Puncture type ground clamp and use method thereof

Abstract

The invention provides a puncture type ground clamp and a use method thereof. The puncture type ground clamp is exquisite in structure, simple and convenient to use and capable of effectively repairing a cable sheath when a puncture needle is pulled out. The puncture type ground clamp comprises a hook, a sleeve and the puncture needle, wherein the hook is connected to the top of the sleeve; the puncture needle is movably connected in the sleeve and is grounded; the sleeve comprises an upper sleeve, a lower sleeve, a movable top plate and a fixed bottom plate; the puncture needle comprises a needle body, a rod body and a limiting ring integrally connected from top down; the top surface of the movable top plate is coated with soft rubber. The puncture type ground clamp can be used for effectively repairing the cable sheath, has the characteristics of convenience, quickness and high efficiency for operation on the whole and also has the advantages of convenience for transfer and carrying, very high safety and good reliability.

Description

technical field [0001] The invention relates to the field of improvement and installation of grounding wire clamps, in particular to the improvement of puncture-type grounding wire clamps. Background technique [0002] With the requirement to improve the reliability of power line operation, the insulation rate of distribution network lines is getting higher and higher, and the number of insulated wires used in distribution network lines is increasing. Although the newly erected insulated wires are required to be fixed However, due to many reasons such as line design or material delivery delays, the actual construction process failed to install fixed grounding wire clamps according to the erection standards of insulated lines. Temporarily install a ground clamp to achieve grounding. [0003] To this end, multiple solutions have been proposed in the prior art. Representatively, on August 1, 2007, the national bureau disclosed a document called "A Kind of Insulation Piercing G...

AI Technical Summary

Problems solved by technology

[0004] However, when people apply this type of device to field operations, they find that: on the one hand, if the puncturing needle punctures the cable sheath at the same point every time when used repeatedly, it is very easy to continuously expand the hole on the cable sheath; , the bottom of this type of device is usually grounded through a very long wire. In case of strong wind, the reciprocating swing of the wire will drive the needle to shake back and forth, which will also enlarge the hole on the cable sheath

In this way, once the hole is so large that the cable sheath cannot rely on its own elastic deformation to "self-repair", it will lead to hidden dangers such as electric leakage, water seepage, and cable corrosion.

[0005] In addition, since the cables are usually erected outdoors, the cable sheath will usually become hard and brittle in a low temperature (below 5°C) environment; damage

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