Abstract:
An electrical device includes a body, an electrical contact having a first end for electrically coupling to an electrical apparatus and a second end within the body, and a conductor electrically coupled to the second end of the electrical contact. The electrical device also includes an access region defining a cavity and a surge arrester that electrically couples to the conductor through the access region. The cavity provides access to an interior of the electrical device. The access region may include an insulating projection extending from an insulating body of the electrical device and a conductive cover surrounding the insulating projection. The insulating projection defines the cavity. The conductive cover is electrically isolated relative to a conductive shell that surrounds the insulating body.
Abstract:
A chip fuse includes a substrate, a fuse element extending on the substrate, and first and second wire leads coupled to the fuse element. Contact pads may extend over portions of the fuse element and establish electrical connection to the first and second leads. A conductive medium such as solder encircles the substrate to securely form a mechanical and electrical connection to the leads.
Abstract:
A position indicator may include a position indicator display and mechanism. A polymer housing houses the position indicator display and mechanism and a one-piece clear polymer cover encloses the position indicator display and mechanism in the polymer housing. The position indicator may further include a hinge and hand-operated latch that secures the one-piece clear polymer cover to the polymer housing such that the one-piece clear polymer cover can be opened without the use of tools.
Abstract:
A first electrical connector is configured to be removably coupled to a second electrical connector that includes a housing and a sleeve that depends from the housing. The first electrical connector includes a body having a longitudinal axis, an interface portion, and a circumferential groove formed in the interference portion. The groove is defined by a circumferential wall of the interference portion. A radial wall extends from the circumferential wall away from the longitudinal axis, and a circumferential extension extends axially from the radial wall. The radial wall and the circumferential extension are configured such that when the first electrical connector is coupled to the second electrical connector, the circumferential extension is snugly received in the sleeve of the second connector to form an air-tight chamber between the sleeve and the interference portion. As the first electrical connector is removed from the second electrical connector, an air flow path is defined around an end of the sleeve in a space between the circumferential extension and the sleeve to allow air to enter the chamber to inhibit flashover.
Abstract:
A latching mechanism for joining separable insulated connectors employs a plurality of finger contacts to create an interference fit with an electrode probe of an elbow connector. The electrode probe enters a cylindrical grouping of the plurality of finger contacts and a projection causes an interference fit between the finger contacts and the electrode probe. The finger contacts latch the connectors together and require a removal force greater than the latching force required to latch the connectors. The latching mechanism provides a multi-point current path between an elbow connector and a power transmission or distribution apparatus and provides operator feedback to indicate the latching of the mechanism.
Abstract:
A fuse state indicating system includes at least one fuse comprising a primary fuse element, and an indicating circuit proximate the fuse and disassociated from the primary fuse element. The indicating circuit is configured to detect an opening of the primary fuse element wherein a circuit path is broken through the primary fuse element. The circuit is further configured to transmit an optic signal to a remote location when the opening of the primary fuse element is detected, and the signal is transmitted without mechanical actuation of the circuit.