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A pre-twisted tension clamp with monitoring function

A tension clamp and pre-twisted technology, applied in the field of overhead line fittings, can solve the problem of no tension and temperature monitoring, and achieve the effects of avoiding cross-sensitivity effects, small structural changes, and strong operability.

Active Publication Date: 2016-04-06
ZHEJIANG ZHONGXIN POWER MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing pre-twisted strain clamps are only used for fixing the middle and terminal of conductors and overhead optical cables, and do not have the functions of tension and temperature monitoring.

Method used

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  • A pre-twisted tension clamp with monitoring function
  • A pre-twisted tension clamp with monitoring function
  • A pre-twisted tension clamp with monitoring function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The following is attached figure 1 and 2 , the present invention will be described in further detail.

[0021] A pre-twisted tension clamp with monitoring function, comprising a tension pre-twisted wire 1 and a matching connecting fitting 2, the tension pre-twisted wire 1 consists of two helical metal wires 101 and a built-in monitoring The helical metal tubes 102 of the optical fiber 1021 are bonded side by side, and the tension-resistant pre-twisted wire 1 composed of two helical metal wires 101 and the helical metal tube 102 with the built-in monitoring optical fiber 1021 is folded in half to make a U-shaped bend The head 11 and the U-shaped elbow 11 are set on the connecting ring of the connecting fitting 2 so that the tension clamp is connected with the pole tower, and the remaining parts (legs) 12 of the tension pre-twisted wire 1 are evenly arranged to form an empty pipe.

[0022] The inner diameter of the empty tube formed by the legs 11 of the tension pre-str...

Embodiment 2

[0027] The following is attached image 3 and 4 , the present invention will be described in further detail.

[0028] The difference from Example 1 is that a pre-twisted tension clamp with monitoring function includes tension pre-twisted wire 1 and matching connecting hardware 2, and also includes inner layer pre-twisted wire 3, inner layer pre-twisted wire 3 There are several sub-bundles 301. In this embodiment, the inner pre-twisted wire 3 has 4 sub-bundles, respectively 31, 32, 33 and 34, wherein the sub-bundles 31, 32 and 33 are composed of 4 helical metal wires 301 It is bonded and fixed side by side, and the sub-bundle 34 is formed by bonding and fixing three helical metal wires 301 and one helical metal tube 302 with a built-in monitoring optical fiber 3021 side by side. In order to increase the frictional force, corundum is bonded inside the helical metal wire 301 and the helical metal tube 302 . The inner layer pre-twisted wire 3 including the above four sub-bundle...

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Abstract

The invention discloses a pre-twisted tension clamp with monitoring function, which comprises a tension pre-twisted wire and matching connecting fittings. The tension pre-twisted wire consists of several spiral metal wires and at least one monitoring optical fiber Spiral metal tubes are bonded side by side. The tension-resistant pre-twisted wire composed of spiral metal wire and spiral metal tube with built-in monitoring optical fiber is folded in half to make a U-shaped elbow. The U-shaped elbow is set on the connection of the connecting hardware. In this way, the tension clamp is connected with the pole tower, and the rest of the tension pre-twisted wire is evenly arranged to form an empty tube. The clamp has the characteristics of high grip strength and simple installation, and it has the function of temperature and tension monitoring, so as to monitor the operation status of the overhead transmission line in real time, which is conducive to ensuring the safe operation of the transmission line.

Description

technical field [0001] The invention relates to overhead line fittings, in particular to a pre-twisted strain clamp with monitoring function. Background technique [0002] The pre-twisted strain clamp is a widely used strain clamp, which is used for fixing the middle and terminal of overhead line conductors and overhead optical cables. It has high grip force, light weight, uniform stress distribution and good corrosion resistance. , Simple installation, strong versatility, etc., are widely used in conductors and overhead composite ground wire OPGW, overhead composite phase wire OPPC, all-dielectric self-supporting overhead optical cable ADSS and other overhead optical cables. [0003] The structure of the pre-twisted tension clamp is simple, and it is generally composed of pre-twisted tension pre-twisted wire and matching connecting fittings. The supporting connecting fittings include heart-shaped or U-shaped connecting rings, extension rods or hanging plates, and hanging ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/02G02B6/48G01K11/32G01L5/04
Inventor 刘航杰涂勤昌孙梦翔李浩泉
Owner ZHEJIANG ZHONGXIN POWER MEASUREMENT & CONTROL TECH
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