CN103500964A - Method of live-wire replacement of overhead ground wire - Google Patents
Method of live-wire replacement of overhead ground wire Download PDFInfo
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- CN103500964A CN103500964A CN201310445400.9A CN201310445400A CN103500964A CN 103500964 A CN103500964 A CN 103500964A CN 201310445400 A CN201310445400 A CN 201310445400A CN 103500964 A CN103500964 A CN 103500964A
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Abstract
The invention discloses a method of live-wire replacement of an overhead ground wire. The method comprises the following steps of a, mounting a transfer rope; b, directionally guiding the end of the new overhead ground wire to an overhead ground wire support on a paying-off tower; c, suspending a head tackle and at least one turnover tackle on the old overhead ground wire; d, operating a first wire grip so as to stress the first grip; e, starting paying-off work; f, tightening the first wire grip by a worker on a stringing tower; g, tightening the new overhead ground wire, and turning all turnover tackles by 180 degrees; h, clipping excessive new overhead ground wires by the worker on the paying-off tower; i, dismounting an old strain clamp on the stringing tower by the worker on the stringing tower, and connecting to the head tackle; and dismounting the old strain clamp on the paying-off tower by the worker on the paying-off tower; j, recycling; k, connecting a jumper lead on the new overhead ground wire and an anti-shock hammer by the worker on the paying-off tower and the worker on the stringing tower, removing and recycling all tools, and ending the replacement work.
Description
Technical field
The present invention relates to a kind of method of charged for replacement overhead ground wire, be applied to transmission line isolated shelves pole tower forms and shaft tower and be the situation that " mountain " font is arranged.
Background technology
In the process of transmission line operation, personnel, shaft tower and overhead ground wire etc. all must keep certain safe distance with live wire.According to the difference of electric pressure, safe distance also is not quite similar.For example, electric pressure is 110Kv, and required job safety distance is 3.0m; Electric pressure is 220Kv, and required job safety distance is 4.0m; Electric pressure is 500Kv, and required job safety distance is 6.0m.
In order to guarantee above-mentioned safe distance, do not discharge, the accident such as electric shock, existingly to change the overhead ground wire operation and be based on the power failure condition and complete, the main instrument adopted has: hauling machine, insulating cord, coaster, double-hook wire grip etc.Replacing flow process at overhead ground wire is as described below.
At first, the work director is turned load and the operation that has a power failure to dispatcher's application to the operation circuit;
The second, the operating personnel steps on bar the overhead ground wire wire clamp is opened, and uses insulation ropes that old overhead ground wire is connected with hauling machine, is reclaimed;
The 3rd, old overhead ground wire, after shaft tower is pulled, then takes above-mentioned steps that the traction of new overhead ground wire is in place;
The 4th, the operating personnel steps on bar, and the overhead ground wire wire clamp is fastening;
The 5th, the work director reports the work complete to the dispatcher, recovers power transmission.
This kind of replacing technology is cost-effective for long distance is changed overhead ground wire, if but only short-range one section or several short haul circuits sections of disperseing are changed, the layout that need in each process of changing, have a power failure and operate and repeat the operation Work tool, this can have a strong impact on the reliability of circuit.In addition, if operating location is positioned at the areas such as mountain area, the apparatuses such as hauling machine can't be arranged according to the requirement of job instruction, change operation and will be difficult to carry out.
Summary of the invention
Technical problem to be solved by this invention is: for the operation of original replacing overhead ground wire, in order to guarantee ground wire to the safe distance of wire and to utilize the equipment such as hauling machine and the problem that must have a power failure and change.
The present invention is directed to isolated shelves and wait the short haul circuits section, adopt the instrument that meets wire diameter and safe distance requirement, complete the work in place of new overhead ground wire in manpower traction's mode.Utilize the effect of gravity and tension force, complete transposition work new, old overhead ground wire.In operation process, ground wire keeps with the below alive circuit safe distance meeted the requirements all the time.
The technical scheme that the present invention takes is:
A kind of method of charged for replacement overhead ground wire, comprise the steps:
A, operating personnel carry the transmission rope and step on respectively to the unwrapping wire tower of need replacing overhead ground wire and the overhead ground wire support place of stringing tower, install and transmit rope, lay down old overhead ground wire stockbridge damper, take the wire jumper lead-in wire of old overhead ground wire apart, by transmission, restrict and transmit required instrument;
Operating personnel on b, unwrapping wire tower coordinates with the Ground Operation personnel, guides new overhead ground wire termination orientation into overhead ground wire support on the unwrapping wire tower; Wherein, described new overhead ground wire is guided the overhead ground wire support on the unwrapping wire tower into through after being arranged on the fixed block on unwrapping wire tower tower bar;
Operating personnel on c, unwrapping wire tower hangs over the leading coaster in step a instrument and the upset coaster of at least one on old overhead ground wire, and new overhead ground wire is fixed on leading coaster after passing the upset coaster; While is the insulating cord in equal Connection Step a instrument between leading coaster and upset coaster and between every adjacent two upset coasters; Pull rope one end in step a instrument is fixed on leading coaster, and the other end is held in Ground Operation personnel's hand; Now Ground Operation personnel pulling traction rope drives the overhead ground wire support place slip of leading coaster to the stringing tower;
Operating personnel on d, stringing tower is arranged on the first wire grip in step a instrument on old overhead ground wire, and operates the first wire grip, makes the first wire grip stressed, makes old overhead ground wire slightly tighten up a bit;
E, setting-out work start, and Ground Operation personnel pulling traction rope pulls to new overhead ground wire at the overhead ground wire support place of stringing tower;
F, new overhead ground wire arrive the overhead ground wire support place of stringing tower, and the operating personnel on the stringing tower tightens up the first wire grip, make the old strain insulator folder on the old overhead ground wire of stringing tower end lax; The first new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the stringing tower, and the other end clamps the termination of new overhead ground wire;
Operating personnel on g, unwrapping wire tower adopts the second wire grip in step a instrument, tightens up new overhead ground wire, makes the degree of speeding of new overhead ground wire be less than the degree of speeding of old overhead ground wire; Now all rollovers coaster overturns 180 ° under the effect of old overhead ground wire self gravitation, and new overhead ground wire is positioned at the top of old overhead ground wire;
H, the second new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the unwrapping wire tower, the other end clamps and is positioned at new overhead ground wire on the unwrapping wire tower, and the operating personnel on the unwrapping wire tower cuts off unnecessary new overhead ground wire;
Operating personnel on i, stringing tower pulls down the old strain insulator folder on the stringing tower, and is connected on leading coaster; Leading coaster is connected with an end of pull rope in step a instrument, and the other end of pull rope is held in Ground Operation personnel's hand; Operating personnel on the unwrapping wire tower pulls down the old strain insulator folder on the unwrapping wire tower;
J, reclaim old overhead ground wire, the Ground Operation personnel pull the second pull rope, the operating personnel on the unwrapping wire tower will overturn coaster, insulating cord, leading coaster, pull rope withdrawal one by one; The Ground Operation personnel are pulled to ground by old overhead ground wire and regain;
Operating personnel on k, unwrapping wire tower and the operating personnel on the stringing tower connect wire jumper lead-in wire, the stockbridge damper on new overhead ground wire, and remove whole instruments of regaining, and change end-of-job.
In order to guarantee in anti-line process, distance and movement velocity between leading coaster and each upset coaster are consistent, and in step c of the present invention, insulating cord is equal in length.
In order to be applicable to the requirement of different terrain, expand its range of application and recycling rate of waterused, the leading coaster in step c of the present invention is provided with balancing weight.
Control the payingoff speed of new overhead ground wire in described step e, its velocity interval is the 0.5-2.0 meter per second.
The upset coaster of at least one described in step c of the present invention hangs on old overhead ground wire; The method of replacing overhead ground wire of the present invention, the quantity of the upset coaster that wherein adopted depends primarily on the distance between unwrapping wire tower and take-up tower, if the distance between unwrapping wire tower and take-up tower is long, the multiple spot that the quantity of upset coaster can design; Otherwise, few point that the quantity of upset coaster can design.In the present invention the quantity design of upset coaster the number, the method step of replacing overhead ground wire of the present invention can not change.
Leading coaster described in the present invention comprises pulley, " U " type fixed head, anti-drop hook, clamping plate and base plate, described pulley is arranged in " U " type fixed head, be provided with the folding side plate by forwarding on a side plate of " U " type fixed head, clamping plate are connected with " U " type fixed head, and base plate adopts detachable connected mode to be connected with clamping plate; A side of described clamping plate is provided with the anti-drop hook fixed teeth, and aforesaid folding side plate contacts with clamping plate through the anti-drop hook fixed teeth; The stiff end of described anti-drop hook is arranged on " U " type fixed head and is positioned at the top of folding side plate, and the movable end of anti-drop hook is arranged on the anti-drop hook fixed teeth; The described base plate plane corresponding with clamping plate is provided with the groove for fixing new overhead wire.
In order to facilitate the fixing of balancing weight, the center of base plate of the present invention is provided with for the connecting hole of counterweight is installed.
Upset coaster described in the present invention comprises upper strata side plate, lower floor's side plate, two pulley sheaves and two hooks; Between described upper strata side plate and lower floor side plate, by cushion block, be connected, upper strata side plate and lower floor's side plate are all about the central shaft symmetry of cushion block, and described two pulley sheaves are fixed between upper strata side plate, lower floor's side plate and are positioned at the both sides of cushion block; All leave space between described two pulley sheaves and cushion block, described upper strata side plate be provided with two grooves and groove corresponding with space, groove is corresponding with space; Forward to and be provided with two opening-closing plates on the side plate of described upper strata, opening-closing plate is positioned at the top of groove, and opening-closing plate is positioned at the top of groove; Two hooks are separately positioned on the top of two opening-closing plates for preventing the automatic disengagement of two opening-closing plates.
The first wire grip described in the present invention, the second wire grip are in prior art and are applied to change the wire grip in the overhead ground wire operation, and its concrete structure and concrete operating process the present invention are not described in detail.
Fixed block described in step b of the present invention is to be applied to change the fixed block in the overhead ground wire operation in prior art, and its concrete structure and concrete operating process the present invention are not described in detail.
The present invention's advantage compared with prior art: 1, the method for replacing overhead ground wire of the present invention does not need at Renewal process the operation that has a power failure, and directly hot line job has improved operating efficiency greatly.2, the method for replacing overhead ground wire of the present invention ground wire and live wire in the power transmission line overhead ground wire Renewal process remains in the safe distance scope, safe.3, the method for replacing overhead ground wire of the present invention is applicable to the new clothes ground wire and can not maybe should not installing the situation of hauling machine.4, the method for replacing overhead ground wire of the present invention can reclaim old overhead ground wire in the overhead ground wire Renewal process.
The accompanying drawing explanation
Fig. 1 is the structural representation of the leading coaster of the present invention.
Fig. 2 is the overturn front view of coaster of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2.
Wherein, 1, pulley, 2, " U " type fixed head, 3, anti-drop hook, 4, the folding side plate, 6, base plate, 7, clamping plate, 8, the anti-drop hook fixed teeth, 9, the upper strata side plate, 10,10 ＇ pulley sheaves, 11,11 ＇ hooks, 12,12 ＇ opening-closing plates, 13, cushion block, 14,14 ＇ spaces, 15,15 ＇ grooves, 16, lower floor's side plate.
Embodiment
For content of the present invention is become apparent more, below in conjunction with accompanying drawing 1-accompanying drawing 3 and embodiment, be further described.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Adopt the instruments such as leading coaster, upset coaster in the present embodiment, complete the work in place of new overhead ground wire in manpower traction's mode.Utilize in the course of the work the effect of gravity and tension force, complete transposition work new, old overhead ground wire simultaneously.
Leading coaster comprises pulley 1, " U " type fixed head 2, anti-drop hook 3, clamping plate 7 and base plate 6.
The upset coaster comprises upper strata side plate 9, lower floor's side plate 16, two pulley sheave 10,10 ＇ and two hook 11,11 ＇.
Pulley 1 in leading coaster rotates by connecting axle and is arranged in " U " type fixed head 2, the lower end of " U " type fixed head 2 is connected in clamping plate 7, folding side plate 4 is arranged on a side plate of " U " type fixed head 2 by hinge through, and base plate 6 is connected with clamping plate 7 by bolt.A side of clamping plate 7 is provided with anti-drop hook fixed teeth 8, and aforesaid folding side plate 4 contacts with clamping plate 7 through anti-drop hook fixed teeth 8; The stiff end of described anti-drop hook 3 is arranged on " U " type fixed head 2 and is positioned at the top of folding side plate 4, and the movable end of anti-drop hook 3 is arranged on anti-drop hook fixed teeth 8; Described base plate 6 plane corresponding with clamping plate 7 is provided with the groove for fixing new overhead wire.
In use, leading coaster hangs on old overhead wire leading coaster, also is fixed with new overhead wire, insulating cord and pull rope on leading coaster simultaneously.What it was concrete is operating as: the first step, anti-drop hook 3 is opened, make the movable end of anti-drop hook 3 leave anti-drop hook fixed teeth 8, folding side plate 4 is flipped an angle and opens, old overhead wire is penetrated, make pulley 1 hanger on old overhead wire, folding side plate 4 is closed, the movable end of anti-drop hook 3 is fixedly on anti-drop hook fixed teeth 8.Second step, base plate 6 is unclamped with the bolt that clamping plate 7 are connected, make base plate 6 and clamping plate 7 reserve certain distance, new overhead wire is inserted in the groove on base plate 6, tighten the bolt that base plate 6 is connected with clamping plate 7, now base plate 6 clamps new overhead wire firmly with clamping plate 7.The 3rd step, be fixed on balancing weight on the connecting hole at base plate 6 centers.The 4th step, by insulating cord with pull rope all is fixed on balancing weight or in the connecting hole on base plate 6.
In the present invention, between the upper strata side plate 9 of upset in coaster and lower floor side plate 16, by cushion block 13, be connected, upper strata side plate 9 is with lower floor's side plate 16 all about the central shaft symmetry of cushion block 13, and described two pulley sheaves, 10,10 ＇ are fixed between upper strata side plate 9, lower floor's side plate 16 and are positioned at the both sides of cushion block 13; All leave space 14,14 ＇ between described two pulley sheaves, 10,10 ＇ and cushion block 13, described upper strata side plate 9 be provided with two grooves, 15,15 ＇ and groove 15 corresponding with space 14, groove 15 ＇ are corresponding with space 14 ＇; Forward on described upper strata side plate 9 and be provided with two opening-closing plates, 12,12 ＇, opening-closing plate 12 is positioned at the top of groove 15, and opening-closing plate 12 ＇ are positioned at the top of groove 15 ＇; Two hook 11,11 ＇ are separately positioned on the top of two opening-closing plate 12,12 ＇ for preventing the automatic disengagement of two opening-closing plates, 12,12 ＇.
In use, the upset coaster hangs on old overhead wire the upset coaster, on the upset coaster, also penetrates new overhead wire, also needs the fixed insulation rope on the coaster that simultaneously overturns.What it was concrete is operating as: the first step, the upset coaster hangs on old overhead wire, and this step only need be opened hook 11, opening-closing plate 12 is also flipped an angle and opens simultaneously, old overhead wire is penetrated in space 14 by groove 15, by pulley sheave 10 hangers on old overhead wire.Second step, adopt the method identical with the first step that new overhead wire is penetrated in 14 ＇ of space by groove 15 ＇.The 3rd step, be fixed on insulating cord on lower floor's side plate of upset coaster.The first step in this operation also can be opened hook 11 ＇ are opened, and opening-closing plate 12 ＇ is also flipped an angle and opens simultaneously, old overhead wire is penetrated in 14 ＇ of space by groove 15 ＇, by pulley sheave 10 ＇ hangers on old overhead wire.
In the present embodiment, adopt 10 upset coasters and 10 long lightweight insulating cords of 20m to complete the charged for replacement overhead ground wire.
The method of charged for replacement overhead ground wire, comprise the steps:
A, operating personnel carry the transmission rope and step on respectively to the unwrapping wire tower of need replacing overhead ground wire and the overhead ground wire support place of stringing tower, install and transmit rope, lay down old overhead ground wire stockbridge damper, take the wire jumper lead-in wire of old overhead ground wire apart, by transmission, restrict and transmit required instrument;
Operating personnel on b, unwrapping wire tower coordinates with the Ground Operation personnel, and new overhead ground wire is guided the overhead ground wire support on the unwrapping wire tower into through after being arranged on the fixed block on unwrapping wire tower tower bar;
Operating personnel on c, unwrapping wire tower adopts above-mentioned method of operation by 1 leading coaster and 10 upset coasters in step a instrument, 1 leading coaster and 10 upset coasters are hung on old overhead ground wire, and new overhead ground wire is fixed on leading coaster after passing the upset coaster; While is the insulating cord in equal Connection Step a instrument between leading coaster and upset coaster and between every adjacent two upset coasters; Pull rope one end in step a instrument is fixed on leading coaster, and the other end is held in Ground Operation personnel's hand; Now Ground Operation personnel pulling traction rope drives the overhead ground wire support place slip of leading coaster to the stringing tower;
Operating personnel on d, stringing tower is arranged on the first wire grip in step a instrument on old overhead ground wire, and operates the first wire grip, makes the first wire grip stressed; Old overhead wire tightens up slightly; The purpose that makes old overhead wire tighten up a little in this step is in order to make in subsequent step, and the safe distance of new, old overhead ground wire and live wire increases, and facilitates the in place of new overhead ground wire simultaneously.
E, setting-out work start, and Ground Operation personnel pulling traction rope pulls to new overhead ground wire at the overhead ground wire support place of stringing tower;
F, new overhead ground wire arrive the overhead ground wire support place of stringing tower, and the operating personnel on the stringing tower tightens up the first wire grip, make the old strain insulator folder on the old overhead ground wire of stringing tower end lax; The first new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the stringing tower, and the other end clamps the termination of new overhead ground wire;
Operating personnel on g, unwrapping wire tower adopts the second wire grip in step a instrument, tightens up new overhead ground wire, makes the degree of speeding of new overhead ground wire be less than the degree of speeding of old overhead ground wire; Now all rollovers coaster overturns 180 ° under the effect of old overhead ground wire self gravitation, and new overhead ground wire is positioned at the top of old overhead ground wire;
H, the second new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the unwrapping wire tower, the other end clamps and is positioned at new overhead ground wire on the unwrapping wire tower, and the operating personnel on the unwrapping wire tower cuts off unnecessary new overhead ground wire;
Operating personnel on i, stringing tower pulls down the old strain insulator folder on the stringing tower, and is connected on leading coaster; Leading coaster is connected with an end of pull rope in step a instrument, and the other end of pull rope is held in Ground Operation personnel's hand; Operating personnel on the unwrapping wire tower pulls down the old strain insulator folder on the unwrapping wire tower;
J, reclaim old overhead ground wire, the Ground Operation personnel pull the second pull rope, the operating personnel on the unwrapping wire tower will overturn coaster, insulating cord, leading coaster, pull rope withdrawal one by one; The Ground Operation personnel are pulled to ground by old overhead ground wire and regain;
Operating personnel on k, unwrapping wire tower and the operating personnel on the stringing tower connect wire jumper lead-in wire, the stockbridge damper on new overhead ground wire, and remove whole instruments of regaining, and change end-of-job.
In order to guarantee in anti-line process, distance and movement velocity between leading coaster and each upset coaster are consistent, and in step c of the present invention, insulating cord is equal in length.
In order to be applicable to the requirement of different terrain, expand its range of application and recycling rate of waterused, the leading coaster in step c of the present invention is provided with balancing weight.
Control the payingoff speed of new overhead ground wire in described step e, its velocity interval is the 0.5-2.0 meter per second.
The first wire grip described in the present invention, the second wire grip are in prior art and are applied to change the wire grip in the overhead ground wire operation, and its concrete structure and concrete operating process the present invention are not described in detail.
Fixed block described in step b of the present invention is to be applied to change the fixed block in the overhead ground wire operation in prior art, and its concrete structure and concrete operating process the present invention are not described in detail.
Below for an embodiment, method of the present invention is described in detail:
Operation is implemented place on 756 lines of mill, 110 kilovolts of rivers, Nanjing, and the bar section of changing overhead ground wire is the #3-#4 bar, and two base shaft towers are strain rod tower, and span is about 200 meters, and present position is substantially contour.Therefore the circuit between shaft tower forms isolated shelves.Concrete exchonge step is as follows:
A, operating personnel carry and transmit rope and step on respectively the overhead ground wire support place that need change unwrapping wire tower and the stringing tower of overhead ground wire to #3 and #4 tower, install and transmit rope, by the transmissions required instrument of transmission of restricting; Lay down near the old overhead ground wire stockbridge damper of two shaft towers, take the wire jumper lead-in wire of old overhead ground wire on two shaft towers apart;
B, using the #3 tower as the unwrapping wire tower, the #4 tower is as the stringing tower.At the #3 tower, the operating personnel coordinates with the Ground Operation personnel, guides new overhead ground wire termination orientation into overhead ground wire support on the unwrapping wire tower; Wherein, described new overhead ground wire is guided the overhead ground wire support on the unwrapping wire tower into through after being arranged on the fixed block on unwrapping wire tower tower bar, and to guarantee in whole process, the safe distance between new overhead ground wire and live wire meets the requirement of 1.1 meters;
Operating personnel on c, #3 tower hangs over the leading coaster in step a instrument and 10 s' upset coaster on old overhead ground wire, and the upset coaster keeps tightening up the state of gathering, and new overhead ground wire is fixed on leading coaster after through the upset coaster; While is the insulating cord in equal Connection Step a instrument between leading coaster and upset coaster and between every adjacent two upset coasters; Pull rope one end in step a instrument is fixed on leading coaster, and the other end is held in Ground Operation personnel's hand;
Operating personnel on d, #4 tower is arranged on the first wire grip in step a instrument on old overhead ground wire, and operate the first wire grip, make the first wire grip stressed, its objective is and make old overhead ground wire slightly tighten up, in order to make in subsequent step, newly, the safe distance of old overhead ground wire and live wire increases, and facilitates the in place of new overhead ground wire simultaneously;
E, setting-out work start, and Ground Operation personnel pulling traction rope pulls to new overhead ground wire at the overhead ground wire support place of #4 tower; In distraction procedure, the 20 meters left and right of often advancing, discharge a upset coaster at #3 tower place, to guarantee smooth and easy and assurance and the lower Square wire safe distance of traction; Because shaft tower is substantially contour, so hauling speed is controlled at 2.0 meter per seconds;
F, new overhead ground wire arrive the overhead ground wire support place of #4 tower, and the operating personnel on the #4 tower tightens up the first wire grip, make the old strain insulator folder on the old overhead ground wire of stringing tower end lax; The first new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the stringing tower, and the other end clamps the termination of new overhead ground wire;
Operating personnel on g, #3 tower takes off leading coaster, adopts the second wire grip in step a instrument, tightens up new overhead ground wire, makes the degree of speeding of new overhead ground wire be less than the degree of speeding of old overhead ground wire; Now all rollovers coaster overturns 180 ° under the effect of old overhead ground wire self gravitation, and new overhead ground wire is positioned at the top of old overhead ground wire;
H, the second new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the #3 tower, the other end clamps and is positioned at new overhead ground wire on the unwrapping wire tower, and the operating personnel on the #3 tower cuts off unnecessary new overhead ground wire;
Operating personnel on i, #4 tower pulls down the old strain insulator folder on the stringing tower, and is connected on leading coaster; The pull rope of instrument described in step a one end also is connected on leading coaster, and the other end is in Ground Operation personnel hand; The #3 tower operating personnel pull down the wire clamp of old overhead ground wire, and the fixed block that advanced the tower body installing along original path is sent to ground;
J, reclaim old overhead ground wire, Ground Operation personnel pulling traction rope, the operating personnel on the #3 tower will overturn coaster, insulating cord, leading coaster, pull rope withdrawal one by one; The Ground Operation personnel are pulled to ground by old overhead ground wire and regain; In removal process, also keep the hauling speed of 2.0 meter per seconds;
Operating personnel on k, #3 tower and the operating personnel on the #4 tower connect wire jumper lead-in wire, the stockbridge damper on new overhead ground wire, and remove whole instruments of regaining, and change end-of-job.
Part that the present invention does not relate to all same as the prior art or employing prior art is realized.
Claims (7)
1. the method for a charged for replacement overhead ground wire, is characterized in that, comprises the steps:
A, operating personnel carry the transmission rope and step on respectively to the unwrapping wire tower of need replacing overhead ground wire and the overhead ground wire support place of stringing tower, install and transmit rope, lay down old overhead ground wire stockbridge damper, take the wire jumper lead-in wire of old overhead ground wire apart, by transmission, restrict and transmit required instrument;
Operating personnel on b, unwrapping wire tower coordinates with the Ground Operation personnel, guides new overhead ground wire termination orientation into overhead ground wire support on the unwrapping wire tower; Wherein, described new overhead ground wire is guided the overhead ground wire support on the unwrapping wire tower into through after being arranged on the fixed block on unwrapping wire tower tower bar;
Operating personnel on c, unwrapping wire tower hangs over the leading coaster in step a instrument and the upset coaster of at least one on old overhead ground wire, and new overhead ground wire is fixed on leading coaster after passing the upset coaster; While is the insulating cord in equal Connection Step a instrument between leading coaster and upset coaster and between every adjacent two upset coasters; Pull rope one end in step a instrument is fixed on leading coaster, and the other end is held in Ground Operation personnel's hand; Now Ground Operation personnel pulling traction rope drives the overhead ground wire support place slip of leading coaster to the stringing tower;
Operating personnel on d, stringing tower is arranged on the first wire grip in step a instrument on old overhead ground wire, and operates the first wire grip, makes the first wire grip stressed;
E, setting-out work start, and Ground Operation personnel pulling traction rope pulls to new overhead ground wire at the overhead ground wire support place of stringing tower;
F, new overhead ground wire arrive the overhead ground wire support place of stringing tower, and the operating personnel on the stringing tower tightens up the first wire grip, make the old strain insulator folder on the old overhead ground wire of stringing tower end lax; The first new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the stringing tower, and the other end clamps the termination of new overhead ground wire;
Operating personnel on g, unwrapping wire tower adopts the second wire grip in step a instrument, tightens up new overhead ground wire, makes the degree of speeding of new overhead ground wire be less than the degree of speeding of old overhead ground wire; Now all rollovers coaster overturns 180 ° under the effect of old overhead ground wire self gravitation, and new overhead ground wire is positioned at the top of old overhead ground wire;
H, the second new strain insulator in step a instrument is pressed from both sides to the overhead ground wire support place that an end hangs over the unwrapping wire tower, the other end clamps and is positioned at new overhead ground wire on the unwrapping wire tower, and the operating personnel on the unwrapping wire tower cuts off unnecessary new overhead ground wire;
Operating personnel on i, stringing tower pulls down the old strain insulator folder on the stringing tower, and is connected on leading coaster; Leading coaster is connected with an end of pull rope in step a instrument, and the other end of pull rope is held in Ground Operation personnel's hand; Operating personnel on the unwrapping wire tower pulls down the old strain insulator folder on the unwrapping wire tower;
J, reclaim old overhead ground wire, Ground Operation personnel pulling traction rope, the operating personnel on the unwrapping wire tower will overturn coaster, insulating cord, leading coaster, pull rope withdrawal one by one, the Ground Operation personnel are pulled to ground by old overhead ground wire and regain;
Operating personnel on k, unwrapping wire tower and the operating personnel on the stringing tower connect wire jumper lead-in wire, the stockbridge damper on new overhead ground wire, and remove whole instruments of regaining, and change end-of-job.
2. the method for charged for replacement overhead ground wire as claimed in claim 1, is characterized in that, in described step c, insulating cord is equal in length.
3. the method for charged for replacement overhead ground wire as claimed in claim 1, is characterized in that, the leading coaster in described step c is provided with balancing weight.
4. the method for charged for replacement overhead ground wire as claimed in claim 1, is characterized in that, controls the payingoff speed of new overhead ground wire in described step e, and its velocity interval is the 0.5-2.0 meter per second.
5. the method for charged for replacement overhead ground wire as claimed in claim 1, it is characterized in that, described leading coaster comprises pulley (1), " U " type fixed head (2), anti-drop hook (3), clamping plate (7) and base plate (6), described pulley (1) is arranged in " U " type fixed head (2), be provided with folding side plate (4) by forwarding on a side plate of " U " type fixed head (2), clamping plate (7) are connected with " U " type fixed head (2), and base plate (6) adopts detachable connected mode to be connected with clamping plate (7); A side of described clamping plate (7) is provided with anti-drop hook fixed teeth (8), and aforesaid folding side plate (4) contacts with clamping plate (7) through anti-drop hook fixed teeth (8); The stiff end of described anti-drop hook (3) is arranged on " U " type fixed head (2) above and is positioned at the top of folding side plate (4), and the movable end of anti-drop hook (3) is arranged on anti-drop hook fixed teeth (8); Described base plate (6) plane corresponding with clamping plate (7) is provided with the groove for fixing new overhead wire.
6. the method for charged for replacement overhead ground wire as claimed in claim 5, is characterized in that, the center of described base plate (6) is provided with for the connecting hole of counterweight is installed.
7. the method for charged for replacement overhead ground wire as claimed in claim 1, is characterized in that, described upset coaster comprises upper strata side plate (9), lower floor's side plate (16), two pulley sheaves (10,10 ＇) and two hooks (11,11 ＇); Between described upper strata side plate (9) and lower floor's side plate (16), by cushion block (13), be connected, upper strata side plate (9) is with lower floor's side plate (16) all about the central shaft symmetry of cushion block (13), and described two pulley sheaves (10,10 ＇) are fixed between upper strata side plate (9), lower floor's side plate (16) and are positioned at the both sides of cushion block (13); All leave space (14,14 ＇) between described two pulley sheaves (10,10 ＇) and cushion block (13), described upper strata side plate (9) be provided with two grooves (15,15 ＇) and groove (15) corresponding with space (14), groove (15 ＇) is corresponding with space (14 ＇); Forward on described upper strata side plate (9) and be provided with two opening-closing plates (12,12 ＇), opening-closing plate (12) is positioned at the top of groove (15), and opening-closing plate (12 ＇) is positioned at the top of groove (15 ＇); Two hooks (11,11 ＇) are separately positioned on the top of two opening-closing plates (12,12 ＇) for preventing the automatic disengagement of two opening-closing plates (12,12 ＇).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445400.9A CN103500964A (en) | 2013-09-26 | 2013-09-26 | Method of live-wire replacement of overhead ground wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445400.9A CN103500964A (en) | 2013-09-26 | 2013-09-26 | Method of live-wire replacement of overhead ground wire |
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| CN103500964A true CN103500964A (en) | 2014-01-08 |
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| CN201310445400.9A Pending CN103500964A (en) | 2013-09-26 | 2013-09-26 | Method of live-wire replacement of overhead ground wire |
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| CN110783851A (en) * | 2019-11-08 | 2020-02-11 | 国网青海省电力公司海西供电公司 | Power transmission line outlet device |
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| CN113937658A (en) * | 2021-10-19 | 2022-01-14 | 中国南方电网有限责任公司超高压输电公司百色局 | Special guide rail for overhead ground wire |
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| CN104410005B (en) * | 2014-10-24 | 2017-08-04 | 国家电网公司 | A kind of replacing aerial condutor, the operational method of ground wire |
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| CN110504641B (en) * | 2019-09-17 | 2024-06-11 | 国网辽宁省电力有限公司辽阳供电公司 | Insulation protection device and protection method for live replacement of independent-gear overhead ground wire |
| CN110783851B (en) * | 2019-11-08 | 2022-03-25 | 国网青海省电力公司海西供电公司 | Power transmission line outlet device |
| CN110783851A (en) * | 2019-11-08 | 2020-02-11 | 国网青海省电力公司海西供电公司 | Power transmission line outlet device |
| CN112834537A (en) * | 2021-01-29 | 2021-05-25 | 四川赛康智能科技股份有限公司 | X-ray live detection method based on ground potential power transmission line |
| CN112834537B (en) * | 2021-01-29 | 2024-03-22 | 四川赛康智能科技股份有限公司 | X-ray live detection method based on ground potential power transmission line |
| CN113937658A (en) * | 2021-10-19 | 2022-01-14 | 中国南方电网有限责任公司超高压输电公司百色局 | Special guide rail for overhead ground wire |
| CN115036838A (en) * | 2022-06-02 | 2022-09-09 | 常州晋陵电力实业有限公司 | Overhead line disconnecting and replacing method based on line disconnecting and replacing robot |
| CN115986627A (en) * | 2023-03-20 | 2023-04-18 | 国网山东省电力公司潍坊供电公司 | Tool for replacing overhead ground wire in electrified mode and using method thereof |
| CN115986627B (en) * | 2023-03-20 | 2023-06-27 | 国网山东省电力公司潍坊供电公司 | Tool for live replacement of overhead ground wire and use method thereof |
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Application publication date: 20140108 |