CN217822132U

CN217822132U - Tensile wear-resistant waterproof oil-resistant medium-voltage cable

Info

Publication number: CN217822132U
Application number: CN202220911972.6U
Authority: CN
Inventors: 谢忠; 安阳; 曾小平
Original assignee: Guangdong Jianbao Cable Co ltd
Current assignee: Guangdong Jianbao Cable Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-11-15
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a wear-resisting waterproof resistant oily middling pressure cable of tensile, including middling pressure cable conductor and outer protective sheath, the middling pressure cable conductor includes the soft concentric bare copper stranded conductor of annealing, the outside of the soft concentric bare copper stranded conductor of annealing is equipped with interior semiconductive shield layer. The utility model has the advantages that: the medium-high voltage cable has mature processing technology, has the characteristics of high safety, tensile strength, wear resistance, oil resistance, water resistance and the like, is a necessary choice for high voltage grades such as national power grid engineering, urban building groups, high-speed railway construction, nuclear power engineering, petroleum smelting and the like, and has good market prospect.

Description

Tensile wear-resistant waterproof oil-resistant medium-voltage cable

Technical Field

The utility model relates to a cable specifically is a wear-resisting waterproof resistant oily middling pressure cable of tensile belongs to cable technical field.

Background

Under the guidance of the fourteen-five planning strategy, the national economy is rapidly developed; china develops rapidly in various high and large project industries such as energy infrastructure, aerospace, power grid engineering, high-speed rail construction, nuclear power technology, through tunnel engineering, oil extraction and the like, and the development of the hardiness of China is powerfully shown.

As the construction is continuously increased, the basic power grid for matching power supply needs to meet the development matching requirements; the traditional medium-high voltage cable product cannot meet the matching requirements of the existing power grid in the aspects of high safety, tensile strength, wear resistance, water resistance, oil resistance and the like, so the traditional medium-high voltage cable product needs to be modified and upgraded; according to the investigation, at present, no research and development report in the aspects of high safety, tensile strength, wear resistance, water resistance, oil resistance and the like exists in China, so that development and trial production are required to meet the development key matching requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wear-resisting waterproof resistant oily medium voltage cable of tensile in order to solve above-mentioned problem, the device withstand voltage level belongs to medium and high voltage cable category, can bear withstand voltage 35KV and put the forceful electric shock in the office above, it is waterproof to satisfy medium and high voltage cable at tensile protecting against shock, resistant oil, anti mechanical external force, special supporting requirements such as anti heavy current overload, this technique processing technology is ripe, it is that national grid project, city building group, high-speed railway subway construction, nuclear power engineering, high voltage level's such as oil refining are supporting must be selected, market prospect is good.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a wear-resisting waterproof resistant oily medium voltage cable of tensile, including medium voltage cable conductor and outer protective sheath, the medium voltage cable conductor includes annealing soft concentric bare copper stranded conductor, the outside of annealing soft concentric bare copper stranded conductor is equipped with interior semi-conductive shielding layer, the outside of interior semi-conductive shielding layer is equipped with the insulating layer, the outside of insulating layer is equipped with outer semi-conductive shielding layer, the outside of outer semi-conductive shielding layer is equipped with the metal shielding layer;

the outer protective sheath sets up the outside at the middling pressure cable conductor, the inside of outer protective sheath is equipped with multiunit middling pressure cable conductor.

Preferably, the outer sides of the multiple groups of medium voltage cables are provided with netted filling strips, and the outer sides of the netted filling strips are provided with polyester ribbons.

Preferably, the outer side of the polyester ribbon is provided with an extruded inner protection layer, the outer side of the extruded inner protection layer is provided with a metal armor layer, and the metal armor layer is coated inside the outer protection sleeve.

The utility model has the advantages that:

the tensile, wear-resistant, waterproof and oil-resistant medium-voltage cable belongs to the category of medium-high voltage cables in voltage-resistant grade, can bear partial discharge strong electric shock of more than 35KV in voltage resistance, and meets the special matching requirements of the medium-high voltage cables on tensile, shock resistance, oil resistance, water resistance, mechanical external force resistance, large current overload resistance and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a block diagram of an annealed soft concentric bare copper stranded conductor according to the present invention;

fig. 3 is a structural diagram of a single medium voltage cable of the present invention.

In the figure: 1. annealing the soft concentric bare copper stranded conductor; 2. an inner semiconductive shield layer; 3. an insulating layer; 4. an outer semiconductive shield layer; 5. a metal shielding layer; 6. a single medium voltage cable; 7. a mesh-shaped filler strip; 8. polyester cable ties; 9. an inner protective layer is extruded; 10. a metal armor layer; 11. an outer protective sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a tensile, wear-resistant, waterproof, oil-resistant and medium-voltage cable includes a medium-voltage cable 6 and an outer protective sleeve 11, the medium-voltage cable 6 includes an annealed soft concentric bare copper stranded conductor 1, an inner semiconductive shielding layer 2 is disposed on an outer side of the annealed soft concentric bare copper stranded conductor 1, an insulating layer 3 is disposed on an outer side of the inner semiconductive shielding layer 2, an outer semiconductive shielding layer 4 is disposed on an outer side of the insulating layer 3, and a metal shielding layer 5 is disposed on an outer side of the outer semiconductive shielding layer 4;

outer protective sheath 11 sets up in the outside of middling pressure cable conductor 6, and the inside of outer protective sheath 11 is equipped with multiunit middling pressure cable conductor 6.

The outside of multiunit medium voltage cable conductor 6 is equipped with netted packing strip 7, and the outside of netted packing strip 7 is equipped with polyester ribbon 8, and netted packing strip 7 of setting plays stably and the isolation effect.

The outside of polyester ribbon 8 is equipped with the interior sheath 9 of crowded package, and the outside of the interior sheath 9 of crowded package is equipped with metal armor 10, and metal armor 10 is by the cladding in the inside of outer protective sheath 11, and the metal armor 10 of setting fully plays tensile reinforcement effect.

The working principle is as follows: when 6 group cables of middling pressure cable line that set up, add netted packing strip 7, fill around three middling pressure cable line 6, do and stabilize and isolation, the outside polyester ribbon 8 that adopts during the stranding, constitute semi-manufactured goods, then the inner sheath 9 of crowded package of design is isolation protection in the outside of polyester ribbon 8, metal armor 10 is done to the outside of inner sheath 9 of crowded package, fully play tensile additional strengthening, outer protective sheath 11 in the metal armor 10 outside, be the low smoke and zero halogen polyolefin sheath material that adopts 125 ℃, fully play wear-resisting, waterproof, anti-oil, comprehensive protection such as temperature resistance.

The cable forms a high-safety tensile, wear-resistant, oil-resistant and waterproof medium-voltage cable technology, the voltage-resistant grade belongs to the category of medium-voltage and high-voltage cables, the medium-voltage and high-voltage cable can bear partial discharge strong electric shock above withstand voltage 35KV, and special matching requirements of the medium-voltage and high-voltage cables on tensile, impact, oil, waterproof, mechanical external force resistance, large current overload resistance and the like are met.

The tensile, wear-resistant, waterproof, oil-resistant and high-safety medium-voltage cable technology has special performance characteristics, completely meets the related high-grade voltage matching application requirements of modern smart grid engineering, aerospace, ships, vehicles, mines, through tunnels, high-speed rail and subway construction, nuclear power engineering, oil exploitation and the like, and has excellent electrical performance and market prospect facing the sun.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a wear-resisting waterproof resistant oily medium voltage cable of tensile, includes medium voltage cable conductor (6) and outer protective sheath (11), its characterized in that:

the medium-voltage cable (6) comprises an annealed soft concentric bare copper stranded conductor (1), an inner semi-conductive shielding layer (2) is arranged on the outer side of the annealed soft concentric bare copper stranded conductor (1), an insulating layer (3) is arranged on the outer side of the inner semi-conductive shielding layer (2), an outer semi-conductive shielding layer (4) is arranged on the outer side of the insulating layer (3), and a metal shielding layer (5) is arranged on the outer side of the outer semi-conductive shielding layer (4);

outer protective sheath (11) set up in the outside of middling pressure cable conductor (6), the inside of outer protective sheath (11) is equipped with multiunit middling pressure cable conductor (6).

2. The cable of claim 1, wherein the cable is characterized in that: the multiunit the outside of middling pressure cable conductor (6) is equipped with netted packing strip (7), the outside of netted packing strip (7) is equipped with polyester ribbon (8).

3. The cable of claim 2, wherein the cable is characterized in that: the outside of polyester ribbon (8) is equipped with interior sheath (9) of crowded package, the outside of interior sheath (9) of crowded package is equipped with metal armor (10), metal armor (10) are by the inside of cladding at outer protective sheath (11).