CN105207119B - Electrified span construction method for high-voltage wires and protective device of construction - Google Patents

Electrified span construction method for high-voltage wires and protective device of construction Download PDF

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Publication number
CN105207119B
CN105207119B CN201510579220.9A CN201510579220A CN105207119B CN 105207119 B CN105207119 B CN 105207119B CN 201510579220 A CN201510579220 A CN 201510579220A CN 105207119 B CN105207119 B CN 105207119B
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China
Prior art keywords
assembly pulley
head end
insulation
conducting wires
voltage conducting
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CN201510579220.9A
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CN105207119A (en
Inventor
崔吉生
李卫民
张凯
王恩祥
张剑
齐楠
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State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
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Abstract

The invention discloses an electrified span construction method for high-voltage wires. The method includes the following specific steps that 1, an aerial constructor lifts a pulley block I at the head end and a pulley block II at the head end, and then climbs a ladder stand to the two intact high-voltage wires, and all pulley blocks I and pulley blocks II are sequentially hung onto the two intact high-voltage wires through pulleys located on the outer sides of the pulley blocks; 2, the tail end of an insulated hauling rope is tied on a temporary ground anchor by a ground constructor, the head end of the insulated hauling rope and the head end of an insulated digging rope are tied with balance weights respectively to be thrown over a crossed span object, the head end of the insulated hauling rope and the head end of the insulated digging rope are tied to temporary ground anchors, and the insulated hauling rope and the insulated digging rope are tightened and then inserted in the ground to be fixed through the temporary ground anchors; 3, an old high-voltage wire to be replaced is placed on the insulated hauling rope, then one end of the old high-voltage wire to be replaced is integrally connected with one end of a new high-voltage wire, the new high-voltage wire is dragged to the other end from one end of the insulated hauling rope, and then the new high-voltage wire is mounted on a corresponding cross arm by one constructor.

Description

A kind of high-voltage conducting wires live across construction method and its preventer
Technical field
The present invention relates to a kind of high-voltage conducting wires live across construction method and its preventer.
Background technology
With developing rapidly for power system, many transmission line of electricity improvement projects are brought, it is topmost to bear meeting user In the case of lotus, high-voltage conducting wires are changed.And when changing high-voltage conducting wires, it is related to asking for scissors crossing below many high-voltage conducting wires Topic, such as:Span transmission line, low-voltage distribution wire, highway, river, building construction etc. below high-voltage conducting wires.Changing across area Before wire construction, many manpowers are needed to set up multiple crossing frames, relatively costly, complex operation, engineering time and power off time It is long.Particularly Midspan sag, highway when need ask for instructions to relevant department in advance, need to fulfil assignment after approval at the appointed time, After instruction, the waiting time is long, affects the duration, and the activity duration is short, and operator's operational pressure is big, labor intensity is high.
The content of the invention
The present invention is to solve above-mentioned technical problem, there is provided one kind can reduce construction cost, easy construction, shorten construction A kind of high-voltage conducting wires of time and power off time live across construction method and its preventer.
The present invention technical solution be:
A kind of high-voltage conducting wires live across construction method, and its step is as follows:
1st, cat ladder is set up respectively on two intact high-voltage conducting wires between the pre-replacement high-voltage conducting wires across area side, by Two aerial workmens lift the assembly pulley II of the assembly pulley I and head end of head end respectively, climb cat ladder respectively intact to two High-voltage conducting wires at, each assembly pulley I and assembly pulley II is hung over into two intact height respectively successively by the pulley on the outside of which On pressure wire;
2nd, across area opposite side ground build temporary ground anchor, by ground construction personnel by insulate pull rope tail end tying-up Temporary ground anchor, then pull insulation pull rope head end and insulation drawstring by the assembly pulley I and assembly pulley II of head end from high-voltage conducting wires Move at scissors crossing thing, by the head end difference tying-up counterweight of the head end of insulation pull rope and insulation drawstring from scissors crossing thing Side got rid of, and was building temporary ground anchor across area opposite side ground, interim in insulation pull rope head end and insulation drawstring head end tying-up Earth anchor, and fix ground is inserted in by temporary ground anchor after insulation pull rope and insulation drawstring tension;
3rd, the old high-voltage conducting wires of pre-replacement are pulled down from cross-arm and is placed on insulation pull rope, then by the old high pressure of pre-replacement Wire one end is linked together with new high-voltage conducting wires one end, and the high-voltage conducting wires other end for drawing pre-replacement makes new high-voltage conducting wires exhausted The other end is dragged to from one end on edge pull rope, then new high-voltage conducting wires are arranged on corresponding cross-arm by workmen;
4th, dismantle insulation pull rope head end and insulation drawstring head end temporary ground anchor, and will insulation pull rope and insulation drawstring The counterweight of head end was got rid of from opposite direction above scissors crossing thing, was all drawn assembly pulley I and assembly pulley II by ground construction personnel To aerial workmen position, and assembly pulley I and assembly pulley II are pulled down by aerial workmen and thrown away to ground, aerial constructor Member removes cat ladder in whereabouts ground, temporary ground anchor of dismantling.
A kind of high-voltage conducting wires live across the preventer of construction, including multiple assembly pulley I and assembly pulley II;The pulley Group I and assembly pulley II is that two pulleys by guide roller frame and in guide roller frame are constituted, and is located on guide roller frame Opening is provided between two pulleys thereon, is connected between two neighboring assembly pulley I and two neighboring assembly pulley II Distance-detecting rope, is being connected with insulation drawstring on the assembly pulley I of head end, and the preventer is additionally provided with insulation pull rope, described exhausted Edge pull rope is penetrated by the assembly pulley II of head end, staggeredly bypasses the pulley on the inside of assembly pulley I and assembly pulley II successively, and by pulley The tail end of group I or assembly pulley II is passed.
The invention has the beneficial effects as follows:Can be in two between pre-replacement high-voltage conducting wires piece using assembly pulley I and assembly pulley II Arbitrarily slide on intact high-voltage conducting wires, and the insulation pull rope that staggeredly bypasses between each assembly pulley I and assembly pulley II and Insulation drawstring plays protective frame effect after tensing, it is to avoid many cumbersome process of crossing frame are set up at circuit scissors crossing, Avoid that acrossing highway, high-speed railway, alive circuit etc. are important to need closed channel and circuit power-off, without the need for ask for instructions in advance Relevant department, can be carried out by construction plan, without waiting for, to power department construction operation provide greatly facilitate, save The construction operation time, while saving many man power and materials.This construction method is easy to workmen's grasp, easy to operate, energy Construct in physical features environment complex ground, overcome and the construction difficult problem of crossing frame can not be set up because of many physical features environment complexity.
Description of the drawings
Fig. 1 is the construction schematic diagram of the present invention;
Fig. 2 is the schematic diagram that the high-voltage conducting wires of the present invention live across construction protection device;
Fig. 3 is the structural representation of Fig. 1 middle pulleys group I and assembly pulley II;
In figure:1- assembly pulley I, 2- assembly pulley II, 3- distance-detecting ropes, 4- insulation drawstrings, 5- insulation pull ropes, 6- high pressure lead Line, 7- cat ladders, 8- temporary ground anchors, 101- guide roller frames, 102- pulleys.
Specific embodiment
As illustrated, a kind of high-voltage conducting wires live across construction method, its step is as follows:
1st, the preventer of construction is lived across using high-voltage conducting wires 6, the high-voltage conducting wires 6 live across the protection of construction Device, including multiple assembly pulley I1 and assembly pulley II2;The assembly pulley I1 and assembly pulley II2 are by guide roller frame 101 and install Two pulleys 102 in guide roller frame 101 are constituted, and are set between two pulleys 102 disposed thereon on guide roller frame 101 There is opening, distance-detecting rope 3 is connected between two neighboring assembly pulley I1 and two neighboring assembly pulley II2, positioned at head end Assembly pulley I1 on be connected with insulation drawstring 4, the preventer be additionally provided with insulation pull rope 5, it is described insulation pull rope 5 by head end Assembly pulley II 2 penetrate, staggeredly bypass the pulley 102 on the inside of assembly pulley I1 and assembly pulley II2 successively, and by assembly pulley I1 or The tail end of assembly pulley II2 is passed;
2nd, cat ladder is set up respectively on two intact high-voltage conducting wires 6 between the pre-replacement high-voltage conducting wires 6 across area side 7, lifted the assembly pulley II2 of the assembly pulley I1 and head end of head end by two aerial workmens respectively, climb cat ladder 7 to two respectively At the intact high-voltage conducting wires 6 of root, each assembly pulley I1 and assembly pulley II2 is hung over respectively successively by the pulley 102 on the outside of which On two intact high-voltage conducting wires 6;
3rd, temporary ground anchor 8 is being built across area opposite side ground, the tail end of the pull rope 5 that insulate is being tied up by ground construction personnel It is temporary ground anchor 8, then pulls insulation 5 head end of pull rope and insulation drawstring 4 by the assembly pulley I1 and assembly pulley II2 of head end from high pressure Wire 6 is pulled upward at scissors crossing thing, and the head end of the head end of insulation pull rope 5 and insulation drawstring 4 is distinguished tying-up counterweight from friendship Fork was got rid of across above thing, was building temporary ground anchor 8 across area opposite side ground, in insulation 5 head end of pull rope and insulation drawstring 4 Head end tying-up temporary ground anchor 8, and will insulation pull rope 5 and insulation drawstring 4 tense after ground be inserted in by temporary ground anchor 8 fix;
4th, the old high-voltage conducting wires 6 of pre-replacement are pulled down from cross-arm and is placed on insulation pull rope 5, then by the old height of pre-replacement Pressure 6 one end of wire is linked together with 6 one end of new high-voltage conducting wires, and 6 other end of high-voltage conducting wires for drawing pre-replacement leads new high pressure Line 6 is dragged to the other end from one end on insulation pull rope 5, then new high-voltage conducting wires 6 are arranged on corresponding horizontal stroke by workmen In load;
5th, dismantle insulation 5 head end of pull rope and insulation 4 head end of drawstring temporary ground anchor 8, and will insulation pull rope 5 and insulation The counterweight of 4 head end of drawstring was got rid of from opposite direction above scissors crossing thing, by ground construction personnel by assembly pulley I1 and assembly pulley II2 Aerial workmen position is moved to all, and assembly pulley I1 and assembly pulley II2 are pulled down by aerial workmen and throw away to ground, it is empty Cat ladder 7 is removed on middle workmen whereabouts ground, temporary ground anchor of dismantling 8.

Claims (2)

1. a kind of high-voltage conducting wires live across construction method, it is characterised in that comprise the following steps that:
1) cat ladder is set up respectively on two intact high-voltage conducting wires between the pre-replacement high-voltage conducting wires across area side, by two The aerial workmen of name lifts the assembly pulley II of the assembly pulley I and head end of head end respectively, climbs cat ladder to two respectively intact At high-voltage conducting wires, each assembly pulley I and assembly pulley II is hung over into two intact high pressure respectively successively by the pulley on the outside of which On wire;
2), temporary ground anchor is being built across area opposite side ground, the tail end tying-up of the pull rope that insulate is being faced by ground construction personnel When earth anchor, then pull insulation pull rope head end and insulation drawstring by the assembly pulley I and assembly pulley II of head end from high-voltage conducting wires pull up To at scissors crossing thing, by the head end difference tying-up counterweight of the head end of insulation pull rope and insulation drawstring from above scissors crossing thing Got rid of, temporary ground anchor was being built across area opposite side ground, in insulation pull rope head end with insulation drawstring head end tying-up provisionally Anchor, and fix ground is inserted in by temporary ground anchor after insulation pull rope and insulation drawstring tension;
3), the old high-voltage conducting wires of pre-replacement are pulled down from cross-arm and is placed on insulation pull rope, then the old high pressure of pre-replacement is led Line one end is linked together with new high-voltage conducting wires one end, and the high-voltage conducting wires other end for drawing pre-replacement makes new high-voltage conducting wires in insulation The other end is dragged to from one end on pull rope, then new high-voltage conducting wires are arranged on corresponding cross-arm by workmen;
4), dismantle the temporary ground anchor of insulation pull rope head end and insulation drawstring head end, and will insulation pull rope and insulation drawstring it is first The counterweight at end was got rid of from opposite direction above scissors crossing thing, was all moved to assembly pulley I and assembly pulley II by ground construction personnel Aerial workmen position, and assembly pulley I and assembly pulley II are pulled down by aerial workmen and throw away to ground, aerial workmen Cat ladder is removed on whereabouts ground, temporary ground anchor of dismantling.
2. a kind of high-voltage conducting wires live across the preventer of construction, including multiple assembly pulley I and assembly pulley II;The assembly pulley I and assembly pulley II are that two pulleys by guide roller frame and in guide roller frame are constituted, and on guide roller frame are located at which On two pulleys between be provided with opening, it is fixed to be connected between two neighboring assembly pulley I and two neighboring assembly pulley II Away from rope, insulation drawstring is being connected with the assembly pulley I of head end, the preventer is additionally provided with insulation pull rope, the insulation Pull rope is penetrated by the assembly pulley II of head end, staggeredly bypasses the pulley on the inside of assembly pulley I and assembly pulley II successively, and by assembly pulley The tail end of I or assembly pulley II is passed.
CN201510579220.9A 2015-09-12 2015-09-12 Electrified span construction method for high-voltage wires and protective device of construction Active CN105207119B (en)

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CN201510579220.9A CN105207119B (en) 2015-09-12 2015-09-12 Electrified span construction method for high-voltage wires and protective device of construction

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Application Number Priority Date Filing Date Title
CN201510579220.9A CN105207119B (en) 2015-09-12 2015-09-12 Electrified span construction method for high-voltage wires and protective device of construction

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CN105207119B true CN105207119B (en) 2017-04-19

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CN108512123B (en) * 2018-06-13 2024-02-02 贵州电网有限责任公司 Quick net sealing device for high-voltage transmission line

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CN201315444Y (en) * 2008-11-20 2009-09-23 四川电力送变电建设公司 Suspended cable basket blocking net charged crossing support
CN201355751Y (en) * 2009-01-23 2009-12-02 湖北省输变电工程公司 Electrified spanning frame of insulated cable net
JP2011172448A (en) * 2010-02-22 2011-09-01 Chugoku Electric Power Co Inc:The Device for preventing guide rope from dropping down, and method for stretching guide rope
CN203377546U (en) * 2013-08-05 2014-01-01 国家电网公司 High speed railway spanning construction apparatus
CN203722136U (en) * 2014-03-01 2014-07-16 安徽送变电工程公司 Insulation rope net apparatus for railway crossing tension stringing construction
CN204424793U (en) * 2014-12-29 2015-06-24 国家电网公司 A kind of block crossing frame of power circuit
CN204577983U (en) * 2015-04-30 2015-08-19 国网山西省电力公司信息通信分公司 A kind of coaster setting up leads span net

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Inventor after: Cui Jisheng

Inventor after: Li Weimin

Inventor after: Zhang Kai

Inventor after: Wang Enxiang

Inventor after: Zhang Jian

Inventor after: Qi Nan

Inventor before: Li Weimin

Inventor before: Zhang Kai

Inventor before: Wang Enxiang

Inventor before: Zhang Jian

Inventor before: Qi Nan

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