CN103532052A - Live erection of simple crossing structure on ADSS (all-dielectric self-supporting optic fiber cable) and implementation method - Google Patents

Abstract

The invention provides live erection of a simple crossing structure on an ADSS and an implementation method. An established tower of an electric power system is used to erect the simple crossing structure on the ADSS, a worker on the tower fixes a pulley on an insulation tackle on an overhead lightning conductor, the ADSS performs sag regulation through an insulation crossing tackle, and a worker on the ground controls the height of the insulation crossing tackle through controlling an insulation rope. Compared with the prior art, the live erection of the simple crossing structure on the ADSS and the implementation method have the benefits that limitation from turnaround plan arrangement is avoided; potential personal injury hazard happening during crossing structure erection can be avoided; power cut time is reduced, and power supply reliability for work is improved; and ground investment is saved, utilization is convenient, and safety and convenience are provided.

Description

A simple spanning frame for live erection of ADSS optical cable and its implementation method

technical field

The invention relates to the field of spanning frames, in particular to a simple spanning frame for live erection of ADSS optical cables and an implementation method.

Background technique

In the erection process of power line overhead lines, high-voltage power lines often need to cross low-voltage power overhead lines, communication lines, optical cable lines and other obstacles, and when crossing occurs, it is usually necessary to build temporary crossing frames, but Due to the large number of crossing points, the distance between the lines that need to be crossed is relatively low and the distance between them is relatively narrow. If these lines are crossed, it will be labor-intensive and time-consuming to build crossing frames, which will not only increase the construction investment of the line, but also prolong the construction. cycle.

At present, the working principle of the traditional method of erecting the spanning frame with electricity is that it is strictly forbidden to work on it before the stay wire is fixed; The bottom of the spanning frame should be fixed firmly, and the strength of the top cap should meet the requirements of the carrying capacity and be firmly tied; when the spanning frame height exceeds 9 meters, the top and waist should be equipped with pull wires, and anti-dumping reinforcement measures should be taken at the middle joints. A special person shall be appointed to be in charge of contacting the power outage, and to issue a work ticket to the operation department. It is strictly forbidden to verbally make an appointment to stop or transmit power; Restricted by the maintenance plan, there is a potential for personal injury, and the power outage lasts for a long time.

Contents of the invention

The object of the present invention is to provide a kind of ADSS optical cable electrified erection simple spanning frame and implementation method, utilize electric power system to build pole tower, set up simple spanning frame tower on ADSS optical cable, the personnel fix the pulley on the insulating block on the overhead lightning protection line, The slack of the ADSS optical cable is adjusted through the insulation spanning block, and the ground personnel control the height of the insulation spanning block by controlling the insulation rope. It has the advantages of good economic effect, convenient daily maintenance and quick construction.

To achieve the above object, the present invention adopts the following technical solutions:

A simple spanning frame for live erection of an ADSS optical cable, comprising an insulating spanning block, an insulating block, and an insulating rope, characterized in that the insulating spanning block is arranged on the ADSS optical cable, the insulating block is arranged on the lightning protection line, and the insulating spanning block is connected to the insulating The tackle is connected by an insulating rope.

Specific steps are as follows:

1) The staff takes the simple spanning frame to the cross-arm of the lightning conductor, and hangs the upper pulley of the insulated trolley on the lightning conductor;

2) Then fix the insulation spanning trolley on the ADSS optical cable;

3) By controlling the insulating rope, the requirements for the spanning distance of the object to be spanned are met, or the height of the insulating spanning block is controlled.

Compared with prior art, the beneficial effect of the present invention is:

1) Not subject to maintenance plan arrangements.

2) It can avoid the hidden danger of personal injury when setting up the spanning frame.

3) Reduce the power outage time and improve the power supply reliability of the operation.

4) Save ground investment, easy to use, safe and convenient.

Description of drawings

Fig. 1 is a structural diagram of the present invention.

1-Insulation spanning block 2-Insulation block 3-Insulation rope 4-Lightning wire 5-ADSS optical cable

Detailed ways

The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

As shown in Figure 1, the ADSS optical cable live erection simple spanning frame is composed of insulating spanning block 1, insulating block 2, and insulating rope. The spanning block 1 is connected with the insulating block 2 through an insulating rope 3 .

The implementation method of erecting the ADSS optical cable by using a spanning frame, the specific steps are as follows:

1) The staff takes the simple spanning frame to the cross arm of the lightning protection line 4, and hangs the upper pulley of the insulating block 2 on the lightning protection line 4;

2) Then fix the insulation spanning trolley 1 on the ADSS optical cable 5;

3) By controlling the insulating rope 3, the requirement for the spanning distance of the object to be spanned is met, or the height of the insulating spanning tackle 1 is controlled.

Before the operation starts, the operator carefully checks the connection of each part of the simple spanning frame; the insulation condition of the insulating rope 3, the insulating tackle 2, and the insulating spanning tackle 1; the equipotential electrician should wear a full set of qualified shielding clothing, and the connections of each part are reliable. The resistance at the farthest end of the service shall not be greater than 20Ω.

Claims (2)

1. an ADSS optical cable is charged sets up simple and easy crossing frame, comprise insulation crossing block, insulation coaster, insulating cord, it is characterized in that, described insulation crossing block is arranged on ADSS optical cable, insulation coaster is arranged on lightning conducter, and insulation crossing block is connected by insulating cord with insulation coaster.

2. the implementation method that adopts crossing frame claimed in claim 1 to set up ADSS optical cable, is characterized in that, concrete steps are as follows:

1) staff brings to lightning conducter cross-arm place by simple and easy crossing frame, and insulation coaster top sheave is hung on lightning conducter;

2) again insulation crossing block is fixed on ADSS optical cable;

3), by controlling insulating cord, meet object being spanned and cross over required distance, or control the height of insulation crossing block.

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