A filling device for the joint that provides filling of the desired area to be poured in cases where similar electrical transmission systems or components such as low and high voltage busbars and cables are attached to each other.

A busway system including a first electrical busway section, a second electrical busway section, the first and the second electrical busway sections being offset from each other, a busway joint for coupling the first and the second electrical busway sections. The busway joint including a plurality of busbars, a plurality of splice plates electrically coupled to the plurality of busbars, the plurality of splice plates and the plurality of busbars configured to electrically couple the first and the second electrical busway sections, and a pivot shaft passing through the plurality of busbars and splice plates.

A bus bar assembly includes a bus bar formed of a first electrically conductive material having a planar contact portion. The bus bar defines a first bore extending through the contact portion. The bus bar assembly further includes a contact insert formed of a second electrically conductive material that has a greater hardness than the first electrically conductive material. The contact insert defines a first surface that is mechanically and electrically connected to the contact portion of the bus bar. The contact insert defines a second surface this is plated with a third electrically conductive material which is different than the second electrically conductive material. The contact insert defines a smooth second bore coaxial with the first bore and extending from the first surface to the second surface.

A bus assembly includes a planar first bus, a second bus including a first planar bus section on the first bus and a second planar bus section connected to the first planar bus section and offset from the first planar bus section, and a third bus comprising a third planar bus section disposed between the first bus and the second planar bus section, and a fourth planar bus section connected to the third planar bus section, offset from third planar bus section, and disposed on the first planar bus section.

Apparatus and method for a modular switchboard provide an adjustable length bus bridge for electrically connecting two adjacent switchboards, where the length of the bus bridge can be adjusted on site if needed. The bus bridge comprises a first set of busbars, each being electrically insulated from one another, and a second set of busbars, each being electrically insulated from one another. The first and second sets of busbars are arranged such that the busbars in the first set of busbars and the busbars in the second set of busbars are slidable relative to one another to adjust a length of the bus bridge. A longitudinal slot is formed in each busbar in either the first or the second set of busbars, or both, to accommodate a through bolt in the bus bridge when the first and second set of busbars slide relative to one another.

Embodiments provided herein are directed to an improved way to access and increase the area of an electrical distribution device provided for cable pulling and cabling. A rotatable section, on which several electrical components of the electrical distribution device are attached, can be rotated away from the cabling area as a single unit. This permits easier access to the cabling area and increases the size of the cabling area, which results in less time required to pull cables and wire the electrical components of the electrical distribution device.

A method for manufacturing a pipe type busbar includes: preparing a first tubular member made of a first material having a hollow formed therein; preparing a second tubular member having a hollow formed therein and made of a second material different from the first material; plating the first tubular member with a third material; and bonding one surface of the first tubular member and one surface of the second tubular member. The pipe type busbar manufactured thereby has the features capable of reducing a weight and a cost by a heterogeneous material, a pipe shape, and exposing a part of a copper material.

An electrical interconnect arrangement for coupling a contactor with a bus bar includes a post, a bus bar connected electrically to the post, and a joint coupling the bus bar to the post. The joint has two or more interfaces defined between the post and the bus bar to reduce resistive heat generation within the electrical interconnect arrangement.

A busbar system includes a plurality of bar modules arranged one behind the other and connected to each other via clamping brackets. Each bar module has a plurality of busbars. The bar module end including the recesses running in a longitudinal extension is inserted into the clamping bracket and the bar module end with the recesses running transversely to the longitudinal extension is suspended on the opposite side in the clamping bracket. Each of the busbars of the one bar module rests laterally against a busbar of the other bar module and the recesses, as viewed from the side, form a through-opening, through which a tensioning element supported on the clamping bracket runs, which presses together the sides of the busbars which rest against each other.

An insulating apparatus for a metallic busbar is disposed on an interconnection part of a first strip and a second strip of the metallic busbar. The insulating apparatus includes a first insulated member, a second insulated member and a securing member. The first insulated member is formed with at least one slot. The second insulated member overlaps the first insulated member. The securing member passes through the second insulated member and the slot of the first insulated member to be slidably disposed in the slot, so that the first insulated member and the second insulated member are movable in a telescopic manner. The first insulated member and the second insulated member can cover the interconnection part of the first and second strips. The insulating problem of the interconnection part of a metallic busbar is solved, shortening the manufacturing period and manufacturing conveniently with lower cost.