CN217239108U - Resistance to compression tensile power cable who easily lays - Google Patents
Resistance to compression tensile power cable who easily lays Download PDFInfo
- Publication number
- CN217239108U CN217239108U CN202220199049.4U CN202220199049U CN217239108U CN 217239108 U CN217239108 U CN 217239108U CN 202220199049 U CN202220199049 U CN 202220199049U CN 217239108 U CN217239108 U CN 217239108U
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- China
- Prior art keywords
- steel wire
- layer
- compression
- power cable
- armor
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- Expired - Fee Related
Links
- 230000006835 compression Effects 0.000 title claims abstract description 22
- 238000007906 compression Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 49
- 238000010276 construction Methods 0.000 abstract description 5
- 239000011241 protective layer Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 241000257303 Hymenoptera Species 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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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- Insulated Conductors (AREA)
Abstract
The invention provides a compression-resistant tensile power cable easy to lay, which comprises a cable core, and an inner protective layer structure, an armor structure and an outer protective layer structure which are sequentially coated on the outer side of the cable core from inside to outside; the armor structure comprises a first steel wire armor layer and a second steel wire armor layer, and the twisting direction of steel wires in the first steel wire armor layer is opposite to that of steel wires in the second armor layer; the cable core comprises a bag belt and a plurality of insulated single wires which are twisted with each other on the inner side of the bag belt, and fillers are filled among the insulated single wires and the bag belt; the insulated single wire comprises a conductor and an insulating layer outside the conductor. In the power cable provided by the invention, the armor structure adopts double-layer and forward and reverse crossed stranded steel wire armor, so that the requirements on longitudinal tensile strength and radial compressive strength can be met. The structure stability is good, and is pleasing to the eye, area is little, and tensile compressive property is good, easily construction, long service life.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a compression-resistant tensile power cable easy to lay.
Background
In the process of building the electric power system, in order to avoid influencing the existing buildings and living areas, remote areas or areas which are not easy to touch in daily life are selected, the areas are often very complex in environment and often have the condition of large fall and severe working conditions, and the requirements on the tensile and compressive properties of the cable are high in the process of laying and using. Moreover, when the existing cable is armored by a steel belt, the cable only can play a compression-resistant effect, and when armored by a steel wire, the cable only can play a tensile effect, so that the tensile and compression-resistant performances of the cable are hardly considered, the use reliability of the cable cannot be well guaranteed, and the service life of the cable is not ideal.
Disclosure of Invention
In view of this, the present invention provides a compression-resistant tensile power cable which is easy to lay, and aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a compression-resistant tensile power cable easy to lay comprises a cable core, and an inner protection layer structure, an armor structure and an outer protection layer structure which are sequentially coated on the outer side of the cable core from inside to outside; the armor structure comprises a first steel wire armor layer and a second steel wire armor layer, the outer sides of the first steel wire armor layer and the second steel wire armor layer are bound by reverse binding steel belts, and the twisting direction of steel wires in the first steel wire armor layer is opposite to that of steel wires in the second armor layer; the cable core comprises a bag belt and a plurality of insulated single wires which are twisted with each other at the inner side of the bag belt, and fillers are filled among the insulated single wires and the bag belt; the insulated single wire comprises a conductor and an insulating layer outside the conductor.
Further, the inner jacket structure includes an inner jacket.
Further, the inner sheath is made of high-density polyethylene.
Further, the outer jacket structure comprises an outer jacket.
Further, the outer sheath is made of high-density polyethylene.
Further, the cable core comprises four insulated single wires.
Furthermore, the filler is made of glass fiber ropes.
Furthermore, the first steel wire armor layer and the second steel wire armor layer both adopt galvanized steel wires.
Compared with the prior art, the invention has the following advantages:
in the power cable provided by the invention, the armor structure adopts double-layer and forward and reverse crossed stranded steel wire armor, so that the requirements on longitudinal tensile strength and radial compressive strength can be met. The structure stability is good, and is pleasing to the eye, area is little, and tensile compressive property is good, easily construction, long service life, and operational reliability is secure, and product preparation and construction use cost are low.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic structural diagram of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A compression-resistant tensile power cable easy to lay comprises a cable core, and an inner protection layer structure, an armor structure and an outer protection layer structure which are sequentially coated on the outer side of the cable core from inside to outside, as shown in figure 1; the armor structure includes first steel wire armor 1 and second steel wire armor 2, and the first steel wire armor outside is binded by first turn-ups steel band 3, and the second steel wire armor outside is binded by second turn-ups steel band 4. By way of example, galvanized steel wires are used for the first steel wire armor layer and the second steel wire armor layer. It should be noted that the reverse binding steel belt can adopt the existing steel binding belt, as long as the binding of the armor layer is kept firm, and the structure of the outer side armor layer is not influenced. The outside of each steel wire armor layer adopts a layer of clearance type reverse binding steel belt, which not only plays the purposes of fixing and binding steel wires and preventing looseness, but also plays a certain compression resistance role, and improves the compression resistance and impact resistance of the cable.
During production, the first steel wire armor layer is twisted by steel wires in a Z-direction twisting mode, and the second steel wire armor layer is twisted by steel wires in an S-direction twisting mode. That is, the steel wire twisting direction in the first steel wire armor layer is opposite to the steel wire twisting direction in the second armor layer. This kind of armor structure adopts bilayer, positive and negative alternately stranded structural design, and the main effect lies in: 1. the longitudinal tensile strength of the steel wire armor is greatly enhanced by adopting double layers of steel wires for armor. 2. The steel wire adopts "S", "Z" positive and negative, alternately transposition, can make the steel wire between double-deck steel wire layer and the layer form one deck steel wire cross net, avoids only having the big effect of tensile strength under the both sides steel wire syntropy condition, adopts alternately armor can form the cross net between layer and the layer, has strengthened the compressive capacity of cable greatly, protection power unit that can be better, improves cable life, guarantees the stability of cable work.
The space between the insulated single wires and the wrapping tape are filled with the filler 6, for example, the filler is a glass fiber rope. The cable structure has high overall stability and strong compression resistance and mechanical impact resistance. In addition, in an optional embodiment, a ceramic silicon fireproof layer can be arranged between the wrapping belt of the cable core and the armor structure, and in a normal use state, the ceramic silicon fireproof layer can further improve the compression resistance, impact resistance and tensile resistance of the cable, so that even if a fire disaster occurs, the ceramic silicon rubber can form a hard ceramic shell in an open fire, and the hard shell is not melted and does not drip in a fire disaster environment, so that a firm protection effect is achieved.
Typically, the inner sheath structure comprises an inner sheath 9. By way of example, the inner sheath may be a high density polyethylene sheath. The outer sheath structure includes an outer sheath 10, which may be, for example, a high density polyethylene sheath. The inner and outer protective layer structures can effectively prevent damage of rats and ants to the cable, and the material belongs to an environment-friendly material, cannot pollute the surrounding environment, and is beneficial to improving the compression resistance and impact resistance of the cable.
The cable core comprises a wrapping tape 5 and a plurality of insulated single wires which are twisted with each other on the inner side of the wrapping tape, and each insulated single wire comprises a conductor 7 and an insulating layer 8 on the outer side of the conductor. The insulating layer is made of polyvinyl chloride materials, cross-linked polyethylene materials or low-smoke halogen-free materials which meet the national standard and have excellent performance, and the insulating performance of the cable is effectively guaranteed. In an alternative embodiment, the cable core comprises four insulated single wires, the four insulated single wires are twisted with each other, the structural stability is good, and the cable core is not easy to loosen due to the protection of an armored structure.
In order to improve the corrosion resistance of the steel wire in the armor structure, in an optional embodiment, an anticorrosion structure is arranged on the outer side of the second steel wire armor layer, specifically, the anticorrosion structure comprises a layer of polypropylene rope wound on the outer side of the second steel wire armor layer, and an asphalt anticorrosion layer is coated on the outer side of a base layer formed by the polypropylene rope, namely, the anticorrosion structure comprises a base layer formed by winding the polypropylene rope, the twisting direction of the polypropylene rope in the base layer is opposite to that of the steel wire of the second steel wire armor layer, a coarse and compact structure can be formed outside the steel wire for uniformly coating an anticorrosion material, the adhesion capacity of the anticorrosion material is greatly improved, the adhesion effect of the anticorrosion material is good, the corrosion resistance of the cable is reliably ensured, moisture and rainwater are prevented from entering the corrosion steel wire, even if the outer sheath is damaged to a certain extent, the steel wire armor layer cannot be directly exposed in a corrosive environment, has obvious cable protection effect and effectively prolongs the service life of the cable.
In the power cable provided by the invention, the armor structure adopts double-layer and forward and reverse cross stranded steel wire armor, so that the requirements on longitudinal tensile strength and radial compressive strength can be met. The structure stability is good, and is pleasing to the eye, area is little, and tensile compressive property is good, easily construction, long service life, and operational reliability is secure, and product preparation and construction use cost are low.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a power cable that resistance to compression tensile was easily laid which characterized in that: the cable comprises a cable core, and an inner protection layer structure, an armor structure and an outer protection layer structure which are sequentially coated on the outer side of the cable core from inside to outside;
the armor structure comprises a first steel wire armor layer and a second steel wire armor layer, the outer sides of the first steel wire armor layer and the second steel wire armor layer are bound by a reverse binding steel belt, and the twisting direction of steel wires in the first steel wire armor layer is opposite to that of steel wires in the second armor layer;
the cable core comprises a bag belt and a plurality of insulated single wires which are twisted with each other on the inner side of the bag belt, and fillers are filled among the insulated single wires and the bag belt; the insulated single wire comprises a conductor and an insulating layer outside the conductor.
2. The compression-resistant, tension-resistant and easy-to-lay power cable according to claim 1, wherein: the inner jacket structure includes an inner jacket.
3. The compression-resistant tensile easy-to-lay power cable according to claim 2, wherein: the inner sheath is made of high-density polyethylene.
4. The compression-resistant, tension-resistant and easy-to-lay power cable according to claim 1, wherein: the outer jacket structure includes an outer jacket.
5. The compression-resistant tensile easy-to-lay power cable according to claim 4, wherein: the outer sheath is made of high-density polyethylene.
6. The compression-resistant tensile easy-to-lay power cable according to claim 1, wherein: the cable core comprises four insulated single wires.
7. The compression-resistant tensile easy-to-lay power cable according to claim 1, wherein: the filler is made of glass fiber ropes.
8. The compression-resistant tensile easy-to-lay power cable according to claim 1, wherein: the first steel wire armor layer and the second steel wire armor layer are made of galvanized steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220199049.4U CN217239108U (en) | 2022-01-25 | 2022-01-25 | Resistance to compression tensile power cable who easily lays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220199049.4U CN217239108U (en) | 2022-01-25 | 2022-01-25 | Resistance to compression tensile power cable who easily lays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217239108U true CN217239108U (en) | 2022-08-19 |
Family
ID=82832563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220199049.4U Expired - Fee Related CN217239108U (en) | 2022-01-25 | 2022-01-25 | Resistance to compression tensile power cable who easily lays |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217239108U (en) |
-
2022
- 2022-01-25 CN CN202220199049.4U patent/CN217239108U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220819 |