Wire clamp for installing grounding wire at copper-aluminum transition wire clamp of transformer and knife switch lead

Abstract

The invention discloses a wire clamp for installing a grounding wire at a copper-aluminum transition wire clamp of a transformer and a knife switch lead. The wire clamp comprises a wire clamp main body and wire clamp double tongues, wherein the wire clamp main body is of an inverted U-shaped structure; a middle stopper is arranged at the top of the wire clamp main body, strip-shaped through holesare formed in two sides of the middle stopper, the wire clamp double tongues are two arc-shaped structures, one ends of each of the wire clamp double tongues is hinged with the wire clamp main body, another end of each of the wire clamp double tongues penetrate through the wire clamp main body through a strip-shaped through hole, and reset torsion springs are arranged between the wire clamp doubletongues and the wire clamp main body; when the grounding wire is installed on a transformer lead copper-aluminum transition wire clamp lead, since the wire clamp double tongues are propped open by asemicircular positioning stop fixture, and the caliber of the double openings of the double tongues is greater than the diameter of the wire, the grounding wire can be easily assembled as long as thewire slightly touches the semicircular positioning stop fixture and the positioning stop condition is damaged, and no external force damage is caused to the copper-aluminum transition wire clamp of the transformer.

Description

Technical field: [0001] The invention relates to the field of power transmission and transformation maintenance, in particular to a clamp for installing a grounding wire at the copper-aluminum transition clamp of a transformer and a knife switch lead. Background technique: [0002] At present, double-tongue spring monkey head U-shaped clamps are generally used to install grounding wires at the lead wires of copper-aluminum transition clamps such as transformer high and low bushings. When in use, use the U-shaped wire clip and the double-tongue circlip to hang the wire clip and the grounding wire on the installation position of the above-mentioned grounding wire. However, because the torque of the torsion spring located under the double tongue is somewhat large (the torque force is to make the wire clip clamp the wire), when installing the ground wire, the operator needs to pull the wire clip with a large enough pulling force to overcome the torque of the torsion spring Make...

AI Technical Summary

Problems solved by technology

Because the strength is not easy to grasp, when the strength is too large, under the action of inertial force, sometimes the copper-aluminum transition clamp on the wire will be pulled or broken, which will affect the operation safety of the line and cannot restore the power supply in time

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