Abstract: A first surface of a basepan of molded plastic for an electric load center includes a plurality of integrally formed fasteners for securing electrical components such as bus bars, neutral bars, and neutral tie bars to the basepan. Each fastener is formed in the absence of any core through the basepan from a second surface obverse to the first. Each integrally formed fastener has a support portion which projects away from the basepan first surface and a flexural portion supported by the support portion. The flexural portion has a first outwardly facing surface inclined with respect to the basepan first surface at an angle that facilitates elastic deformation of the flexural portion, but not the support portion upon application of a bar to the basepan. The flexural portion also has a second inwardly facing surface arranged at an angle with respect to the basepan first surface that facilitates fixed retention of the bar despite any reasonable variation in the thickness of the bar.

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 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: A bus bar insulation apparatus for a power distributor which is capable of effectively insulating the diverged circuit breakers of the power distributor and the bus bars without separating the diverged circuit breakers by a predetermined distance more than the width of the main circuit breaker. The apparatus includes a main bus bar insulation member installed on the substrate and having a plurality of spaced-apart first insulation walls for electrically insulating the main bus bars by the phase of the AC voltage, and at least one bus bar insulation fixed on the substrate and having a plurality of spaced-apart second insulation walls for electrically insulating the bus bars and for being coupled onto the main bus bar insulation member.

Abstract: A low inductance bus bar arrangement includes two electrical conductors and an insulating system. The insulation system includes an insulation material and is disposed between the conductors. The insulation material has a thickness equal to or greater than a thickness threshold such that partial discharge in the insulating material is minimized.

Abstract: An electric load center having a basepan having a surface with two spaced apart integrally formed wall members extending upward from the surface forming a barrier between the bus bars of the load center.

Abstract: The post insulator (6) has an insulator body (8), of cured cast resin, which can be subjected to a pressure medium, and at least one potted fitting (11) penetrating the insulator body (8) and subjected to high voltage. The metallic support body (12) has a lateral surface (15). The intention is to obtain a post insulator which is of simple structure and which is designed for comparatively high mechanical loading. This is achieved by providing the lateral surface (15) of the support body (12) with a bonding layer (13) which adheres better to the lateral surface (15) than the cured cast resin. The cured cast resin is cross-linked with the bonding layer (13).

Abstract: An electrical loadcenter bus bar mounting assembly which has a plurality of juxtaposed synthetic plastics moulded members. Each member is formed to interlock with each next adjacent member and has a plurality of location lugs for engagement with apertures in a support member.

Abstract: A panelboard bus bar arrangement. The arrangement includes an insulating base pan which is supported upon a steel base pan. The arrangement also includes three bus bars positioned within the insulating base ban and arranged side-by-side in a parallel manner. The distance between the bus bars is maintained relatively small by using an insulating member which shields and insulates the bus bars from each other. The insulating member includes openings which expose only portions of the bus bars, and dividers which separate adjacent openings and increase the cross surface distance between the openings. By increasing the cross surface distance between openings, arcing is inhibited between the openings.

Abstract: In a busbar arrangement for a switchgear assembly where the load buses pass through apertures in riser supply buses the load buses are supported by the supply buses by insulating grommet blocks occupying the space between the load buses and the inner edges of the apertures. The grommet blocks are held in place by sleeves on the load buses.

Abstract: A rail insulator (5) for the securing of a conductor rail (2) on a rail support (4) which comprises a substantially U-shaped supporting rail in which holes are provided at regular intervals, preferably in two parallel rows, and where the rail insulator (5) is formed with a notch (18) corresponding to the thickness of the rail being used, is arranged so that on the side turning away from the notch it has outwardly-extending, hook-formed holding elements (24, 25) arranged to grip around and be secured to the rail support (4), in that between the holding elements there is provided a guide stud (30) which fits down into one of the holes in one of the rows of holes. One thus obtains a rail insulator which is well-suited for use in the building up of rail areas, in that the rail insulator can quickly and easily be removed and mounted on the rail support without detracting from the strength and the ability of the rail area to absorb mechanical forces from changes in current.

Abstract: An insulating support device for supporting at least one conductor having a hole therein, including at least two hollow tubular insulating support members each including a partition having a circular hole concentric with the tubular support member, wherein the support members are disposed on either side of the conductor with the partition holes thereof coaxial with the conductor hole. An elongated insulating tube passes through the partition holes of the support members and the conductor hole and a support rod is passed through the insulating tube such that the pair of support members are in a free relationship with the support rod. Each hollow tubular insulating support member includes opposed half sections, each having a semi-annular shaped cross section including a semi-annular shaped partition located therein, wherein the opposed half sections are joined at their respective longitudinal edge surfaces to form an essentially hollow cylinder.

Abstract: An insulating support means mounts a bus conductor on a grounded metal wall through which the bus conductor extends. The bus conductor has a thin coating of insulating material bonded to its exterior. The support means comprises a porcelain sleeve mounted on the metal wall and surrounding the bus conductor, with the inner periphery of the sleeve disposed in spaced relationship to the insulating coating. Positioned between the inner periphery of the porcelain sleeve and the insulating coating is a disc of resilient insulating material closely surrounding the bus conductor. This disc has an axial length much shorter than the porcelain sleeve and is thus spaced axially from both ends of the porcelain sleeve.

Abstract: A control center characterized by horizontal bus bars having electrically insulating covers thereon which covers are in surface-to-surface contact with the surfaces of the bus bars except for removable surface portions for providing electrical connection with vertical bus bars, the removable surface portions being disposed in a pattern to enable alignment of said removable portions with the vertical bus bars when the barriers are assembled with the horizontal bus bars in either upright or inverted positions.