CN213635499U - Novel corrosion-resistant termite-proof high-voltage cable - Google Patents
Novel corrosion-resistant termite-proof high-voltage cable Download PDFInfo
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- CN213635499U CN213635499U CN202023200895.3U CN202023200895U CN213635499U CN 213635499 U CN213635499 U CN 213635499U CN 202023200895 U CN202023200895 U CN 202023200895U CN 213635499 U CN213635499 U CN 213635499U
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Abstract
The utility model discloses a novel corrosion-resistant termite-proof high-voltage cable, which comprises a cable core; the semi-conducting belt and the extruded conductor shielding layer are wrapped outside the cable core; the insulating layer is wrapped outside the cable core; the insulating shielding layer is wrapped outside the insulating layer; the shielding layer of the copper wire is arranged outside the insulating shielding layer, and water blocking buffer layers are arranged between the shielding layer of the copper wire and the insulating shielding layer and on the outer surface of the shielding layer of the copper wire; the alloy lead sheath layer is wrapped outside the water-blocking buffer layer on the outer surface of the copper wire shielding layer; the armor layer is wrapped outside the alloy lead sleeve layer; and the outer protective layer is wrapped outside the armor layer. The utility model discloses salt fog resistant adverse circumstances corrosion's performance that has superstrong termite resistance ability and high strength, the wide application is many in the termite, coastal high salt fog area, the chemical engineering project in desert area.
Description
Technical Field
The utility model relates to a power cable technical field, concretely relates to novel corrosion-resistant termite-proof high tension cable.
Background
High-voltage and extra-high-voltage cables are one type of power cables, are power cables used for transmitting between 66kV and 500kV, and are widely applied to power transmission and distribution. At present, in order to ensure the bending performance of the cable, the common domestic high-voltage cable structure only adopts a water-blocking buffer layer, a corrugated aluminum sheath and an outer sheath to protect the internal structure of the cable.
The high-voltage cable in the prior art can be suitable for areas with mild weather conditions, but in coastal areas, desert areas or areas with more termites, the high-voltage cable has a performance short plate which can not protect termites and prevent salt mist corrosion, so the high-voltage cable is not long in service life generally and cannot be popularized and used.
Therefore, it is necessary to develop a new corrosion-resistant termite-proof high-voltage cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel corrosion-resistant termite-proof high tension cable to high tension cable who solves among the prior art has the performance short slab that can't protect termite and prevent salt fog corrosion, and general life is not high when coastal area, desert area or the more area of termite use, technical problem that can't the wide use.
In order to realize the purpose, the technical scheme of the utility model is that:
a novel corrosion-resistant termite-resistant high-voltage cable comprising:
a cable core;
the semi-conducting belt is wrapped outside the cable core;
the extruded conductor shielding layer is extruded outside the semi-conductive belt;
the insulating layer is wrapped outside the extruded conductor shielding layer;
the insulating shielding layer is wrapped outside the insulating layer;
the shielding layer of the copper wire is arranged outside the insulating shielding layer, and water blocking buffer layers are arranged between the shielding layer of the copper wire and the insulating shielding layer and on the outer surface of the shielding layer of the copper wire;
the alloy lead sheath layer is wrapped outside the water-blocking buffer layer on the outer surface of the copper wire shielding layer;
the armor layer is wrapped outside the inner sheath layer;
and the outer protective layer wraps the outer part of the anticorrosive layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the double-layer water-blocking buffer layer, and the copper wire shielding layer is arranged between the two water-blocking buffer layers, the copper wire shielding layer can share the fault current of the cable system, and simultaneously the mechanical property of the high-voltage cable can be enhanced; the structural design of the two water-blocking buffer layers meets the mechanical impact of the copper wire on the insulation shield, and meanwhile, the two water-blocking buffer layers have excellent longitudinal waterproof performance;
2. the alloy lead sheath layer of the utility model has radial waterproof performance and super corrosion resistance, so that the cable has strong corrosion resistance and waterproof performance, and meanwhile, the alloy lead sheath layer can also bear a certain amount of system fault current;
3. the utility model arranges the armor layer in the outer protective layer to effectively prevent the influence of white ants;
4. the utility model discloses have superstrong termite resistance ability and the salt spray resistance of high strength and be able to bear or endure the adverse circumstances corrosion's performance, the wide application is many in the termite, the chemical engineering project in coastal area desert area.
5. The utility model discloses the conductor shield is carried out with crowded package conductor shielding layer in the semi-conductive area, and crowded package conductor shielding layer adopts super smooth semi-conductive shielding material, and the inhomogeneous electric field that produces because the conductor is not round can be homogenized better.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
furthermore, the conductor is formed by cabling a plurality of separation conductors, and the separation conductors are formed by twisting a plurality of wires.
By adopting the scheme, the skin effect of the large-section circular copper conductor can be reduced, so that the copper conductor with the same weight has more excellent conductor resistance.
Further, the insulating layer is an ultra-pure crosslinked polyethylene insulating layer.
By adopting the scheme, the ultra-pure crosslinked polyethylene insulating layer is subjected to high-temperature and high-pressure crosslinking, so that the linear structure of the polyethylene is converted into a spatial three-dimensional structure, the mechanical strength and the electrical property are greatly improved, the power system with the corresponding voltage grade can be endured through strict rechecking calculation, and the insulation stability is reliable.
Further, an inner sheath layer is arranged between the alloy lead sheath layer and the armor layer.
By adopting the scheme, the inner sheath layer is adopted to protect the alloy lead sheath from being damaged by external mechanical force.
Furthermore, an anti-corrosion layer is arranged between the armor layer and the outer protective layer.
Through adopting above-mentioned scheme, the anticorrosive coating effect is for preventing the copper strips by moisture corruption, has the effect of bearing partial fault current of circuit simultaneously.
Further, the outer protection layer comprises an inner outer sheath layer and an outer graphite conducting layer.
By adopting the scheme, the outer sheath layer prevents environmental corrosion and moisture from invading; the outermost layer is arranged to be the graphite conducting layer, and the graphite conducting layer is mainly used for facilitating electrical performance tests and routine circuit inspection tests after the project installation is finished.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Shown in the figure:
1. a cable core;
2. a semiconducting tape;
3. extruding a conductor shielding layer;
4. an insulating layer;
5. an insulating shield layer;
6. a copper wire shielding layer;
7. an alloy lead sheath layer;
8. an armor layer;
9. an inner jacket layer;
10. an anticorrosive layer;
11. an outer jacket layer;
12. a graphite conductive layer;
13. a water-blocking buffer layer.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the corrosion-resistant termite-proof high-voltage cable provided by this embodiment includes a cable core 1, the cable core 1 is formed by cabling five separation conductors, and the separation conductors are formed by twisting a plurality of second-type copper wires, so that the skin effect of a large-section round copper conductor can be reduced, and the copper conductor with the same weight has more excellent conductor resistance.
The cable core 1 is sequentially wrapped with a semi-conducting belt 2 and an extruded conductor shielding layer 3.
The semi-conductive belt 2 and the extruded conductor shielding layer 3 are used for conducting shielding, and the extruded conductor shielding layer 3 is made of ultra-smooth semi-conductive shielding materials, so that the non-uniform electric field generated by the conductor out-of-round can be well homogenized.
The extruded conductor shielding layer 3 is wrapped by an insulating layer 4, and the insulating layer 4 is an ultra-pure cross-linked polyethylene insulating layer 4 with the thickness of 20 mm.
The ultra-pure crosslinked polyethylene insulating layer 4 is subjected to high-temperature and high-pressure crosslinking, so that a linear structure of polyethylene is converted into a spatial three-dimensional structure, the mechanical strength and the electrical property are greatly improved, the ultra-pure crosslinked polyethylene insulating layer can tolerate an electric power system with a corresponding voltage grade through strict rechecking calculation, and the insulation stability is reliable.
An insulation shielding layer 5 is wrapped outside the insulation layer 4, and the insulation shielding layer 5 is made of a super-smooth semi-conductive shielding material.
The insulating shielding layer 5 is wrapped by a copper wire shielding layer 6, a water blocking buffer layer 13 is arranged between the copper wire shielding layer 6 and the insulating shielding layer 5 and on the outer surface of the copper wire shielding layer 6, and the water blocking buffer layer 13 is a semi-conductive buffering water blocking strip.
The water blocking buffer layer 13 on the outer surface of the copper wire shielding layer 6 is wrapped with the alloy lead sheath layer 7, and the alloy lead sheath layer 7 is made of lead alloy materials and has radial waterproof performance and super corrosion resistance.
The alloy lead sheath layer 7 is wrapped by an inner sheath layer 9, and the inner sheath layer 9 is made of polyolefin materials and used for protecting the alloy lead sheath from being damaged by external mechanical force.
The armor layer 8 is wrapped outside the inner sheath layer 9, and the armor layer 8 is supported by a copper strip with the thickness not less than 0.10mm, so that the influence of termites is effectively prevented.
The inner sheath layer 9 is wrapped by an anticorrosive coating 10, and the anticorrosive coating 10 is made of asphalt anticorrosive materials and has the function of preventing the copper strip from being corroded by moisture.
The anticorrosion layer 10 is wrapped by an outer protective layer, and the outer protective layer comprises an inner outer sheath layer 11 and an outer graphite conductive layer 12.
The outer sheath layer 11 adopts a polyolefin sheath to prevent environmental corrosion and moisture from invading; the outermost layer is arranged as the graphite conducting layer 12, and the main function is to facilitate the electrical performance test and the routine circuit inspection test after the project installation is finished.
In the embodiment, double water-blocking buffer layers 13 are adopted, and the copper wire shielding layer 6 is arranged between the two water-blocking buffer layers 13, so that the copper wire shielding layer 6 can share the fault current of a cable system and can also enhance the mechanical property of the high-voltage cable; the structural design of the two water-blocking buffer layers meets the mechanical impact of the copper wire on the insulation shield, and meanwhile, the two water-blocking buffer layers have excellent longitudinal waterproof performance;
the alloy lead sheath layer 7 has radial waterproof performance and super-strong corrosion resistance, so that the cable has strong corrosion resistance and waterproof performance, and meanwhile, the alloy lead sheath layer 7 can also bear a certain amount of system fault current;
in the embodiment, the armor layer 8 is arranged in the outer protective layer, so that the influence of termites can be effectively prevented;
the embodiment has super-strong termite-proof performance and high-strength salt fog and severe environment corrosion resistance, and is widely applied to chemical projects in desert areas of coastal areas with more termites.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. A novel corrosion-resistant termite-proof high-voltage cable is characterized by comprising:
a cable core;
the semi-conducting belt is wrapped outside the cable core;
the extruded conductor shielding layer is wrapped outside the semi-conductive belt;
the insulating layer is wrapped outside the extruded conductor shielding layer;
the insulating shielding layer is wrapped outside the insulating layer;
the shielding layer of the copper wire is arranged outside the insulating shielding layer, and water blocking buffer layers are arranged between the shielding layer of the copper wire and the insulating shielding layer and on the outer surface of the shielding layer of the copper wire;
the alloy lead sheath layer is wrapped outside the water-blocking buffer layer on the outer surface of the copper wire shielding layer;
the armor layer is wrapped outside the alloy lead sleeve layer;
and the outer protective layer is wrapped outside the armor layer.
2. The novel corrosion-resistant termite-resistant high-voltage cable as claimed in claim 1, wherein the cable core is formed by cabling a plurality of separated conductors, and the separated conductors are formed by twisting a plurality of wires.
3. The novel corrosion-resistant termite-resistant high voltage cable as claimed in claim 1 wherein the insulation layer is an ultra-pure crosslinked polyethylene insulation layer.
4. The novel corrosion-resistant termite-resistant high-voltage cable according to claim 1, wherein an inner sheath layer is further disposed between the alloy lead sheath layer and the armor layer.
5. The novel corrosion-resistant termite-resistant high-voltage cable according to claim 1, wherein an anti-corrosion layer is further provided between the armor layer and the outer protective layer.
6. The novel corrosion-resistant termite-resistant high-voltage cable according to claim 1, wherein the outer protective layer comprises an inner outer jacket layer and an outer graphite conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023200895.3U CN213635499U (en) | 2020-12-25 | 2020-12-25 | Novel corrosion-resistant termite-proof high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023200895.3U CN213635499U (en) | 2020-12-25 | 2020-12-25 | Novel corrosion-resistant termite-proof high-voltage cable |
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| Publication Number | Publication Date |
|---|---|
| CN213635499U true CN213635499U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023200895.3U Active CN213635499U (en) | 2020-12-25 | 2020-12-25 | Novel corrosion-resistant termite-proof high-voltage cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117936181A (en) * | 2024-02-20 | 2024-04-26 | 成都川缆电缆有限公司 | Corrosion-resistant long-life environment-friendly high-voltage cable |
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2020
- 2020-12-25 CN CN202023200895.3U patent/CN213635499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117936181A (en) * | 2024-02-20 | 2024-04-26 | 成都川缆电缆有限公司 | Corrosion-resistant long-life environment-friendly high-voltage cable |
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