CN220171800U - Medium-voltage flexible cable - Google Patents
Medium-voltage flexible cable Download PDFInfo
- Publication number
- CN220171800U CN220171800U CN202321278986.XU CN202321278986U CN220171800U CN 220171800 U CN220171800 U CN 220171800U CN 202321278986 U CN202321278986 U CN 202321278986U CN 220171800 U CN220171800 U CN 220171800U
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- Prior art keywords
- layer
- cable
- sheath
- copper
- conductor
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 44
- 239000010949 copper Substances 0.000 claims abstract description 44
- 239000004020 conductor Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract 4
- 239000000463 material Substances 0.000 claims description 22
- 238000004049 embossing Methods 0.000 claims description 19
- 229920000098 polyolefin Polymers 0.000 claims description 19
- 229920000742 Cotton Polymers 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 238000009940 knitting Methods 0.000 claims description 13
- 239000004677 Nylon Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 229920001778 nylon Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims 3
- 238000005452 bending Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 54
- 239000011241 protective layer Substances 0.000 description 17
- 239000002250 absorbent Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 241000257303 Hymenoptera Species 0.000 description 4
- 241000699670 Mus sp. Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- -1 005 Substances 0.000 description 1
- MIFOMMKAVSCNKQ-HWIUFGAZSA-N Metaflumizone Chemical compound C1=CC(OC(F)(F)F)=CC=C1NC(=O)N\N=C(C=1C=C(C=CC=1)C(F)(F)F)\CC1=CC=C(C#N)C=C1 MIFOMMKAVSCNKQ-HWIUFGAZSA-N 0.000 description 1
- 239000005914 Metaflumizone Substances 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a medium-voltage flexible cable, which belongs to the field of cables and comprises a copper conductor, a cable outer layer and a graphite semi-conductive layer, wherein the cable outer layer is wrapped on the outer surface of the copper conductor and comprises a conductor shielding layer, an insulating shielding layer, a water blocking layer, an embossed copper sheath protecting layer and an outer protecting layer; the cable disclosed by the utility model has a reasonable and simple structure, and the outer layer of the cable is soft and flexible in structure and resistant to bending, so that the ageing resistance and weather resistance of the cable can be improved, and the cable can stably run for a long time under various severe weather conditions.
Description
Technical field:
the utility model relates to the field of cables, in particular to a medium-voltage flexible cable.
The background technology is as follows:
at present, the power transmission technology mainly uses the alternating current transmission technology, but when long-distance transmission is carried out, the alternating current technology has the following problems: 1. the existence of capacitive reactance and inductive reactance causes large line loss during power transmission; 2. the alternating current cable is limited by the transmission distance, so that relay is needed in the conveying process, and the construction investment is relatively high; 3. the cable has poor flexibility, insufficient impact resistance and easy damage after being paved; 4. the cable is easy to be eroded by insects and mice after being paved and used for a long time, and the cable is damaged; 5. the use of insulation and water resistance of the cable is critical, and poor water resistance is one of the key reasons for influencing the service life of the cable. In order to solve the problems, the gradual development and application of the direct current transmission technology are ensured. The utility model provides a medium-voltage flexible cable, which aims to solve the defects and the shortcomings existing in the prior art.
The utility model comprises the following steps:
the utility model aims to overcome the defects of the prior art and provide a medium-voltage flexible cable.
The utility model adopts the technical scheme that:
the utility model provides a middling pressure flexible cable, includes copper conductor, cable outer layer and graphite semi-conductive layer, the cable outer parcel in copper conductor surface, the cable outer includes conductor shielding layer, insulating shielding layer, water-blocking layer, embossing copper sheath inoxidizing coating and outer sheath, conductor shielding layer parcel sets up copper conductor surface, conductor shielding layer surface parcel is equipped with the insulating layer, insulating layer surface parcel is equipped with insulating shielding layer, insulating shielding layer surface parcel is equipped with the water-blocking layer, water-blocking layer surface parcel is equipped with embossing copper sheath inoxidizing coating, embossing copper sheath inoxidizing coating surface parcel is equipped with outer sheath, the even coating of graphite semi-conductive layer sets up outer sheath surface.
Preferably, the waterproof layer is composed of a semiconductive nylon belt, water-absorbent resin and knitting cotton, the semiconductive nylon belt is arranged outside the insulating shielding layer, the knitting cotton is arranged on the outer surface of the semiconductive nylon belt, the water-absorbent resin is arranged on the outer surface of the knitting cotton, and the embossing copper sheath protective layer is arranged on the outer surface of the water-absorbent resin.
Preferably, the outer protective layer comprises a first polyolefin sheath material, a fiber fine thread rope, a binder and a second polyolefin sheath material, wherein the first polyolefin sheath material is wrapped with the outer surface of the embossed copper sheath protective layer, the fiber fine thread rope is wound on the outer surface of the first polyolefin sheath material, the outer surface of the fiber fine thread rope is filled with the binder, and finally the outer surface of the fiber fine thread rope is wrapped with the second polyolefin sheath material.
The beneficial effects of the utility model are as follows: the cable has a reasonable and simple structure, and the outer layer of the cable has a soft and bending-resistant structure, so that the ageing resistance and weather resistance of the cable can be improved, and the cable can stably run for a long time under various severe weather conditions; the cable structure of the utility model can effectively prevent external invasion such as water, mice and ants.
Description of the drawings:
fig. 1: the three-dimensional structure of the utility model is schematically shown.
Fig. 2: the structure of the outer protective layer is shown in the schematic drawing.
Fig. 3: the present utility model is schematically illustrated at a in fig. 2.
Fig. 4: the structure of the water-blocking layer is shown in the schematic diagram.
In the figure: 001. copper conductor 002, conductor shielding layer, 003, insulating layer, 004, insulating shielding layer, 005, water-resistant layer, 510, semiconductive nylon belt, 520, water-absorbent resin, 530, knitting cotton, 006, embossing copper sheath protective layer, 007, outer protective layer, 710, polyolefin sheath material one, 720, fiber fine thread, 730, binder, 740, polyolefin sheath material two, 008, graphite semiconductive layer.
The specific embodiment is as follows:
the drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1-4, the medium voltage flexible cable comprises a copper conductor 001, a cable outer layer and a graphite semiconductive layer 008, wherein the copper conductor 001 is made of an annealed copper second type conductor, and meanwhile, in order to ensure the roundness of the copper conductor 001, molded lines are adopted for splicing and twisting, the compression coefficient of the copper conductor 001 is high, the copper conductor is round and smooth in surface, and the electric field around the copper conductor 001 is more uniform, so that the service life of the cable can be prolonged; meanwhile, the copper conductor 001 is filled with water-blocking yarns among the monofilaments when being twisted, and moisture can be effectively prevented from entering along the axial directions of gaps among the monofilaments when the cable is wetted or water enters. The cable outer layer is wrapped on the outer surface of the copper conductor 001, and comprises a conductor shielding layer 002, an insulating layer 003, an insulating shielding layer 004, a water-resisting layer 005, an embossing copper sheath protection layer 006 and an outer protection layer 007, wherein the conductor shielding layer 002 is wrapped on the outer surface of the copper conductor 001, and the conductor shielding layer 002 and the insulating shielding layer 004 can be used for homogenizing electric fields around the copper conductor 001 and an insulating wire core; the outer surface of the conductor shielding layer 002 is wrapped with an insulating layer 003, the insulating layer 003 is made of ethylene propylene diene monomer rubber, and the ethylene propylene diene monomer rubber is softer, excellent in long-term aging resistance and weather resistance and softer; the insulating layer 003 surface parcel is equipped with insulating shield layer 004, insulating shield layer 004 surface parcel is equipped with water-blocking layer 005, and water-blocking layer 005 surface parcel is equipped with embossing copper sheath inoxidizing coating 006, and embossing copper sheath inoxidizing coating 006 can strengthen the shock resistance and the bending flexibility degree of cable, and embossing copper sheath inoxidizing coating 006 is that embossing copper sheath is indulged to wrap, weld, embossing back shaping. The embossed copper sheath is tightly welded and can radially block water; the surface of the embossing copper sheath protective layer 006 is smooth and hard, and can prevent insect and ant attack; the embossing structure can ensure that the cable has certain bending flexibility and shock resistance; the embossed copper sheath also has excellent conductivity and can be used as a grounding protection. The surface of the embossing copper sheath protective layer 006 is wrapped with an outer protective layer 007, and the graphite semiconductive layer 008 is uniformly coated on the outer surface of the outer protective layer 007.
The further optimization setting of this scheme is: as shown in fig. 4, the water-blocking layer 005 is composed of a semiconductive nylon belt 510, a water-absorbent resin 520 and knitting cotton 530, the semiconductive nylon belt 510 is arranged outside the insulation shielding layer 004, the knitting cotton 530 is arranged on the outer surface of the semiconductive nylon belt 510, the water-absorbent resin 520 is arranged on the outer surface of the knitting cotton 530, and the embossing copper sheath protection layer 006 is arranged on the outer surface of the water-absorbent resin 520; the water-resistant layer 005 is continuously covered and wrapped by a semiconductive buffer water-resistant belt, and the semiconductive buffer belt is made of semiconductive nylon belt 510, water-absorbent resin 520 and knitting cotton 530; the waterproof layer 005 has good longitudinal waterproof effect, and as the water-absorbent resin 520 is mixed with the knitting cotton 530 after meeting water, a semi-solidified colloid with strong waterproof performance is formed, and moisture is prevented from entering the cable along the axial direction; the waterproof layer 005 still has the cushioning effect, and knitting cotton 530 structure is very fluffy, can effectively reduce the impact of outer structure to insulating sinle silk, can effectively protect copper product conductor 001 when the cable receives the striking moreover, guarantees the rounding smoothness of insulating shielding layer 004, improves the electric field homogenization effect around the cable sinle silk. The water-blocking layer 005 also has the function of homogenizing the electric field, wherein the semiconducting nylon tape 510 can further homogenize the electric field around the core. The weight of the waterproof layer 005 is very light, and the weight of the cable is greatly reduced on the premise of ensuring the performance of the cable.
The further optimization setting of this scheme is: as shown in fig. 2-3, the outer protective layer 007 comprises a first polyolefin sheath material 710, a fiber fine wire 720, a binder 730 and a second polyolefin sheath material 740, wherein the first polyolefin sheath material 710 is wrapped with an outer surface of the embossed copper protective layer 006, the fiber fine wire 720 is wrapped with an outer surface of the first polyolefin sheath material 710, the outer surface of the fiber fine wire 720 is filled with the binder 730, and finally the outer surface of the fiber fine wire 720 is wrapped with the second polyolefin sheath material 740. The polyolefin sheath material I710 and the polyolefin sheath material II 740 are both materials of the metaflumizone protective sheath material, and the material can prevent the biting of rats and ants and has no pollution to the environment. Meanwhile, the graphite semi-conductive layer 008 is coated on the surface layer of the outer protective layer 007, so that the method can be used for an outer protective layer voltage resistance test, meanwhile, the surface smoothness is increased, the outer protective layer 007 is smoother and complete, the pestilence biting corrosion has no force points, the efficiency of preventing mice and ants can be improved, the external scratch to the outer protective layer 007 is reduced in the construction laying process, the integrity of the outer protective layer 007 is maintained, and the effect of preventing the mice and ants is improved.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (3)
1. A medium voltage flexible cable, characterized by: including copper conductor (001), cable outer layer and graphite semiconductive layer (008), the cable outer parcel in copper conductor (001) surface, the cable outer includes conductor shielding layer (002), insulating layer (003), insulating shielding layer (004), water blocking layer (005), embossing copper sheath inoxidizing coating (006) and outer sheath (007), conductor shielding layer (002) parcel sets up copper conductor (001) surface, conductor shielding layer (002) surface parcel is equipped with insulating layer (003), insulating layer (003) surface parcel is equipped with insulating shielding layer (004), insulating shielding layer (004) surface parcel is equipped with water blocking layer (005), water blocking layer (005) surface parcel is equipped with embossing copper sheath inoxidizing coating (006), embossing copper sheath inoxidizing coating (006) surface parcel is equipped with outer sheath (007), even coating of graphite semiconductive layer (008) sets up outer sheath (007) surface.
2. The medium voltage flexible cable according to claim 1, wherein: the waterproof layer (005) is formed by semiconductive nylon belt (510), water absorption resin (520) and knitting cotton (530), semiconductive nylon belt (510) are located outside insulating shielding layer (004), semiconductive nylon belt (510) outside table is equipped with knitting cotton (530), knitting cotton (530) outside table is equipped with water absorption resin (520), water absorption resin (520) outside table is equipped with embossing copper sheath inoxidizing coating (006).
3. The medium voltage flexible cable according to claim 1, wherein: the outer sheath (007) comprises a first polyolefin sheath material (710), a fiber fine thread rope (720), a binder (730) and a second polyolefin sheath material (740), wherein the first polyolefin sheath material (710) is wrapped with the outer surface of the embossed copper sheath protection layer (006), the fiber fine thread rope (720) is wrapped on the outer surface of the first polyolefin sheath material (710), the binder (730) is filled on the outer surface of the fiber fine thread rope (720), and finally the second polyolefin sheath material (740) is wrapped on the outer surface of the fiber fine thread rope (720).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321278986.XU CN220171800U (en) | 2023-05-25 | 2023-05-25 | Medium-voltage flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321278986.XU CN220171800U (en) | 2023-05-25 | 2023-05-25 | Medium-voltage flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220171800U true CN220171800U (en) | 2023-12-12 |
Family
ID=89067297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321278986.XU Active CN220171800U (en) | 2023-05-25 | 2023-05-25 | Medium-voltage flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220171800U (en) |
-
2023
- 2023-05-25 CN CN202321278986.XU patent/CN220171800U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |