Connecting tube used for large-section conducting wire

A splicing tube and large cross-section technology, which is applied in the direction of connection where permanent deformation plays a role, connecting contact material, multi-core cable end parts, etc., can solve the problem that the splicing tube can no longer meet the requirements, and achieve crimping quality easily, The effect of the mature crimping process

Active Publication Date: 2010-06-30
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the emergence of four-layer aluminum wires in China, the traditional splicing tubes can no longer meet the requirements of relevant national standards

Method used

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  • Connecting tube used for large-section conducting wire
  • Connecting tube used for large-section conducting wire
  • Connecting tube used for large-section conducting wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the four-layer aluminum wire steel-cored aluminum stranded wire is a kind of large-section wire. This large-section wire 1 includes a steel core 2. The steel core 2 is covered with an inner layer of aluminum wire 3 from the inside to the outside. Layer aluminum wire 4, adjacent outer layer aluminum wire 5 and outer layer aluminum wire 6.

[0031] Such as image 3 As shown, the connecting pipe for large cross-section conductors described in this example is used to join two large cross-section conductors 1 to transmit mechanical and electrical loads. The connecting pipe includes an aluminum pipe 7, a steel pipe 8, and two aluminum lined pipes 9. , The steel cores 2 of the two large cross-section conductors 1 extend into the steel tube 8 from both ends of the steel tube 8. The steel tube 8 presses the two steel cores 2 placed in the overlapped shape, and the two aluminum lined tubes 9 are respectively sleeved on the adjacent inner aluminum wires 4 o...

Embodiment 2

[0040] The structure and connection method of the connecting pipe described in this example are basically the same as those in Example 1, except that:

[0041] The connecting tube includes an aluminum tube 7, a steel tube 8 and an aluminum liner tube 9. The aluminum liner tube 9 is simultaneously sleeved on the adjacent outer aluminum wires 4 of the two wires and the steel tube 8 used for crimping the steel core of the two wires. Above, the length of the aluminum liner 9 is the sum of 3-4 times the outer diameter of the wire and the length of the steel pipe 8.

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Abstract

The invention provides a hydraulic connecting tube, comprising a connecting tube aluminum tube, a connecting tube steel tube and an aluminum liner tube, wherein, the connecting tube aluminum tube 7 is an extrusion aluminum tube, and the end is provided with a bevel; the end of the connecting tube steel tube is provided with an inverted circular angle; the connecting tube steel tube is used for inserting steel cores of two large-section conducting wires into the tube, leads the two steel cores to be lapped with each other, and compresses the two steel cores, the aluminum liner tube replaces a certain length of an adjacent-outer-layer of aluminum wire and an outer layer of aluminum wire of the two large-section conducting wires, and the connecting tube aluminium tube is compressed on the outer layer of aluminum wire and the aluminum liner tube. The connecting tube provided by the invention removes a certain length of the adjacent-outer-layer of aluminum wire and the outer layer of aluminum wire, and uses the aluminum tube with the same internal diameter and the external diameter to replace and fill the wire; when the aluminum tube is connected, the connecting tube aluminum tube is compressed to the filling aluminum tube and the outer layer of aluminum wire, the compression is ensured safe and reliable, meanwhile, the efficiency and stability of the conducting wire holding for the connecting tube are ensured.

Description

Technical field [0001] The invention relates to a connecting tube for a large cross-section wire, belonging to the field of connection fittings for connecting two terminals of an overhead power transmission line. Background technique [0002] The wire connection tube is used for the two terminals of the overhead power transmission line. In addition to bearing the full tension of the wire, it also acts as a conductor to conduct current. It is an important fitting in the transmission line. The wire is one of the most important components of the transmission line. Due to the resistance of the wire, a certain amount of loss will occur during the transmission of electric energy. This part of the power loss is often ignored. In fact, the cost of this part of the loss is considerable. Therefore, appropriate It is very necessary to increase the conductor cross-section to effectively reduce the line loss of the transmission line, which is also the key to energy saving and consumption redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/20H01R4/60H01R11/11
Inventor 万建成刘臻牛海军李军辉
Owner CHINA ELECTRIC POWER RES INST
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