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Mounting method for optical cable tackle suspension and accessories thereof based on two single-wheel tackles

An installation method and the technology of double pulleys, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of large consumption of special construction materials, excessive use of construction tools, and reduced construction work efficiency, so as to reduce the waste of construction materials and stabilize the pulley Good performance and easy construction and operation

Active Publication Date: 2014-02-05
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In the process of laying out the optical cable, the trolley is easy to move inward due to the force, which may easily cause the trolley to swing and cause the optical cable to fall out of the groove; in the process of installing accessories after tightening the line, relatively many construction tools are used, which makes the construction difficult and greatly The efficiency of construction work is reduced, and the consumption of special construction materials is also relatively large, which increases the construction cost

Method used

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  • Mounting method for optical cable tackle suspension and accessories thereof based on two single-wheel tackles
  • Mounting method for optical cable tackle suspension and accessories thereof based on two single-wheel tackles
  • Mounting method for optical cable tackle suspension and accessories thereof based on two single-wheel tackles

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specific Embodiment

[0047] During the wiring construction of a ±800kV UHV DC transmission line across the Yellow River, the specific installation process of the optical cable pulley and accessories is as follows:

[0048] The first step: determine the relevant parameters of the optical cable. The type of optical cable in the ±800kV UHV DC transmission line across the Yellow River is OPGW-300, such as image 3 As shown, the double fulcrum pre-twisted suspension clamp 1 is used, the length of the structural reinforcement strip L1=3400mm, and the total height of the clamp connected to the hanging plate is about 600mm.

[0049] Step 2: Assembly and suspension of single wheel and double block. like Figure 4 As shown, in the ±800kV UHV DC transmission line across the Yellow River, the optical cable pay-off block is a nylon 1040 type block, in which the wheel diameter is 1040mm, the bottom diameter of the wheel groove is 900mm, the groove width is 125mm, and the allowable load is 100KN. ...

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Abstract

The invention discloses a mounting method for optical cable tackle suspension and accessories thereof based on two single-wheel tackles. The method comprises the following operating steps that related parameters of an optical cable and related parameters of accessories of the optical fiber are determined; the parameters of the optical cable and the parameters of the accessories used by the optical cable are determined according to construction design requirements, and optical cable paying-off tackles and related construction devices and tools are selected referring to the parameters, wherein the parameters comprise the model number of the optical cable, the structure of cable clips and the length of structure strengthening bars. According to the method, the two tackles are connected through a supporting rod of a certain length, and are suspended below vertical construction holes near optical cable suspending points of a bridge tower by using steel slings, and mounting of the structure strengthening bars and mounting of the cable clips can be directly carried out between the two tackles after cable is tightened.

Description

technical field [0001] The present invention is an optical cable trolley and its accessories installation method used in the wire construction of transmission lines, especially a kind of suspension of optical cable trolley based on single-wheel double trolley and its installation method in the construction of long-span UHV direct current transmission line. How to install accessories. Background technique [0002] The erection of optical cables is an important link in the construction of transmission lines. Under the premise of ensuring the construction quality in accordance with the construction technical standards of transmission line engineering, how to improve the work efficiency and safety of the optical cable deployment, shorten the construction period, reduce the labor intensity of personnel, and save construction costs are the key considerations in the process of wire erection construction. links. Due to the particularity of the large span construction environment, ...

Claims

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Application Information

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IPC IPC(8): H02G1/02
Inventor 张军刘万东张红涛郭天兴赵根保白俊锋罗晓东
Owner STATE GRID CORP OF CHINA
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