CN111564787A - Distribution network uninterrupted operation insulation shielding tool and insulation shielding method - Google Patents
Distribution network uninterrupted operation insulation shielding tool and insulation shielding method Download PDFInfo
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- CN111564787A CN111564787A CN202010398857.9A CN202010398857A CN111564787A CN 111564787 A CN111564787 A CN 111564787A CN 202010398857 A CN202010398857 A CN 202010398857A CN 111564787 A CN111564787 A CN 111564787A
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- 238000009413 insulation Methods 0.000 title claims abstract description 25
- 230000000875 corresponding Effects 0.000 claims abstract description 15
- 239000000789 fastener Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 101700078171 KNTC1 Proteins 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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- 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
Abstract
An insulating shielding tool and an insulating shielding method for distribution network uninterrupted operation belong to the field of live operation. Comprises two groups of side phase insulation shielding tools and a group of middle phase insulation shielding tools which are fixed on a cross arm of a terminal rod; each group of side phase insulating shielding tools consists of side phase supporting rods, side phase telescopic rods and side phase lead supports; the middle phase insulation shielding tool consists of a middle phase support rod, a middle phase telescopic rod, a middle phase lead bayonet device, a middle phase steering rod and a middle phase lead support. A wire supporting platform extends out of a cross arm of the terminal rod, and the corresponding live wires are clamped and fixed in the corresponding wire bayonets by arranging the corresponding wire bayonets and wire spring bolts to form a stable fixed state. Can be effectively with the upper end lead wire of pulling down be fixed in on the insulating component, change the double operation of original for single independent operation, can guarantee effectively that the safe is remote between operation personnel and the electrified body, improved live working's work efficiency and security.
Description
Technical Field
The invention belongs to the technical field of live working, and particularly relates to an insulating shielding tool and an insulating shielding method for uninterrupted working.
Background
In a 10kV overhead distribution line in the Shanghai region, the number of drop-out fuse devices on the rod is large, the conventional drop-out fuses are all arranged on the same side of the overhead line, and when the drop-out fuses have faults of damage, heating and the like, the drop-out fuses need to be replaced.
When the conventional drop-out fuse is replaced, the drop-out fuse and the cross arm need to be insulated and shielded to prevent the occurrence of grounding or interphase short circuit, after a lead at the upper end of the drop-out fuse is untied, the lead is bound on a corresponding lead at the upper part, and after the three-phase drop-out fuse is separated from an upper live line, the fuse is replaced.
In the existing drop-out fuse device, the installation mode of the terminal rod is greatly different from that of a straight rod, and the terminal rod drop-out fuse is installed in the opposite direction of the electric pole and opposite to the direction of the overhead conductor.
When the terminal rod drop-out fuse is replaced, because the direction of the drop-out fuse is opposite to the direction of the live wire, an operator can not walk around the electric pole to fix the live upper end lead on the live main lead by operating the insulating bucket arm vehicle, so that the operation difficulty is increased, double operation is needed, one person utilizes the insulating operating rod to support and fix the live upper end lead, and the other person performs drop-out fuse replacement.
At the moment, the upper end lead of the fuse adopts an artificial fixed mode, so that the operation difficulty is increased, the danger is high, the operation efficiency is greatly reduced, if the upper end lead is fixed, the risk of interphase short circuit of single-phase live line grounding or two adjacent live lines is met due to misoperation or physical strength failure, and the safety of the operation personnel cannot be guaranteed.
How can solve the artificial fixed mode of fuse upper end lead wire when terminal pole drop out fuse is changed, change the double operation originally for single independent operation, reduce the risk factor in the operation, be the problem of waiting to solve in the actual work promptly.
Disclosure of Invention
The invention aims to solve the technical problem of providing an insulating shielding tool and an insulating shielding method for distribution network uninterrupted operation. The insulating platform extended by the insulating shielding tool is utilized to effectively fix the upper lead detached when the terminal rod drop-out fuse is replaced on the insulating component, so that the safety distance between an operator and the live equipment is ensured, the original double-person operation is changed into single-person independent operation, the risk factors in the operation are reduced, and the operation efficiency and the safety are improved.
The technical scheme of the invention is as follows: the utility model provides a join in marriage insulating apparatus that shields of network uninterrupted power operation which characterized by:
the distribution network uninterrupted operation insulating shielding tool comprises two groups of side phase insulating shielding tools and a group of middle phase insulating shielding tools which are fixed on a cross arm of a terminal rod;
each group of side phase insulating shielding tools consists of a side phase supporting rod, a side phase telescopic rod and a side phase lead wire bracket;
the side phase telescopic rod is fixed in the side phase supporting rod;
the end part of the side phase telescopic rod is provided with a side phase lead bayonet device, and the side phase lead bayonet device is provided with a first side phase lead bayonet and a side phase lead spring bolt;
the middle phase insulation shielding tool consists of a middle phase support rod, a middle phase telescopic rod, a middle phase lead bayonet device, a middle phase steering rod and a middle phase lead bracket;
the middle phase telescopic rod is fixed in the middle phase supporting rod;
the lower end of the middle phase steering rod is fixed at the end part of the middle phase telescopic rod, and the middle phase lead wire bracket is fixed at the upper end of the middle phase steering rod through a fixing pin of the middle phase lead wire bracket.
Specifically, the side phase telescopic rod is telescopically fixed in the side phase supporting rod through a telescopic rod positioning pin; the edge phase lead wire support is rotatably fixed at the root part of the edge phase support rod, and a second edge phase lead wire bayonet is arranged at the tail end of the edge phase lead wire support.
Specifically, the middle-phase telescopic rod is telescopically fixed in the middle-phase supporting rod through a telescopic rod positioning pin; the middle phase lead bayonet device is provided with a middle phase lead bayonet and a middle phase lead spring bolt.
Furthermore, the insulation shielding tool utilizes the upward-picking supporting principle to extend a wire supporting platform outside the cross arm of the terminal rod.
Furthermore, the side phase lead bayonet device and the middle phase lead bayonet device clamp the live lead of the phase in the corresponding lead bayonet by arranging the corresponding lead bayonet and the lead spring bolt, so as to form a stable fixed state and prevent the random swing of the live lead.
Furthermore, the electrified conducting wire clamping device is fixed on the cross arm of the terminal rod in a fixing pin, buckle or fastener fastening mode.
The technical scheme of the invention also provides an insulation shielding method for uninterrupted operation of the distribution network, which is characterized by comprising the following steps:
1) arranging a group of three electrified lead clamping devices;
2) two side phase wires and one middle phase wire are respectively fixed in the corresponding wire bayonets to form a stable fixed state;
3) forming a fixed mode below the electrified conducting wire for the two side phase conducting wires; for the middle phase lead positioned between the two conductors, a lead upturning fixing mode is adopted;
4) a stable wire supporting platform is extended outside the terminal pole cross arm by utilizing the electrified wire clamping device;
5) the safety distance between an operator and an upper charged body is ensured while the sufficient insulating performance is ensured;
6) adopt above-mentioned electrified wire card to fix the device, change double operation into single independent operation mode originally to reduce the risk factor in the operation, improve live working's efficiency and security.
Specifically, the live wire clamping device is telescopically fixed on a cross arm of the terminal rod.
Furthermore, the electrified conducting wire clamping device is fixed on the cross arm of the terminal rod in a fixing pin, buckle or fastener fastening mode.
The distribution network uninterrupted operation insulation shielding method applies the telescopic live wire clamping device to the replacement operation of the terminal pole drop-out fuse.
Compared with the prior art, the invention has the advantages that:
1. by adopting the insulating shielding device, the detached upper end lead can be effectively fixed on the insulating component, the original double operation is changed into single independent operation, the risk factors in the operation are reduced, and the operation efficiency and the safety are improved;
2. the insulating shielding tool utilizes the upward-picking supporting principle, namely, a wire supporting platform extends out of the cross arm of the terminal rod, so that the safety distance between an operator and an upper electrified body is guaranteed while the sufficient insulating performance is guaranteed;
3. the insulation shielding device is made into a telescopic linkage type structure, the insulation shielding devices of the three-phase live wires are different in form, two side phases are made into a fixed mode below the wires according to the device form, the middle phase between the two side phases is a wire upturning mode, the safety and the long distance between an operator and a live body can be effectively guaranteed, the problem of operation convenience is fully considered, and the habit of split-phase live operation is better met.
Drawings
FIG. 1 is a schematic view of the overall construction of the insulated shielding tool of the present invention;
FIG. 2 is a schematic view of the structure of the edge phase insulation shielding tool of the present invention;
FIG. 3 is a schematic view of the construction of the phase insulating shutter according to the invention;
fig. 4 is a block schematic diagram of the insulation shield method of the present invention.
In the figure, 1 is a terminal rod, 2 is a cross arm, 3 is an edge phase insulation shielding tool, 3-1 is an edge phase support rod, 3-2 is an edge phase telescopic rod, 3-3 is an edge phase wire bayonet device, 3-4 is a first edge phase wire bayonet, 3-5 is an edge phase wire spring bolt, 3-6 is a telescopic rod positioning pin, 3-7 is a telescopic rod positioning hole, 3-8 is an edge phase lead wire bracket, 3-9 is a second edge phase wire bayonet, 4 is a middle phase insulation shielding tool, 4-1 is a middle phase support rod, 4-2 is a middle phase telescopic rod, 4-3 is a middle phase lead wire bayonet device, 4-4 is a middle phase lead wire bayonet, 4-5 is a middle phase lead wire spring bolt, 4-6 is a telescopic rod positioning pin, 4-7 is a middle phase steering rod, 4-8 is a middle phase lead wire bracket, 4-9 is a fixing pin of the middle phase lead wire bracket, and 5 is an insulating porcelain insulator.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Because the installation mode of the terminal rod drop-out fuse is different from that of a straight rod, the existing drop-out fuse insulating cover cannot be applied to the terminal rod, and a corresponding insulating shielding tool is lacked in the current market. Usually, double-person operation is needed when the drop-out fuse is replaced, the isolation mode of the charged body and the ground potential is unstable and reliable, and great danger exists if an operator malfunctions.
In fig. 1, the distribution network uninterrupted operation insulating shielding tool in the technical scheme of the invention comprises two groups of side phase insulating shielding tools and one group of middle phase insulating shielding tools which are fixed on a cross arm 2 of a terminal rod 1.
In FIG. 2, each group of side phase insulating shielding tools consists of a side phase support rod 3-1, a side phase telescopic rod 3-2 and a side phase lead wire bracket 3-8; an edge phase lead bayonet device 3-3 is arranged at the end part of the edge phase telescopic rod, a first edge phase lead bayonet and an edge phase lead spring bolt 3-5 are arranged on the edge phase lead bayonet device, and the edge phase telescopic rod is telescopically fixed in the edge phase support rod through a telescopic rod positioning pin 3-6; the side phase lead wire support 3-8 is rotatably fixed at the root part of the side phase support rod, and the tail end of the side phase lead wire support is provided with a second side phase lead wire bayonet 3-9.
In practical use, the tail end of the live wire is fixed in the first side phase wire bayonet in the side phase wire bayonet device, and the live wire in the second side phase wire bayonet 3-9 (shown in figure 2) can be fully supported and fixed by adjusting the included angle between the side phase lead support and the side phase support rod (in a supporting state between the side phase lead support and the side phase support rod in the left side phase in figure 1 and in a closed state between the side phase lead support and the side phase support rod in the right side phase), so that a stable fixed relation is formed, the live wire is prevented from floating randomly, and the safety distance between the live wire and a live operator is ensured.
In fig. 3, the middle phase insulation shielding tool is composed of a middle phase support rod 4-1, a middle phase telescopic rod 4-2, a middle phase lead bayonet device 4-3, a middle phase steering rod 4-7 and a middle phase lead wire bracket 4-8.
The middle phase telescopic rod is telescopically fixed in the middle phase support rod through telescopic rod positioning pins 4-6, the lower end of the middle phase steering rod is fixed at the end part of the middle phase telescopic rod, and the middle phase lead wire support is fixed at the upper end of the middle phase steering rod through a middle phase lead wire support fixing pin 4-9.
The middle phase lead bayonet device is provided with a middle phase lead bayonet 4-4 and a middle phase lead spring bolt 4-5.
According to the technical scheme, the middle phase insulating shielding tool of the insulating shielding tool is lifted by 75 degrees, the wire bayonet device is arranged at the opening, the tail end of the middle phase upper end lead of the drop-out fuse fixed on the insulating porcelain bottle 5 shown in the figure 1 can be firmly fixed on the supporting insulating device, and the safety distance of operators is guaranteed.
By adopting the insulating shielding device, the detached upper end lead can be effectively fixed on the insulating component, the original double operation is changed into single independent operation, the risk factors in the operation are reduced, and the operation efficiency and the safety are improved.
The insulating shielding tool utilizes the upward-picking supporting principle, is equivalent to a wire supporting platform extending out of the cross arm of the terminal rod, ensures the safe distance between an operator and an upper charged body while ensuring enough insulating performance, and takes the diversity of field operation environments and the diversity of the lengths of upper leads into consideration, the insulating shielding device is made into a telescopic linkage type, the insulating shielding devices of three-phase charged wires are different in form, two side phases are made into a fixed mode below the wires according to the device form, and a middle phase positioned between the two side phases is a wire upturning mode, so that the safe and long distance between the operator and the charged body can be effectively ensured, the problem of operation convenience is fully considered, and the insulating shielding tool is more in line with the habit of split-phase charged operation.
In the side phase lead bayonet device and the middle phase lead bayonet device in the technical scheme, the corresponding lead bayonet and the lead spring bolt are arranged to clamp the electrified lead of the phase in the corresponding lead bayonet to form a stable fixed state, so that the electrified lead is prevented from swinging randomly.
The technical scheme adopts a telescopic structure and a positioning pin structure, so that each telescopic rod is telescopically fixed on the middle phase supporting rod and retracts when not in use, the overall length is reduced, and the carrying and the collection are convenient; when the telescopic rod is used, the extension length of the telescopic rod can be adjusted freely through corresponding adjustment of the telescopic rod positioning pin and the telescopic rod positioning hole, so that the telescopic rod is suitable for the lengths of live wires of different lines.
When the terminal rod top drop-out fuse has the problems of loosening, damage and the like, the insulating shielding tool in the technical scheme can be used for assisting operation, so that the safety and the working efficiency of operators are improved.
In fig. 4, the technical solution of the present invention further provides a method for insulating and shielding distribution network operation without power outage by using the above apparatus, which specifically includes the following steps:
1) arranging a group of three electrified lead clamping devices;
2) two side phase wires and one middle phase wire are respectively fixed in the corresponding wire bayonets to form a stable fixed state;
3) forming a fixed mode below the electrified conducting wire for the two side phase conducting wires; for the middle phase lead positioned between the two conductors, a lead upturning fixing mode is adopted;
4) a stable wire supporting platform is extended outside the terminal pole cross arm by utilizing the electrified wire clamping device;
5) the safety distance between an operator and an upper charged body is ensured while the sufficient insulating performance is ensured;
6) adopt above-mentioned electrified wire card to fix the device, change double operation into single independent operation mode originally to reduce the risk factor in the operation, improve live working's efficiency and security.
Furthermore, the electrified conducting wire clamping and fixing device is telescopically fixed on the cross arm of the terminal rod.
Furthermore, the electrified conducting wire clamping device is fixed on the cross arm of the terminal rod in a fixing pin, buckle or fastener fastening mode.
Furthermore, the telescopic electrified lead clamping and fixing device is applied to the replacement operation of the terminal pole drop-out fuse.
The technical scheme of the invention is suitable for insulating shielding work in terminal rod drop-out fuse replacement work, the live wire can be firmly fixed by using the insulating platform extended by the insulating shielding tool, the safety distance between an operator and live equipment is ensured, the situation that two persons are required to cooperate with the operation in the past is changed into single-person operation, various unstable factors caused by increase of the operator in the operation are effectively avoided, the frequency of direct contact of the operator with a live body is greatly reduced, the safety and the working efficiency of live operation are effectively improved, and the continuous and reliable operation of a power grid is ensured.
The invention can be widely applied to the field of replacement and maintenance of terminal rod drop-out fuses.
Claims (10)
1. The utility model provides a join in marriage insulating apparatus that shields of network operation without power failure, characterized by:
the distribution network uninterrupted operation insulating shielding tool comprises two groups of side phase insulating shielding tools and a group of middle phase insulating shielding tools which are fixed on a cross arm of a terminal rod;
each group of side phase insulating shielding tools consists of a side phase supporting rod, a side phase telescopic rod and a side phase lead wire bracket;
the side phase telescopic rod is fixed in the side phase supporting rod;
the end part of the side phase telescopic rod is provided with a side phase lead bayonet device, and the side phase lead bayonet device is provided with a first side phase lead bayonet and a side phase lead spring bolt;
the middle phase insulation shielding tool consists of a middle phase support rod, a middle phase telescopic rod, a middle phase lead bayonet device, a middle phase steering rod and a middle phase lead bracket;
the middle phase telescopic rod is fixed in the middle phase supporting rod;
the lower end of the middle phase steering rod is fixed at the end part of the middle phase telescopic rod, and the middle phase lead wire bracket is fixed at the upper end of the middle phase steering rod through a fixing pin of the middle phase lead wire bracket.
2. The insulated shielding tool for distribution network uninterrupted operation according to claim 1, wherein the side phase telescopic rod is telescopically fixed in the side phase supporting rod through a telescopic rod positioning pin; the edge phase lead wire support is rotatably fixed at the root part of the edge phase support rod, and a second edge phase lead wire bayonet is arranged at the tail end of the edge phase lead wire support.
3. The insulated shielding tool for distribution network uninterrupted operation according to claim 1, wherein the middle phase telescopic rod is telescopically fixed in the middle phase supporting rod through a telescopic rod positioning pin; the middle phase lead bayonet device is provided with a middle phase lead bayonet and a middle phase lead spring bolt.
4. The insulation shielding tool for distribution network uninterrupted operation according to claim 1, wherein the insulation shielding tool utilizes the upper cantilever support principle to extend a wire support platform outside the cross arm of the terminal rod.
5. The insulated shielding tool for distribution network uninterrupted operation according to claim 1, wherein the side phase wire bayonet device and the middle phase wire bayonet device are provided with corresponding wire bayonets and wire spring bolts to clamp the live wires of the phases in the corresponding wire bayonets, so as to form a stable fixed state and prevent the live wires from swinging randomly.
6. The insulated shielding tool for distribution network uninterrupted operation according to claim 1, wherein the live wire clamping device is fixed on the cross arm of the terminal rod by a fixing pin, a buckle or a fastener.
7. The distribution network uninterrupted operation insulation shielding method adopting the claim 1 is characterized by comprising the following steps:
1) arranging a group of three electrified lead clamping devices;
2) two side phase wires and one middle phase wire are respectively fixed in the corresponding wire bayonets to form a stable fixed state;
3) forming a fixed mode below the electrified conducting wire for the two side phase conducting wires; for the middle phase lead positioned between the two conductors, a lead upturning fixing mode is adopted;
4) a stable wire supporting platform is extended outside the terminal pole cross arm by utilizing the electrified wire clamping device;
5) the safety distance between an operator and an upper charged body is ensured while the sufficient insulating performance is ensured;
6) adopt above-mentioned electrified wire card to fix the device, change double operation into single independent operation mode originally to reduce the risk factor in the operation, improve live working's efficiency and security.
8. The insulation shielding method for the distribution network in the uninterrupted power operation according to claim 8, wherein the live wire clamping device is telescopically fixed on a cross arm of the terminal pole.
9. The insulation shielding method for the distribution network in the uninterrupted power operation according to claim 8, wherein the live wire clamping device is fixed on the cross arm of the terminal rod in a fastening mode through a fixing pin, a buckle or a fastener.
10. The insulation shielding method for the distribution network in the uninterrupted operation according to claim 8, wherein the telescopic live wire clamping device is applied to the replacement operation of the terminal rod drop-out fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398857.9A CN111564787A (en) | 2020-05-12 | 2020-05-12 | Distribution network uninterrupted operation insulation shielding tool and insulation shielding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398857.9A CN111564787A (en) | 2020-05-12 | 2020-05-12 | Distribution network uninterrupted operation insulation shielding tool and insulation shielding method |
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| Publication Number | Publication Date |
|---|---|
| CN111564787A true CN111564787A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398857.9A Pending CN111564787A (en) | 2020-05-12 | 2020-05-12 | Distribution network uninterrupted operation insulation shielding tool and insulation shielding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636251A (en) * | 2020-12-31 | 2021-04-09 | 上海东捷建设(集团)有限公司第五分公司 | Method for changing 10kV straight pole into sectional pole in live mode |
-
2020
- 2020-05-12 CN CN202010398857.9A patent/CN111564787A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636251A (en) * | 2020-12-31 | 2021-04-09 | 上海东捷建设(集团)有限公司第五分公司 | Method for changing 10kV straight pole into sectional pole in live mode |
| CN112636251B (en) * | 2020-12-31 | 2022-07-19 | 上海东捷建设(集团)有限公司第五分公司 | Method for changing 10kV straight pole into sectional pole in live mode |
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