CN210052575U - High-strength transmission cable - Google Patents

Abstract

The utility model belongs to the technical field of the power cable technique and specifically relates to a high strength transmission cable, it is by outer to interior hydrophobic layer, insulating layer, shielding layer, buffer layer, isolation layer and the electrically conductive cable of including in proper order, be provided with the back up coat between insulating layer and the shielding layer, it has the hole of wearing to establish to be evenly densely covered by circumference in the buffer layer, every wear to establish downthehole steel cable that all sets up the cross-sectional diameter and wear to establish the aperture the same, the back up coat is by meshwork netted steel cable stratum reticulare and the flexible rubber layer combination that fuses with the steel cable stratum reticulare, the utility model discloses can improve the firm intensity of cable and the power output security in the high voltage use.

Description

High-strength transmission cable

Technical Field

The utility model relates to a power cable technical field, concrete field is a high strength transmission cable.

Background

The cable is a wire used for transmitting and distributing electric energy, and the common cables of the electric power system are distributed in an urban underground power grid, a leading-out line of a power station, an internal power supply of an industrial and mining enterprise and an underwater power transmission system for crossing the river and the sea, and the cables are generally required to bear extra-high voltage and high-power electric energy in the systems, so that the common cables cannot provide specific pressure resistance, firm strength and service life of the cables.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength transmission cable to solve the problem that power transmission capacity is not enough among the prior art, the firm intensity of power cord is not high.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength transmission cable, its from outer to interior includes hydrophobic layer, insulating layer, shielding layer, buffer layer, isolation layer and conductive cable in proper order, be provided with the back up coat between insulating layer and the shielding layer, be the even dense perforation that has of circumference in the buffer layer, all set up the steel cable that cross-section diameter is the same with perforation aperture in every perforation, the back up coat is by meshwork's steel cable stratum reticulare and the flexible rubber layer that fuses with the steel cable stratum reticulare combined.

Preferably, the hydrophobic layer is made of a water-blocking paste.

Preferably, the insulating layer is made of insulating silicone rubber.

Preferably, the shielding layer is a lead sleeve shielding layer.

Preferably, the buffer layer is a rigid plastic reinforcing layer, through densely arranging the through holes in the rigid plastic reinforcing layer in the circumferential direction, and a steel rope is arranged in each through hole.

Preferably, the isolation layer is a corona resistant coating.

Compared with the prior art, the beneficial effects of the utility model are that: has stronger mechanical strength, good corrosion resistance and abrasion resistance after the cable is combined, can carry out hydrophobic and waterproof operation on the outermost layer through the arrangement of the hydrophobic layer, the power supply inside and outside the cable can be isolated by the arrangement of the insulating layer, the external electromagnetism and the internal power supply electromagnetism can be isolated by the arrangement of the shielding layer, the influence of the external electromagnetism on the cable can be avoided, the influence of the internal electromagnetism in the cable on the external environment can be avoided, the mechanical strength and the structural firmness of the cable can be further improved through the arrangement of the buffer layer, after certain mechanical strength addition can be carried out through the arrangement of the reinforcing layer, through the arrangement of the flexible rubber layer, the pressure buffering is carried out on the inner part and the outer part of the cable, the condition that the multi-layer of the cable is broken and damaged due to rigid collision and folding is avoided, through the setting of isolation layer, can carry out corona internal isolation when the cable carries out high-voltage electricity and transmits.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

In the figure: 1. a hydrophobic layer; 2. an insulating layer; 3. a shielding layer; 4. a buffer layer; 5. an isolation layer; 6. a conductive cable; 7. a reinforcement layer; 8. a steel rope net layer; 9. a flexible rubber layer; 10. a steel cord.

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, the present invention provides a technical solution: the utility model provides a high strength transmission cable, it includes hydrophobic layer 1, insulating layer 2, shielding layer 3, buffer layer 4, isolation layer 5 and conductive cable 6 in proper order from outer to interior, be provided with back up coat 7 between insulating layer 2 and the shielding layer 3, be the even dense perforation of having of circumference in the buffer layer 4, all set up the steel cable 10 that cross-sectional diameter and perforation aperture are the same in every perforation, back up coat 7 is made by the integrative combination of meshwork's steel cable stratum reticulare 8 and the flexible rubber layer 9 that fuses with steel cable stratum reticulare 8 for form integrated back up coat 7.

The conductive cable 6 is formed by twisting a plurality of strands of aluminum wires with circular cross sections.

The hydrophobic layer 1 is made of water-blocking paste.

The insulating layer 2 is made of insulating silicone rubber.

The shielding layer 3 is a lead sleeve shielding layer 3.

The buffer layer 4 is a hard plastic reinforced layer, through densely arranging the through holes in the hard plastic reinforced layer in the circumferential direction, and a steel rope 10 is arranged in each through hole.

The isolation layer 5 is a corona resistant coating.

Through the technical scheme, the cable has stronger mechanical strength, the cable is good in corrosion resistance and wear resistance after being combined, the outermost layer can be subjected to water drainage and water isolation operation through the arrangement of the hydrophobic layer 1, the inside and the outside of the cable can be isolated by the arrangement of the insulating layer 2, the outside electromagnetism and the inside power electromagnetism can be isolated through the arrangement of the shielding layer 3, the influence of the outside electromagnetism on the cable can be avoided, the influence of the inside electromagnetism in the cable on the external environment can be avoided, the mechanical strength and the structural firmness of the cable can be further improved through the arrangement of the buffer layer 4, after certain mechanical strength addition is carried out through the arrangement of the reinforcing layer 7, the pressure buffering is carried out on the inside and the outside of the cable through the arrangement of the flexible rubber layer 9, the situation that the multilayer of the cable is broken and damaged due to rigid collision and folding is avoided, and through the arrangement of the insulating layer 5, when the, corona internal isolation is performed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A high strength power transmission cable characterized by: the cable comprises a hydrophobic layer, an insulating layer, a shielding layer, a buffer layer, an isolation layer and a conductive cable from outside to inside in sequence, wherein a reinforcing layer is arranged between the insulating layer and the shielding layer, penetrating holes are uniformly and densely distributed in the circumferential direction in the buffer layer, steel ropes with the same section diameters as the hole diameters of the penetrating holes are arranged in each penetrating hole, and the reinforcing layer is composed of a mesh-woven steel rope net layer and a flexible rubber layer fused with the steel rope net layer.

2. A high strength electrical transmission cable according to claim 1, wherein: the hydrophobic layer is made of water-blocking paste.

3. A high strength electrical transmission cable according to claim 1, wherein: the insulating layer is made of insulating polysiloxane rubber.

4. A high strength electrical transmission cable according to claim 1, wherein: the shielding layer is a lead sleeve shielding layer.

5. A high strength electrical transmission cable according to claim 1, wherein: the buffer layer is a rigid plastic reinforcing layer, through densely distributing the through holes in the rigid plastic reinforcing layer in the circumferential direction, and a steel rope is arranged in each through hole.

6. A high strength electrical transmission cable according to claim 1, wherein: the isolation layer is a corona resistant coating.

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