CN102882153B - Phase replacing insulator string method in charged for replacement circuit many times towers - Google Patents

Phase replacing insulator string method in charged for replacement circuit many times towers Download PDF

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Publication number
CN102882153B
CN102882153B CN201210316624.5A CN201210316624A CN102882153B CN 102882153 B CN102882153 B CN 102882153B CN 201210316624 A CN201210316624 A CN 201210316624A CN 102882153 B CN102882153 B CN 102882153B
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China
Prior art keywords
jig
insulator
pulley
arm
towers
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CN201210316624.5A
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CN102882153A (en
Inventor
吴志成
陈永红
姚青煌
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State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Abstract

The invention discloses phase replacing insulator string method in a kind of charged for replacement circuit many times towers, method of the present invention, pulley jig is utilized to carry out replacing insulator string, achieve indirect operation to install, it transfers to ground stringing operation from tower, greatly reduce gap operating workload, improve operating efficiency, reduce labour intensity.

Description

Phase replacing insulator string method in charged for replacement circuit many times towers
Technical field
The present invention relates to phase replacing insulator string in a kind of double back tower, particularly phase replacing insulator string method in a kind of charged for replacement circuit many times towers.
Background technology
Because line corridor requisition is more and more difficult, power transmission sequence adopts double loop or multi-circuits transmission lines on single tower shaft tower in a large number, as 110KV circuit double loop tangent tower wire adopts vertical arrangement, middle phase cross-arm is generally 3.5 meters with upper phase cross-arm, after deducting insulator string length and middle phase cross-arm height, middle phase cross-arm and upper conductor distance only have about 1.2 meters, if phase insulator in Live line maintenance method replacing routinely, personnel need enter the operation of middle phase cross arm end, the gap of 1.2 meters cannot meet safety requirements, can only power failure operation, this just makes amount of power supply be subjected to a large amount of losses, reduce power supply reliability simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and provide a kind of and be applicable to phase replacing insulator string method in charged for replacement circuit many times towers of phase insulator in earth potential live replacing circuit double back tower or many times towers.
Phase replacing insulator string method in a kind of charged for replacement circuit many times towers, its concrete steps are as follows: (1) is first by pulley jig and insulating cord composition assembly pulley, described pulley jig specifically includes the running block of jig and two, described jig is wing-shaped structure, the open seam of the snapped in cross-arm of linking up jig front-back is provided with in the middle part of wing-shaped structure, and along wing-shaped structure two flank directions extend the square groove vertical with open seam, the notch of this square groove is positioned at jig lower surface, fixed pulley group is respectively arranged with in the lower surface of jig two flank, each fixed pulley group has more than one fixed pulley, the upper end of jig is provided with the hangers for jig of slinging, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank matches, the bottom of each running block is provided with the hook for wire of slinging,
On (2) one towers, operating personnel steps on the supreme cross arm end of tower, hangs up properly purchase fall at upper cross-arm place, and Ground Operation personnel thus purchase fall start to hang and rise assembly pulley;
(3) on another tower, operating personnel steps on tower to middle cross-arm root action bars and pulley jig is installed on middle cross-arm end insulation substring suspension point place, aperture slots in the middle of jig and square groove are closely fixed on cross-arm, and the hook of two running blocks is linked into wire;
(4) Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make insulator load transfer on assembly pulley;
(5) take off side of wire spring catch with action bars, throw off insulator;
(6) load onto good insulator by reverse procedure, lay down operation Work tool, personnel withdraw.
Above method is mainly applicable to change synthetic insulator, in order to the replacing porcelain bottle insulators that can arrange, the present invention also increases following steps between step 5 with 6: by two operating personnels to middle phase cross-arm root, cooperation action bars fixes the self-control suspension centre be loaded on purchase fall due to synthetic insulator upper end, or the first of porcelain bottle insulators, insulator position is adjusted with insulator adjuster, take off cross-arm side spring catch, utilize insulator suspension centre card balanced hoisting insulator string, throw off the bulb of connecting insulator, insulator is put to ground.
Running block is provided with the hangers for hanging starter pulley group.
Jig between two fixed pulley groups of jig is also provided with the fixed pulley of two, two fixed pulleys are divided on the flank of open seam both sides.
Between two fixed pulley groups of jig, set up a fixed pulley, at the replacing porcelain insulator period of the day from 11 p.m. to 1 a.m, because porcelain bottle insulators weight is very heavy, therefore with rope, porcelain vase can be sling by this fixed pulley, play the effect of weight reduction.
Described suspension centre card is the hood type structure be made up of two arc-like sheets, two arc-like sheets is provided with the convenient hanger upwards sling by this suspension centre card, suspension centre card is also provided with the operation ring of convenience insulating bar operation.
In use, with insulating bar, suspension centre card is stuck in the first of insulator upper end or porcelain bottle insulators, then by the hanger on suspension centre card, suspension centre is fastened with insulating cord.
In sum, the present invention's following advantage compared to existing technology:
(1) phase replacing insulator string method in charged for replacement circuit of the present invention many times towers, achieve indirect operation to install, it transfers to ground stringing operation from tower, greatly reduces gap operating workload, improve operating efficiency, reduce labour intensity;
(2) conveniently operational method, bearing tool hanging point and insulator string hanging point all need about the 400mm that staggers, indirect removable insulator string is very difficult, labour intensity is very big, the method is coordinated by suspension centre card and pulley jig, achieve location dress, de-insulator, fast simple to operate, and be applicable to the indirect loading and unloading of synthetic insulator and porcelain vase (glass) insulator simultaneously;
(3) adopt two cover bearing tool operations when using, when wherein arbitrary cover tool failures, another set of instrument still can normally work, and improves greatly job safety coefficient;
(4) operational method of this project research, Work tool light and flexible, simple to operate;
Accompanying drawing explanation
Fig. 1 is the structural representation of the jig of embodiments of the invention 1.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the schematic diagram that pulley jig and insulating cord form assembly pulley.
Fig. 4 is the schematic diagram of pulley jig in using state of the embodiment of the present invention 1.
Fig. 5 is the sustained center chucking tool structural representation of the embodiment of the present invention 2.
Fig. 6 is the vertical view of Fig. 5.
Label declaration 1 pulley jig 11 jig 111 jig snaps in operation ring 4 cross-arm on the hangers 2 insulating cord 3 suspension centre card 31 hanger 32 suspension centre card of the hangers 13 fixed pulley group 14 jig upper end of hook 122 running block of square groove 12 running block 121 running block bottom perpendicular with open seam on open seam 112 jig of cross-arm.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
Phase replacing insulator string method in a kind of charged for replacement circuit many times towers, its concrete steps are as follows: first pulley jig 1 and insulating cord 2 are formed assembly pulley as Figure 1-4 by (1), described pulley jig specifically includes the running block 12 of jig 11 and two, described jig is wing-shaped structure, the open seam 111 of the snapped in cross-arm 4 of linking up jig front-back is provided with in the middle part of wing-shaped structure, and along wing-shaped structure two flank directions extend the square groove 112 vertical with open seam, the notch of this square groove is positioned at jig lower surface, fixed pulley group 13 is respectively arranged with in the lower surface of jig two flank, each fixed pulley group has more than one fixed pulley, the hangers 14 for jig of slinging is provided with in the upper end of jig, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank matches, the hook 121 for wire of slinging is provided with in the bottom of each running block, running block is provided with the hangers 122 for hanging starter pulley group,
On (2) one towers, operating personnel steps on the supreme cross arm end of tower, hangs up properly purchase fall at upper cross-arm place, and Ground Operation personnel thus purchase fall start to hang and rise assembly pulley;
(3) on another tower, operating personnel steps on tower to middle cross-arm root action bars and pulley jig is installed on middle cross-arm end insulation substring suspension point place, aperture slots in the middle of jig and square groove are closely fixed on cross-arm, and the hook of two running blocks is linked into wire;
(4) Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make insulator load transfer on assembly pulley;
(5) take off side of wire spring catch with action bars, throw off insulator;
(6) load onto good insulator by reverse procedure, lay down operation Work tool, personnel withdraw.
It is same as the prior art that the present embodiment does not state part.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, just after the step 5 of embodiment 1, increase following step, by two operating personnels to middle phase cross-arm root, cooperation action bars fixes the self-control suspension centre be loaded on purchase fall due to synthetic insulator upper end, or the first of porcelain bottle insulators, hanger on suspension centre card hangs on two fixed pulleys between two fixed pulley groups on pulley jig, insulator position is adjusted with insulator adjuster, take off cross-arm side spring catch, utilize insulator suspension centre card as Fig. 5, 6 balanced hoisting insulator strings, throw off the bulb of connecting insulator, insulator is put to ground, described suspension centre card 3 is the hood type structure be made up of two arc-like sheets, two arc-like sheets is provided with the convenient hanger 31 upwards sling by this suspension centre card, suspension centre card is also provided with the operation ring 32 of convenience insulating bar operation.Between two fixed pulley groups of jig, be also provided with the fixed pulley of two, two fixed pulleys are divided on the flank of open seam both sides.The hanger of suspension centre Cali on it hangs on the fixed pulley of two.
It is identical with embodiment 1 that the present embodiment does not state part.

Claims (2)

1. phase replacing insulator string method in a charged for replacement circuit many times towers, it is characterized in that: concrete steps are as follows: (1) is first by pulley jig and insulating cord composition assembly pulley, described pulley jig specifically includes the running block of jig and two, described jig is wing-shaped structure, the open seam of the snapped in cross-arm of linking up jig front-back is provided with in the middle part of wing-shaped structure, and along wing-shaped structure two flank directions extend the square groove vertical with open seam, the notch of this square groove is positioned at jig lower surface, fixed pulley group is respectively arranged with in the lower surface of jig two flank, each fixed pulley group has more than one fixed pulley, the upper end of jig is provided with the hangers for jig of slinging, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank matches, the bottom of each running block is provided with the hook for wire of slinging,
On (2) one towers, operating personnel steps on the supreme cross arm end of tower, hangs up properly purchase fall at upper cross-arm place, and Ground Operation personnel thus purchase fall start to hang and rise assembly pulley;
(3) on another tower, operating personnel steps on tower to middle cross-arm root action bars and pulley jig is installed on middle cross-arm end insulation substring suspension point place, the aperture slots in the middle of jig and square groove is closely fixed on cross-arm, and the hook of two running blocks is linked into wire;
(4) Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make insulator load transfer on assembly pulley;
(5) take off side of wire spring catch with action bars, throw off insulator;
Two operating personnels are to middle phase cross-arm root place, cooperation action bars fixes the self-control suspension centre be loaded on purchase fall due to synthetic insulator upper end, or the first of porcelain bottle insulators, insulator position is adjusted with insulator adjuster, take off cross-arm side spring catch, utilize insulator suspension centre card balanced hoisting insulator string, throw off the bulb of connecting insulator, insulator is put to ground, running block is provided with the hangers for hanging starter pulley group, jig between two fixed pulley groups of jig is also provided with the fixed pulley of two, two fixed pulleys are divided on the flank of open seam both sides,
(6) load onto good insulator by reverse procedure, lay down operation Work tool, personnel withdraw.
2. phase replacing insulator string method in charged for replacement circuit according to claim 1 many times towers, it is characterized in that: described suspension centre card is the hood type structure be made up of two arc-like sheets, two arc-like sheets are provided with the convenient hanger upwards sling by this suspension centre card, suspension centre card is also provided with the operation ring of convenience insulating bar operation.
CN201210316624.5A 2012-08-30 2012-08-30 Phase replacing insulator string method in charged for replacement circuit many times towers Active CN102882153B (en)

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CN102882153B true CN102882153B (en) 2015-09-30

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872621B (en) * 2014-03-10 2016-08-24 国家电网公司 A kind of earth potential method charged changing tension-resisting insulator fixture and operational method
CN103928867A (en) * 2014-04-24 2014-07-16 国家电网公司 Double-hoisting-point pole head clamp for replacing straight-line insulator of 220 kV line steel pipe pole in electrified mode
CN104201629B (en) * 2014-09-24 2017-08-01 国家电网公司 A kind of insulator chain hanging point attachment structure
CN105514862B (en) * 2015-12-04 2017-03-29 国家电网公司 Multiple-loop line transmission line of electricity jumper suspension insulator chain charged for replacement method and device
CN107069562B (en) * 2017-06-28 2019-03-08 云南电网有限责任公司曲靖供电局 Replacing insulator under electrified method and load transfer device
CN107086495B (en) * 2017-06-28 2019-05-31 云南电网有限责任公司曲靖供电局 Load transfer tool and electric power maintenance equipment

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN201466574U (en) * 2009-06-11 2010-05-12 华北电力科学研究院有限责任公司 Device for isoelectrically replacing insulator and accessory of iron tower of transmission line
CN201518397U (en) * 2009-06-16 2010-06-30 福建省福州电业局 Tool for replacing line suspension insulation string in 220 KV circuit with charged line
CN102163824A (en) * 2011-02-14 2011-08-24 福建省电力有限公司厦门电业局 Operating tool and operation method for electrically replacing T-type mounting point suspending insulator in 110kV line steel pipe rod

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201466574U (en) * 2009-06-11 2010-05-12 华北电力科学研究院有限责任公司 Device for isoelectrically replacing insulator and accessory of iron tower of transmission line
CN201518397U (en) * 2009-06-16 2010-06-30 福建省福州电业局 Tool for replacing line suspension insulation string in 220 KV circuit with charged line
CN102163824A (en) * 2011-02-14 2011-08-24 福建省电力有限公司厦门电业局 Operating tool and operation method for electrically replacing T-type mounting point suspending insulator in 110kV line steel pipe rod

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110kV双回线路直线塔中相绝缘子的带电更换;吴志成;《供用电》;20090228;第26卷(第1期);第62-64页 *

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