CN220553305U - Insulation reinforcing device for empty bare conductor of overhead transmission line - Google Patents
Insulation reinforcing device for empty bare conductor of overhead transmission line Download PDFInfo
- Publication number
- CN220553305U CN220553305U CN202322011214.6U CN202322011214U CN220553305U CN 220553305 U CN220553305 U CN 220553305U CN 202322011214 U CN202322011214 U CN 202322011214U CN 220553305 U CN220553305 U CN 220553305U
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- Prior art keywords
- insulation
- sleeve
- protection sleeve
- transmission line
- clamping
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- 238000009413 insulation Methods 0.000 title claims abstract description 135
- 239000004020 conductor Substances 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 14
- 230000002708 enhancing effect Effects 0.000 claims description 11
- 229920002379 silicone rubber Polymers 0.000 claims description 11
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 4
- 239000002861 polymer material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 238000009422 external insulation Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- -1 dimethyl siloxane Chemical class 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000005770 birds nest Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 235000005765 wild carrot Nutrition 0.000 description 1
Abstract
The utility model discloses an insulation reinforcing device for an empty bare conductor of an overhead transmission line, which comprises an insulation protection sleeve, an insulation medium sleeve and a conductor, wherein the insulation medium sleeve is positioned between the insulation protection sleeve and the conductor, the insulation medium sleeve wraps the conductor, the insulation protection sleeve is wrapped on the outer surface of the insulation medium sleeve, the insulation protection sleeve is provided with an opening parallel to the insulation protection sleeve, the outer side of the opening is provided with a buckle structure, the insulation medium sleeve comprises an insulation sleeve and an insulation filler, the insulation sleeve is provided with a notch, and the insulation filler is embedded into the notch of the insulation sleeve. The utility model carries out external insulation enhancement treatment on the part of the exposed overhead conductor which needs to be subjected to insulation treatment, can play a role in wrapping and protecting the insulation medium by arranging the insulation protection sleeve, can effectively improve the safety protection of the power line, and avoids serious safety accidents caused by external discharge of the line due to the approach or the entering of external objects.
Description
Technical Field
The utility model relates to the technical field of insulation reinforcing devices, in particular to an insulation reinforcing device for an empty bare conductor of an overhead transmission line.
Background
In an electric power system, in order to reduce the load and facilitate factors such as heat dissipation, an overhead line of a power transmission line often adopts a bare conductor, and in the actual operation process, as the surface of the power transmission and transformation overhead bare conductor is not subjected to insulation treatment, single-phase grounding or three-phase short circuit risks are easy to occur at some positions. Such as: an overhead exposed bus in the transformer substation, in particular to a steel beam of a portal frame and a reverse bow bare conductor below the overhead exposed bus, which are easy to generate single-phase grounding even cause three-phase short circuit faults due to insufficient safety distance caused by floating objects, bird nests or large birds approaching; overhead conductors in cities, overhead conductors with black spots damaged by external forces, and the like, which are possibly damaged by floaters or external forces, endanger the safe operation of the overhead lines and seriously endanger the safe operation of a power grid.
In the prior art, an insulating tape is used for binding the exposed part, the voltage withstand level of a single-layer insulating tape is only 380V, but the voltage class of an overhead insulating wire is 10kV generally, 26 layers of insulating tapes need to be wound to withstand the voltage of 10kV, and the insulating tape is generally used indoors because of poor atmospheric aging resistance, if the insulating tape is exposed in the atmospheric environment for a long time, the insulating tape can be opened in summer, chapped in winter, the insulating performance can be greatly reduced, the insulating tape needs to be replaced, and live working is required for replacing the insulating tape, so that the risk of operation is high.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides the insulation reinforcing device which wraps the wire with the insulation reinforcing device, performs external insulation reinforcing treatment on part of the exposed overhead wire needing insulation treatment, has good insulation and sealing effects through arranging the insulation medium sleeve, meets the requirements of safety targets, improves the safe operation level of a power grid, has good weather resistance, can be used outdoors for a long time without generating cracking, has great change of hardness and other ageing phenomena, can cover and protect the insulation medium through arranging the insulation protective sleeve, has a buckling structure, is convenient to install, avoids replacing an insulation tape, and also avoids risks brought by live working.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an insulation reinforcing device for empty bare conductor of overhead transmission line, insulation reinforcing device includes insulation protection sleeve, insulating medium cover, wire, insulating medium cover is located between insulation protection sleeve and the wire, insulating medium cover parcel is lived the wire, insulation protection sleeve parcel is at the surface of insulating medium cover, insulation protection sleeve is equipped with the opening parallel with insulation protection sleeve, the open-ended outside is equipped with buckle structure or connecting band structure, insulating medium cover includes insulation cover and insulation filler, the breach has been seted up to the insulation cover, insulation filler embeds the breach of insulation cover and takes the form sealed insulation cover body.
Further, the insulating sleeve is made of organic polymer materials such as methyl vinyl silicone rubber, and the insulating filler is made of liquid silicone rubber special for electric power.
Further, the buckle structure comprises a clamping block and a clamping groove matched with the clamping block in shape, the clamping block is axially arranged along the insulation protection sleeve and extends from one end of the insulation protection sleeve to the other end of the insulation protection sleeve, and the clamping block is inserted into the clamping groove so as to fasten an opening of the insulation protection sleeve.
Further, the insulating protective sleeve is made of a bent soft insulating material.
Further, side clamping parts are arranged on two sides of the clamping block, limit fastening parts are arranged on two sides of the clamping groove, and the side clamping parts on two sides of the clamping block are clamped through the limit fastening parts on two sides of the clamping groove after the clamping block is inserted into the clamping groove.
Further, the opening both sides of insulating protection sleeve all are equipped with along insulating protection sleeve radially extending's first fixed block and second fixed block, fixture block and draw-in groove are fixed respectively on first fixed block and second fixed block.
Further, the wire includes a plurality of conductors that are compactly stranded with each other to form a concentric lay.
Compared with the prior art, the utility model has the following beneficial effects:
the insulation reinforcing device comprises an insulation protection sleeve, an insulation medium sleeve and a wire, wherein the insulation medium sleeve is positioned between the insulation protection sleeve and the wire, the wire is wrapped by the insulation medium sleeve, the insulation protection sleeve is wrapped on the outer surface of the insulation medium sleeve, the insulation protection sleeve is provided with an opening parallel to the insulation protection sleeve, the outer side of the opening is provided with a buckling structure or a connecting belt structure, the insulation medium sleeve comprises an insulation sleeve and an insulation filler, the insulation sleeve is provided with a notch, and the insulation filler is embedded into the notch of the insulation sleeve, so that a seamless and sealed insulation sleeve body is formed. The utility model carries out external insulation enhancement treatment on the part of the exposed overhead conductor which needs to be subjected to insulation treatment, can play a good role in insulation and sealing by arranging the insulating medium sleeve, meets the requirements of safety targets, improves the safe operation level of a power grid, has good weather resistance, can not generate aging phenomena such as cracking, great hardness change and the like when used outdoors for a long time, can play a role in wrapping and protecting the insulating medium sleeve by arranging the insulating protective sleeve, can effectively improve the safety protection of a power line, and avoids serious safety accidents caused by external discharge of the line due to the approach or the entering of external objects.
Drawings
Fig. 1 is an overall construction diagram of an insulation enhancing apparatus of the present utility model.
Fig. 2 is a schematic side view of the insulation enhancing apparatus of the present utility model.
Fig. 3 is a schematic cross-sectional view of an insulation enhancing apparatus of the present utility model.
In the figure: the insulation protection sleeve 1, the opening 11, the buckling structure 12, the clamping block 121, the clamping groove 122, the side clamping part 123, the limiting and fastening part 124, the first fixing block 13, the second fixing block 14, the insulation medium sleeve 2, the insulation sleeve 21, the insulation filler 22 and the lead 3.
Detailed Description
The present utility model is described in detail below with reference to the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the principles of the utility model by way of example, and, together with the description, serve to explain the principles of the utility model. In the drawings to which reference is made, the same or similar components in different drawings are denoted by the same reference numerals.
As shown in fig. 1-3, a first embodiment of the present utility model provides an insulation enhancing device for an empty bare conductor 3 of an overhead transmission line, where the insulation enhancing device includes an insulation protecting sleeve 1, an insulation medium sleeve 2, and a conductor 3, the insulation medium sleeve 2 is located between the insulation protecting sleeve 1 and the conductor 3, the insulation medium sleeve 2 wraps the conductor 3, the insulation protecting sleeve 1 wraps the outer surface of the insulation medium sleeve 2, the insulation protecting sleeve 1 is provided with an opening 11 parallel to the insulation protecting sleeve 1, the outside of the opening 11 is provided with a buckle structure 12 or a connecting belt structure, the insulation medium sleeve 2 includes an insulation sleeve 21 and an insulation filler 22, the insulation sleeve 21 is provided with a notch, and the insulation filler 22 is embedded into the notch of the insulation sleeve 21, thereby forming a seamless and sealed insulation sleeve 21 body. According to the utility model, the insulation reinforcing device is wrapped on the wire 3, so that the part of the bare overhead wire 3 needing insulation is subjected to external insulation reinforcing treatment, and the wire 3 is wrapped by the insulation medium sleeve 2, so that good insulation and sealing effects can be achieved, the requirement of a safety target is met, the safe operation level of a power grid is improved, the weather resistance is good, and the aging phenomena such as cracking, great hardness change and the like can not be generated when the insulated overhead wire is used outdoors for a long time. According to the utility model, the insulating medium sleeve 2 and the insulating protective sleeve 1 can tightly wrap the empty bare conductor 3 of the power transmission line, so that single-phase grounding or three-phase short circuit caused by the approach of a floater or a small animal to the power transmission and transformation overhead bare conductor 3 is effectively prevented, the risk of endangering the safe operation of a power grid is avoided, and the operation safety of the power grid is improved.
The insulating sleeve 21 is made of an organic polymer material of methyl vinyl silicone rubber, and the insulating filler 22 is made of liquid silicone rubber special for electric power. Such as: insulating liquid silicone EP530. The insulating sleeve 21 made of organic polymer materials such as methyl vinyl silicone rubber has good high and low temperature resistance, can work for a long time at the temperature of between 50 ℃ below zero and 250 ℃, has excellent moisture resistance, electrical insulation, arc resistance, corona resistance, aging resistance and ozone resistance, and is very suitable for external insulation reinforcing treatment of partial exposed overhead conductors 3 on power distribution networks and power transmission and distribution lines. The surface of the methyl vinyl silicone rubber also has good non-tackiness and hydrophobicity, and the methyl vinyl silicone rubber is mainly formed by copolymerizing dimethyl siloxane and a small amount of vinyl siloxane, and has the characteristics of excellent heat aging resistance and high-temperature compression deformation resistance.
The insulating protective tube 1 of the present utility model is made of a flexible insulating material which is curved, such as: the silicon rubber, the insulating material using the silicon rubber as the base material has better electrical property, keeps the softness of the silicon rubber, and has the characteristics of elasticity, weather resistance, aging resistance and the like.
In particular, the utility model provides a fastening structure 12 comprising a clamping block 121 and a clamping groove 122 matched with the clamping block 121 in shape, wherein the clamping block 121 is axially arranged along an insulation protection sleeve 1 and extends from one end of the insulation protection sleeve 1 to the other end, the clamping block 121 is inserted into the clamping groove 122 to fasten an opening 11 of the insulation protection sleeve 1, in particular, the utility model provides side clamping parts 123 on two sides of the clamping block 121, limit fastening parts 124 on two sides of the clamping groove 122 are arranged on two sides of the clamping groove 122, after the clamping block 121 is inserted into the clamping groove 122, the side clamping parts 123 on two sides of the clamping block 121 are clamped by the limit fastening parts 124 on two sides of the clamping groove 122, so that the clamping block 121 and the clamping groove 122 can be firmly fastened, thereby fastening the opening 11 of the insulation protection sleeve 1, tightly wrapping the insulation protection sleeve 2, ensuring that no gap exists between the insulation protection sleeve 1 and the insulation protection sleeve 2, achieving good insulation and sealing effects.
The utility model is also provided with a first fixed block 13 and a second fixed block 14 which extend along the radial direction of the insulation protection sleeve 1 at two sides of the opening 11 of the insulation protection sleeve 1, and a clamping block 121 and a clamping groove 122 are respectively fixed on the first fixed block 13 and the second fixed block 14.
The conductor 3 of the utility model comprises a plurality of conductors, the conductors are mutually compact to form concentric stranding, and the section of the conductor 3 is in a circular structure.
While the utility model has been described in detail in connection with the present embodiments, the above description is illustrative of the utility model and is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the specific embodiments disclosed herein.
Claims (7)
1. An insulation reinforcing device for an empty bare conductor of an overhead transmission line, which is characterized in that: the insulation reinforcing device comprises an insulation protection sleeve, an insulation medium sleeve and a wire, wherein the insulation medium sleeve is positioned between the insulation protection sleeve and the wire, the wire is wrapped by the insulation medium sleeve, the insulation protection sleeve is wrapped on the outer surface of the insulation medium sleeve, the insulation protection sleeve is provided with an opening parallel to the insulation protection sleeve, the outside of the opening is provided with a buckling structure, the insulation medium sleeve comprises an insulation sleeve and an insulation filler, the insulation sleeve is provided with a notch, and the insulation filler is embedded into the notch of the insulation sleeve to form a sealed insulation sleeve body.
2. The insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 1, wherein: the insulating sleeve is made of an organic polymer material of methyl vinyl silicone rubber, and the insulating filler is made of liquid silica gel special for electric power.
3. The insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 1, wherein: the clamping structure comprises a clamping block and a clamping groove matched with the clamping block in shape, the clamping block is axially arranged along the insulating protection sleeve and extends from one end of the insulating protection sleeve to the other end of the insulating protection sleeve, and the clamping block is inserted into the clamping groove so as to fasten an opening of the insulating protection sleeve.
4. The insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 1, wherein: the insulation protection sleeve is made of a bent soft insulation material.
5. An insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 3, wherein: the clamping block is characterized in that side clamping parts are arranged on two sides of the clamping block, limit fastening parts are arranged on two sides of the clamping groove, and the side clamping parts on two sides of the clamping block are clamped through the limit fastening parts on two sides of the clamping groove after the clamping block is inserted into the clamping groove.
6. An insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 3, wherein: the insulation protection sleeve is characterized in that a first fixing block and a second fixing block which extend along the radial direction of the insulation protection sleeve are arranged on two sides of the opening of the insulation protection sleeve, and the clamping block and the clamping groove are respectively fixed on the first fixing block and the second fixing block.
7. The insulation enhancing apparatus for an empty bare conductor of an overhead transmission line according to claim 1, wherein: the wire includes a plurality of conductors that are compactly stranded with each other to form a concentric lay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322011214.6U CN220553305U (en) | 2023-07-28 | 2023-07-28 | Insulation reinforcing device for empty bare conductor of overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322011214.6U CN220553305U (en) | 2023-07-28 | 2023-07-28 | Insulation reinforcing device for empty bare conductor of overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220553305U true CN220553305U (en) | 2024-03-01 |
Family
ID=90008353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322011214.6U Active CN220553305U (en) | 2023-07-28 | 2023-07-28 | Insulation reinforcing device for empty bare conductor of overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220553305U (en) |
-
2023
- 2023-07-28 CN CN202322011214.6U patent/CN220553305U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |