Abstract: The device, in the active position thereof, provides for a connection between stretches of raceway, each of which includes: a base section with external walls and internal walls, providing for the existence of at least two sub-raceways, and a cover section. The internal surfaces of the bottom walls form between them a dihedral. For each sub-raceway, the device also includes a dihedral closing member, each provided with two end portions which, in the active position of the device, are respectively parallel to the internal surfaces of the bottom walls. Fixedly attached channel-like members project longitudinally from said end portions for connection to the walls of the base sections; and a covering member adapted to cover the closing members at least in part.

Abstract: A support for busbars of a busbar system, which can be fixed in place on a fastening surface and which forms a receptacle which is adapted to a width and a thickness of the busbar. A later attachment to the pre-positioned busbar system is made possible due to correspondingly divided supports, if the support has two L-shaped receiving elements, whose legs, aligned parallel with the fastening surface, determine the width of the receptacle, and which have on front ends facing each other dovetailed strips and dovetailed grooves aligned with each other, which extend in a longitudinal direction of the busbar to be inserted into the receptacle. The legs of the receiving elements are oriented perpendicularly with respect to the fastening surface and determine the height of the receptacle. The facing sides of the two receiving elements have projecting support strips, which can be inserted into longitudinal grooves of the busbar, to be placed into the receptacle.

Abstract: An enclosed high-voltage electric line having a high-voltage electric conductor (2) which is supported inside an enclosure (1) by one or more supporting elements (3, 4, 5), each with at least one insulator part (6, 7, 8). The conductor has at least one borehole (12, 13, 14) to accommodate one end of each supporting element (3, 4, 5). At least one supporting element has a metallic sleeve (9, 10, 11) that passes at least partially through the borehole, is supported in the area of the edge of the borehole, surrounds part of the insulator part and forms in its interior a stop (18) that limits displacement of the insulator part into the borehole.

Abstract: A device for attaching busbars of square or rectangular cross section on a support rail using electrically non-conducting support elements, which can be connected with the support rail and form a busbar receptacle adapted to the cross section of the busbar. With a simple fastener, assembly is considerably simplified because two post-shaped supports per busbar can be attached as support elements on the support rail, wherein spacing between the supports is matched to the width of the busbar and a height is matched to the thickness of the busbar. A base plate is arranged between the two supports, which insulates the busbar receptacle against the support rail and which is captively held between the holders. The ends of the supports facing away from the support rail can be closed by a strip.

Abstract: A cableway of the kind which is constituted by a number of longitudinally extending thread elements positioned at a distance from each other as well as transversely extending thread elements connecting the longitudinally extending thread elements with each other is provided with a device in the form of partition elements for dividing the cableway into at least two longitudinally extending compartments occupying the whole height of the cableway.

Abstract: A non-linear raceway section for containing fiber optic and Category 5 signal conductors and formed by intersecting raceway runs coupled together in a region of intersection defines a non-linear raceway channel having an exposed angular corner therein. A radiused insert releasably retained within the raceway channel defines a portion of the channel and isolates the angular corner from the channel.

Abstract: A compact electrical bus includes an axially elongated conduit, an axially elongated insulator within the conduit and spaced apart axially elongated electrical conductors lying along the insulator for carrying electrical power. Optionally, fiber optic cables may be axially routed through the conduit.

Abstract: An outside corner fitting including an arcuate channel having a radius of curvature greater than a predetermined minimum bend radius for the cable to be installed in the duct system. A first embodiment of the invention fits within straight ducts and allows the straight ducts to be placed flush with the outside corner of the wall. A second embodiment features an outside corner fitting that abuts against the straight ducts and is mounted directly to the wall. Both embodiments include a cover having a first edge and a second edge, the first edge being shorter than the second edge. The shorter first edge minimizes the gap between the cover and the wall if the wall is not exactly 90 degrees.

Abstract: A flexible partitioning device (10) for a tubular conduit (11) includes an elongate web member (22) which can be provided with a plurality of notches (32) spaced substantially regularly along its length to permit multiplanar articulation thereof. The web member (22) may also be provided with a longitudinally extending strength member (20) and may also include at least one bore (50) in which may be positioned a transmissive element (51). The partitioning device (10) may be connected to a duct rodder (61) and pushed through the conduit (11) or alternatively, the duct rodder (61) can be attached to a paddle (64) which is pushed through the conduit (11). Then, the partitioning device (10) is attached to the duct rodder (61) and pulled back through the conduit (11). To assist in pushing the rodder (61) through the conduit (11), an air moving device (73, 76) may be attached to one of the ends of the conduit to move air in the same direction of travel as the rodder (61).

Abstract: A layered construction of busbars and insulating plates wherein the lower surfaces of the busbars on the lower surface of the upper insulating plate are opposed to and spaced apart from the upper surfaces of the busbars on the upper surface of the lower insulating plate by a specified distance T. Clearance providing ribs project from the lower surface of the upper insulating plate and the upper surface of the lower insulating plate and are in contact with the surfaces of the busbars.

Abstract: An electric power busway system has multi-phase power bus bar conductors that are each housed within an individual duct. Individually housing the bus bar conductors provides short-circuit bending resistance as well as superior thermal heat dissipation characteristics because of the improved conductive heat transfer between the bus bar conductors to the individual housing, as well as convective heat transfer from the individual housing assemblies into the ambient air. Wedge-type support braces retain each housed bus bar in position and provide short circuit support.

Abstract: An electrical contact is mounted in the insulated body portion and is locked therein between a pair of shoulders by a flexible tube. An electrical connector has an insulator body portion which can be extended through an opening of a housing and is then upset by ultrasonic welding to lock it to the enclosure. Electrical leads are inserted through the electrical contact and are connected to it by crimping and/or welding to provide an electrical connection.

Abstract: An elbow for changing the run direction of a pre-bussed rigid conduit electrical distribution system. The elbow has a number of individually insulated electrical conductors each of which is formed to a predetermined angle. The conductors are enclosed within a hollow housing which is formed to the same predetermined angle such that it will enclose the electrical conductors. A uniform and continuous support is provided for that portion of each electrical conductor which is enclosed within the housing.

Abstract: A multi-conductor parallel array armored electrical power cable includes a pair of longitudinal spring members. The longitudinal spring members help maintain compactness between conductor assemblies within the power cable after a protective armor has been applied. The longitudinal spring members are installed between the outer most conductors and the armor of the cable. The unique shape of the spring members along with their placement during assembly absorb much larger tangential forces normally accepted when applying the armor to the cable. The spring members become distorted from their original shape and, as the armored cable is further formed to its final shape, the longitudinal spring members substantially return to their original shape to urge the conductor assemblies together.

Abstract: A wire spacing device for protecting a signal line from the interference of a strong electromagnetic field from a power line by keeping the signal line separate from the power line by a predetermined distance includes a center bar extending in first and second hooks provided on each end of the center bar. Each of the first and second hooks is formed by an elastic material in a C-shape configuration having a gap smaller than the diameter of any of the first and second wires. When either one of the first and second wires is pressed in the gap, the hook resiliently opens the gap and passes the wire therein, and then the hook resiliently returns to the original position to hold the passed wire therein.

Abstract: A support arm for a control device and the like, the hollow profiled walls of which enclose an installation conduit for receiving cables or the like. The support arm, having a simple geometry and great rigidity, comprises a plurality of screw channels which project inwardly and extend in a longitudinal direction of the profiled section and are formed in the installation conduit. The profiled section comprises two lateral walls which are positioned parallel to each other at a distance and are connected at their ends by semicircular connecting elements in the shape of an oval. The screw channels divide the installation conduit into chambers which are spatially connected to each other.

Abstract: An apparatus is providing for signal communication between the interior and exterior of a pipeline. A fitting is secured to the external surface of a pipeline, the fitting having a branch opening therein communicating with the pipeline interior. A plug member is sealably positioned in the branch opening, the plug member having a passageway therethrough. At least one conductor is received in the plug member passageway providing an apparatus to conduct an electrical signal from within to the exterior of the pipeline. A potting compound fills the passageway surrounding the conductor to seal the conductor in the plug against the leakage of liquids or gases.

Abstract: A flexible partitioning device (10) for a tubular conduit (11) includes an elongate web member (22) which can be provided with a plurality of notches (32) spaced substantially regularly along its length to permit multiplanar articulation thereof. The web member (22) may also be provided with a longitudinally extending strength member (20) and may also include at least one bore (50) in which may be positioned a transmissive element (51). The partitioning device (10) may be connected to a duct rodder (61) and pushed through the conduit (11) or alternatively, the duct rodder (61) can be attached to a paddle (64) which is pushed through the conduit (11). Then, the partitioning device (10) is attached to the duct rodder (61) and pulled back through the conduit (11).

Abstract: A self-supporting electric conductor arrangement, in particular a coil, suitable for arrangement in a vacuum container, contains, as a supporting structure, a tube (18a) of insulating material, e.g. quartz glass, in which is arranged an electric conductor (18b) in the form of a flexible chord or an electrically conducting layer precipitated on the inner wall of the tube. A preferred field of application is a coil-shaped insulated antenna situated in the plasma for a high frequency plasma generator.

Abstract: An electrical distribution system comprising one or more tracks having current-carrying conductors and ground conductor for mounting on wall surfaces. The tracks are slidingly received in connecting slots of electrical connector housings to connect the tracks to electrical outlets, or to interconnect sections of tracks together. More particularly, with the present invention it is not necessary to strip the ends of the tracks to expose connector ends to interconnect them with terminals in the connector housings. An end portion of the track is merely slid within a connecting slot of the housing. Electrical receptacles are also connected at any desired location along the track. The electrical distribution track can also be incorporated in an extruded baseboard together with a telephone line track to permit connection thereto of electrical receptacles as well as alarm systems, telephone jacks, fire detectors, surge protectors, etc.

Abstract: A cable for holding a bundle of cable lines of different sizes having a channeled body (1) which can be anchored to a support, the body having a baseplate (2), two side walls (3 and 4) and a plurality of covering brackets (6) integrally hinged to the upper edge of one of the walls (3). The brackets have at their free ends latching lugs (10) which, when the brackets are closed, interact with corresponding locking tabs (8) on the wall (4). To be able to bundle together the cable lines in the cable duct and thus provide protection against rattling noises, toothed cable ties (12), which extend around the inner sides of the channel body, are provided in the regions of the covering brackets (6), the cable ties being connected at one end to the body in the region of the wall (4) and, when the brackets (6) are closed, interacting at their free end with a cable tie locking tooth (15).

Abstract: A housing for supporting a plurality of cables in which separate channels are formed in the housing and each channel is defined by a pair of side walls at least one of which is provided with flexible tab members having a detent device that cooperate with similar detent device formed on the opposing wall for retaining a cable within an associated channel.

Abstract: An insulated duct, for example for electric cables, comprises first and second co-operable members forming a duct therebetween and toggle clips to secure the first and second members together such that the first and second members are urged towards each other. Each member comprises a base of thermal insulation material and at least one wall portion of thermal insulation material extending from the base of at least one of the members. An external skin is provided on the thermal insulation material, and an internal lining is provided on the thermal insulation material. The thermal insulation material, the external skin and the internal lining of the first member are dimensioned substantially to abut against the thermal insulation material, the external skin and the internal lining respectively of the second member.

Abstract: A housing for telecommunications equipment has therein a vertical passageway extending in said housing alongside racks for holding such equipment and between upper and lower entry ways provided by said housing to admit into said passageway from either above or below one or more external cables for servicing equipment in the racks. For each rack there is a flexible extension cable having a front end with a coaxial fitting thereon disposed in the passageway and running from such front end to the corresponding rack to there be coupled with a cable receptor connector. The coaxial fitting on each extension cable is coupleable to an end coupling on the free end of a corresponding external cable. The coaxial fitting on each extension is mounted on a rockable platform pivotally supported from the corresponding rack and angularly selectably adjustable between and secured at two positions of the platform at which the fitting thereon points, respectively, upwardly and downwardly.

Abstract: Cladding structure, in particular for optical cables (1), for use in high-voltage environments, comprising at least one elongated plastic outer sheath (8), having capacitive elements (C.sub.1, C.sub.2, C.sub.3 . . . C.sub.n) electrically connected in series in the longitudinal direction of the cladding structure. Said capacitive elements are formed by electrodes (5, 7, 9; 10, 11, 12) underneath the outwardly facing side of the outer sheath (8). Said electrodes (5, 7, 9; 10, 11, 12) can be situated in a mutually offset manner in radial and/or longitudinal direction of the cladding structure. Damaging of the cladding structure due to corona discharge or tracking phenomena is effectively reduced by said series connection of capacitive elements (C.sub.1, C.sub.2, C.sub.3 . . . C.sub.n).

Abstract: A cable management apparatus is used in conjunction with a wall panel system having an internal space. The apparatus comprises a plate with spaced apart retainer members extending outward from the plane of the plate. Each retainer member defines at least a partial enclosure sufficient to prevent cables placed therein from slipping out laterally. The plate is fastened to the wall panel system at a desired location within the interior space to hold and separate cables.

Abstract: A plurality of individual electrical conductors are held together in a bundle to form a power supply cable, for example, for installation in an aircraft. For this purpose a conductor securing device has a disk divided into two half disk sections interconnected by a snap-on connection. Each half disk section has outer elements for holding individual conductors and a bow-shaped shell located centrally inwardly so that two shells of two interconnected half disk sections hold at least one further electrical conductor between the shells. Each shell extends with a shell extension laterally and axially out of its half disk section and the shell extension has as a shoulder for axially retaining a strapping belt.

Abstract: In the case of a spinning or twisting machine, it is provided that the spindles are each driven by separate electric motors which, together with their bearings, are arranged in a spindle rail constructed as a longitudinal duct, the stators and the rotors of the electric motors being disposed in the longitudinal duct in an exposed manner.

Abstract: A multiple conductor dielectric cable assembly and method of manufacture is disclosed. The cable assembly comprises an elongated housing in which grooved damper elements are mounted in a stacked relationship at intervals along the housing. Electrical conductors pass over and under the grooves of the damper elements along a path between connections in the walls of the housing. The grooves of adjacent damper elements are oppositely oriented and offset to provide deviations of the conductors from a straight line, thereby holding the conductors under tension and spaced from other conductors and the walls of the housing. Any desired dielectric medium, such as air or a vacuum, fills the interior of the housing to surround each conductor. In the manufacture of the cable assembly, a first set of damper elements, with the grooves facing upwardly, is dropped into supports in the housing. The conductor elements are laid into the upwardly-facing grooves of the first set of damper elements.

Abstract: A baseboard assembly for indoor wiring and for the mounting of quick joint type receptacles, which includes a top cover board releasably retained with a front face board to define therein several stories of conduits for the arrangement therein of power cords, telephone cables, antenna conductors and other conductive wires. The top cover board and the front face board are respectively divided into a plurality of independent partitions having each a releasable strip corresponding to the conduits therein, such that either releasable strip can be removed for the mounting therein of a quick joint type receptacle.

Abstract: An arrangement for improving the electromagnetic compatibility of an electrical device provided with an interference irradiation susceptible conduit, especially an electronic control device of an internal combustion engine of a power vehicle comprises at least one conductor, at least one conductor surrounded by a dielectric, at least one screen, a holding unit for holding the conductors at a predetermined, selectable distance from the screen in a mounting position, and a mass which forms the dielectric and surrounds the conductors in the mounting position.

Abstract: In a method and apparatus for inhibiting ice mass formation around equipment housed in a chamber subject to water penetration, a plurality of compressible, non-absorbent, smooth-surfaced blocks are packed around the equipment to substantially fill the chamber. The blocks are provided with handles for their placement in and removal from the chamber. The blocks are particularly useful for inhibiting ice mass formation in shallow underground chambers housing telecommunications cable equipment.

Abstract: The invention deals with a device and method of using such device to seal the duct about an elongate object such as a pipe or cable extending therethrough into a sewer, cable vault or the like. The device consists of two or more collars of a conforming and compressible material, such as sponge rubber, in a cylindrical shape and having a reinforcing nylon tube extending axially therethrough. Each collar is formed about the elongate object and placed within the duct. Compression bands are placed about the collars to compress them in the direction of the elongate object and expand them each in planes perpendicular thereto to more completely engage the outer surface of the elongate object and the inner surface of the duct. A compliant sealing material may be placed upon one interior face of one of the collars to be spread and extruded beyond the collar periphery to better seal to the elongate object and duct.

Abstract: A plurality of streamer-cable bulkheads mounted within a streamer cable in cascade for radially scattering tube-wave noise from a streamer-cable. Each bulkhead consists of an annular body with conical surfaces converging at a desired angle, extending outwards from both ends of the annular body. An axial hole and a plurality of off-axial holes extending through the bulkhead for receiving therethrough, electrical conductors and stress members respectively. Noise traveling within the tube in a waveguide mode, impinges upon the conical surfaces of the cascaded bulkheads, and is reflected out of the streamer-cable jacket.

Abstract: This invention is generally a longitudinally slit tubular molding member that can be opened up or closed so as to receive electric wires extending therethrough, and comprising a base mountable on a wall and a pivotable cover to enclose the wires, and including hooks for attaching the wires inside the molding member.

Abstract: A plug assembly for encircling a cable and encapsulating it within a conduit includes a first and second ring members, each of which is formed of resilient material and has an inner wall conformable to a circumferential portion of the cable's outer surface. A rigid spacer is disposed between the first and second ring members for defining a sealant-receiving channel therebetween. Sealant material, such as a silicone compound, is dispensed within the channel, and a compression means associated with the plug assembly is operable for deforming the first and second ring members axially and radially, thereby to deform the channel so that at least some sealant material received in the channel is displaced into the region between the inner walls of the first and second ring members and corresponding portions of the cable's outer surface to provide a cushion/sealant between the ring members and the cable.

Abstract: A fireproof covering for protecting heat-sensitive material and structures, said covering comprising: pre-shaped mineral wool components, molded to rigid, substantially self-supporting forms with a binder, for surrounding the heat-sensitive material and structures; and, a fireproof coating at least on the outside of the rigid mineral wool components, the coating progressively sintering onto the surface of the rigid mineral wool components under fire conditions and supporting the components as the binder progressively decomposes, whereby heat-sensitive material and structures can be protected from fire conditions for extended periods of time.

Abstract: This invention relates to a spacer clip for an injection molding electric heating element. A number of clips, each formed of a continuous band, are slipped over one end of the heating element and slid along to predetermined positions. Each clip is then crimped to the heating element in that position which forms a finger which extends radially from the heating element in a predetermined orientation. The heating element with the spacer clips attached is located in a suitable mold for casting and the fingers of the clips locate each coil of the element with sufficient clearance from the mold and the other coils. The thickness of the conductive heater cast around the heating element is important to provide uniform heat transfer. The spacer clips are formed of a material such as stainless steel which has sufficient pliability to be securely crimped to the heating element, but sufficient strength to reliably retain the heating element in position.

Abstract: A gas insulated transmission line includes an elongated outer sheath, a plurality of inner conductors disposed within and extending along the outer sheath, and an insulating gas which electrically insulates the inner conductors from the outer sheath. A support insulator insulatably supports the inner conductors within the outer sheath, with the support insulator comprising a main body portion including a plurality of legs extending to the outer sheath, and barrier portions which extend between the legs. The barrier portions have openings therein adjacent the main body portion through which the inner conductors extend.

Abstract: A bulkhead for a marine seismic streamer section comprises a generally cylindrical body of rigid tough plastics material such as polycarbonate polymer, having an axial hole therethrough, through which passes the electric conductor bundle of the streamer section, and peripheral radial slots with hemicylindric bottoms receiving the tension lines of the streamer section. The bulkhead has an annular circumferential groove which is radially as deep as the axes of the bottoms of the slots and in which is disposed a belt of phosphor bronze, or stainless steel, or other strong corrosion resistant metal. The belt holds the tension lines in the slots and holds together the bulkhead, which is made of two sectors. One sector is greater than 180 degrees in extent and the other is less than 180 degrees in extent, e.g. the one sector may extend 240 degrees and the other 120 degrees.

Abstract: A seal plug for conduits is disclosed having a plug core including at least one radially-expansible seal member for sealing the conduit in which it is disposed, while permitting passage of cables or the like therethrough. Until required for the cable or cables, the passages in the seal plug are closed by removable pin inserts, retainer means being provided to hold the inserts in place. The plug includes longitudinal compression means to bring the seal member into sealing contact with the conduit wall. Each passage may open to the circumference of the respective seal member via slits to permit sideways insertion of the cable therein.

Abstract: A magnetic sensor assembly including an elongated support is supported in a tubular housing by a pair of tapered foam sleeves that space the support from the inner surface of the housing and that resist movement of the assembly in the housing in a direction opposite to the direction of insertion of the assembly into the housing. The sleeves, which are either continuous hollow cylinders or are formed of wound strips, are attached to the support by adhesive tape at the leading end of each sleeve.

Abstract: A specially configured cable, which, in use, has a cross section which is mmetrical to a vertical line, but asymmetrical to a horizontal line, is used for an intrusion detection system. It comprises an external sheath, which may be round or rectangular in cross section. An inner conductor is positioned below the center of the cable. It is supported in place by a thin, substantially flat, sheet of insulating material, which is attached to the inner surface of the outer sheath. This particular configuration maximizes the change in capacitance caused by an intruder passing over the cable. The cable is connected to a time-domain reflectometer, which can display on a screen the location of the intrusion with respect to an end of the cable as well as the probable type of intrusion.

Abstract: The invention provides an assembly for accommodating service lines which comprises a length of ducting, a block of structural cellular material which fills the internal cross section of the ducting over at least a part of the length of the ducting, said block having cell walls which define cells which extend in the length direction of the ducting and on the cell walls a coating of intumescent material expandable to close the cells under fire conditions. With the block positioned where the ducting passes through a fire-resistant wall, the spread of fire through the ducting is usefully opposed. Using thermoplastic ducting, which has heretofore been contra-indicated, results superior to those obtainable with steel ducting are achieved.

Abstract: A measuring transformer for a fully-insulated, metal-clad, high-voltage installation equipped with a metal outer tube containing a high-voltage conductor includes a tube member arranged within the metal outer tube in surrounding relation to the high-voltage conductor. The tube member constitutes a surface-type electrode an conjointly defines with the high-voltage conductor a high-voltage capacitor. A low-voltage capacitor is connected to the high-voltage capacitor so as to conjointly define therewith a capacitive voltage divider. A transformer core unit including an iron core and a transformer winding system mounted on the iron core is also provided. The transformer core unit is arranged on the outer surface of the tube member whereby the tube member carries the transformer core unit inside the metal outer tube of the high-voltage installation.

Abstract: A voltage transformer for an insulated high-voltage switching apparatus of the type including a metallic outer tubular casing in which an electrical conductor is disposed, and a tubular sleeve disposed about the conductor within the casing. The sleeve forms both a surface type electrode and in conjunction with the electrical conductor of the apparatus, a high potential capacitor. The improvement of the invention comprises a coupling arrangement, fabricated of electrical insulation material, which is fastened at one end of the tubular sleeve and is coupled to the casing of the apparatus. A support arrangement, also fabricated of electrical insulation material, is fastened at the other end of the tubular sleeve and disposed in engagement with the inner surface of the apparatus casing. The coupling and support arrangements function in conjunction with each other to support the tubular sleeve in the apparatus casing about the electrical conductor.

Abstract: A measuring transformer arrangement is provided for a fluid-insulated high-voltage installation with metal encapsulation carrying several conductors. The measuring transformer arrangement includes at least one conducting or semiconducting tube surrounding each conductor whereat at least one current transformer core with a system of secondary windings mounted on it is attached on the outside of the tube. The tubes are connected with each other and are attached to the metal encapsulation.

Abstract: An improved voltage transformer for use in a gas insulated or liquid insulated high voltage switching installation enclosed within a metal encapsulation and carrying several conductors, in which each conductor is surrounded by a tube which is conductive at least on its surface which faces the conductor with the tubes connected to each other through attachment means which attach them in an insulated manner to the metal encapsulation. The resulting arrangement causes each tube together with the conductor within it to form a high potential capacitor which can be coupled in series with a low potential capacitor to form a voltage divider with the voltage taken off the low potential capacitor and used to provide an indication of the voltage present on the conductor. Tubes which are plastic with conductive coatings and metal tubes are disclosed with the tubes fastened to at least one support disk of insulating material which is then attached to the metal encapsulation.