CN211404096U - Ground wire capable of reducing damage of insulating layer - Google Patents
Ground wire capable of reducing damage of insulating layer Download PDFInfo
- Publication number
- CN211404096U CN211404096U CN201922311252.7U CN201922311252U CN211404096U CN 211404096 U CN211404096 U CN 211404096U CN 201922311252 U CN201922311252 U CN 201922311252U CN 211404096 U CN211404096 U CN 211404096U
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- CN
- China
- Prior art keywords
- polyvinyl chloride
- insulating sheath
- protection spring
- chloride insulating
- annealed copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 utility model relates to a reduce damaged earth connection of insulating layer has solved the not enough of prior art, and technical scheme is: including polyvinyl chloride insulating sheath and protection spring, polyvinyl chloride insulating sheath cover is established in protection spring's the outside, and protection spring is around establishing the outside of annealed copper line in the distribution lines earth connection, protection spring's length is less than polyvinyl chloride insulating sheath's length, set up a pair of connecting hole along polyvinyl chloride insulating sheath central symmetry arrangement on the outer wall of polyvinyl chloride insulating sheath one end, the annealed copper conductor passes through bolted connection with insulating action bars junction, and the annealed copper conductor also passes through bolted connection with the earth bar junction, and all bolts all run through the connecting hole that corresponds, the bolt passes through the metallic conductor intercommunication with the protection spring that corresponds.
Description
Technical Field
The utility model relates to a ground connection circuit accessory, in particular to reduce the damaged earth connection of insulating layer.
Background
With the rapid development of economic society, the net rack of electric power is stronger and stronger, and the sea salt distribution network line reaches 2073.58 kilometers at present, wherein the proportion of overhead lines is about 70%. When overhead lines are subjected to daily power failure maintenance and fault first-aid repair, grounding wires must be hung to ensure the safety of personnel. The short-circuit grounding wire is a common safety appliance for temporarily short-circuiting and grounding power-cut equipment, and aims to discharge residual charges and prevent dangerous voltage of accidental power supply or induced voltage generated by the influence of adjacent electrified equipment and circuits from causing electric shock and death or serious burn of workers. In operation, the shorted ground is considered to be the live wire of the worker.
Grounding: the tool is hung on the power-off equipment and connected with the ground, and the purpose is to ensure the safety of workers when voltage accidentally appears on the equipment and the line. The components of it include: three insulating operation poles, the ground connection length is 3 x 1.5 meters +12 meters (or 15 meters or 16 meters), stranded annealed copper specification: not less than 25mm2, a ground rod.
The higher level requires, and the damage ratio of distribution lines earth connection is 3.2%, and the actual current situation then is: the damage rate of the grounding wire is found to be 7.9% in statistics in three years, and the method has a certain difference with the requirement of a company. (damage ratio = number of damaged ground lines/total number of ground lines 100%)
The damaged number of the 10 kV overhead line ground wire insulating layers accounts for 65.8% of the total number of damage, and is far higher than the proportion of other parts, and the important point is that the positions of the 10 kV overhead line ground wire insulating layers, which are mainly concerned, are damaged comprise the joints of the annealed copper wires and the insulating operating rods and the joints of the annealed copper wires and the grounding pins.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned prior art and have nearly three years earth connection statistics discovery spoilage to be 7.9% problem, provide a reduce the damaged earth connection of insulating layer.
The utility model provides a technical scheme that its technical problem adopted is: a grounding wire for reducing the damage of an insulating layer comprises three insulating operating rods, a plurality of strands of annealed copper wires and a grounding rod, wherein the three insulating operating rods are respectively connected with the grounding rod through the annealed copper wires and comprise a polyvinyl chloride insulating sheath and a protection spring, the polyvinyl chloride insulating sheath is sleeved on the outer side of the protection spring, the protection spring is wound on the outer side of the annealed copper wires in the grounding wire of the distribution line, the length of the protection spring is smaller than that of the polyvinyl chloride insulating sheath, a pair of connecting holes which are symmetrically arranged along the center of the polyvinyl chloride insulating sheath are formed in the outer wall of one end of the polyvinyl chloride insulating sheath, the joint of the soft copper conductor and the insulating operating rod is connected through a bolt, the joint of the soft copper conductor and the grounding rod is also connected through a bolt, all bolts penetrate through the corresponding connecting holes, and the bolts are communicated with the corresponding protection springs through metal conductors. The bending-resistant transparent sheaths are additionally arranged at the two ends of the annealed copper wire, the strength of the sheaths is improved by embedding the steel wires, the insulating layer is prevented from being abraded, a part of force generated when the annealed copper wire is bent is offset, the bending of the insulating layer is reduced, and the damage degree is reduced. The insulating sheath is made of polyvinyl chloride, has high toughness, oil resistance, acid and alkali resistance, wear resistance and four-season flexibility, and is embedded with spiral elastic steel wires to further improve the strength and the bending resistance of the sheath. The inner wall of the insulating sheath is smooth and transparent, and the state of the internal annealed copper wire can be clearly seen. The transparent sheath can not only effectively protect the insulating layer but also can not prevent constructors from checking the state of the annealed copper wires. The implementation is simple, the transparent sheaths are directly sleeved at the two ends of the annealed copper wires, and the installation is simple and easy.
Preferably, the length of the polyvinyl chloride insulating sheath is 20cm, the thickness of the polyvinyl chloride insulating sheath is 0.4cm, the inner diameter of the polyvinyl chloride insulating sheath is 1.6cm, and the distance between a connecting hole in the polyvinyl chloride insulating sheath and the end part of the polyvinyl chloride insulating sheath is 0.6 cm.
Preferably, the polyvinyl chloride insulating sheaths are transparent polyvinyl chloride insulating sheaths.
Preferably, the bolt penetrates through the two connecting holes to be connected with the grounding rod or the insulating operating rod, the soft copper conductor is wound on a screw rod of the bolt, and the end part of the protection spring is abutted to the bolt.
Preferably, an end of the protection spring is bent and then wound around a screw of the bolt.
The utility model discloses a substantive effect is: the utility model discloses the insulating sheath inner wall is smooth transparent, can clearly see inside annealed copper wire state. The transparent sheath can not only effectively protect the insulating layer but also can not prevent constructors from checking the state of the annealed copper wires. The implementation is simple, the transparent sheaths are directly sleeved at the two ends of the annealed copper wires, and the installation is simple and easy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural section view of the present invention.
In the figure: 1. polyvinyl chloride insulating sheath, 2, connecting hole.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
A grounding wire for reducing the damage of an insulating layer (see figure 1) comprises three insulating operating rods, a plurality of strands of annealed copper wires and a grounding rod, wherein the three insulating operating rods are respectively connected with the grounding rod through the annealed copper wires and comprise a polyvinyl chloride insulating sheath 1 and a protection spring, the polyvinyl chloride insulating sheath is sleeved on the outer side of the protection spring, the protection spring is wound on the outer side of the annealed copper wires in the grounding wire of the distribution line, the length of the protection spring is smaller than that of the polyvinyl chloride insulating sheath, a pair of connecting holes which are symmetrically arranged along the center of the polyvinyl chloride insulating sheath are formed in the outer wall of one end of the polyvinyl chloride insulating sheath, the joint of the soft copper conductor and the insulating operating rod is connected through a bolt, the joint of the soft copper conductor and the grounding rod is also connected through a bolt, all bolts penetrate through the corresponding connecting holes 2, and the bolts are communicated with the corresponding protection springs through metal conductors. The length of the polyvinyl chloride insulating sheath is 20cm, the thickness of the polyvinyl chloride insulating sheath is 0.4cm, the inner diameter of the polyvinyl chloride insulating sheath is 1.6cm, and the distance between a connecting hole in the polyvinyl chloride insulating sheath and the end part of the polyvinyl chloride insulating sheath is 0.6 cm. And the end part of the protection spring is bent and then wound on the screw rod of the bolt. The bolt penetrates through the two connecting holes to be connected with the grounding rod or the insulating operating rod, the soft copper conductor is wound on a screw rod of the bolt, and the end part of the protection spring is abutted to the bolt. The polyvinyl chloride insulating sheaths are transparent polyvinyl chloride insulating sheaths.
The bending-resistant transparent sheaths are additionally arranged at the two ends of the annealed copper wire, the strength of the sheaths is improved by embedding the steel wires, the insulating layer is prevented from being abraded, a part of force generated when the annealed copper wire is bent is offset, the bending of the insulating layer is reduced, and the damage degree is reduced. The insulating sheath is made of polyvinyl chloride, has high toughness, oil resistance, acid and alkali resistance, wear resistance and four-season flexibility, and is embedded with spiral elastic steel wires to further improve the strength and the bending resistance of the sheath. The inner wall of the insulating sheath is smooth and transparent, and the state of the internal annealed copper wire can be clearly seen. The transparent sheath can not only effectively protect the insulating layer but also can not prevent constructors from checking the state of the annealed copper wires. The implementation is simple, the transparent sheaths are directly sleeved at the two ends of the annealed copper wires, and the installation is simple and easy. The improved 10 kV overhead line grounding wire is applied to high voltage level, and in consideration of safety and reliability, the embodiment entrusts a third party to carry out professional detection and obtain a detection report, so that the detection result is qualified. With the adoption of the embodiment, the damage rate of the 10 kV overhead line ground wire is obviously reduced.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (5)
1. The utility model provides a reduce damaged earth connection of insulating layer, distribution lines earth connection include three insulating bar, a plurality of strand annealed copper lines, a earth bar, and three insulating bar are connected its characterized in that through annealed copper line and earth bar respectively: including polyvinyl chloride insulating sheath and protection spring, polyvinyl chloride insulating sheath cover is established in protection spring's the outside, and protection spring is around establishing the outside of annealed copper line in the distribution lines earth connection, protection spring's length is less than polyvinyl chloride insulating sheath's length, set up a pair of connecting hole along polyvinyl chloride insulating sheath central symmetry arrangement on the outer wall of polyvinyl chloride insulating sheath one end, the annealed copper conductor passes through bolted connection with insulating action bars junction, and the annealed copper conductor also passes through bolted connection with the earth bar junction, and all bolts all run through the connecting hole that corresponds, the bolt passes through the metallic conductor intercommunication with the protection spring that corresponds.
2. The ground wire with reduced insulation layer breakage of claim 1, wherein: the length of the polyvinyl chloride insulating sheath is 20cm, the thickness of the polyvinyl chloride insulating sheath is 0.4cm, the inner diameter of the polyvinyl chloride insulating sheath is 1.6cm, and the distance between a connecting hole in the polyvinyl chloride insulating sheath and the end part of the polyvinyl chloride insulating sheath is 0.6 cm.
3. The ground wire with reduced insulation layer breakage according to claim 1 or 2, characterized in that: the polyvinyl chloride insulating sheaths are transparent polyvinyl chloride insulating sheaths.
4. The ground wire with reduced insulation layer breakage of claim 1, wherein: the bolt penetrates through the two connecting holes to be connected with the grounding rod or the insulating operating rod, the soft copper conductor is wound on a screw rod of the bolt, and the end part of the protection spring is abutted to the bolt.
5. The ground wire with reduced insulation layer breakage of claim 4, wherein: and the end part of the protection spring is bent and then wound on the screw rod of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922311252.7U CN211404096U (en) | 2019-12-20 | 2019-12-20 | Ground wire capable of reducing damage of insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922311252.7U CN211404096U (en) | 2019-12-20 | 2019-12-20 | Ground wire capable of reducing damage of insulating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211404096U true CN211404096U (en) | 2020-09-01 |
Family
ID=72233004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922311252.7U Expired - Fee Related CN211404096U (en) | 2019-12-20 | 2019-12-20 | Ground wire capable of reducing damage of insulating layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211404096U (en) |
-
2019
- 2019-12-20 CN CN201922311252.7U patent/CN211404096U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20201220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |