Provided are a test clip and a testing assembly and relates to the technical field of voltage testing. The test clip includes a clip body and a base. The clip body is configured to clamp a piece under test. The base is connected to the clip body, and the base is configured to be detachably connected to a crimp probe head to achieve an electrical connection between the crimp probe head and the clip body. The test clip is divided into the clip body and the base connected to each other. The clip body is configured to clamp the piece under test, and the base is configured to be detachably connected to the crimp probe head to achieve the electrical connection between the crimp probe head and the clip body, so that the piece under test can be clamped by the clip body for testing.

Electrical contact clips for use in utility locating operations to couple signals from a transmitter to a hidden or buried utility via direct electrical contact are disclosed. In one embodiment, a clip includes a base assembly and a jaw assembly having a plurality of jaws coupled to the base assembly, wherein each jaw is independently movably openable and closeable to secure to a target utility, a handle element on the base assembly having a utility selector element for selecting a utility type, and a contact element on the jaw assembly to directly conductively couple electrical signals onto a utility.

Electrical contact clips for use in utility locating operations to couple signals from a transmitter to a hidden or buried utility via direct electrical contact are disclosed. In one embodiment, a clip includes a base assembly and a jaw assembly having a plurality of jaws coupled to the base assembly, wherein each jaw is independently movably openable and closeable to secure to a target utility, a handle element on the base assembly having a utility selector element for selecting a utility type, and a contact element on the jaw assembly to directly conductively couple electrical signals onto a utility.

Methods and apparatus for electrical measurement are disclosed. An example electrical measurement device includes a conductive cable comprising a plurality of conductive filaments on a first end and an electrical connector on a second end, a cable mount that includes a base and an adjustable support attached to the base and the conductive cable to hold the plurality of conductive filaments in contact with a rotating element of a device under test during a measurement operation, with the conductive cable forming a portion of a circuit when the plurality of conductive filaments are in contact with the rotating element of the device under test and the electrical connector is in contact with an output.

A protective housing for an alligator clip and the ends of electrical cables used for high amperage applications, which includes a relatively rigid, non-electrically conductive hollow housing defining an interior chamber configured and dimensioned to accommodate and fully enclose an alligator clip therewithin and having openings at opposite ends thereof which open onto the interior chamber therein to allow and accommodate one or more electrical cables to be inserted into and through the openings of the opposite ends of the housing to permit coupling thereof within the housing chamber with the alligator clip. The hollow housing is openable to allow for insertion and removal of an alligator clip and has an opening therethrough communicating with the internal chamber thereof. A non-electrically conductive button movably is mounted in the opening in the housing for reciprocal movement generally into and out of the chamber for opening and closing the alligator clip.

A protective housing for an alligator clip and the ends of electrical cables used for high amperage applications, which includes a relatively rigid, non-electrically conductive hollow housing defining an interior chamber configured and dimensioned to accommodate and fully enclose an alligator clip therewithin and having openings at opposite ends thereof which open onto the interior chamber therein to allow and accommodate one or more electrical cables to be inserted into and through the openings of the opposite ends of the housing to permit coupling thereof within the housing chamber with the alligator clip. The hollow housing is openable to allow for insertion and removal of an alligator clip and has an opening therethrough communicating with the internal chamber thereof. A non-electrically conductive button movably is mounted in the opening in the housing for reciprocal movement generally into and out of the chamber for opening and closing the alligator clip.

There is disclosed a coupling device for operations on live elements to attain equipotential conditions. The device comprises two conductive jaws connected to a preferably nonconductive handle. The jaws are adapted to be switched between a closed configuration, in which they are in mutual contact and surround an area adapted to receive a live element, and an open configuration in which the contact portions of the two jaws are spaced apart from each other. The two jaws have respective entry tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the entry tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member. The two jaws have respective exit tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the exit tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member.

There is disclosed a coupling device for operations on live elements to attain equipotential conditions. The device comprises two conductive jaws connected to a preferably nonconductive handle. The jaws are adapted to be switched between a closed configuration, in which they are in mutual contact and surround an area adapted to receive a live element, and an open configuration in which the contact portions of the two jaws are spaced apart from each other. The two jaws have respective entry tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the entry tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member. The two jaws have respective exit tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the exit tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member.

An electrical connector can be provided for connecting a power source to an insertable conductor, including an igniter for exothermic weld material. One or more conductors can be disposed within a housing that is configured to receive the insertable conductor. An actuator can be engaged from outside the housing to move at least one of the conductors within the housing between resting and actuated orientations.

Various implementations of grounding clamps and torque-controlled fasteners are disclosed. The grounding clamps may be used to attach grounding conductors to various structures, such as pipes, conduit, grounding rods etc. The torque-controlled fasteners may use various techniques to control the amount of torque applied to the fasteners used with the grounding clamps described herein.