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W type connecting method of high-voltage conductive wire

A connection method and technology for high-voltage wires, applied in the direction of connection and connection by deformation and connection by permanent deformation, which can solve problems such as creep, wire falling off, and increase in contact resistance.

Inactive Publication Date: 2009-01-07
吴岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. The contact resistance increases. If the temperature is too high, the contact connection surface will be strongly oxidized and creep will occur, which will increase the contact resistance, and the temperature will increase with this vicious cycle, which may lead to loose contact or melting
In severe cases, wire vibration may cause shedding, disconnection, and accidents.
When the vibration force is upward, it is the objective cause of wire clamp bolt drawing, nut falling off and disconnection

Method used

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  • W type connecting method of high-voltage conductive wire
  • W type connecting method of high-voltage conductive wire
  • W type connecting method of high-voltage conductive wire

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Embodiment Construction

[0029] The specific structure of the present invention is realized through the following embodiments and accompanying drawings.

[0030] See Fig. 1, the steel core 2 aluminum strand 3 is from the unpressed steel core 2 steel pipe 1 hydraulic position and the operation sequence starts from the center, and then applies pressure to the ends of the steel pipe 1 in sequence, and finally connects the aluminum pipe 4 with the already The steel pipes 1 pressed into a W shape are overlapped and centered evenly, and then begin to exert hexagonal confining pressure on the aluminum pipe 4. The operating points of the confining pressure on the aluminum pipe 4 are all the same as those of the connecting pipe in the prior art, forming a connecting pipe A new type of crimping that learns from each other and complements each other. Due to the special shape of the two-in-one technology of 1W type crimping of steel pipe and 4-in-one crimping of aluminum tube, the splicing pipe of the new two-in-...

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Abstract

The invention discloses a W-typed connection method of a high-voltage conductor, which relates to the field of electrician tools. The method of the invention is realized by adopting the scheme for improving a steel die of the existing manual hydraulic press pliers, and creatively applies a mechanical theoretical basis which brings forward a fundamental law of motion between the acting force and the counteracting force of the connection of a high-voltage conductor. The W-typed connection method includes that the conductor is connected with an aluminum tube at the ambient pressure and then connected with a steel tube in W shape under the action of the fundamental law of motion, thus forming two-in-one connection. By adopting the method of the invention, mechanical strength of the connection is stronger than that of the existing conductor connection standard, and the conductor is not damaged, a connecting tube in action is not easy to be expanded, and the tube is durable and vibration-proof, which reduces fall-off, looseness and burning-out fault.

Description

technical field [0001] The invention relates to an electrical tool, in particular to a W-type connection method for high-voltage wires Background technique [0002] During the operation of wire joints, overheating faults are one of the most common faults. Poor contact often occurs due to reasons such as oxidation and corrosion, making the resistance at the joints far greater than that of the same length wire. In this way, when the current passes, the temperature of the wire at the joint will increase due to the thermal effect of the current, causing the joint to overheat. The following adverse effects will occur. [0003] 1. Decrease in mechanical strength When the temperature of metal materials rises, the material will be annealed and softened, and the mechanical strength will decrease. When the aluminum wire is heated for a long time, when the temperature exceeds 100 degrees, its tensile strength will drop sharply. [0004] 2. The contact resistance increases. If the te...

Claims

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Application Information

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IPC IPC(8): H01R43/04H01R4/18
Inventor 吴岩
Owner 吴岩
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