CN213877656U

CN213877656U - Crosslinked polyethylene insulated cable

Info

Publication number: CN213877656U
Application number: CN202022640882.1U
Authority: CN
Inventors: 管荣华
Original assignee: Harbin Yuelong Wire And Cable Co ltd
Current assignee: Harbin Yuelong Wire And Cable Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-03
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a crosslinked polyethylene insulated cable, including the cable core, the surface cladding of cable core has electromagnetic interference resistance layer, electromagnetic interference resistance layer's surface cladding has the protective layer, the surface cladding of protective layer has the flame retardant coating, the surface cladding of flame retardant coating have crosslinked polyethylene insulating layer the protective layer includes the enhancement layer, the surface cladding of enhancement layer have the waterproof layer the flame retardant coating includes first mica paper layer, magnesium oxide fire prevention grained layer has been laid on the surface of first mica paper layer, the surface cladding of magnesium oxide fire prevention grained layer has second mica paper layer. The utility model discloses a cooperation of cable core, electromagnetic interference resistance layer, protective layer, flame retardant coating and crosslinked polyethylene insulating layer is used, can possess good fire-resistant and fire behavior for the cable, possesses good use strength moreover, and the emergence fracture easily can not have prolonged the life of cable, has brought very big facility for communication work.

Description

Crosslinked polyethylene insulated cable

Technical Field

The utility model relates to the technical field of cables, specifically a crosslinked polyethylene insulated cable.

Background

The cable is generally a cable similar to a rope and formed by twisting a plurality of or a plurality of groups of leads (at least two leads in each group), wherein each group of leads are mutually insulated and are usually twisted around a center, the whole cable is coated with a highly-insulated covering layer, the cable has the characteristics of internal electrification and external insulation, the crosslinked polyethylene insulation is a cable which is made by using the crosslinked polyethylene insulation as an external layer of the cable by using a chemical method or a physical method to change a linear molecular structure into a three-dimensional reticular structure and change a thermoplastic material into a thermosetting material, the working temperature is increased from 70 ℃ to 90 ℃, the material performance is obviously improved, but the existing crosslinked polyethylene insulation cable has poor fire resistance and use strength, good use performance cannot be provided for the cable, and the service life of the cable is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crosslinked polyethylene insulated cable possesses long service life's advantage, and it is relatively poor with use intensity to have solved its fire resistance of current crosslinked polyethylene insulated cable, can not provide good performance for the cable, has reduced cable life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crosslinked polyethylene insulated cable, includes the cable core, the surface cladding of cable core has electromagnetic interference resistance layer, the surface cladding on electromagnetic interference resistance layer has the protective layer, the surface cladding of protective layer has the flame retardant coating, the surface cladding of flame retardant coating has crosslinked polyethylene insulating layer.

Preferably, the protective layer comprises a reinforcing layer, and a waterproof layer is coated on the surface of the reinforcing layer.

Preferably, the fire-proof layer comprises a first mica paper layer, a magnesium oxide fire-proof particle layer is laid on the surface of the first mica paper layer, and a second mica paper layer is coated on the surface of the magnesium oxide fire-proof particle layer.

Preferably, the reinforcing layer is made of a stainless steel metal mesh, and the waterproof layer is made of a tetrafluoroethylene material.

Preferably, the electromagnetic interference prevention layer is made by winding an aluminum foil material, and the surface of the crosslinked polyethylene insulation layer is sprayed with an anti-ultraviolet agent.

Preferably, a label is applied to the surface of the crosslinked polyethylene insulating layer, and product information is sprayed on the surface of the label.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cooperation of cable core, electromagnetic interference resistance layer, protective layer, flame retardant coating and crosslinked polyethylene insulating layer is used, can possess good fire-resistant and fire behavior for the cable, possesses good use strength moreover, and the emergence fracture easily can not have prolonged the life of cable, has brought very big facility for communication work.

2. The utility model discloses an adopt the electromagnetic interference resistance layer that the winding of aluminium foil material was made, can possess good electromagnetic interference resistance performance, through the enhancement layer that adopts stainless steel metal mesh to make, can provide good use strength and stretch-proofing performance for the cable, through the waterproof layer that adopts the tetrafluoroethylene material to make, can provide good waterproof performance for the cable, through the flame retardant coating that adopts first mica paper layer, magnesium oxide fire prevention grained layer and second mica paper layer preparation to form, can provide good fire behavior for the cable.

Drawings

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

FIG. 2 is a right-side view of the structure of the present invention;

FIG. 3 is a schematic view of the connection structure inside the protective layer of the present invention;

fig. 4 is a schematic view of the internal connection structure of the fireproof layer of the present invention.

In the figure: 1. a cable core; 2. an electromagnetic interference preventing layer; 3. a protective layer; 301. a reinforcing layer; 302. a waterproof layer; 4. a fire barrier layer; 401. a first mica paper layer; 402. a layer of magnesium oxide fire-blocking particles; 403. a second mica paper layer; 5. and a crosslinked polyethylene insulating layer.

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.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

Referring to fig. 1 to 4, a cross-linked polyethylene insulated cable includes a cable core 1, the surface of the cable core 1 is coated with an electromagnetic interference prevention layer 2, the electromagnetic interference prevention layer 2 is made by winding an aluminum foil material, the electromagnetic interference prevention layer 2 made by winding the aluminum foil material has good electromagnetic interference prevention performance, an anti-ultraviolet agent is sprayed on the surface of a cross-linked polyethylene insulation layer 5, the surface of the electromagnetic interference prevention layer 2 is coated with a protection layer 3, the protection layer 3 includes a reinforcement layer 301, the surface of the reinforcement layer 301 is coated with a waterproof layer 302, the reinforcement layer 301 is made of a stainless steel metal mesh, the reinforcement layer 301 made of the stainless steel metal mesh can provide good use strength and tensile resistance for the cable, the waterproof layer 302 is made of tetrafluoroethylene material, the waterproof layer 302 made of the tetrafluoroethylene material can provide good waterproof performance for the cable, the surface of the protective layer 3 is coated with a fireproof layer 4, the fireproof layer 4 comprises a first mica paper layer 401, a magnesium oxide fireproof particle layer 402 is laid on the surface of the first mica paper layer 401, the surface of the magnesium oxide fireproof particle layer 402 is coated with a second mica paper layer 403, the fireproof layer 4 is prepared by adopting the first mica paper layer 401, the magnesium oxide fireproof particle layer 402 and the second mica paper layer 403, good fireproof performance can be provided for a cable, the surface of the fireproof layer 4 is coated with a cross-linked polyethylene insulating layer 5, a label is attached to the surface of the cross-linked polyethylene insulating layer 5, product information is sprayed on the surface of the label, and the cable core 1, the electromagnetic interference preventing layer 2, the protective layer 3, the fireproof layer 4 and the cross-linked polyethylene insulating layer 5 are matched for use, so that the cable has good fireproof and fireproof performance and good use strength and cannot easily break, the service life of the cable is prolonged, and great convenience is brought to communication work.

During the use, through adopting the electromagnetic interference resistance layer 2 that the winding of aluminium foil material was made, can possess good electromagnetic interference resistance performance, through the enhancement layer 301 that adopts stainless steel metal mesh to make, can provide good service strength and stretch-proofing performance for the cable, through the waterproof layer 302 that adopts the tetrafluoroethylene material to make, can provide good waterproof performance for the cable, through adopting first mica paper layer 401, magnesium oxide fire prevention grained layer 402 and the flame retardant coating 4 that second mica paper layer 403 preparation formed, can provide good fire behavior for the cable.

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

1. The utility model provides a crosslinked polyethylene insulated cable, includes cable core (1), its characterized in that: the surface cladding of cable core (1) has anti-electromagnetic interference layer (2), the surface cladding on anti-electromagnetic interference layer (2) has protective layer (3), the surface cladding of protective layer (3) has flame retardant coating (4), the surface cladding of flame retardant coating (4) has crosslinked polyethylene insulating layer (5).

2. A crosslinked polyethylene insulated cable according to claim 1, characterized in that: the protective layer (3) comprises a reinforcing layer (301), and a waterproof layer (302) is coated on the surface of the reinforcing layer (301).

3. A crosslinked polyethylene insulated cable according to claim 1, characterized in that: the fireproof layer (4) comprises a first mica paper layer (401), a magnesium oxide fireproof particle layer (402) is laid on the surface of the first mica paper layer (401), and a second mica paper layer (403) is coated on the surface of the magnesium oxide fireproof particle layer (402).

4. A crosslinked polyethylene insulated cable according to claim 2, characterized in that: the reinforcing layer (301) is made of a stainless steel metal net, and the waterproof layer (302) is made of a tetrafluoroethylene material.

5. A crosslinked polyethylene insulated cable according to claim 1, characterized in that: the electromagnetic interference prevention layer (2) is made of an aluminum foil material in a winding mode, and an anti-ultraviolet agent is sprayed on the surface of the cross-linked polyethylene insulation layer (5).

6. A crosslinked polyethylene insulated cable according to claim 1, characterized in that: and a label is pasted on the surface of the crosslinked polyethylene insulating layer (5), and product information is sprayed on the surface of the label.