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Stranded composite core strain fitting for smart power grid and connection method for stranded composite core strain fitting

A technology of smart grid and tension-resistant fittings, applied in the direction of adjusting/maintaining mechanical tension, etc., can solve the problems of breaking, pulling and slipping composite cores, unable to ensure uniform force on composite cores, etc., to avoid loose grip, improve bonding force, The effect of great application value and development prospects

Inactive Publication Date: 2016-07-06
FAR EAST CABLE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, due to the gap between each composite core of the stranded composite core, when the conventional wedge-shaped composite core tensile fittings are used, it is impossible to ensure that each composite core is evenly stressed, and it is easy to cause slippage or one of the composite cores during the stretching process. Therefore, the existing tension fittings for single composite core conductors are not suitable for stranded composite core conductors

Method used

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  • Stranded composite core strain fitting for smart power grid and connection method for stranded composite core strain fitting

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Embodiment 1

[0019] See figure 1 , the stranded composite core tensile fittings for smart grids in this embodiment include composite core lined soft aluminum tube 1, tensile steel tube 2, tensile steel anchor 3, conductor lined aluminum tube 4 and T-shaped tensile aluminum tube Tube 5; composite core-lined soft aluminum tube 1 is fully annealed soft aluminum tube with a strength of 50-80MPa and a thickness of 1.0-5.0mm. The end of the tension-resistant steel pipe 2 is provided with an internal thread, and one end of the tension-resistant steel anchor 3 is provided with a thread meshed with the tension-resistant steel pipe 2; The outer diameter is 0.1-2.0mm larger. The other end of the tension steel anchor 3 is provided with a pull ring, and a rubber gasket is provided at the pull ring. The T-shaped tensile aluminum tube 5 is a hollow tube made of heat-resistant aluminum alloy; the strength of the T-shaped tensile aluminum tube 5 is not less than 85MPa, and the elongation is not less than...

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Abstract

The invention discloses a stranded composite core strain fitting for a smart power grid and a connection method for the stranded composite core strain fitting. The strain fitting comprises a composite core lining flexible aluminum tube, a strain steel tube, a strain steel anchor, a conductor lining aluminum tube and a T-shaped strain aluminum tube, wherein the composite core lining flexible aluminum tube is a fully-annealed flexible aluminum tube; the strength of the flexible aluminum tube is 50-80MPa; and the thickness is 1.0-5.0mm. The fully-annealed flexible aluminum tube is adopted as the composite core lining aluminum tube, so that, on one hand, flexible aluminum is in direct contact with a composite core in the crimping process, direct contact of the composite core and the steel tube is avoided and the carbon fiber-reinforced composite core is not damaged; and on the other hand, the flexible aluminum infiltrates the inside of a composite core stranding layer in a crimping manner and the grip force of the composite core and the fitting is improved.

Description

technical field [0001] The invention relates to a strain-resistant fitting for a stranded composite core wire used in a smart grid and a connection method thereof. Background technique [0002] As a new type of wire, carbon fiber composite core wire has the characteristics of light weight, high strength, and small linear expansion coefficient. It is widely used in various transmission line projects. The reinforcing core of the currently used composite core wire is a single composite core. Due to the poor toughness of the composite material, the composite core is difficult to bend when the diameter is large. Therefore, the diameter of a single composite core is set at 5.5mm to 11.0mm in the national standard, and higher strength is required when it is used in large-span areas When using a composite core with a larger cross-section, its tensile force is limited. In order to improve the safety of fiber material composite cores and meet the requirements of large-gage and long-l...

Claims

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Application Information

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IPC IPC(8): H02G7/02
CPCH02G7/02
Inventor 徐静汪传斌陈涛杨伯其王射林戴云飞郑忠敏
Owner FAR EAST CABLE
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