CN107947027B - Installation method of lightning protection pin insulator installation tool for distribution overhead line - Google Patents
Installation method of lightning protection pin insulator installation tool for distribution overhead line Download PDFInfo
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- CN107947027B CN107947027B CN201711426408.5A CN201711426408A CN107947027B CN 107947027 B CN107947027 B CN 107947027B CN 201711426408 A CN201711426408 A CN 201711426408A CN 107947027 B CN107947027 B CN 107947027B
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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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention relates to a mounting method of a lightning protection pin insulator mounting tool for a distribution overhead line, and belongs to the technical field of power supply overhaul and maintenance. The technical proposal is as follows: a threading opening (10) is arranged at the middle part between the upper puncture wire clamp (1) and the lower puncture wire clamp (2), an insulated wire passes through the threading opening (10), a puncture (9) is vertically downwards arranged at the part of the upper puncture wire clamp (1) positioned at the threading opening, and the puncture (9) is contacted with an aluminum stranded wire in the insulated wire after penetrating through an insulating layer at the upper end of the insulated wire; the two opening gaskets (8) are respectively and symmetrically sleeved on two sides of the bottom end of the screw rod (4) and are positioned in a gap between the upper puncture wire clamp (1) and the lower puncture wire clamp (2). The invention has the beneficial effects that: the cost of purchasing the torque wrench in a large batch is reduced, the inconvenience caused by carrying the torque wrench by a person climbing the pole is reduced, and the working efficiency is improved; the operation is simple, the grasping is easy, the accuracy can be ensured, and the workload of staff is reduced.
Description
Technical Field
The invention relates to a mounting method of a lightning protection pin insulator mounting tool for a distribution overhead line, and belongs to the technical field of power supply overhaul and maintenance.
Background
The power supply system is used for weakening line tree contradiction, improving foreign matter prevention capability of the distribution overhead line, and in recent years, insulation rate of the distribution overhead line is continuously improved, and accordingly, the problem of line lightning protection is caused, and lightning protection needle type insulator line lightning protection equipment is adopted for lightning protection of the overhead insulated conductor at present.
The upper end of the lightning protection pin insulator adopts a puncture wire clamp, penetrates through an insulating layer of an overhead insulated conductor to be contacted with an internal aluminum stranded wire, and the lower end adopts a discharge gap to release overvoltage and overcurrent caused by lightning stroke.
According to construction requirements, the lightning protection pin insulator must be installed by adopting a special torque wrench, and the operation is performed according to the torque change of the wrench, so that the puncture is ensured to only penetrate through the insulating sheath, the damage to the internal aluminum stranded wire is avoided, and the current-carrying capacity drop and wire breakage accidents caused by the damage to the aluminum stranded wire are avoided. However, torque wrenches on the market are expensive to sell, and are heavier than ordinary wrenches in weight, so that workers are very laborious to climb the pole with the torque wrenches, and the operation is very heavy; in addition, the torque wrench is adopted, so that the torque data are required to be observed simultaneously when the puncture wire clamp bolt is fastened, the time and the labor are wasted, and the operation is very inconvenient.
Disclosure of Invention
The invention aims to provide a mounting method of a lightning protection pin insulator mounting tool for a distribution overhead line, wherein the lightning protection pin insulator is mounted without using a special torque wrench, and can be mounted by using a common adjustable wrench, so that the cost of purchasing the torque wrench in a large scale is reduced, the mounting method is convenient to carry, the inconvenience caused by carrying the torque wrench by a pole climbing person is reduced, the adjustable wrench is adopted to fasten in place, the construction efficiency is improved, and the problems in the prior art are solved.
The technical scheme of the invention is as follows:
the utility model provides a distribution overhead line lightning protection needle insulator mounting tool, contains puncture fastener, lower puncture fastener, nut, screw rod, insulating base, iron core lead wire, insulating overcoat and opening gasket down, puncture fastener sets up in insulating base top down, go up the puncture fastener and set up in the top of puncture fastener down, go up the puncture fastener and be equipped with the space down between the puncture fastener, the screw rod is two, the mutual symmetry sets up, fix on puncture fastener down after the lower extreme of screw rod runs through last puncture fastener, the upper end of screw rod is equipped with the nut, the nut is located the top of last puncture fastener; a threading opening is formed in the middle part between the upper puncture wire clamp and the lower puncture wire clamp, an insulated wire passes through the threading opening, a puncture is vertically and downwards arranged at the part of the upper puncture wire clamp, which is positioned at the threading opening, and the puncture is contacted with an aluminum stranded wire in the insulated wire after penetrating through an insulating layer of the insulated wire; the two opening gaskets are of C-shaped structures and are respectively and symmetrically sleeved on two sides of the bottom end of the screw rod and positioned in a gap between the upper puncture wire clamp and the lower puncture wire clamp, and the opening directions of the two opening gaskets are opposite; the iron core lead wire is connected with the lower puncture clamp, and an insulating jacket is arranged outside the iron core lead wire.
The thickness of the two opening gaskets is equal, and the thickness of the two opening gaskets is determined according to the diameter of an aluminum stranded wire inside an insulated wire clamped by the upper puncture wire clamp and the lower puncture wire clamp: the upper puncture clamp is clamped, the puncture of the upper puncture clamp penetrates through the insulating layer of the insulated wire and then is just contacted with the aluminum stranded wire in the insulated wire, and the distance between the upper puncture clamp and the lower puncture clamp is the thickness of the opening gasket; the opening gasket is placed on the lower puncture wire clamp, and due to the limitation of the opening gasket, after the puncture of the upper puncture wire clamp is guaranteed to be just contacted with the aluminum stranded wire in the insulated wire, the force can not be applied to the insulated wire any more, and the insulated wire is protected from being damaged.
The C-shaped structure of the opening gasket is suitable for being inserted between the upper puncture wire clamp and the lower puncture wire clamp at two sides, and cannot be influenced by the screw rod.
The insulating base is arranged on the cross arm of the electric pole.
The iron core lead wire is connected with the lightning arrester.
A method for installing a lightning protection pin insulator of a distribution overhead line comprises the following steps:
(1) firstly, placing an insulated wire with the same model as an insulated wire on an electric pole between an upper puncture wire clamp and a lower puncture wire clamp of a lightning protection insulator with the same model as the electric pole on the ground, and fastening a nut at the upper end of a screw rod by using a torque wrench to ensure that the puncture of the upper puncture wire clamp penetrates through an insulating layer of the insulated wire and then contacts with an aluminum stranded wire in the insulated wire;
(2) measuring the distance between the upper puncture wire clamp and the lower puncture wire clamp by using a vernier caliper; manufacturing two opening gaskets which are of C-shaped structures, wherein the thickness of each opening gasket is equal to the distance between an upper puncture wire clamp and a lower puncture wire clamp measured by a vernier caliper;
(3) when in construction, the common wrench and the opening gaskets are carried to climb on the electric pole, the opening gaskets are respectively padded at two sides of the screw rod between the upper puncture wire clamp and the lower puncture wire clamp, and the opening directions of the two opening gaskets are opposite; the nut at the upper end of the screw rod is fastened by adopting an ordinary wrench, and after the puncture of the upper puncture wire clamp pierces the insulating layer of the insulated wire, the upper puncture wire clamp contacts with the aluminum stranded wire in the insulated wire, and at the moment, the upper puncture wire clamp is tightly pressed on the opening gasket, so that the puncture of the upper puncture wire clamp is ensured to be just contacted with the aluminum stranded wire in the insulated wire due to the limitation of the opening gasket, and then force can not be applied to the insulated wire any more;
(4) and finally, screwing the nut at the upper end of the fastening screw by using an ordinary wrench to finish the installation of the lightning protection pin insulator of the distribution overhead line.
The invention has the beneficial effects that: the cost of purchasing special torque wrenches in large batches can be reduced, the inconvenience caused by carrying the torque wrenches by pole climbing personnel is reduced, and the working efficiency is improved; the method is simple to operate and easy to master, can ensure accuracy, shortens power failure time, reduces the unintelligible of users, and reduces the workload of staff; the work which needs to be completed in one hour before is only needed for ten minutes, so that the work efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of an open gasket construction according to the present invention;
in the figure: the upper puncture clamp 1, the lower puncture clamp 2, the nut 3, the screw 4, the insulating base 5, the iron core lead 6, the insulating jacket 7, the opening gasket 8, the puncture 9 and the threading opening 10.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the utility model provides a distribution overhead line lightning protection needle insulator mounting tool, contains puncture fastener 1, lower puncture fastener 2, nut 3, screw rod 4, insulating base 5, iron core lead 6, insulating overcoat 7 and opening gasket 8, puncture fastener 2 sets up at insulating base 5 top down, and puncture fastener 1 sets up the top at puncture fastener 2 down, is equipped with the space between puncture fastener 1 and the puncture fastener 2 down, and screw rod 4 is two, and mutual symmetry sets up, and the lower extreme of screw rod 4 runs through puncture fastener 1 after fixing on puncture fastener 2 down, and the upper end of screw rod 4 is equipped with nut 3, and nut 3 is located the top of puncture fastener 1 down; a threading opening 10 is formed in the middle part between the upper puncture wire clamp 1 and the lower puncture wire clamp 2, an insulated wire passes through the threading opening 10, a puncture 9 is vertically and downwards arranged on the part of the upper puncture wire clamp 1 positioned at the threading opening, and the puncture 9 is contacted with an aluminum stranded wire in the insulated wire after penetrating through an insulating layer of the insulated wire; the two opening gaskets 8 are of C-shaped structures and are respectively and symmetrically sleeved on two sides of the bottom end of the screw 4 and positioned in a gap between the upper puncture wire clamp 1 and the lower puncture wire clamp 2, and the opening directions of the two opening gaskets are opposite; the iron core lead 6 is connected with the lower puncture clamp 2, and an insulating jacket 7 is arranged outside the iron core lead 6.
The thickness of the two opening gaskets is equal, and the thickness of the two opening gaskets is determined according to the diameter of an aluminum stranded wire inside an insulated wire clamped by the upper puncture wire clamp 1 and the lower puncture wire clamp 2: the upper puncture clamp 1 is clamped, and a puncture 9 of the upper puncture clamp 1 is just contacted with an aluminum stranded wire in the insulated wire after penetrating through an insulating layer of the insulated wire, at the moment, the distance between the upper puncture clamp 1 and the lower puncture clamp 2 is the thickness of an opening gasket; the opening gasket 8 is placed on the lower puncture clamp 2, and due to the limitation of the opening gasket 8, after the puncture 9 of the upper puncture clamp 1 is guaranteed to be just contacted with an aluminum stranded wire in an insulated wire, the force can not be applied to the insulated wire any more, so that the insulated wire is protected from being damaged.
The C-shaped structure of the split washer 8, in order to accommodate insertion between the upper and lower piercing clamps 1, 2 on both sides, is not affected by the screw 4.
The insulating base 5 is arranged on the cross arm of the electric pole.
The core lead 6 is connected with a lightning arrester.
A method for installing a lightning protection pin insulator of a distribution overhead line comprises the following steps:
(1) firstly, placing an insulated wire with the same model as an insulated wire on an electric pole between an upper puncture wire clamp and a lower puncture wire clamp of a lightning protection insulator with the same model as the electric pole on the ground, and fastening a nut at the upper end of a screw rod by using a torque wrench to ensure that the puncture of the upper puncture wire clamp penetrates through an insulating layer of the insulated wire and then contacts with an aluminum stranded wire in the insulated wire;
(2) measuring the distance between the upper puncture wire clamp and the lower puncture wire clamp by using a vernier caliper; manufacturing two opening gaskets which are of C-shaped structures, wherein the thickness of the opening gasket 8 is equal to the distance between an upper puncture wire clamp and a lower puncture wire clamp measured by a vernier caliper;
(3) during construction, the common wrench and the opening gaskets 8 are carried to climb on the electric pole, the opening gaskets are respectively padded at two sides of the screw rod between the upper puncture wire clamp 1 and the lower puncture wire clamp 2, and the opening directions of the two opening gaskets are opposite; the nut at the upper end of the screw rod is fastened by adopting an ordinary wrench, and after the puncture 9 of the upper puncture wire clamp 1 pierces through the insulating layer of the insulated wire, the upper puncture wire clamp 1 contacts with the aluminum stranded wire in the insulated wire, and at the moment, the upper puncture wire clamp 1 is tightly pressed on the opening gasket, and the limitation of the opening gasket 8 ensures that the puncture 9 of the upper puncture wire clamp 1 just contacts with the aluminum stranded wire in the insulated wire, and then force can not be applied to the insulated wire any more;
(4) and finally, screwing the nut at the upper end of the fastening screw by using an ordinary wrench to finish the installation of the lightning protection pin insulator of the distribution overhead line.
According to the invention, the split gaskets matched between the lightning protection pin insulators and the insulated conductors of various types of distribution overhead lines can be manufactured in a workshop, and the split gaskets are manufactured in batches, so that the construction efficiency is improved by selecting the adaptive split gaskets during construction.
The opening gasket can be taken down for reuse after the installation is finished; or can be disposable without taking down.
The caliper card can be used for being improved by a gap measuring caliper, the top end of the caliper card is improved into an opening gasket, and the caliper card with the same thickness as the measuring distance is padded outside a screw rod in the middle of an upper puncture clamp and a lower puncture clamp during construction according to measuring data.
Claims (3)
1. The utility model provides a distribution overhead line lightning protection pin insulator mounting tool's installation method installs following distribution overhead line lightning protection pin insulator mounting tool, distribution overhead line lightning protection pin insulator mounting tool contains puncture fastener (1), down puncture fastener (2), nut (3), screw rod (4), insulating base (5), iron core lead wire (6), insulating overcoat (7) and opening gasket (8), down puncture fastener (2) set up in insulating base (5) top, go up puncture fastener (1) and set up in the top of puncture fastener (2) down, go up and be equipped with the space between puncture fastener (1) and the puncture fastener (2) down, screw rod (4) are two, mutual symmetry sets up, the lower extreme of screw rod (4) is fixed on puncture fastener (2) down after running through puncture fastener (1), the upper end of screw rod (4) is equipped with nut (3), and nut (3) are located the top of last puncture fastener (1); a threading opening (10) is arranged at the middle part between the upper puncture wire clamp (1) and the lower puncture wire clamp (2), an insulated wire passes through the threading opening (10), a puncture (9) is vertically downwards arranged at the part of the upper puncture wire clamp (1) positioned at the threading opening, and the puncture (9) is contacted with an aluminum stranded wire in the insulated wire after penetrating through an insulating layer of the insulated wire; the two opening gaskets (8) are of C-shaped structures and are respectively and symmetrically sleeved on two sides of the bottom end of the screw rod (4) and positioned in a gap between the upper puncture wire clamp (1) and the lower puncture wire clamp (2), and the opening directions of the two opening gaskets are opposite; the iron core lead (6) is connected with the lower puncture clamp (2), and an insulating jacket (7) is arranged outside the iron core lead (6);
the method is characterized by comprising the following steps:
(1) firstly, placing an insulated wire with the same model as an insulated wire on an electric pole between an upper puncture wire clamp and a lower puncture wire clamp of a lightning protection insulator with the same model as the electric pole on the ground, and fastening a nut at the upper end of a screw rod by using a torque wrench to ensure that the puncture of the upper puncture wire clamp penetrates through an insulating layer of the insulated wire and then contacts with an aluminum stranded wire in the insulated wire;
(2) measuring the distance between the upper puncture wire clamp and the lower puncture wire clamp by using a vernier caliper; manufacturing two opening gaskets which are of C-shaped structures, wherein the thickness of the opening gasket (8) is equal to the distance between an upper puncture wire clamp and a lower puncture wire clamp measured by a vernier caliper;
(3) during construction, an ordinary wrench and an opening gasket (8) are carried to climb on an electric pole, two sides of a screw rod between an upper puncture wire clamp (1) and a lower puncture wire clamp (2) are respectively padded with the opening gaskets, and the opening directions of the two opening gaskets are opposite; the nut at the upper end of the screw rod is fastened by adopting an ordinary wrench, and after a puncture (9) of the upper puncture wire clamp (1) pierces through an insulating layer of an insulated wire, the upper puncture wire clamp (1) is contacted with an aluminum stranded wire in the insulated wire, and at the moment, the upper puncture wire clamp (1) is tightly pressed on an opening gasket, and the upper puncture wire clamp (1) can not exert force on the insulated wire after the puncture (9) of the upper puncture wire clamp (1) is just contacted with the aluminum stranded wire in the insulated wire due to the limitation of the opening gasket (8);
(4) and finally, screwing the nut at the upper end of the fastening screw by using an ordinary wrench to finish the installation of the lightning protection pin insulator of the distribution overhead line.
2. The installation method of the lightning protection pin insulator installation tool for the power distribution overhead line according to claim 1, wherein the installation method comprises the following steps: the thickness of the two opening gaskets (8) is equal, and the thickness of the opening gaskets is determined according to the diameter of an aluminum stranded wire inside an insulated wire clamped by the upper puncture wire clamp (1) and the lower puncture wire clamp (2): the upper puncture wire clamp (1) is clamped, the puncture (9) of the upper puncture wire clamp (1) pierces the insulating layer of the insulated wire and then is just contacted with the aluminum stranded wire in the insulated wire, and the distance between the upper puncture wire clamp (1) and the lower puncture wire clamp (2) is the thickness of the opening gasket.
3. The installation method of the lightning protection pin insulator installation tool for the power distribution overhead line according to claim 1, wherein the installation method comprises the following steps: the insulating base (5) is arranged on a cross arm of the electric pole; the iron core lead wire (6) is connected with the lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426408.5A CN107947027B (en) | 2017-12-26 | 2017-12-26 | Installation method of lightning protection pin insulator installation tool for distribution overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426408.5A CN107947027B (en) | 2017-12-26 | 2017-12-26 | Installation method of lightning protection pin insulator installation tool for distribution overhead line |
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| Publication Number | Publication Date |
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| CN107947027A CN107947027A (en) | 2018-04-20 |
| CN107947027B true CN107947027B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711426408.5A Active CN107947027B (en) | 2017-12-26 | 2017-12-26 | Installation method of lightning protection pin insulator installation tool for distribution overhead line |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199636A (en) * | 1992-01-16 | 1993-08-06 | Chubu Electric Power Co Inc | Arrester for distribution line |
| CN101325104A (en) * | 2007-06-15 | 2008-12-17 | 上海兆邦电力器材有限公司 | Lightning protection post insulator |
| CN203013960U (en) * | 2012-12-26 | 2013-06-19 | 刘晓华 | Insulating piercing connector |
| CN207603091U (en) * | 2017-12-26 | 2018-07-10 | 国网冀北电力有限公司唐山供电公司 | A kind of distribution overhead line lightning rod type insulator installation tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779020A (en) * | 2015-03-31 | 2015-07-15 | 国家电网公司 | Asymmetric piercing electrode for piercing type lightning arrester |
-
2017
- 2017-12-26 CN CN201711426408.5A patent/CN107947027B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199636A (en) * | 1992-01-16 | 1993-08-06 | Chubu Electric Power Co Inc | Arrester for distribution line |
| CN101325104A (en) * | 2007-06-15 | 2008-12-17 | 上海兆邦电力器材有限公司 | Lightning protection post insulator |
| CN203013960U (en) * | 2012-12-26 | 2013-06-19 | 刘晓华 | Insulating piercing connector |
| CN207603091U (en) * | 2017-12-26 | 2018-07-10 | 国网冀北电力有限公司唐山供电公司 | A kind of distribution overhead line lightning rod type insulator installation tool |
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| Publication number | Publication date |
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| CN107947027A (en) | 2018-04-20 |
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