending over the respective cable sheaths complete the connector.

Abstract: The disclosed insulator has one or more sheds integrally formed with the central core so that each shed extends radially outward from the core. Each shed has an annular rib extending downward from the lower surface thereof, and the lower edge of the rib extends outwardly with respect to the central core.

Abstract: An arrangement for and method of limiting the electrical stress in a region of high electric field strength associated with high voltage equipment, especially power cables, employs two overlapping layers of semiconductive material that have different a.c. electrical impedance characteristics to surround the region. The inner layer may be a heat-shrinkable tube having a linear characteristic, and the outer layer may have a non-linear characteristic and be provided as an internal coating on a further heat-shrinkable tube of insulating material. Such an arrangement provides good electrical protection in terms of both a.c. and impulse performance.

Abstract: An hermetically sealed electrical feedthrough assembly including an elongated inner electrical conductor having first and second ends; a glass body hermetically sealed around one length portion of the inner conductor adjacent to the first end thereof; a metal adapter hermetically sealed around the glass body and adapted for mounting in a wall of a housing; a tubular outer electrical conductor enclosing and coaxial with another length portion of the inner electrical conductor, the outer electrical conductor being separated from the inner electrical conductor by an annular volume and having one end portion electrically connected to the metal adapter and an opposite end portion disposed adjacent to the second end of the inner electrical conductor; and electrical insulation filling the annular volume and electrically isolating the outer electrical conductor from the another length portion of the inner electrical conductor.

Abstract: A line tie assembly for securing an elongated line conductor to a line support insulator includes a pair of single-strand line tie components. The line tie components each have a pair of leg portions with helical preformed configurations and a generally U-shaped bight portion integrally interconnecting the leg portions. A generally flat flexible cushioning pad composed of resilient material is pivotally connected to and extends between the bight portions of the line tie components. The bight portions of the respective line tie components hook about a reduced diameter neck portion of the insulator on opposite sides thereof. The leg portions wrap about respective adjacent portions of the line conductor on opposite sides of the insulator for securing the line conductor to the insulator. The cushioning pad is placed between the conductor and a groove in the head portion of the insulator in which the conductor will be retained by the line tie assembly.

Abstract: An electrically nonconductive utility cable guard for use in protecting electrical riser cables from vandalism and rodent damage. The cable guard is a U-shaped open-ended channel formed of a reinforced synthetic resin material having an overall thickness of from 1/4" to 5/8". Molded to the outer edge of each side portion of the channel are short mounting tabs having apertures therein for mounting the guard to an accommodating surface such as a utility pole. In one embodiment the tabs extend from the side walls at an angle of 105.degree.. The cable guard neatly mates with underground conduit extensions due to a novel footing integrally molded to one end of the channel. The footing uses a plurality of stepped lips extending axially and radially away from the channel to mate with the ends of conduit of various sizes.

Abstract: A bullet-proof board includes a pair of steel plates of substantially identical thicknesses that sandwich a thick intermediate layer therebetween and a thin surface layer secured to that steel plate surface which faces a striking bullet. The intermediate and surface layers are made of such chemical fiber cloths or synthetic resin plates which absorb energy of a striking bullet. The bullet-proof board may be formed in the shape of a sidewall of a truncated-cone and secured to a suspension insulator for protecting it against gun shooting.

Abstract: A new jacketing construction for use with coaxial cables provides an improved level of crush and impact resistance. The jacketing construction comprises a plurality of circumferentially spaced tubes each having a nonsymmetrical cross-sectional geometry such that under load, a portion of any radially transmitted force will be dissipated.

Abstract: A gas insulated electrical apparatus comprising a hermetic sheath filled with an electrically insulating gas having a plurality of electrically conductive sheath sections including hermetically fastened flanged ends. A high voltage conductor is electrically insulatably supported within the sheath by an electrically insulating spacer which is hermetically and securely held at its outer periphery between the flanged ends of the sheath sections. An electrically conductive trap ring is inserted between at least one of the flanged ends of the sheath sections and the outer periphery of the spacer. The trap ring defines, between the trap ring and the spacer, a low electric field particle trap in which a low electric field is formed and in which electrically conductive particles can be trapped and retained.

Abstract: A film-covered terminal comprises a foil-like or plate-like electrode terminal with its opposite surfaces covered with sealing films through bonding layers respectively, a rivet of a conductive plastic material inserted through the electrode terminal, the bonding layers, and the sealing films, and welded to the electrode terminal, the bonding layers, and the sealing films, and a soldering member secured to an end portion of the rivet. A method of manufacturing a film-covered terminal is also disclosed which comprises the steps of covering opposite surfaces of a foil-like and plate-like electrode terminal with sealing films through bonding layers respectively, inserting a rivet of an electrically conductive plastic material into a through hole formed through the electrode terminal, the bonding layers, and the sealing films, the rivet having an end portion at which a soldering member is secured, and thermally press-bonding the opposite ends of the rivet.

Abstract: Ceramic elements which can be clamped together by means of a tension rod so as to form a cross-arm assembly for a utility pole. The elements are provided with recesses which receive electrical conductors, with clips being provided so as to retain the conductors within the recesses. The elements thus provide physical support for the conductors and also form the insulating medium for the conductors.

Abstract: An affixation device for an electronic display which comprises a flat platelike rest (1a, 1b, 1c) on which a platelike electronic display (2a, 2b, 2c) is set, support members (43a, 44a, 43b, 44b, 43c, 44c) which hold the flat platelike rest (1a, 1b, 1c) on a wiring board (37a, 37c), and a terminal holding member (7a, 7b, 7c) with a plurality of insertion grooves formed at the edge portion (3Ba, 3Bb, 3Bc) of the platelike rest (1a, 1b, 1c) to hold terminals (50a, 50b, 50c) of the electronic display.

Abstract: Lightning conductor with a piezoelectric device for starting the corona effect. A lightning conductor pole rests on a support fixed by means of a ball. Under the action of the wind, the pole moves out of the vertical position until a shoulder abuts against a flange of the support. With the wind continuing to act on the pole, the latter exerts a considerable force on the support and the reaction force or torque is transmitted to the piezoelectric device by means of the ball.

Abstract: An electrical penetrator employs metal-sheathed insulated conductors that extend completely through and are sealed within a tubular housing. A filler block is disposed centrally within the housing and is surrounded by elastomeric material of a sealing member. Plugs are inserted into opposite ends of the housing so as to compress the elastomeric material and are sealed within the housing. Hollow end caps threaded into the opposite ends of the housing urge the plugs toward the elastomeric material. The metal-sheathed conductors extend through the hollow end caps and through longitudinal passages in the plugs and the sealing member. The conductors are sealed in the sealing member by the elastomeric material, are sealed in the plugs by tube fitting assemblies threaded into the plugs about the conductors, and are sealed in the hollow end caps by potting material.

Abstract: An apparatus for covering electrical equipment which is connected to busbars of a bus system and has a maximum structural height, and wherein the upper sides of the busbars are equidistantly spaced from the clamping faces of holders for receiving and firmly retaining the busbars. A universally applicable cover which is not attached to the individual pieces of electrical equipment, but is adapted to be affixed to the busbars, is provided in that the cover is in the form of a cap having a rectangular cross section and comprising a cover plate and side walls. One pair of side walls extends parallel to the busbars and has an internal height with respect to the cover plate which corresponds to at least the sum of the fastening distance and the structural height.

Abstract: A clamp for a transmission wire has a clamping arm which travels on a captive bolt assembly and which may be pivoted away from a clamp saddle without disengaging the bolt assembly. The clamp may be manipulated with one hand, requiring a wrench as the only tool to tighten or loosen the clamping arm. The clamp is especially suitable for use in live line applications, since the risk of electrical shock is minimized by virtue of its structure.

Abstract: A high voltage composite member, such as a support insulator or a bushing, comprises a core and a sheath of elastomeric material vulcanized to the core and at least one module of elastomeric material having an external shed and an inner cylindrical surface of predetermined normal diameter. The sheath has circumferentially continuous external bulges overlapping and engaging the ends of the inner surface to hold the module permanently in a desired location on the sheath, the module being substantially free of deforming stress. A sealing material provides a sealed interface between the module and sheath.