Abstract: An electric line cutter device for high voltage busbars has a two-part housing, a piston, an igniter and a busbar. The upper housing includes a cylinder, cuboid or prism chamber. The lower housing also includes a cylinder, cuboid or prism chamber. The piston is contained inside one of either the upper housing chamber or the lower housing chamber. Upon igniting the igniter, the piston breaks a portion of the busbar moving the piston and the portion of the busbar into the opposite chamber thereby stopping the electric current flow. The piston is at least partially formed as an insulator to prevent electric discharge. The piston design together with chamber design includes integrated “squeeze areas” and “blow channels” for the appearing arc. A channel system outside or from inside the piston allow the pyro gases to push the arc plasma into a filter system to cool down the gases.

Abstract: A pyrotechnic circuit breaker ,comprising a body, an igniter, a piston a bus bar, wherein the piston comprises a cutting edge and is adapted to move along a normal direction from a raised position to a lowered position to cut a portion of the bus bar, thereby separating the bus bar into two distinct portions in order to break the electrical conduction of the bus bar.

Abstract: A bus bar for electrical power distribution may be an elongated extruded metal bar having slots extending the entire length thereof. The slots may be of T-shape cross section, each with the channel opening through a face of the bar. Bolts are arranged with their heads captured in, and slidable along the length of the slots to any desired position. The bolts may have threaded stems which extend from the head through the channel of the T-slot in which its head is disposed and beyond that face of the bar through which the associated T-slot opens. Each stem is adapted to threadably receive a nut for clamping, supporting or connecting lugs to the bar. The bus bars can be mounted on insulating support members.

Abstract: The insulator, includes a lower bell shaped portion, an intermediate annular waist portion and an upper saddle portion for receiving and supporting an electric transmission overhead cable. An axial blind bore opens at its lower end for receiving an upstanding support pin. The saddle portion includes a transversely-curved groove, substantially normal to the axial bore, and jutting parts on each side of the cable receiving groove and laterally protruding from the waist portion. Each jutting part has an external face which is provide with a partly annular groove, generally coaxial with the bore and of greater radius than that of the waist portion. These annular grooves are adapted to positively retain the inturned flanges of a cable retaining clasp despite an upward force or a laterally upwardly directed force exerted by the cable on the clasp. The waist portion can still be used for attaching the electric wire by a tie-wire.

Abstract: An insulator arrangement for supporting a conductor with an enclosure has an insulator fixedly connected at one end with the conductor. The insulator has another end portion mounted to a first shock absorber. The first shock absorber is further mounted with an access cover to permit displacement of the conductor and the insulator relative to the access cover. The insulator arrangement has second shock absorbers mounting the access cover to the enclosure permitting relative displacement between the access cover, which supports the insulator and conductor, and the enclosure.

Abstract: A filament core wire capable of being mounted while having tension at a predetermined level applied thereto without an expensive anchor and without applying unnecessary tension thereto. The filament core wire is provided at a part thereof with spring and welded sections. The sections each are covered with a heat-decomposable block element made of acrylic resin or the like. Also, the core wire has a carbonate deposited thereon. The core wire is mounted on a mounting position by removing the block element from the welded section of the wire arranged on the fixing position by heating and then welding the welded section to a fixing spot of the fixing position. Then, block element is removed from the spring section by heating. This permits the filament core wire to be stretchedly arranged at the mounting position while keeping tension applied to the core wire to provide it with elasticity.

Abstract: A mast clamp assembly including a strap, a drop wire clamp, and a hook. The ribbon-like strap forms a loop which engages a utility pole or mast. The drop wire clamp includes a clamp for clamping to the drop wire and a loop which engages the hook. The hook includes a back wall and first and second side walls. The loop of the drop wire is received in loop mounting slots in the side walls and engages a protrusion on each side wall. Each side wall also has a strap mounting opening having a triangular-shaped lower portion and a rectangular-shaped upper portion. The hook is mounted on the strap by inserting the strap, bottom edge first, through a slot in the back wall into the lower portion of the strap mounting openings and rotating the hook around the strap such that the upper edge of the strap rotates into the upper portion of the strap mounting opening and the strap engages the hook back wall.

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: The electric fence insulator of linear polyethylene plastic includes a body having a rear portion for attaching the body to a fence post. Forwardly of the body is a clip unit having an upper latch mechanism. More specifically, the clip unit includes a first panel integrally attached to the body and a second panel resiliently connected at its lower end to the lower end of the first panel through the agency of a bight portion. The latch mechanism includes an upwardly directed keeper portion having an angled edge thereon and a hook portion having an angled edge thereon, the angled edges being vertically overlapped with respect to each other so that a latching engagement can be effected by manipulating a tab with one's fingers, the tab projecting upwardly from the hook portion. The latch mechanism also includes a rib formed in the hook portion which fits in a channel formed in the keeper portion for preventing slideable movement between the overlapping edges of the hook portion and the keeper portion.

Abstract: The electric fence insulator of linear polyethylene plastic includes a body having a rear portion thereon for attaching the body to a fence post. Forwardly of the body is a clip unit having an upper latch mechanism. More specifically, the clip unit includes a first panel integrally attached to the body and a second panel resiliently connected at its lower end to the lower end of the first panel through the agency of a bight portion. The latch mechanism includes an upwardly directed keeper portion having an angled edge thereon, the angled edges being vertically overlapped with respect to each other so that a latching engagement can be effected by manipulating a tab with one's fingers, the tab projecting upwardly from the hook portion. When latched, the electric fence insulator securely holds a braided tape-type conductor, yet permitting the release of the conductor when the tab is again manipulated to unlatch the mechanism.

Abstract: An insulator for an electric fence comprising a separate clip part and a base support for connecting a woven wire electric conductor to a variety of fence posts. The clip part snap fits over a fiberglass fence post with the electric conductor retained therebetween. To connect the electric conductor to either a metal or wood fence post the base is first secured to the post either by bands or by nails. The clip part is then snap fitted over the base with the electric conductor retained therebetween.

Abstract: The electric fence insulator is of linear polyethylene. The insulator includes a vertical panel having a first L-shaped clip thereon providing a downwardly directed prong. A pair of laterally spaced L-shaped clips provide a pair of upwardly directed prongs each having a rib extending therealong. The ribs render these last-mentioned prongs relatively rigid with respect to the downwardly extending prong. The downwardly extending prong has its lower end at an elevation beneath the elevation of the upper ends of the upwardly extending prongs to assure retention of an electric fence conductor by reason of the overlapping prongs.

Abstract: An adaptor for converting an electric fence post insulator from a wire electric conductor support to a tape conductor support. The adaptor connects to the wire holding fingers of the insulator.

Abstract: A cable supporting clamp (10) for the orderly routing of flat electrical cables (28, 29, 30) at the interconnection side of electrical equipment frames. A pair of jaws each formed of a pair of arms (18-19; 20-21) extending from one side of a backplate (15) define slots (22, 23) adapted to receive the cable or cables. The cables are trapped in the slots by a pair of nubs (24-25; 26-27) at each jaw extending inwardly into the slots at the ends of the jaw arms (18-19; 20-21). Bracket means (31, 35) are provided at the other side of the backplate (15) for slidably mounting the clamp (10) on a frame cross-member (11).

Abstract: A versatilely cnnectible bus bar assembly adapted to carry 200-800 amperes in a panelboard or switchboard environment. The assembly includes a plurality of aluminum bus bars having generally rectangular cross-section bases and integrally connected generally U-shaped cross-sectioned plug-on protions extending throughout the length of the bus bars along the top part of the base. The plug-on portion is provided with inwardly directed nubs designed to prevent improper jaw connection. The bottom of each base includes a T-shaped slot extending throughout the length of the bus bar. Each of the bus bars is supported by a plurality of insulating bases, each of which includes a separate channel in engagement with the base of each bus bar. Each bus bar is fastened to each base by a T-bolt and nut. The head of the bolts are received in the T-shaped slot of the bus bars and the nuts are received in recesses provided on the underside of the base.

Abstract: Switchboard apparatus includes means for supporting a bus bar including an elongated steel member having at least one bolt hole therethrough, the steel member being coated with an insulative material. A pair of formed washers of protective material are adapted to seat within the hole at opposite sides of the steel member. A member bolt fits within the washers and the hole, and a nut is adapted to engage with the bolt with a flat washer fitting between the bolt and one of the formed washers.

Abstract: Lower extremities of two structural, component-carrying columns are affixed to two channel members that are coupled to a base frame. The columns, members, and frame form a free standing assembly. Two other channel members, coupled to a top frame, are affixed to the columns' upper extremities. Corner posts couple the top and bottom frames.A bus bar is supported within frames and corner posts by an insulated elongated steel member having a through bolt hole. Two insulating washers seat within the hole at opposite sides thereof. A metal bolt fits within the washers and hole. A nut engages with the bolt. A flat washer fits between the bolt and one washer.A plurality of bus bars carry and distribute current at a particular voltage at a first phase. A similar plurality carry and distribute current at other phases. All bus bars are oriented parallel to one another spaced interjacently: first phase, second phase, third phase, first phase, second phase, etc.

Abstract: A support for an electrical busbar, made of plastic material, has a recess for holding a busbar. The lower surface of the recess is a resiliently flexible plate supported in the middle by a rib and provided with projections at opposite sides. Adjacent to the mouth of the recess is a resilient detent arm. When a busbar is inserted, it depresses the arm and at least one of the projections by flexing of the plate. The stress in the plate clamps the busbar in the recess, and the arm snaps into place behind the inserted busbar. One of the projections may serve as an end stop for the busbar, if the support is placed at the busbar end. This form of support is easy to manufacture and to use, and provides very reliable clamping and location of the busbar.

Abstract: A bus conductor support system includes a tubular bus conductor removably mounted on an insulator assembly in a hollow conductive tubular enclosure. The tubular enclosure is secured to a mounting platform. Access openings are provided in the tubular enclosure for servicing purposes. One end of the insulator assembly is removably secured to the hollow tubular enclosure in a manner which allows easy access thereto through an access opening in the tubular enclosure. The bus conductor is removably mounted on an opposing end of the insulator assembly in a manner which also allows easy access thereto through the same access opening in the tubular enclosure. In one embodiment, a single side access opening in the tubular enclosure is in proximate relation to securing means for the insulator assembly and mounting means for the bus conductor.

Abstract: This electric bus structure comprises a bus bar having a coating of insulating material, an insulator for supporting the bus bar, and a bracket of insulating material having a U-shaped cross-section mounted on the insulator and having a pair of spaced-apart arms between which the bus bar is positioned. The bus bar is clamped to the bracket by clamping means comprising a clamping member of insulating material extending between the arms. The bracket and the clamping member each have rib structure projecting toward the bus bar and providing the sole surfaces through which contact is made between said coating and the bracket and clamping member when the bus bar is clamped to the bracket.

Abstract: A control center characterized by vertical bus bars supported by dielectric insulators which are disposed in vertically spaced pairs along the bus bars and which are molded with a configuration to accommodate bus bars of various shapes and sizes.

Abstract: A cast bus bar clamp with perimetric ribs and a connecting web is provided. The design eliminates abrupt changes in cross-sectional area. This, in turn, provides a less abrupt temperature gradient on cooling which, in turn, minimizes nonuniform solidification which, if present, frequently causes the formation of weakening cracks. To improve the distribution of clamping pressure, the clamp is usually given a convex curvature so that when the clamp is tightened there are five pressure points. The design provides an improved strength-to-weight ratio and a more reliable and economical structure.

Abstract: A cylindrical porcelain insulator having a depressed opening in at least one end thereof is utilized as a support member. An elongated steel stud having a threaded end and an enlarged securing end is disposed in the depressed central opening of the porcelain insulator. The enlarged securing end has circumferential lateral ridges and depressions for providing an enlarged surface area. Babbit or epoxy material is disposed in the remaining volume of the depressed opening. The securing end of the stud is therefore suspended in the hardened babbit or epoxy material, which in turn is affixed to the sides of the depressed opening, thus affixing the stud to the insulator. The stud has a relatively flat circumferential lateral shoulder at the upper end thereof which protrudes above the end of the insulator and out of the depressed opening. An electrical bus bar or bus bar retaining apparatus is disposed around the threaded portion of the stud to rest on the flat shoulder in a flat surface to flat surface relationship.