CN212541997U

CN212541997U - 110kV crosslinked cable

Info

Publication number: CN212541997U
Application number: CN201922425257.2U
Authority: CN
Inventors: 黄美华; 张哲新
Original assignee: CHONGQING KEBAO CABLE CO LTD
Current assignee: CHONGQING KEBAO CABLE CO LTD
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-02-12
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a 110kV crosslinked cable relates to the crosslinked cable field, for reaching above-mentioned purpose, the technical scheme of the utility model be from inside to outside in proper order include conductor, shielding layer, insulating layer, copper woven fiber band lead sheath, armor and oversheath, its characterized in that, still be equipped with the buffering semiconductive shielding layer that blocks water outside the insulating layer, at the buffering semiconductive shielding layer peripheral crowded package one deck aluminum sheath that blocks water, the armor with be equipped with the non-woven cloth area that blocks water between the oversheath. The cable has good electrical and mechanical properties, can meet various environmental requirements, can remarkably improve the water-blocking performance of the cable through the water-blocking non-woven fabric and the water-blocking buffering semi-conductive shielding layer, and has better corrosion-resistant effect.

Description

110kV crosslinked cable

Technical Field

The utility model relates to a 110kV crosslinked cable mainly relates to the crosslinked cable field.

Background

With the rapid development of national economy, the process of rural urbanization construction is accelerated, and the continuous deepening of urban and rural power grid transformation is promoted. The basic industries such as the power industry and the like are developed vigorously, and the capacity of a power grid is increased sharply, so that the demand of the 110kV high-voltage power cable is increased more and more, and the quality requirement of the 110kV high-voltage power cable is also increased more and more. However, through market research, a large number of cables in the prior art still have poor waterproof performance and poor corrosion resistance.

SUMMERY OF THE UTILITY MODEL

Not enough to above prior art, the utility model provides a 110kV crosslinked cable, electric, mechanical properties are good, can satisfy various environmental requirements, can show the performance of blocking water that improves the cable through the non-woven fabrics that blocks water and the buffering semi-conductive shielding layer that blocks water, have better corrosion-resistant effect simultaneously.

In order to achieve the above purpose, the technical scheme of the utility model is that: include conductor, shielding layer, insulating layer, copper woven fiber band lead sheath, armor and oversheath from inside to outside in proper order, its characterized in that still is equipped with the buffering semi-conductive shielding layer that blocks water outside the insulating layer, at the buffering semi-conductive shielding layer periphery crowded package one deck aluminium sheath that blocks water, the armor with be equipped with the non-woven fabrics area that blocks water between the oversheath.

The technical principle and the beneficial effects of the utility model are as follows:

the water-blocking non-woven fabric belt can be rapidly expanded to be three-four times of thickness when meeting water, so that a good water-blocking effect is achieved, after a cable sample is soaked in water for 72 hours, a composite layer outside an insulating layer is removed, the outer surface of the insulating layer is dry through visual observation, and the water-blocking buffering semi-conductive shielding layer can penetrate through the water-blocking non-woven fabric in time to block water and can further shield the water.

This scheme electric, mechanical properties are good, can satisfy various environmental requirements, can show the performance of blocking water that improves the cable through the non-woven fabrics that blocks water and the buffering semiconductive shield layer that blocks water, have better corrosion-resistant effect simultaneously.

Preferably, the insulating layer is polyvinyl chloride, and the cable can be more flexible and can be bent and folded at will through the polyvinyl chloride sheath material.

Preferably, the shielding layer is a tin-plated copper wire mesh layer, which can prevent electromagnetic radiation from the outside.

Preferably, the armor is galvanized steel wire net layer, can avoid the worm and mouse to gnaw and eat, cooperates each other with tin-plated copper wire net layer simultaneously and shields outside electromagnetic radiation.

Preferably, the outer sheath is made of thermoplastic resin material, the thermoplastic resin material has good low-temperature resistance and high-temperature resistance and good chemical stability, and conforms to most places needing acid-base corrosion resistance, the outer sheath is insoluble in general chemical solvents at normal temperature, has small water absorption and excellent electrical insulation performance, and can well protect the copper sheath from being corroded.

Preferably, the buffering semi-conductive shielding layer that blocks water is for overlapping the package structure, and the cable is round, does not have the oil bar phenomenon after the stranding.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly described below, it is obvious that the drawings in the following description are only two of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

The cable comprises a conductor 1, a shielding layer 2, an insulating layer 3, a water-blocking buffer semi-conductive shielding layer 4, an aluminum sheath 5, a copper-woven fiber lead sheath 6, an armor layer 7, a water-blocking non-woven fabric tape 8 and an outer sheath 9.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than 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.

Examples

As shown in fig. 1, the embodiment of the present invention includes a conductor 1, a shielding layer 2, an insulating layer 3, a copper woven fiber tape lead sheath 6, an armor layer 7 and an outer sheath 9 in sequence from inside to outside.

The shielding layer 2 adopts a tin-plated copper wire mesh layer, so that the shielding of external electromagnetic radiation can be avoided.

The insulating layer 3 is made of polyvinyl chloride, and the cable can be more flexible and can be bent and folded at will through the polyvinyl chloride sheath material.

Armor 7 is the galvanized steel wire net layer, can avoid the worm and mouse to gnaw and eat, cooperates each other with tin-plated copper wire net layer simultaneously and shields outside electromagnetic radiation.

The outer sheath 9 is made of thermoplastic resin material, the thermoplastic resin material has good low-temperature resistance and high-temperature resistance, the chemical stability is good, most places needing acid-base corrosion are met, the outer sheath is insoluble in general chemical solvents at normal temperature, the water absorption is small, the electrical insulation performance is excellent, and the copper sheath can be well protected from being corroded.

And a water-blocking buffer semi-conductive shielding layer 4 is further arranged outside the insulating layer 3, and a layer of aluminum sheath 5 is extruded on the periphery of the water-blocking buffer semi-conductive shielding layer 4. The aluminum sheath 5 can improve the overall waterproof performance. The water-blocking buffer semi-conductive shielding layer 4 is of an overlapping wrapping structure, and the cable is round and has no oil strips after being cabled. And a water-blocking non-woven fabric belt 8 is arranged between the armor layer 7 and the outer sheath 9.

The water-blocking non-woven fabric belt 8 can be rapidly expanded to be three-four times thick after meeting water, so that a good water-blocking effect is achieved, after a cable sample is soaked in water for 72 hours, a composite layer outside the insulating layer 3 is removed, the outer surface of the insulating layer 3 is dry through visual observation, and the water-blocking buffering semi-conductive shielding layer 4 can penetrate through the water-blocking non-woven fabric in time to block water and can further shield.

The scheme has good electrical and mechanical properties, can meet various environmental requirements, and can remarkably improve the water-blocking performance of the cable through the water-blocking non-woven fabric and the water-blocking buffering semi-conductive shielding layer 4.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1.110kV crosslinked cable includes conductor (1), shielding layer (2), insulating layer (3), copper woven fiber band lead sheath (6), armor (7) and oversheath (9) from inside to outside in proper order, its characterized in that, insulating layer (3) still are equipped with the buffering semiconductive shield layer (4) that blocks water outward, at buffering semiconductive shield layer (4) peripheral crowded package one deck aluminum sheath (5) that blocks water, armor (7) with be equipped with non-woven cloth area (8) that blocks water between oversheath (9).

2. The 110kV crosslinked cable of claim 1, wherein: the insulating layer (3) is made of polyvinyl chloride.

3. The 110kV crosslinked cable of claim 1, wherein: the shielding layer (2) adopts a tin-plated copper wire mesh layer.

4. The 110kV crosslinked cable of claim 1, wherein: the armor layer (7) is a galvanized steel wire mesh layer.

5. The 110kV crosslinked cable of claim 1, wherein: the outer sheath (9) is made of thermoplastic resin material.

6. The 110kV crosslinked cable of claim 1, wherein: the water-blocking buffer semi-conductive shielding layer (4) is of an overlapping wrapping structure.