CN114744548B - Insulating shielding cover for live replacement of tension insulator of power distribution cement pole vertical arrangement line and installation method of insulating shielding cover - Google Patents
Insulating shielding cover for live replacement of tension insulator of power distribution cement pole vertical arrangement line and installation method of insulating shielding cover Download PDFInfo
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- CN114744548B CN114744548B CN202210522490.6A CN202210522490A CN114744548B CN 114744548 B CN114744548 B CN 114744548B CN 202210522490 A CN202210522490 A CN 202210522490A CN 114744548 B CN114744548 B CN 114744548B
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- cross arm
- insulating
- cover
- soft board
- wire
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- 239000012212 insulator Substances 0.000 title claims abstract description 22
- 239000004568 cement Substances 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 8
- 238000005192 partition Methods 0.000 claims description 39
- 238000002955 isolation Methods 0.000 claims description 13
- 230000016507 interphase Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 239000012211 strain insulator Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 16
- 230000007547 defect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention relates to an insulating shielding cover for live replacement of a tension insulator of a wire line vertically arranged on a power distribution cement pole, and belongs to the technical field of live overhaul sites. Including the hard insulating board, the hard insulating board includes shaft baffle and alternate baffle, wire passageway has been seted up along shaft baffle horizontal length direction, wire passageway intermediate position department is equipped with the horizontal cross arm that extends forward and separates the cover, cross arm separates the cover upper and lower both sides and is fixed in on the shaft baffle, cross arm separates the cover top and is equipped with two rope holes, cross arm separates the cover left and right sides and is equipped with right angle link plate passageway, wire passageway that is located the cross arm and separates the cover left and right both sides do not is equipped with left soft board, right soft board, shaft baffle back left and right sides is equipped with the fixed buckle of vertical setting respectively, fixed buckle top articulates on the shaft baffle of wire passageway top, the bottom clamps mutually with the pin of installing in the shaft baffle back. The invention is safe and reliable, flexible in adjustment, stable in installation, capable of improving live working efficiency and ensuring live working safety.
Description
Technical Field
The invention relates to an insulating shielding cover for replacing a tension insulator of a wire line with a vertical arrangement of a power distribution cement pole in an electrified manner, which is applied to the work of replacing the tension insulator of an overhead power distribution line with a vertical arrangement of wires with a double-cross-arm line, and belongs to the technical field of electrified overhaul sites.
Background
The distribution network is an important component of the power system, and is composed of distribution lines and distribution substations, and the distribution network is used for distributing electric energy to electric appliances (motors, electric lamps, electric heating furnaces and the like) in factories, mines, cities and rural areas. In order to reduce the occupied area of the distribution line tower, a cement pole is generally adopted to erect a plurality of circuits, and three wires of the same circuit are in a vertical arrangement state. As the line runs for a long time, equipment elements such as tension insulators, hardware fittings and the like are aged or damaged, and are replaced usually in a live working mode. Currently, no shielding tool for replacing tension insulators of 10kV distribution cement poles in a vertical arrangement mode is electrified in the state. When the operations of live replacement of the tension insulator, the hardware fitting and the like are carried out, the method comprises the following steps: the operation personnel operate the insulating arm car to the operation position, need to use insulating blanket to carry out insulating shielding to operation looks wire, insulator, gold utensil, cross arm, shaft, just can change work.
There are two risk factors in the masking process: 1. the distance between the vertically arranged wires is small, so that when an operator works on the operation phase wires, the action amplitude is overlarge, and the electrified body easily passes through a human body to generate an interphase short-circuit accident. 2. When operators shield insulators and hardware fittings in an insulating way, the insulating parts of the insulators are easy to be short-circuited by human bodies, so that the insulating parts are not enough in distance, and a ground discharge accident of the wires occurs. Meanwhile, the shape of the joint of the hardware fitting and the cross arm is irregular, so that the defects of great time consumption, infirm and tight shielding, high physical consumption of operators and the like exist after the insulating blanket is shielded. Moreover, because the shielding of the ground potential object is not firm and tight, the danger of discharging to the ground is easy to happen when operators move the electrified body, and even the casualties are directly caused. In order to change the similar situation, development of an insulating shielding cover for live replacement of tension insulator of a wire line vertically arranged on a power distribution cement pole is urgently needed, so that the range and efficiency of power distribution live working are improved, the installation quality of equipment is ensured, and the safety of live working is ensured.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the insulating shielding cover for live replacement of the tension insulator of the vertical arrangement wire line of the power distribution cement pole and the replacement method thereof, which have the advantages of simple structure, safety, reliability, flexible adjustment, stable installation, improvement of live working efficiency and guarantee of live working safety.
The utility model provides a be used for distribution cement pole vertical arrangement circuit to change strain insulator insulation shielding cover, the characteristic lies in including the hard insulation board, the hard insulation board includes pole body baffle and perpendicular to alternate baffle of alternate pole body baffle upper and lower both sides, rectangular hollow structure's wire passageway has been seted up along pole body baffle horizontal length direction, wire passageway intermediate position department is equipped with the cross arm shield that extends forward horizontally, cross arm shield and alternate baffle are parallel state, cross arm shield upper and lower both sides are fixed in pole body baffle, cross arm shield top is equipped with two rope holes that bilateral symmetry set up, cross arm shield left and right sides are equipped with the right angle link plate passageway that is used for through right angle link plate, wire passageway that is located cross arm shield left and right both sides are equipped with respectively can upper and lower upset left soft board, right soft board, left soft board, right soft board top all articulates on the pole body baffle that is located wire passageway top, the fixed buckle that the left and right sides of pole back is equipped with vertical setting respectively, fixed longitudinal span whole rectangular hollow structure, fixed buckle top articulates on pole body top and bottom and installs in pole body baffle that the back is installed to the back of pole looks baffle;
preferably, the left soft board and the right soft board are made of soft insulating rubber;
preferably, the shaft partition plate and the phase partition plate are of an integrated structure;
preferably, the pole body partition board is rectangular, the total height of the pole body partition board and the inter-phase partition board is 0.6 m, the length of the pole body partition board is 1.6 m, the height of the wire channel is 0.2 m, the length of the cross arm partition cover extending forwards horizontally is 0.3 m, the length of the cross arm partition cover 5 is 0.4 m, the height of the cross arm partition cover is 0.2 m, the heights of the left soft board and the right soft board are 0.3 m, and the width of the inter-phase partition board is 0.4 m.
The mounting method for the insulating shielding cover for the live replacement of the tension insulator of the vertical arrangement line of the power distribution cement pole comprises the following steps:
1. an operator enters the end part of the cross arm of the electric pole through an insulating bearing tool;
2. opening fixing buckles at two ends of the hard insulating plate, sleeving the cross arm separating cover from the end part of the cross arm, and covering the cross arm separating cover outside the end part of the cross arm;
3. when the right-angle hanging plate passes through the right-angle hanging plate channel, the travel is not blocked, so that tension-resisting equipment, a wire and a cross arm smoothly pass through the wire channel, after entering an insulating isolation area, the left flexible plate and the right flexible plate naturally droop, the upper end of the left flexible plate is hinged to a fixed buckle of an insulating pin at the top end of the left flexible plate to rotate, and the lower end of the right flexible plate is buckled with the insulating pin at the bottom end of the right flexible plate in a buckling fit manner, so that the installation work of the invention is completed;
4. the operator passes rope hole with insulating turn-buckle haulage rope, wire backup rope and locks, uses insulating blanket to shield rope hole and right angle link insulation this moment, can accomplish whole operation region insulation, and the operator only need work in insulation region can, and the inter-phase baffle accomplishes the insulation of operation phase and adjacent looks wire this moment, and the pole body baffle accomplishes the insulation of operation phase and pole body grounding body.
5. After the work is finished, the work is removed in the same sequence.
Compared with the prior art, the invention has the following positive effects:
the invention completes the live replacement of the insulating shielding cover of the tension insulator in power distribution, can effectively overcome the defects of the prior art, realizes the live replacement of the components of the tension-resistant tower equipment of the cement pole multi-circuit vertical arrangement and the single-loop wire line, reduces the labor intensity of operators, improves the safety coefficient and the operation efficiency, and ensures the operation safety.
Compared with the prior art, the invention has the advantages that:
1. the integrated design is simple in structure. The phase separator plate is used for completing phase separation between the operation phase lead and the adjacent phase electrified equipment. The left soft board, the cross arm separation cover and the right soft board realize the insulation and isolation of the operation phase live equipment and the grounding body.
2. The installation is convenient. The operator opens the fixed buckles at the two ends and sleeves the cross arm separating cover from the end part of the cross arm. After the tension-resistant equipment, the lead and the cross arm smoothly enter the insulating isolation area, the left soft board and the right soft board naturally droop, and the fixing buckle is fastened, so that the installation work of the invention is completed.
3. After the installation of the invention is finished, the insulating blanket is used for insulating and shielding the rope holes and the right-angle hanging plate, thus the insulating isolation of the whole operation area can be completed, and operators only need to work in the insulating isolation area.
4. The special structure of the rope hole can realize the connection and installation of the insulating backup protection rope, the tightener and the cross arm.
After the invention is used, the problems of small safety coefficient and inconvenient operation caused by insulating shielding by using an insulating blanket are solved, the reliable and stable operation of equipment is ensured, and the power supply reliability is improved.
Drawings
FIG. 1 is a schematic diagram of a construction of an insulating shield for live replacement of tension insulator for a power distribution cement pole vertical arrangement line according to the present invention;
fig. 2 is a left side view of fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, an insulating shielding cover for live replacement of tension insulator for a vertical arrangement line of a power distribution cement pole in this embodiment is composed of a left soft board 2 and a right soft board 8 made of hard insulating board and soft insulating rubber, the hard insulating board 1 includes a phase-to-phase partition board 3, a pole body partition board 4 and a cross arm partition cover 5, the phase-to-phase partition board 3 is vertically installed on the pole body partition board 4, the cross arm partition cover 5 is vertically installed on the pole body partition board 4, and the phase-to-phase partition board 3 and the cross arm partition cover 5 are in parallel state. The cross arm partition plate 5 is provided with rope holes 6 with symmetrical positions, and the rope holes 6 are the joints of the traction ropes of the insulating tightener and the wire backup ropes and the cross arm. Right-angle hanging plate channels 7 are formed in the left side and the right side of the cross arm separating cover 5, and the right-angle hanging plate channels 7 are used for moving channels of the right-angle hanging plates when the cross arm separating cover is assembled and disassembled on a cross arm, so that the cross arm separating cover is convenient to install in place. The tops of the left soft board 2 and the right soft board 8 are hinged on the pole body partition board 4 above the wire channel 9, the lower ends of the left soft board 2 and the right soft board 8 are separated from the cross arm partition cover 5, when the right-angle hanging board passes through the right-angle hanging board channel 7, the right soft board 8 does not obstruct the travel, after the invention is installed in place, the right soft board 8 naturally sags and is matched with the cross arm partition cover 5, and the electrified body and the cross arm are kept in an insulating and isolating state. The back-mounted fixing buckle 10 is arranged on the rod body partition board 4, the upper end of the fixing buckle 10 is hinged to the top insulation pin 11, the fixing buckle can do circular motion around the top insulation pin 11, the lower end of the fixing buckle is in buckle fit with the bottom insulation pin 12, the upper half body and the lower half body of the rod body partition board 4 are connected, and the stress of the cross arm partition cover 5 is reduced.
The upper end of the left soft board 2 is connected with the rod body partition board 4, and the lower end is separated from the rod body partition board 4. When the tension-resistant equipment and the lead pass through the lead channel 9, the soft material can enable the tension-resistant equipment and the lead to pass through the lead channel 9 smoothly, and after the installation, the left soft board 2 restores the natural sagging state and is matched with the rod body partition board 4, so that the tension-resistant equipment and the lead are kept in an insulating and isolating state with the rod body.
Wherein the left soft board 2 and the right soft board 8 are made of soft insulating rubber. The pole body baffle 4 and the inter-phase baffle 3 are of an integrated structure, the pole body baffle 4 is rectangular, the total height of the pole body baffle 4 and the inter-phase baffle 3 is 0.6 m, the length of the pole body baffle 4 is 1.6 m, the height of the wire channel 9 is 0.2 m, the length of the cross arm baffle cover 5 extending horizontally forwards is 0.3 m, the length of the cross arm baffle cover 5 is 0.4 m, the height of the cross arm baffle cover 5 is 0.2 m, the heights of the left soft board 2 and the right soft board 8 are 0.3 m, and the width of the inter-phase baffle 3 is 0.4 m.
The mounting method for the insulating shielding cover for the live replacement of the tension insulator of the vertical arrangement line of the power distribution cement pole comprises the following steps:
1. an operator enters the end part of the cross arm of the electric pole through an insulating bearing tool;
2. opening the fixing buckles 10 at the two ends of the hard insulating plate 1, sleeving the cross arm separation cover 5 from the end part of the cross arm, and covering the cross arm separation cover 5 outside the end part of the cross arm;
3. when the left soft board 2 and the right soft board 8 are turned over and the right-angle hanging board passes through the right-angle hanging board channel 7, the travel is not blocked, so that tension-resisting equipment, wires and cross arms smoothly pass through the wire channel 9, after entering an insulating isolation area, the left soft board 2 and the right soft board 8 naturally droop, the fixed buckle 10 with the upper end hinged to the top insulating pin 11 rotates, and the lower end is buckled with the bottom insulating pin 12 in a buckling fit manner, so that the installation work of the invention is completed;
4. the operator passes rope hole 6 with insulating turn-buckle haulage rope, wire backup rope and locks, uses insulating blanket to insulate rope hole 6 and right angle link plate and shields this moment, can accomplish whole operation region insulation, and the operator only need work in insulation region. At this time, the inter-phase separator 3 completes insulation and isolation of the working phase and the adjacent phase wires, and the shaft separator 4 completes insulation and isolation of the working phase and the shaft grounding body.
5. After the work is finished, the work is removed in the same sequence.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a be used for distribution cement pole to arrange circuit live-line change strain insulator insulating shielding cover, a serial communication port, including the hard insulating board, the hard insulating board includes the pole body baffle and be fixed in the alternate baffle of alternate pole body baffle upper and lower both sides perpendicularly, rectangular hollow structure's wire passageway has been seted up along pole body baffle horizontal length direction, wire passageway intermediate position department is equipped with the cross arm that extends forward horizontally and separates the baffle and be parallel state, cross arm separates the cover and is fixed in pole body baffle upper and lower both sides, cross arm separates the cover top and is equipped with two rope holes that bilateral symmetry set up, cross arm separates the cover left and right sides and is equipped with the right angle link plate passageway that is used for through the right angle link plate, be located the wire passageway of cross arm and separate cover left and right both sides and be equipped with respectively can upper and lower upset left soft board, right soft board top all articulates on the pole body baffle that is located wire passageway top, the left and right soft board back left and right soft board left side is equipped with the fixed buckle that vertical setting respectively, fixed buckle is vertical whole rectangular hollow structure of striding, fixed buckle top articulates in pole body top and bottom on the wire passageway top and the back of the pole body baffle, install in the back phase of the back of the pin.
2. The insulating shielding cover for live replacement of tension insulators for a vertical arrangement line of power distribution cement poles according to claim 1, wherein the left soft board and the right soft board are made of soft insulating rubber.
3. An insulating shield for live replacement of tension insulator for a vertical alignment of power distribution cement poles according to claim 1, wherein said pole body separator is of unitary construction with said phase separator.
4. The insulating shield cover for live replacement of tension insulators for a vertical arrangement line of a power distribution cement pole according to claim 1, wherein the pole body partition plate is rectangular, the total height of the pole body partition plate and the inter-phase partition plate is 0.6 m, the length of the pole body partition plate is 1.6 m, the height of a wire passage is 0.2 m, the length of a horizontal forward extending cross arm partition cover is 0.3 m, the length of the cross arm partition cover is 0.4 m, the height of the cross arm partition cover is 0.2 m, the heights of the left soft board and the right soft board are 0.3 m, and the width of the inter-phase partition plate is 0.4 m.
5. A replacement method for live replacement of an insulating shield for a tension insulator for a vertically aligned line of power distribution cement poles according to any one of claims 1 to 4, comprising the steps of:
1) An operator enters the end part of the cross arm of the electric pole through an insulating bearing tool;
2) Opening fixing buckles at two ends of the hard insulating plate, sleeving the cross arm separating cover from the end part of the cross arm, and covering the cross arm separating cover 5 outside the end part of the cross arm;
3) When the right-angle hanging plate passes through the right-angle hanging plate channel, the travel is not blocked, so that tension-resisting equipment, a wire and a cross arm smoothly pass through the wire channel, after entering an insulating isolation area, the left flexible plate and the right flexible plate naturally droop, the upper end of the left flexible plate is hinged to a fixed buckle of an insulating pin at the top end of the left flexible plate to rotate, and the lower end of the right flexible plate is buckled with the insulating pin at the bottom end of the right flexible plate in a buckling fit manner, so that the installation work is completed;
4) An operator passes through the rope hole through the rope pulling rope of the insulating tightener and the wire backup rope and locks the rope hole, and at the moment, the rope hole and the right-angle hanging plate are insulated and shielded by using an insulating blanket, so that the insulating isolation of the whole operation area can be finished, the operator only needs to work in the insulating isolation area, at the moment, the interphase partition plate finishes the insulating isolation of the operation phase and the adjacent phase wires, and the rod body partition plate finishes the insulating isolation of the operation phase and the rod body grounding body;
5) After the work is finished, the work is removed in the same sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210522490.6A CN114744548B (en) | 2022-05-14 | 2022-05-14 | Insulating shielding cover for live replacement of tension insulator of power distribution cement pole vertical arrangement line and installation method of insulating shielding cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210522490.6A CN114744548B (en) | 2022-05-14 | 2022-05-14 | Insulating shielding cover for live replacement of tension insulator of power distribution cement pole vertical arrangement line and installation method of insulating shielding cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114744548A CN114744548A (en) | 2022-07-12 |
| CN114744548B true CN114744548B (en) | 2024-03-01 |
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| CN202210522490.6A Active CN114744548B (en) | 2022-05-14 | 2022-05-14 | Insulating shielding cover for live replacement of tension insulator of power distribution cement pole vertical arrangement line and installation method of insulating shielding cover |
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| CN (1) | CN114744548B (en) |
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| CN106611944A (en) * | 2017-02-22 | 2017-05-03 | 中国能源建设集团南京线路器材有限公司 | Falling type protective cover |
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| CN206516981U (en) * | 2017-03-02 | 2017-09-22 | 国网宁夏电力公司培训中心 | Combined cross arm insulated shielding cover |
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| CN210137138U (en) * | 2019-08-07 | 2020-03-10 | 国网湖南省电力有限公司 | Join in marriage net not power failure operation with insulating cover that shields of cross arm pole integral type |
| CN114284941A (en) * | 2022-02-09 | 2022-04-05 | 国网上海市电力公司 | Transition cross arm insulation shielding cover for lightning arrester |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8796546B2 (en) * | 2012-05-08 | 2014-08-05 | Eco Electrical Systems | High voltage cable and insulator shield with flexible arm connector |
| US9608424B2 (en) * | 2014-10-15 | 2017-03-28 | Marmon Utility, Llc | Wildlife protective cover having a conductor/insulator guard and system for power distribution and transmission systems and related methods |
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2022
- 2022-05-14 CN CN202210522490.6A patent/CN114744548B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655000A (en) * | 2017-01-06 | 2017-05-10 | 国网山东省电力公司烟台供电公司 | Integrated insulating protecting cover covering both cement rod body and single cross arm |
| CN106611944A (en) * | 2017-02-22 | 2017-05-03 | 中国能源建设集团南京线路器材有限公司 | Falling type protective cover |
| CN206516981U (en) * | 2017-03-02 | 2017-09-22 | 国网宁夏电力公司培训中心 | Combined cross arm insulated shielding cover |
| CN107681541A (en) * | 2017-09-25 | 2018-02-09 | 国网浙江省电力公司衢州供电公司 | A kind of universal insulated shielding cover |
| CN210137138U (en) * | 2019-08-07 | 2020-03-10 | 国网湖南省电力有限公司 | Join in marriage net not power failure operation with insulating cover that shields of cross arm pole integral type |
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| Publication number | Publication date |
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| CN114744548A (en) | 2022-07-12 |
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