Abstract: The invention relates to a thermal compensation device having a thermal compensation cell for a hydraulic support cell that has a working chamber and a compensation chamber. According to the invention, each of the chambers of the support cell is connected to a chamber in the thermal compensation cell. Two tightly interconnected pistons with identical working surfaces press on both chambers in the thermal compensation cell. For this purpose, a lateral support system with a reversing lever having at least one hydraulic cell, which has a work cell and a compensation cell, is used. According to the invention, the rotating axis of the reversing lever is arranged at least in one axis running through a hydraulic cell. Each work chamber and the compensation chamber of the hydraulic cell lie opposite each other.

Abstract: An arrangement for locking first and second housings, adapted to connect to each other, includes a pin provided on the first housing and a locking member, with a pair of arms which are provided on the second housing to engage and hold the pin when the first and second housings are connected.

Abstract: A cable transit for protecting against the ingress of liquids and electromagnetic disturbances at a transit location in a wall, including a sleeve and a nut for fitting the transit tightly in the wall. The transit also includes a cable seal which comprises two semi-cylindrical bodies made of a compressible material and together fitting in the sleeve. The semi-cylindrical bodies have an adaptable center hole for accommodating a cable to be passed through the wall, and include several peelable layers. The semi-cylindrical bodies can be pressed together in tight abutment with the sleeve and with the cable, by means of the nut. The standard earthed cable sheet is earthed by means of a conductive screen. At least one peelable layer is removed along a part of the semi-cylindrical bodies, so that the semi-cylindrical bodies will present, at that part, a center hole whose diameter is greater than the diameter along the remaining part of the semi-cylindrical bodies.

Abstract: An annular guard (20) for mounting on a high voltage insulator extends laterally thereof for a sufficient distance so as to prevent small wildlife such as squirrels from forming a short circuit between the opposing ends of the insulator at high voltage and earth potential respectively. The guard (20) is formed in two planar parts (24, 26) that are pivoted together (28) so that they can be relatively rotated between an open condition for mounting onto a live insulator and a closed condition for being secured thereto. Overlapping regions of the two parts are secured together (30, 32, 34, 36, 38) in the closed condition.

Abstract: An electrically conductive cable includes a number of conductive strands which are twined to form a wire rope. The wire rope is drawn through a die to reduce its diameter until the outer surface of the conductor is smooth and the cross section of the conductor is substantially circular. According to a presently preferred embodiment, the electrically conductive cable is successively drawn through four dies of decreasing diameter so that the overall diameter of the wire rope is reduced by at least approximately 18 percent. The resulting electrically conductive cable has the tensile strength advantage and the low resistance advantage of a solid conductor with the flexibility advantage of a wire rope cable. In addition, the smooth outer surface of the electrically conductive cable according to the invention is easily insulated with an extruded material.

Abstract: Hermetically sealed electrical leads emanating from the neck portion of a conductive housing extend through a sleeve member that includes conductive and non-conductive parts. The sleeve member is dimensioned to firmly engage the neck portion of the housing. When so engaged, the electrical leads extend through longitudinal openings in the non-conductive part. In that way, a substantial extent of the leads is shielded. Moreover, the extent to which the leads can be laterally moved with respect to their hermetic seals is thereby significantly restricted.

Abstract: A land electrode has at least one feeding element connected to an electrode line of a high voltage direct current (HVDC) transmission system. The land electrode is in electric contact with a conducting medium and further comprises at least two electrically non-conducting element barriers, spaced apart along the feeding element. Between the element barriers, an active part of the surface of the feeding element is formed, which active part is in electric contact with the conducting medium. The element barriers have a substantial extension outwards from the active part of the surface of the feeding element into the first conducting medium, so as to homogeneize the current distribution along the active part of the surface of the feeding element.

Abstract: An arrangement structure for a door harness for a vehicle includes a wire harness which can be curved to form a loop segment; a harness protector in which the wire harness is held; a guide section in which the harness protector is slidably engaged; a harness accommodating section in which the loop segment of the wire harness is accommodated; and a door structure integrated to the guide section and the harness accommodating section. This configuration improves the productivity of a vehicle and reduces the cost of components.

Abstract: A sea electrode (15) for grounding of a high voltage direct current transmission system comprises an electrically conducting electrode body (1) for connection to the transmission system and at least one ballast (4) located above the electrode. The electrode further comprises a layer (5) of an electrically non-conducting material, located above the electrode body and extending over it, so as to influence the maximum electrical field strength not to exceed a desired level at a point (P) at the edge of the non-conducting layer and thereby also in the sea water outside a zone (35) located below the non-conducting layer and in a vertical direction limited by the edge of the non-conducting layer.

Abstract: A device for compensating length variations of tensioned cables, with a substantially constant tension, including a contrast element, which is meant to be interposed between one end of the tensioned cable and an anchoring element and is adapted to generate an elastic reaction which can vary as a function of the length variation of the cable. The device includes elements for connecting the contrast element to the cable which are suitable to convert the elastic reaction of the contrast element into a substantially constant tension applied to the cable, regardless of its length, over a preset length variation range.

Abstract: A cable splice closure is provided including first and second casing parts, opposing edges of which may be brought together to close the closure, and a series of protrusions extending along the exterior of the first casing part adjacent to the edge of the first casing part. Also included are a series of openings extending adjacent the edge of the second casing part in an extending wall which, when the closure is closed, overlaps the exterior of the first casing part such that each protrusion is resiliently interlocked with a respective opening. The second casing part further includes a plurality of apertures in its extending wall for receiving a lever to force the casing parts together such that the respective protrusions and openings interlock and to force the casing parts apart such that the respective protrusions and openings disengage.

Abstract: A holding block for wires having a plurality of grooves in a surface for receiving a plurality of wires in spaced-apart relationship including a plurality of sets of openings in the block straddling each wire in the plurality so that a retaining clip can be introduced into each of the respective sets of openings for retaining the wire in position. Each clip includes a pair of barbed legs inserted into the respective sets of openings so as to mate with and engage with notches or points along the length of openings. The clip employs a pressure-bearing member midway between the barbed legs for forcible engagement with the insulated portion of each wire so as to hold the wire in position on the block. Staggering of the clips between adjacent wires places the plurality of wires and clips close together.

Abstract: An elastomeric surge arrester housing includes a sleeve having a tubular core and radiating sheds. The sleeve is molded in a first configuration and, when the core is radially stretched, assumes a second configuration in which the sheds assume a downwardly extending configuration. The sheds, in the second configuration, include an upper surface having a generally frustoconical shape. The housing may be made using conventional molding techniques, but requires substantially less material than if the housing were molded directly into the second configuration.

Abstract: There is disclosed a one-piece ceramic terminal suitable for use for mounting an electrical conductor in insulated relation to a supporting wall of a heating assembly. The ceramic insulator has a central block adapted to pass through a central portion of an aperture in the supporting wall. This aperture has two radially extending slots extending outwardly of the central portion. The ceramic terminal includes a first pair of diametrically opposed radially extending wings which are sized to pass through the radially extending slots in the aperture. The ceramic insulator has a second pair of diametrically opposed radially extending wings which are sized larger than the slots in the aperture so as to engage one surface of the supporting wall. Once the first set of wings pass through the aperture and corresponding slots, the ceramic insulator is rotated such that the second set of wings engage the other surface of the supporting wall so as to mount the insulator relative to the supporting wall.

Abstract: An electronic device is provided which is configured for attachment to a coaxial cable having a central conductor and an outer conductor. The electronic circuit includes connection conductors that each have a central conductor connection end that is configured to have a portion for engaging and penetrating into the central conductor and to have a further portion serving to impede the connection conductors from becoming withdrawn from the coaxial cable. The configuration of the ends of the connection conductors can be that of an arrowhead. An enclosure is provided around the electronic circuit and the portion of the coaxial cable to which the electronic circuit will be coupled by the connection conductors. In addition, the central conductor are made discontinuous between the points at which the connection conductors engage into the central conductor.