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Obstacle bridging construction method for power line wiring and wiring pulleys

A technology that crosses obstacles and power lines. It is applied in the direction of overhead lines/cable equipment. It can solve the problems of high wiring cost and low efficiency, and achieve the effects of simple manufacturing process, stable movement and reliable use.

Inactive Publication Date: 2012-11-14
STATE GRID ZHEJIANG JIASHAN POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method is still restricted by many environmental and geographical factors, and requires the manipulation and cooperation of many workers on the ground. The cost of wiring is very high and the efficiency is low.

Method used

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  • Obstacle bridging construction method for power line wiring and wiring pulleys
  • Obstacle bridging construction method for power line wiring and wiring pulleys
  • Obstacle bridging construction method for power line wiring and wiring pulleys

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] The present invention will be further described below by way of examples.

[0030] The construction methods of power line strung across obstacles are as follows:

[0031] (1) First place three traction ropes 2 and one front stay cable 3 between the two towers 1 that need to lay wires, and fix them between the two towers 1. The tail ends of each traction rope 2 are respectively connected to three wires to be laid. The middle wire 4 and the two side wires 5 are as figure 1 shown.

[0032] (2) The three traction ropes 2 respectively pass through two blocks 6 arranged in front and back at one end of the pole tower 1, and each block group 6 has a main block 7 and two sub-blocks 8, and the two sub-blocks 8 are connected by connecting Rope 9 is connected with main tackle 7, and front stay cable 3 is connected with first tackle group 6, and is connected in series by fixed rope 10 between two tackle groups 6, and the length of fixed rope is 30-40 meter. A backstay 11 is fixed...

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Abstract

The invention discloses an obstacle bridging construction method for power line wiring and wiring pulleys. The method is convenient and quick to construct, small in labor number and high in universality. The method sequentially includes: laying three pulling ropes and a front dragline, enabling the tree pulling ropes to respectively penetrate through at least one pulley block at one ends of towers, pulling the pulling rope in a main pulley to enable a middle guide line to go through from one tower to another tower under the suspension of the other two pulling ropes and auxiliary pulleys, pulling the pulling rope in the two auxiliary pulleys to enable two side guide lines to go through from one tower to another tower under the suspension of the auxiliary pulleys, and recovering the pulley block to finish wiring works of enabling the guide lines to pass through the obstacles. The whole wiring process is performed on the two towers, each guide line is suspended through the pulling ropes without contacting with the ground and free of control by people standing below, so that damages to ground crops and blockage to traffic lines below the guide lines are avoided.

Description

technical field [0001] The invention relates to a method for strung wire in an electric power system and a trolley used for strung wire, and more specifically relates to a construction method for crossing obstacles by strung wire of a power line and a trolley for strung wire. Background technique [0002] In the process of laying overhead lines of power lines, sometimes it is often necessary to straddle obstacles, such as other lines, roads, railways, bridges, rivers, tall plant forests, crop fields, etc. Restrictions such as crossing object height, width, geographical location, etc., the crossing operation is complicated, the workload and difficulty are large, the power outage time is long, the impact on the ground is large, roads or waterways are required to be closed, the vegetation on the ground is damaged, and disputes over claims, etc. question. It has a strong impact on the progress and efficiency of stringing, and the whole stringing is labor-intensive. Although th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 韩明华李平
Owner STATE GRID ZHEJIANG JIASHAN POWER SUPPLY CO LTD
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