A structure of electrical connection is a structure of mutual electrical connection between a first power supply unit, a second power supply unit, and electric wires. The first power supply unit is provided with a first columnar terminal, and the second power supply unit is provided with a second columnar terminal. A tubular terminal is connected to an end of the electric wire. A first tubular terminal fitted to the first columnar terminal, a second tubular terminal fitted to the second columnar terminal, and a columnar terminal fitted to the tubular terminal are joined to a conductive connection plate. The entirety of the connection plate and the ends of the electric wires are covered with a cover.

A structure of electrical connection is a structure of mutual electrical connection between a first power supply unit, a second power supply unit, and electric wires. The first power supply unit is provided with a first columnar terminal, and the second power supply unit is provided with a second columnar terminal. A tubular terminal is connected to an end of the electric wire. A first tubular terminal fitted to the first columnar terminal, a second tubular terminal fitted to the second columnar terminal, and a columnar terminal fitted to the tubular terminal are joined to a conductive connection plate. The entirety of the connection plate and the ends of the electric wires are covered with a cover.

A fastening system has a conditioner clamp and a penetrating fastener. The conditioner clamp has an upper assembly and a lower assembly attachable together to define a conductor cavity therebetween. At least one threaded opening provides ingress into the conductor cavity. The penetrating fastener is extendable through the at least one threaded opening. The penetrating fastener has a threaded bolt and a penetrating portion with a proximal end at a second end region of the threaded bolt and a distal end spaced therefrom. The penetrating portion has a frustoconical configuration terminating at a tip portion. The tip portion is configured to penetrate into a conductor positioned within the conductor cavity.

A system is described for providing an electrical ground connection for a circuit assembly. The system may include a housing for the circuit assembly, the housing having an electrically conductive fixation member configured for attachment to an electrically conductive element outside the housing. The system may also include an electrically conductive feature having a first end and a second end, the first end configured to cooperate with the electrically conductive fixation member inside the housing and the second end configured for attachment to the circuit assembly. Attachment of the electrically conductive fixation member to the electrically conductive element outside the housing enables an electrical ground connection for the circuit assembly via the electrically conductive feature.

A system is described for providing an electrical ground connection for a circuit assembly. The system may include a housing for the circuit assembly, the housing having an electrically conductive fixation member configured for attachment to an electrically conductive element outside the housing. The system may also include an electrically conductive feature having a first end and a second end, the first end configured to cooperate with the electrically conductive fixation member inside the housing and the second end configured for attachment to the circuit assembly. Attachment of the electrically conductive fixation member to the electrically conductive element outside the housing enables an electrical ground connection for the circuit assembly via the electrically conductive feature.

A housing cap for closing an opening of a housing part includes a cover section covering the opening, a stop projecting away from the cover section, and a fastening element affixing the housing cap to the opening.

A housing cap for closing an opening of a housing part includes a cover section covering the opening, a stop projecting away from the cover section, and a fastening element affixing the housing cap to the opening.

An electrical connector includes a connector shell, a coupling nut, and an indicator surrounding the connector shell. The indicator includes a clamp member and a check member. The clamp member includes a ring and a coupling structure extending from the ring to the check member and coupling the ring to the check member. The indicator may assist a user in determining if the electrical connector is in a fully-mated state.

A meter box ground clamp may include a body portion having a first portion, a second portion, and a gripping portion that is configured to extend from the second portion and a fastener member configured to couple the body portion to an electrical meter box. The fastening member may be configured to extend through a receiving portion of the first portion to engage a first surface of the meter box so as to move the first portion away from the first surface of the meter box and move the gripping portion into engagement with a second surface of the meter box that faces away from the first surface of the meter box, and the receiving portion may be configured to receive the fastener member at a first angle less than 90 degrees relative to a plane of the first portion such that a free end of the fastener member forms a second angle greater than zero degrees relative to the second surface of the meter box. The second angle may be configured to create a force that urges the second portion of the body portion toward the meter box in response to a tightening torque applied to the fastener member so as to prevent the body portion from moving off the meter box in response to the tightening torque.

An electrical connection system includes a mounting stud having a base configured for mounting to a conductive surface. One or more one ring-shaped lugs, formed of an electrically conductive material, are configured for being positioned on the mounting stud for surrounding the mounting stud. The ring-shaped lug includes one or a plurality of interior channels extending around the inside diameter thereof. A contact spring is seated within a respective interior channel and is electrically conductive and dimensioned to extend radially inwardly from the channel and contact the mounting stud when the ring-shaped lug is positioned thereon. The contact spring is configured to at least partially collapse in the radial direction and to provide a spring bias against the mounting stud for providing an electrical connection between the ring-shaped lug and mounting stud. A locking cap is positioned on the mounting stud over the at least one ring-shaped lug for locking with the mounting stud and securing the ring-shaped lugs on the mounting stud for a secure electrical connection.