CN116978610A - Tensile wear-resistant waterproof medium-voltage cable - Google Patents
Tensile wear-resistant waterproof medium-voltage cable Download PDFInfo
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- CN116978610A CN116978610A CN202311006265.8A CN202311006265A CN116978610A CN 116978610 A CN116978610 A CN 116978610A CN 202311006265 A CN202311006265 A CN 202311006265A CN 116978610 A CN116978610 A CN 116978610A
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- waterproof
- wear
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- 230000006835 compression Effects 0.000 claims abstract description 59
- 238000007906 compression Methods 0.000 claims abstract description 59
- 230000003287 optical effect Effects 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 37
- 230000000903 blocking effect Effects 0.000 claims description 25
- 230000002633 protecting effect Effects 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
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- Cable Accessories (AREA)
Abstract
The invention relates to the technical field of medium voltage cables and provides a tensile wear-resistant waterproof medium voltage cable which comprises an outer protective sleeve and a plurality of groups of inner optical cables, wherein a metal sleeve is arranged on the outer surface of the inner wall of the outer protective sleeve, a waterproof layer is arranged on the outer surface of the inner wall of the metal sleeve, a tensile structure is arranged on the outer surface of the inner wall of the waterproof layer, a compression structure is arranged on the inner side of the inner optical cable, an inner protective sleeve is arranged on the outer side of the inner optical cable, a positioning component is arranged in a cavity formed by the inner optical cable, the compression structure and the inner protective sleeve, a wrapping belt layer is arranged between the inner protective sleeve and the tensile structure, the tensile structure comprises a longitudinal part which is transversely arranged, a transverse part is longitudinally arranged on the outer surface of the longitudinal part, and a spiral part is wound between the transverse part and the longitudinal part. Through above-mentioned technical scheme, solved current cable compressive property relatively poor, through single hollow columnar pipeline compressive waterproof function relatively poor problem under the great environment of buried deeper water fire water pressure.
Description
Technical Field
The invention relates to the technical field of medium voltage cables, in particular to a tensile wear-resistant waterproof medium voltage cable.
Background
Along with the development of the power industry, the cable has become an indispensable part in daily life for providing power sources for various industries, and according to different purposes, the cable is gradually added with various functions such as water resistance, wear resistance and the like, so as to meet the use requirements of the cable in different environments, different power requirements are formed by integrating cable bundles, the medium-voltage cable refers to a cable below 35 kilovolts, and the medium-voltage cable are generally classified into one type of cable;
through retrieval, the high-tensile wear-resistant umbilical cable for ocean engineering with the authorized bulletin number of CN112466521B has excellent ageing-resistant sealing waterproof property, high tensile strength, good flexibility, high temperature resistance, corrosion resistance and good mechanical property, reduces the overall dead weight of the cable, prolongs the service life of the cable, and further improves the reliability of the used line, thereby creating more benefits;
however, the compression resistance of the cable in the patent is poor, and the compression resistance and water resistance function of the cable in the environment with high water pressure of deep water fire buried in the ground through a single hollow columnar pipeline are poor.
Disclosure of Invention
The invention provides a tensile wear-resistant waterproof medium-voltage cable, which solves the problems that the existing cable in the related art is poor in compression resistance and waterproof function under the environment of high water pressure of deep water through a single hollow columnar pipeline.
The technical scheme of the invention is as follows:
the utility model provides a tensile wear-resisting waterproof medium voltage cable, includes outer protective sheath and a plurality of group of interior optical cable, the inner wall surface of outer protective sheath is provided with the metal sheath, the inner wall surface of metal sheath is provided with the waterproof layer, the inner wall surface of waterproof layer is provided with tensile structure, the inboard of interior optical cable is provided with compressive structure, the outside of interior optical cable is provided with interior lag, the cavity that interior optical cable and compressive structure and interior lag formed is provided with locating component, be provided with the band layer between interior lag and the tensile structure;
the tensile structure comprises a longitudinal member which is transversely arranged, a transverse member is longitudinally arranged on the outer surface of the longitudinal member, and a spiral member is wound between the transverse member and the longitudinal member;
the longitudinal members are of annular structures and distributed in a straight-line array, the transverse members are in a plurality of groups and distributed in an annular array, the transverse members and the longitudinal members of the plurality of groups form a net structure, and the spiral members are spirally wound in the length direction of the optical cable.
As a further technical scheme of the invention, the compression-resistant structure comprises a central compression-resistant sleeve arranged on the inner sides of a plurality of groups of inner optical cables, a central shaft is arranged at the axis center of the central compression-resistant sleeve, a joint plate is arranged between the central shaft and the central compression-resistant sleeve, a reinforcing ring is arranged between the inner wall of the central compression-resistant sleeve and the joint plate, and a reinforcing spring is arranged on the outer surface of the joint plate.
As a further technical scheme of the invention, the inner protecting sleeve and the central compression-resistant sleeve are respectively provided with a columnar groove, the inner parts of the columnar grooves are provided with inner springs, the number of the inner columnar grooves and the inner springs of the inner protecting sleeve is greater than that of the inner columnar grooves and the inner springs of the central compression-resistant sleeve, and the inner springs and the columnar grooves are distributed in an annular array.
As a further technical scheme of the invention, the positioning assembly comprises elastic sleeves arranged between two adjacent groups of inner optical cables, an inner protecting sleeve and a central compression-resistant sleeve, an arc-shaped plate is arranged in the elastic sleeve, a reinforcing plate is arranged between the arc-shaped plate and the elastic sleeve, and concave openings are arranged on two sides of the elastic sleeve.
As a further technical scheme of the invention, the metal sleeve is made of metal material woven into a grid shape, tiny holes are formed among the longitudinal piece, the transverse piece and the spiral piece, the wrapping band layer and the waterproof layer are uniformly embedded in the holes, and the outer protective sleeve is made of wear-resistant insulating material.
As a further technical scheme of the invention, the connecting plates are fixedly connected with the central shaft and the central compression-resistant sleeve, the number of the connecting plates is three, the connecting plates are distributed in an annular array, and the outer diameter of the reinforcing ring is matched with the inner diameter of the central compression-resistant sleeve.
As a further technical scheme of the invention, the reinforcing rings are fixedly connected with the central compression-resistant sleeve and the connecting plate, the reinforcing rings are in a plurality of groups and distributed in an array along the length direction of the cable, the reinforcing springs are arranged along the length direction of the cable, and the reinforcing springs penetrate through the connecting plate.
As a further technical scheme of the invention, the number of the inner optical cables is a plurality of groups and is distributed in an annular array, the elastic sleeve is made of an insulating material with elasticity, the number of the arc plates corresponding to one group of the elastic sleeve is three groups, the three groups of the arc plates are all arranged in an arc shape, and the axle centers of the three groups of arc plates are overlapped with the axle center of the outer protective sleeve.
As a further technical scheme of the invention, the arc plate penetrates through the arc plate, two ends of the reinforcing plate are fixedly connected with the inner wall of the elastic sleeve, the number of the reinforcing plates is a plurality of groups and are distributed along the length direction of the elastic sleeve in an array manner, and the inner optical cables and the positioning components are distributed at intervals between the inner protecting sleeve and the central compression-resistant sleeve.
As a further technical scheme of the invention, the waterproof layer comprises water blocking belts arranged on the outermost layer and the innermost layer, water blocking sheaths are arranged on the inner side and the outer surface of the water blocking belts, the two water blocking sheaths are positioned and fixed through a structural plate, water blocking powder is filled in the middle of the water blocking sheaths, the water blocking sheaths and the structural plate are made of HDPE materials with radial water blocking functions, and the number of the structural plates is three and distributed in an annular array.
The working principle and the beneficial effects of the invention are as follows:
1. according to the waterproof layer, the waterproof layer is arranged on the outer layer of the waterproof belt, so that the waterproof layer can be waterproof in the using process, the waterproof function can be realized through the waterproof powder when the waterproof belt outside is damaged, and the waterproof function can be still met when the waterproof belt is damaged locally.
2. According to the invention, through the action of the tensile structure, the tensile property and toughness of the whole cable can be improved in the transverse and vertical directions and the integrity in the use process.
3. According to the invention, through the effect of the compression-resistant structure, the whole compression resistance of the cable can be enhanced, the compression resistance of the cable can be enhanced, meanwhile, the torsion resistance of the cable can be enhanced, and through the cooperation of the inner protective sleeve, the whole compression resistance and tensile resistance effect of the cable can be enhanced, so that the durability effect of the cable is better.
4. According to the invention, the position of the inner optical cable can be positioned and fixed under the action of the positioning component, and the integral compression-resistant effect of the cable can be further enhanced by matching with the compression-resistant structure.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a partial structure of the present invention;
FIG. 2 is a schematic view of the present invention in partial configuration and taken along line with FIG. 1;
FIG. 3 is a partial side cross-sectional view of the present invention;
FIG. 4 is a schematic view of a part of the compression-resistant structure of the present invention;
FIG. 5 is a partial side cross-sectional view of the present invention taken through the inner protective sheath;
FIG. 6 is a schematic view of a partial structure of the positioning assembly of the present invention;
FIG. 7 is a schematic view of a portion of a tensile structure of the present invention;
FIG. 8 is a schematic view of the partial structure of FIG. 7 according to the present invention;
fig. 9 is a partial side cross-sectional view of a waterproof layer of the present invention.
In the figure: 1. an outer protective sleeve; 2. a metal sleeve; 3. a waterproof layer; 31. a water blocking tape; 32. a water-blocking sheath; 33. water-blocking powder; 34. a structural panel; 4. a tensile structure; 41. a longitudinal member; 42. a cross member; 43. a screw; 5. a tape layer; 6. a compression-resistant structure; 61. a central compression-resistant sleeve; 62. a central shaft; 63. a splice plate; 64. a reinforcing ring; 65. a reinforcing spring; 7. an inner protective sleeve; 71. a columnar groove; 72. an inner spring; 8. an inner optical cable; 9. a positioning assembly; 91. an elastic sleeve; 92. an arc-shaped plate; 93. a reinforcing plate; 94. and a concave opening.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 3, this embodiment provides a tensile wear-resistant waterproof medium voltage cable, including outer protective sheath 1 and a plurality of group of interior optical cable 8, the inner wall surface of outer protective sheath 1 is provided with metal cover 2, the inner wall surface of metal cover 2 is provided with waterproof layer 3, the inner wall surface of waterproof layer 3 is provided with tensile structure 4, the inboard of interior optical cable 8 is provided with compressive structure 6, the outside of interior optical cable 8 is provided with interior lag 7, the cavity that interior optical cable 8 and compressive structure 6 and interior lag 7 formed is provided with locating component 9, be provided with band layer 5 between interior lag 7 and the tensile structure 4.
Example 2
As shown in fig. 7 to 8, on the basis of embodiment 1, it is also proposed that the tensile structure 4 includes a longitudinal member 41 disposed transversely, a transverse member 42 disposed longitudinally on an outer surface of the longitudinal member 41, and a spiral member 43 disposed between the transverse member 42 and the longitudinal member 41 in a winding manner; the longitudinal members 41 are of annular structures and distributed in a straight line-shaped array, the number of the transverse members 42 is a plurality of groups, the transverse members 42 and the longitudinal members 41 of the groups form a net-shaped structure, and the spiral members 43 are spirally wound in the length direction of the optical cable; the metal sleeve 2 is made of metal material woven into a grid shape, tiny holes are formed among the longitudinal piece 41, the transverse piece 42 and the spiral piece 43, the wrapping tape layer 5 and the waterproof layer 3 are uniformly embedded in the holes, and the outer protective sleeve 1 is made of wear-resistant insulating material; the tensile strength and toughness effects of the whole cable can be improved in the transverse and vertical directions and the integrity, the cable inside can be protected, the flexibility of the cable outside is enhanced, and the service life of the cable can be prolonged when the cable is used.
Example 3
As shown in fig. 4 to 5, on the basis of embodiment 2, it is also proposed that the compression-resistant structure 6 includes a central compression-resistant jacket 61 disposed inside the plurality of groups of inner optical cables 8, a central shaft 62 is disposed at the axial center of the central compression-resistant jacket 61, a joint plate 63 is disposed between the central shaft 62 and the central compression-resistant jacket 61, a reinforcing ring 64 is disposed between the inner wall of the central compression-resistant jacket 61 and the joint plate 63, and a reinforcing spring 65 is disposed on the outer surface of the joint plate 63; the joint plates 63 are fixedly connected with the central shaft 62 and the central compression-resistant sleeve 61, the number of the joint plates 63 is three, the joint plates are distributed in an annular array, and the outer diameter of the reinforcing ring 64 is matched with the inner diameter of the central compression-resistant sleeve 61; the reinforcing rings 64 are fixedly connected with the central compression-resistant sleeve 61 and the connecting plate 63, the reinforcing rings 64 are in a plurality of groups and distributed in an array along the length direction of the cable, the reinforcing springs 65 are arranged along the length direction of the cable, and the reinforcing springs 65 penetrate through the connecting plate 63; can strengthen holistic compressive property of cable, can make the compressive property of cable stronger, can strengthen the antitorque commentaries on classics nature of cable simultaneously, through the cooperation of interior lag 7, can make holistic compressive and tensile nature effect of cable stronger, can strengthen the compressive property of cable from whole cable center department for the atress of cable is more even, can make holistic result of use of cable better.
Example 4
As shown in fig. 5, on the basis of embodiment 3, it is further proposed that the inner protecting sleeve 7 and the inner portion of the central compression-resistant sleeve 61 are provided with cylindrical grooves 71, the inner portion of the cylindrical grooves 71 is provided with inner springs 72, the number of the cylindrical grooves 71 and the inner springs 72 in the inner protecting sleeve 7 is greater than that of the cylindrical grooves 71 and the inner springs 72 in the central compression-resistant sleeve 61, the inner springs 72 and the cylindrical grooves 71 are distributed in a ring-shaped array, so that the protecting effect of the inner protecting sleeve 7 and the central compression-resistant sleeve 61 on the cable is better, and the cable is prevented from being worn in the laying and using processes.
Example 5
As shown in fig. 6, on the basis of embodiment 4, it is further proposed that the positioning assembly 9 includes an elastic sleeve 91 disposed between two adjacent sets of inner optical cables 8 and the inner protective sleeve 7 and the central compression-resistant sleeve 61, an arc plate 92 is disposed inside the elastic sleeve 91, a reinforcing plate 93 is disposed between the arc plate 92 and the elastic sleeve 91, and recessed openings 94 are disposed on both sides of the elastic sleeve 91; the number of the inner optical cables 8 is a plurality of groups and the inner optical cables are distributed in an annular array, the elastic sleeves 91 are made of an insulating material with elasticity, the number of the elastic sleeves 91 corresponding to the arc plates 92 is three groups, the three groups of arc plates 92 are all arranged in an arc shape, and the axes of the three groups of arc plates 92 are coincident with the axis of the outer protective sleeve 1; the arc-shaped plates 92 penetrate through the arc-shaped plates 92, two ends of the reinforcing plates 93 are fixedly connected with the inner wall of the elastic sleeve 91, the number of the reinforcing plates 93 is a plurality of groups, the reinforcing plates are distributed in an array mode along the length direction of the elastic sleeve 91, and the inner optical cables 8 and the positioning assemblies 9 are distributed at intervals between the inner protective sleeve 7 and the central compression-resistant sleeve 61; the position of the inner optical cable 8 can be positioned and fixed, the whole compression effect of the cable can be further enhanced by matching the compression structure 6, the inner optical cable 8 can be positioned and protected by matching the columnar groove 71, the inner spring 72 and the compression structure 6, and the compression and tensile properties of the cable can be enhanced.
Example 6
As shown in fig. 9, on the basis of embodiment 5, it is further proposed that the waterproof layer 3 includes a water blocking tape 31 disposed on an outermost layer and an innermost layer, a water blocking sheath 32 is disposed on an inner outer surface of the water blocking tape 31, and the two water blocking sheaths 32 are fixed by a structural plate 34, a middle part of the water blocking sheath 32 is filled with water blocking powder 33, the water blocking sheath 32 and the structural plate 34 are made of HDPE materials with radial water blocking function, and the number of the structural plates 34 is three and distributed in an annular array; can waterproof through the outer-most water-blocking tape 31, still can realize waterproof function through the water-blocking powder 33 when outside water-blocking tape 31 is damaged, still can satisfy the water-blocking function when the local emergence is damaged, can be under the condition that above-mentioned tensile compressive property strengthens for the holistic waterproof property of cable is stronger, thereby satisfies the demand of using in the great district of rainfall or submarine cable.
In summary, during use, the three sets of engagement plates 63 can engage the central compression sleeve 61 with the central shaft 62, so as to enhance the compression and torsion resistance of the cable as a whole, and simultaneously, the compression and torsion resistance of the cable can be further enhanced through the action of the reinforcing ring 64 and the reinforcing spring 65;
the elastic sleeve 91 is matched with the central compression-resistant sleeve 61, the inner protective sleeve 7, the columnar groove 71 and the inner spring 72 to fix the position of the inner optical cable 8 under the action of the inner protective sleeve 7 and the positioning assembly 9, and meanwhile, the elastic sleeve 91 is used for fixing the position of the inner optical cable 8 under the action of the arc plate 92 and the reinforcing plate 93, so that the protection and toughness effects on the inner optical cable 8 can be enhanced, the protection and toughness enhancement on the inner optical cable 8 can be enhanced, and the whole use effect of the cable is better;
in the whole use process of the cable, the tensile property of the cable can be enhanced in the transverse direction through the longitudinal piece 41, the tensile property of the cable can be enhanced in the length direction of the cable through the transverse piece 42, and the connecting effect between the transverse piece 42 and the longitudinal piece 41 can be further enhanced through the spiral piece 43, so that the connecting effect between the transverse piece 42 and the longitudinal piece 41 is more compact, and the whole tensile effect of the cable can be enhanced;
it should be noted that, in the use process, when the cable is used in an area with more underwater or underground water, the waterproof can be performed through the outermost layer of the waterproof tape 31, the waterproof function can still be realized through the waterproof sheath 32 and the waterproof powder 33 when the outside waterproof tape 31 is damaged, the waterproof function can still be satisfied when the local damage occurs, and meanwhile, the inner and outer two layers of the waterproof sheaths 32 can form positioning through the columnar structural plate 34, so that the waterproof effect of each position of the whole is kept consistent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a tensile wear-resisting waterproof medium voltage cable, its characterized in that includes outer protective sheath (1) and a plurality of group interior optical cable (8), the inner wall surface of outer protective sheath (1) is provided with metal sheath (2), the inner wall surface of metal sheath (2) is provided with waterproof layer (3), the inner wall surface of waterproof layer (3) is provided with tensile structure (4), the inboard of interior optical cable (8) is provided with compressive structure (6), the outside of interior optical cable (8) is provided with interior lag (7), the cavity that interior optical cable (8) and compressive structure (6) and interior lag (7) formed is provided with locating component (9), be provided with band layer (5) between interior lag (7) and tensile structure (4);
the tensile structure (4) comprises a longitudinal piece (41) which is transversely arranged, a transverse piece (42) is longitudinally arranged on the outer surface of the longitudinal piece (41), and a spiral piece (43) is wound between the transverse piece (42) and the longitudinal piece (41);
the longitudinal members (41) are of annular structures and distributed in a straight-line array, the transverse members (42) are arranged in a plurality of groups and distributed in an annular array, the transverse members (42) and the longitudinal members (41) in a plurality of groups form a net-shaped structure, and the spiral members (43) are spirally wound in the length direction of the optical cable.
2. The tensile, wear-resistant and waterproof medium voltage cable according to claim 1, characterized in that the compression structure (6) comprises a central compression sleeve (61) arranged on the inner sides of a plurality of groups of inner optical cables (8), a central shaft (62) is arranged at the axle center of the central compression sleeve (61), a joint plate (63) is arranged between the central shaft (62) and the central compression sleeve (61), a reinforcing ring (64) is arranged between the inner wall of the central compression sleeve (61) and the joint plate (63), and a reinforcing spring (65) is arranged on the outer surface of the joint plate (63).
3. The tensile wear-resistant waterproof medium voltage cable according to claim 2, wherein the inner protecting sleeve (7) and the inner part of the central compression-resistant sleeve (61) are provided with columnar grooves (71), the inner part of the columnar grooves (71) is provided with inner springs (72), and the number of the inner columnar grooves (71) and the inner springs (72) in the inner protecting sleeve (7) is more than that of the inner columnar grooves (71) and the inner springs (72) in the central compression-resistant sleeve (61), and the inner springs (72) and the columnar grooves (71) are distributed in a ring array.
4. The tensile, wear-resistant and waterproof medium voltage cable according to claim 1, wherein the positioning component (9) comprises an elastic sleeve (91) arranged between two adjacent groups of inner optical cables (8) and an inner protective sleeve (7) and a central compression-resistant sleeve (61), an arc-shaped plate (92) is arranged in the elastic sleeve (91), a reinforcing plate (93) is arranged between the arc-shaped plate (92) and the elastic sleeve (91), and concave openings (94) are formed in two sides of the elastic sleeve (91).
5. The tensile, wear-resistant and waterproof medium voltage cable according to claim 1, wherein the metal sleeve (2) is made of metal material woven into a grid shape, fine holes are formed among the longitudinal piece (41), the transverse piece (42) and the spiral piece (43), the wrapping tape layer (5) and the waterproof layer (3) are uniformly embedded in the holes, and the outer protective sleeve (1) is made of wear-resistant insulating material.
6. The tensile, wear-resistant and waterproof medium voltage cable according to claim 2, wherein the connecting plates (63) are fixedly connected with the central shaft (62) and the central compression-resistant sleeve (61), the number of the connecting plates (63) is three, the connecting plates are distributed in an annular array, and the outer diameter of the reinforcing ring (64) is matched with the inner diameter of the central compression-resistant sleeve (61).
7. The tensile, wear-resistant and waterproof medium voltage cable according to claim 6, wherein the reinforcing rings (64) are fixedly connected with the central compression sleeve (61) and the connecting plate (63), the reinforcing rings (64) are in a plurality of groups and distributed in an array along the length direction of the cable, the reinforcing springs (65) are arranged along the length direction of the cable, and the reinforcing springs (65) penetrate through the connecting plate (63).
8. The tensile, wear-resistant and waterproof medium voltage cable according to claim 4, wherein the number of the inner optical cables (8) is a plurality of groups and distributed in an annular array, the elastic sleeves (91) are made of elastic insulating materials, the number of the arc-shaped plates (92) corresponding to one group of the elastic sleeves (91) is three, the arc-shaped plates (92) of three groups are all arranged in an arc shape, and the axle centers of the arc-shaped plates (92) of three groups are coincident with the axle center of the outer protective sleeve (1).
9. The tensile, wear-resistant and waterproof medium voltage cable according to claim 8, wherein the arc plate (92) penetrates through the arc plate (92), two ends of the reinforcing plate (93) are fixedly connected with the inner wall of the elastic sleeve (91), the number of the reinforcing plates (93) is a plurality of groups and distributed along the length direction array of the elastic sleeve (91), and the inner optical cable (8) and the positioning component (9) are distributed at intervals between the inner protecting sleeve (7) and the central compression sleeve (61).
10. The tensile wear-resistant waterproof medium voltage cable according to claim 1, wherein the waterproof layer (3) comprises a water blocking tape (31) arranged on an outermost layer and an innermost layer, a water blocking sheath (32) is arranged on the inner outer surface of the water blocking tape (31), the two water blocking sheaths (32) are fixedly positioned through a structural plate (34), water blocking powder (33) is filled in the middle of the water blocking sheath (32), the water blocking sheaths (32) and the structural plate (34) are made of HDPE materials with a radial water blocking function, and the structural plates (34) are distributed in three groups and are distributed in an annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311006265.8A CN116978610A (en) | 2023-08-11 | 2023-08-11 | Tensile wear-resistant waterproof medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311006265.8A CN116978610A (en) | 2023-08-11 | 2023-08-11 | Tensile wear-resistant waterproof medium-voltage cable |
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| Publication Number | Publication Date |
|---|---|
| CN116978610A true CN116978610A (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311006265.8A Pending CN116978610A (en) | 2023-08-11 | 2023-08-11 | Tensile wear-resistant waterproof medium-voltage cable |
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| CN217239102U (en) * | 2022-03-21 | 2022-08-19 | 广州日信实业有限公司 | New energy charging pile cable with high tensile property and flame retardance |
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