Abstract: An electrical bus isolation system includes a pair of bus bar supporting members, each of which includes a first substantially flat surface portion configured to retain a first bus bar, and second and third substantially flat surface portions each disposed on opposite sides of the first surface portion, and defining an offset in height from the first surface portion. The second and third surface portions are configured to retain opposite lateral sides of a second bus bar when the pair of supporting members are operatively engaged, with corresponding second and third surface portions facing each other such that the first bus bar is retained in a fixed position relative to the second bus bar in a parallel spaced relationship thereto and at a distance determined by the offset in height. An air gap between the bus bars electrically isolates the bus bars and prevents corona discharge between the bus bars.

Abstract: Bar composed of an aluminum section with which copper contact jumpers are brought into intimate contact at the end or at regular intervals.The flanges of jumpers 20 have silver plated areas A on their internal surface, for example in the form of strips 24 transverse to the length of the bar and silver plated areas B on their external surface located between the areas A and the web of the jumper. The internal silver plated areas contribute to welding the jumper to the section and the external areas are used for making contact with junction devices or fish plates.

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 bus bar type conductor arrangement for a vehicle-type electrical junction box, used to electrically connect components such as relays and fuses with wire harnesses from vehicle electrical systems. Three dimensional bus bar conductors are mounted on a three-dimensional array of post-type mounting points formed in the junction box, such that the conductors can cross paths and connect components and terminals of varying height in the junction box. The conductor arms are preferably coated between the conductive contact ends with an electrically insulating material, and can include intermediate conductive regions adapted to be mounted to components or other bus bars in the same fashion as the conductive ends.

Abstract: The neutral cross bus in a switchgear assembly formed from two sets of side-by-side cabinets includes first and second neutral buses for the respective sets of cabinets. Each neutral bus is made up of a stack of flat conductors oriented horizontally in a main section extending across the cabinets of the set and vertically in a terminal section confronting the terminal section of the other neutral bus. The vertically oriented terminal sections are easily bolted together despite their limited accessibility when the two sets of cabinets are installed side-by-side. The flat conductors of the neutral cross bus are supported in their horizontal main sections by spaced supports formed by planar members with spaced horizontal slots set on edge and mounted by end flanges.

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: A metal-sheathed high-voltage line with a high-voltage conductor and a metal sheath surrounding it coaxially has at least one securing element for a disk-shaped insulating support which has a first and second ring), each of which is concentric with the high-voltage conductor and each of which has a web projecting radially with respect to the longitudinal axis of the high-voltage line, where the insulating support is secured between the webs of the rings. The rings are jammed tightly by a wedge action on the high-voltage conductor.

Abstract: An assembly for both distributing electricity and limiting the flow of current has a housing, input conductors, first output conductors, second output conductors, an insulating spacer block, and limiters. Portions of the input conductors and first output conductors overlay each other with the insulating spacer block therebetween. The limiters electrically connect the input conductors to the output conductors with pairs of limiters connected between a single input conductor and separate output conductors.

Abstract: An electric power busway system comprises a bus bar support housing with the opposite side plates of the housing shaped with troughs to hold the bus bars in their relative positions, preventing the bus bars from moving towards or away from one another and providing the necessary short-circuit protection and bending resistance. The metal side plates are preferably fastened together without the use of fasteners or the need for welding, through the use of a punch and die tool set. A protective insulating sheet is sandwiched between the insulated bus bars and the housing to protect the bus bar insulation coating from ruptures or tears. Clamping blocks are provided outside the protective busway housing to apply friction on the bus bars within, keeping them from sliding out of the housing assembly. The integral busway housing and clamping serve as a ground conduction facility, with the clamping blocks providing a mechanism to connect the busway section to an adjoining section.

Abstract: A busbar device with an insulating support block with two assemblable fixing parts bounding internal housings to receive multipole current conductors, each housing being formed by a semi-open recess. The bottoms of the recesses are located in distinct planes extending in a parallel manner along the longitudinal direction of the profiled sections, and separated from one another by a predetermined transverse pitch, and the profiled sections of the current conductors are staggered at regular intervals in the extension direction of the assembly interface of the fixing parts to form a stepped structure.

Abstract: Electrical distribution wiring system comprising a flexible element equipped at each extremity with a junction member to a rigid element.The junction member 30 includes a retaining piece 40 and a positioning end-piece 50 of the flexible conductors, as well as a metallic sleeve 60 covering and holding in place the end-piece and the retaining piece.

Abstract: A three-phase electrical distribution system includes an elongate housing of substantially square cross-section and a plurality of frames connected between the top and rear walls of the housing. Each frame includes three sections arranged in a stepped manner to locate and mount one power phase busbar by a standoff insulator near the rear wall, a second power phase busbar forwardly and vertically above the first busbar, and a third power phase busbar located vertically above and forwardly of the other busbars to minimize the cross-sectional housing space while spacing such busbars to prevent arcing therebetween or arcing to the housing or to the frames. The ground and neutral busbars are mounted via insulating standoffs to the bottom wall of the housing forwardly of the power busbars. An access opening is located in the bottom wall at various intervals to provide for hookup of power cables to the busbars via an openable front wall spanning between a pair of adjacent frames.

Abstract: A power busway distribution section length which may be adjusted before, during, or after installation to better facilitate proper busway location and reduce installation and modification costs. The section length comprises two busway stubs which slide independently between a center busway splice-plate joint. Overlapping sheet metal enclosures are used to provide protection from inadvertent contact with live bus bars and allow the busway section length to be adjusted to a discrete length.

Abstract: A bus-bar conductor system for electrical high voltage systems, wherein electrically conducting bus-bars are mounted in an enclosing compartment. A common support body for supporting one or more supporting insulators, to which the bus-bars are attached, extends freely or essentially freely in the compartment in the longitudinal direction of the bus-bars. The support body is preferably supported by support elements arranged at the outer ends of the compartment. The support body can itself be designed as a conducting bus-bar.

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: An device for changing the run direction of a pre-bussed rigid conduit electrical distribution system. The device has a number of electrical conductor assemblies which are substantially enclosed within a hollow housing. The housing has three legs which are integrally joined at a common point. Each leg has an associated end from which an equal length of each electrical conductor assembly extends. A uniform and continuous support is provided for that portion of each electrical conductor assembly which is enclosed within the housing.

Abstract: A gas-insulated single-phase cable for long-distance transport of electricity under high tension, the cable including a cylindrical steel case filled with nitrogen under a pressure of at least 10 hectopascals, an aluminum- or copper-based metal conductor held axially inside the steel case by closed insulating cones, and an aluminum case disposed at a short distance from the steel case and constituting a magnetic screen protecting the steel case from the magnetic field generated by the current carried by the conductor. The steel case is separated from the aluminum case by rings of plastics material or of filled polymer, such as polytetrafluoroethylene. Each rings is placed in a groove in a metal collar, with two adjacent portions of the aluminum case being welded to the collar.

Abstract: A gas-insulated high-tension three-phase electricity line which includes a cylindrical steel case and three conductors disposed parallel to the axis of the case, and a magnetic screen constituted by a cylindrical aluminum case placed inside the steel case and very close thereto. The conductors are held by a plurality of sets of three insulating arms secured to one another, the conductors being free to slide through openings formed in the arms, the aluminum case being separated from the steel case by strips of plastics material or of filled polymer having a low coefficient of friction.

Abstract: Rectangular bus bars alternatively engaged in either of a pair of crossed slots in a support block secured in a panel board are locked in place by a locking device incorporated in a cylindrical terminal portion of each bus bar. The locking device includes an expandable ring seated in a circumferential groove in the cylindrical terminal portion. A pair of actuating pins are urged radially outward in diametrically opposed bores to wedge the expandable ring against the support block, by a tapered screw threaded into a central longitudinal bore in the terminal portion of the bus bar.

Abstract: A busway and insulator assembly for use with the busway are described. The insulator assembly provides access to the conductive busbars through the busway housing and is configured for use with plug-in tabs which extend from the outer edges of the busbars. The insulator assembly includes a base having openings therethrough for cooperation with each plug-in tab. Insulated stabs extend from the insulator base and are disposed between the plug-in tabs-to prevent arcing between the tabs and exposed areas of the busbars. Additionally, the insulator base includes track members for slidably receiving an insulated cover which may be moved into a position blocking access to the plug-in tabs or moved to a position permitting access to the plug-in tabs.

Abstract: An electrical power distribution busway system which includes a housing having side channels and top and bottom channels is described. The channels enclose and secure at least one stack of conductive busbars in place. At least one of the top or bottom housing channels is adjustably mounted between the side channels so the overall housing may be adjusted to accommodate various arrangements of busbars or busbars having different thicknesses. In a preferred form of the invention, the adjustable channels include holes which are aligned with elongate slots through the side channels. Fasteners extending through the aligned holes and slots allow the adjustable channel to be moved and fixed at different locations along the elongate slot.

Abstract: A low inductance bus bar arrangement suitable for industrial voltage levels, and for power applications contains two or more elongate electrical conducting bars having rounded edges. Strips of dielectric insulating material are located between two of the elongate electrical conducting bars. The conducting bars are oriented in substantially parallel relationship to one another with the dielectric insulating material having a height of the cross-section thereof substantially greater than the height of the cross-section of the conducting bars. The bus bar arrangement also provides low inductance to the connecting devices.

Abstract: In making busbar conductors, this invention saves the material of busbars that form the circuits on the boards to lower the cost, and improves the workability of the busbars to be punched. In busbar conductors each having a plurality of busbars of desired patterns arranged on an insulating substrate, the busbars are punched out selectively from two or more conductive materials with different conductivities.

Abstract: In a panelboard (30) of the type having a main circuit breaker (34) or other circuit protection device and at least one busbar (46, 48, 50) for transmitting electrical power to branch circuit breakers (36) connected thereto, a connector installation kit (78) for connecting a load terminal of a main circuit breaker (34) to a busbar (46, 48, 50) including a self-supporting, insulator housing (160) having at least one recess (166, 168, 170) defined therein; and at least one phase connector (172, 174, 176) having a first portion connected to a load terminal of a main circuit breaker (34) and a second portion connected to the busbar (46, 48, 50).

Abstract: An assembly for both distributing electricity and limiting the flow of current has a housing, input conductors, first output conductors, second output conductors, an insulating spacer block, and limiters. Portions of the input conductors and first output conductors overlay each other with the insulating spacer block therebetween. The limiters electrically connect the input conductors to the output conductors with pairs of limiters connected between a single input conductor and separate output conductors.

Abstract: An arrangement for connecting aligned sections of a bus bar includes connecting pieces of approximately rectangular basic shape. Crown-rounded contact surfaces are provided at the ends of the connecting pieces to rest on the narrow sides of the rectangular profile of the bus bars. Two contact surfaces flanked by elevations are provided on one of the sides of the connecting piece, while two pairs of contact surfaces are provided on the opposite side. To connect the sections of single bus bars, the connecting pieces are used in such a manner that the sections are flanked by the elevations, while to connect double bus bars the reversed position is provided, in which elevations between the pairs of contact surfaces are situated between the parallel sections of the bus bar set.

Abstract: A protective casing for preventing any accidental introduction of metal parts into a column containing an array of electric distribution busbars is made up of two identical insulating half-casings (3) coupled together by interengagement of external engagement regions (18A, 20A, 22A, 24A) and of internal engagement regions (18B, 20B, 22B, 24B) up to a mutual coupling position which is variable according to the dimension of the busbars. The busbars are inserted in housings (29, 30) and pass through recesses (9A, 11A, 11B, 9B, 13) in the lateral walls of the casing. Fixing bolts extending between the busbars are surrounded by insulating sleeves (21) formed by interpenetrating outer and inner tongues (23 and 25) separated by slits (36). The sleeves (21) are made integral with the half-casings by molding of plastic material.

Abstract: An isolated phase busbar installation has a closed circulatory cooling system in which a deionization device is interconnected between the tubular enclosures of two isolated phase busbars of the installation between which air is caused to flow. The deionization device comprises an open-ended metal tubular housing which is connected to earth and which has, extending transversely across the bore and dividing the bore throughout its length into a plurality of passages, a plurality of mutually spaced metal sheets. Each metal sheet has a plurality of transversely extending convolutions at spaced positions along the length of the housing so that each passage follows an undulating path.

Abstract: A bus bar assembly including an elongated insulative base member and a plurality of modular insulative unit pieces attached to the base member and having contact receiving openings, conductive bus bars in an enclosed region defined by the base member and unit pieces, contact pins of the bus bar extending upward into insulative tubular members extending downward from and centered within the openings, insulative fins supporting the bus bars above a bottom wall of the base member, an insulative divider wall between adjacent bus bars extending upward from the bottom wall, mounting holes in the upper and lower walls, and an insulative shield between the region between mounting holes and the bus bars.

Abstract: A power distributor device is disclosed for electric installations, comprising, for housing a set of power bars, an insulating case formed preferably of several interlockable modules. A member, for example an end-piece in the form of a lyre is associated with a zone for fixing the case on a support allowing expansion between the case and the support. An upstream connection box may be assembled to the case and comprise a zone for fixing to the support.

Abstract: An electric power distribution device for insulated conductors has a substantially rigid base, a housing, and at least one series of spaced apart support blocks for supporting such conductors at intermittent positions along their length. The support blocks are substantially enclosed within the combination of the housing and the base, extending substantially from the base to a position in close proximity to the housing top. The support blocks are formed of a substantially inflexible material.

Abstract: A busbar is provided for current distribution systems such as busbar trunking systems, switchgear and the like. The busbar has a C-shaped cross section and walls which are not uniform in thickness. The walls which lie closest to one another in adjacently mounted busbars have a thickness which is greater than the thickness of the walls which lie parallel to the mounting surface onto which the busbars are mounted.

Abstract: An adjustable dielectric bus support clamp with a liner has a duct sidewall for adjustably supporting dielectric clamps which support high current capacity electrical conductors. A resilient dielectric liner fits between the dielectric clamp and the electrical conductor to fill high potential voids and provoide corona damping, while at the same time allowing different sized liners to be used with different sized conductors.

Abstract: A holder with busbars for a busbar system to connect electrical equipment, the holder consisting of a rectangular and plate-shaped insulating support with receptacles for busbars located in its top and a channel-shaped receptacle into which the insulating support is inserted. A number of busbar sections are fixed in position in the receptacles and run parallel to one another at uniform intervals.

Abstract: A bus bar and duct combination as is disclosed comprising a plurality of bus bars encased and held, at a central part between end joint parts of the bus bars, within a metal duct such that the bus bars, the duct and electrical insulation members are in intimate contact to provide heat transfer from the bus bars to the duct by way of conduction.

Abstract: An insulating spacer for use in a gas-insulated electric apparatus for supporting a high-tension electric conductor inserted through a metallic pipe enclosing an insulating gas, in which the insulating spacer is provided with a plurality of fins on its creeping surface, and in which fin intervals between the metallic pipe and one of the fins adjacent to the metallic pipe, between adjacent ones of the fins, and between the high-tension electric conductor and one of the fins adjacent to the high-tension electric conductor are formed in a manner so that the fin interval formed at a position where a creeping component electric field is high is made narrower than the fin interval formed at a position where a creeping component electric field is lower than that in the first-mentioned position.

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: An improved plug-in assembly facilitating the tap-off of electrical current from bus bars carried in a busway section that includes opposite side rails and a plurality of plug-in openings formed in each of the side rails in back-to-back association or registration with each other. The plug-in assembly includes a substantially symmetrical insulating base and a door, each swingably connected to the side rail. Ears formed in the side rail adjacent the plug-in opening are aligned with ears formed on the door and a drive screw extends through holes in each pair of ears and into an opening in a support post provided on the side of each base. The screw is fittingly retained in the ear of the side rail while the door and base members fit loosely over the drive screw to permit those parts to swing between an open and a closed position. A metal cover latch is self-retained in one of a pair of symmetrically positioned latch retaining grooves on the front of the base which retains an integral catch portion on the door.

Abstract: An insulator for supporting the inner conductor of a gas insulated transmission line is configured so that its outer extremity is a simple blunt portion that fits loosely within a bearing block of insulating material of lower dielectric constant than the insulator itself so as to provide structural simplicity and improved performance through lessened breakdown susceptibility. A cylindrical particle trap ring formed of flexible metal sheet material is attached to the bearing block at locations spaced from the insulator.

Abstract: A system for HVDC transmission comprises a conductor, stressed by d.c. voltage, which is insulated from a surrounded grounded casing by pressurized SF.sub.6 gas and along part of its length by at least one solid insulator supporting the conductor in the casing and in contact with the gas. By designing the solid insulator as a core of solid insulating material and a coating, provided thereon, with a high surface resistance, it is possible considerably to reduce the dimensions of the casing. The coating consists of a resinous binder containing a powdered filler in the form of chromium oxide or iron oxide, or a mixture of these substances. The coating preferably has a surface resistance between 10.sup.12 and 10.sup.18 ohm/.quadrature. at an electric field strength of 1 kV/mm.

Abstract: The invention relates to a conductor supporting apparatus for gas insulated equipment in which a high voltage conductor which is arranged in a grounded tank is insulated and supported by an insulating spacer having attaching metal fittings at both end portios. In the apparatus of the invention, a cylindrical insulating barrier having a flange portion on the side of the free end so as to be substantially perpendicular to the surface of the insulating spacer is attached by use of the attaching metal fitting of the insulating spacer on at least the side of the grounded tank. The insulating spacer is surrounded by this insulating barrier through a space. By use of the insulating barrier, the approach of conductive foreign matters to the insulating spacer can be prevented and the high dielectric strength can be maintained.

Abstract: The present invention relates to an insulated high voltage transmission line and method for pre-assembling in the factory the sections of this line. The busbar is inserted into the cylindrical outer metal casing and held inside the casing by a removable support. On the job site, the removable support is withdrawn from the casing and the sections are connected in the usual manner. Support tools are used to avoid the bar overhanging during pre-assembling in the factory or assembling of the sections on the job site. During shipping the bar is inserted into the metal casing.

Abstract: A gas insulated transmission line includes a hollow outer conductor having an inner conductor and a support framework disposed therein. A tensioned insulating member is utilized to support the inner conductor within the outer conductor and the support framework. The insulating member is made of flexible insulating filaments which are tensioned to a predetermined amount which is greater than the tension caused by suspending the weight of the inner conductor alone.

Abstract: A gas insulated transmission line having a novel insulator for supporting an inner conductor concentrically within an outer sheath. The insulator has a recess contiguous with the periphery of one of the outer and inner conductors. The recess is disposed to a depth equal to an optimum gap for the dielectric insulating fluid used for the high voltage insulation or alternately disposed to a large depth so as to reduce the field at the critical conductor/insulator interface.

Abstract: A funnel-shaped support insulator is mounted by its insulator outer edge in a recess of a grounded housing and has an orifice which is provided at a distance from the housing and in which a high-voltage conductor part is retained. To prevent, in this insulator, inadmissible field increases and glow discharges associated with these in the region of the outer edge of the insulator, the insulator has a wall thickness decreasing from the orifice to the outer edge of the insulator. A plurality of lobes engaging the housing are located at the outer edge of the insulator. An insulator of this type is to be used preferably in metal-encased high-voltage switch gear.

Abstract: A gas-insulated transmission line includes a corrugated outer conductor, an inner conductor disposed within and insulated from the outer conductor by means of support insulators and an insulating gas, and a non-binding transport device for supporting and permitting movement of the inner conductor/insulating support assembly axially along the corrugated outer conductor without radial displacement and for moving without binding along corrugations of any slope less than vertical. The transport device includes two movable contacts, such as skids or rollers, supported on a common pivot lever, the pivot lever being rotatably disposed about a pivot lever axis, which pivot lever axis is in turn disposed on the periphery of a support insulator or particle trap if one is used.

Abstract: A gas-insulated transmission line includes a corrugated outer conductor, an inner conductor disposed within and insulated from the outer conductor by means of support insulators and an insulating gas, and a transport device for supporting and permitting movement of the inner conductor/insulating support assembly axially along the corrugated outer conductor without radial displacement. The transport device includes two movable contacts, such as skids or rollers, supported on a common pivot lever, the pivot lever being rotatably disposed about a pivot lever axis, which pivot lever axis is in turn disposed on the periphery of a support insulator or particle trap if one is used. The movable contacts are separated axially a distance equal to the axial distance between the peaks and valleys of the corrugations of the outer conductor and separated radially a distance equal to the radial distance between the peaks and valleys of the corrugations of the outer conductor.

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.