CN210805315U

CN210805315U - Multi-layer flame-retardant cable

Info

Publication number: CN210805315U
Application number: CN201922438569.7U
Authority: CN
Inventors: 肖光文; 黄海生
Original assignee: Chongqing Lilan Electric Co ltd
Current assignee: Chongqing Lilan Electric Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-19
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to the technical field of cables, in particular to a multilayer flame-retardant cable, which comprises a cable body, wherein the cable body comprises a protective layer, a fireproof layer, an isolation layer, a mica tape insulating layer, a PE insulating layer and a conductor, the protective layer is positioned at the outermost side, the fireproof layer is positioned inside the protective layer, the isolation layer is positioned inside the fireproof layer, and the mica tape insulating layer is positioned inside the isolation layer; the utility model discloses a setting of cable body, inoxidizing coating, flame retardant coating, isolation layer, mica tape insulating layer, PE insulating layer and conductor makes the fire-retardant cable of multilayer, and it is good to possess fire behaviour, can isolate external heat, and the advantage that insulating properties is good, and it is not high to have solved current cable fire behaviour, can't protect the cable meetting the condition such as conflagration, can't isolate external heat, leads to the inside temperature of cable higher, and the relatively poor problem of insulating properties.

Description

Multi-layer flame-retardant cable

Technical Field

The utility model relates to a cable technical field specifically is a fire-retardant cable of multilayer.

Background

The cable is a general term for articles such as optical cables and electric cables, has a plurality of purposes, is mainly used for controlling installation, connecting equipment, transmitting electric power and the like, is a common and indispensable object in daily life, and needs to be installed carefully due to the fact that the cable is electrified.

Current cable simple structure, the number of piles is single, and the fire behaviour that leads to the cable is not high, meetting the condition such as conflagration, can't protect the cable, and can't completely cut off external heat, leads to the cable to use the back in hot day for a long time, and the inside of external heat easy infiltration cable makes the inside heat of cable rise, and current cable insulating properties is general, for this reason, we have proposed a fire-retardant cable of multilayer to solve the problem that above-mentioned content exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant cable of multilayer, it is good to possess fire behaviour, can completely cut off external heat, and insulating properties is good advantage, and it is not high to have solved current cable fire behaviour, can't protect the cable meetting the condition such as conflagration, can't completely cut off external heat, leads to the inside temperature of cable higher, and the relatively poor problem of insulating properties.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant cable of multilayer, includes the cable body, the inside of cable body includes inoxidizing coating, flame retardant coating, isolation layer, mica tape insulating layer, PE insulating layer and conductor, the inoxidizing coating is located the outside, the flame retardant coating is located the inside of inoxidizing coating, the isolation layer is located the inside of flame retardant coating, mica tape insulating layer is located the inside of isolation layer, the PE insulating layer is located the inside of mica tape insulating layer, the conductor is located the inside of PE insulating layer.

Preferably, the protective layer may be one of a sheath and a tooth-shaped spacer, the protective layer is made of an insulating material, and the surface of the protective layer is a smooth curved surface.

Preferably, the material of the fire-proof layer is one of fire-proof mud or fire-proof rubber, and the thickness of the fire-proof layer is greater than that of the protective layer.

Preferably, the material of the isolation layer is one of a thick plastic film or a felt, and the thickness of the isolation layer is smaller than that of the fire-proof layer.

Preferably, the number of the PE insulating layers is five, the material thereof is a thermoplastic resin, and the thickness of the PE insulating layer is one of three specifications of 0.5, 0.6, and 0.7 mm.

Preferably, the inside of inoxidizing coating links with the surface adhesion of flame retardant coating, the inside of flame retardant coating links with the surface adhesion of isolation layer, the inside of isolation layer links with the surface adhesion of mica tape insulating layer, the inside of mica tape insulating layer links with the surface adhesion of PE insulating layer.

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

the utility model discloses a setting of cable body, inoxidizing coating, flame retardant coating, isolation layer, mica tape insulating layer, PE insulating layer and conductor makes the fire-retardant cable of multilayer, and it is good to possess fire behaviour, can isolate external heat, and the advantage that insulating properties is good, and it is not high to have solved current cable fire behaviour, can't protect the cable meetting the condition such as conflagration, can't isolate external heat, leads to the inside temperature of cable higher, and the relatively poor problem of insulating properties.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a schematic top view of the structure of the present invention.

In the figure: 1. a cable body; 101. a protective layer; 102. a fire barrier layer; 103. an isolation layer; 104. a mica tape insulating layer; 105. a PE insulating layer; 106. a conductor.

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. 1-2, a multilayer flame retardant cable includes a cable body 1, the interior of the cable body 1 includes a protective layer 101, a flame retardant layer 102, an isolation layer 103, a mica tape insulation layer 104, a PE insulation layer 105 and a conductor 106, the protective layer 101 is located on the outermost side, the flame retardant layer 102 is located inside the protective layer 101, the isolation layer 103 is located inside the flame retardant layer 102, the mica tape insulation layer 104 is located inside the isolation layer 103, the PE insulation layer 105 is located inside the mica tape insulation layer 104, the conductor 106 is located inside the PE insulation layer 105, and through the arrangement of the cable body 1, the protective layer 101, the flame retardant layer 102, the isolation layer 103, the mica tape insulation layer 104, the PE insulation layer 105 and the conductor 106, the multilayer flame retardant cable has the advantages of good flame retardant performance, being capable of isolating external heat and good in insulation performance, solving the problems that the existing cable has low flame retardant performance and cannot protect the cable, can't completely cut off external heat, lead to the inside temperature of cable higher, and the relatively poor problem of insulating properties.

In this embodiment, the protection layer 101 may be one of a sheath and a tooth-shaped isolation sleeve, and the protection layer 101 is made of an insulating material and has a smooth curved surface, so as to protect the cable body 1 and reduce the friction force on the surface of the cable body 1.

In this embodiment, the material of the fireproof layer 102 is one of fireproof mud and fireproof rubber, and the thickness of the fireproof layer 102 is greater than that of the protective layer 101, so that the flame retardant performance of the cable body 1 is improved.

In this embodiment, the material of isolation layer 103 is one of thick plastic film or linoleum, and the thickness of isolation layer 103 will be less than flame retardant coating 102's thickness, protects cable body 1, can completely cut off external heat, prevents that external heat from causing the influence to cable body 1 inside.

In this embodiment, the number of the PE insulating layers 105 is five, the material of the PE insulating layers 105 is thermoplastic resin, and the thickness of the PE insulating layers 105 is one of three specifications of 0.5, 0.6 and 0.7mm, so that the insulating property of the cable body 1 can be improved, and the safety of the cable body 1 can be enhanced.

In this embodiment, the inside of the protective layer 101 is adhered to the surface of the fireproof layer 102, the inside of the fireproof layer 102 is adhered to the surface of the isolation layer 103, the inside of the isolation layer 103 is adhered to the surface of the mica tape insulation layer 104, and the inside of the mica tape insulation layer 104 is adhered to the surface of the PE insulation layer 105, so that the conductor 106 is located inside the cable body 1, and the safety is improved.

The theory of operation can protect cable body 1 to reduce the frictional force on cable body 1 surface, make cable body 1's fire behaviour promote, protect cable body 1, can insulate external heat, prevent that external heat from causing the influence to cable body 1 is inside, can promote cable body 1's insulating properties, reinforcing cable body 1's security makes conductor 106 be located cable body 1's inside, and its security obtains promoting.

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. A multi-layer flame-retardant cable comprises a cable body (1), and is characterized in that: the cable comprises a cable body (1) and is characterized in that the inside of the cable body (1) comprises a protective layer (101), a fireproof layer (102), an isolation layer (103), a mica tape insulating layer (104), a PE insulating layer (105) and a conductor (106), the protective layer (101) is located on the outermost side, the fireproof layer (102) is located inside the protective layer (101), the isolation layer (103) is located inside the fireproof layer (102), the mica tape insulating layer (104) is located inside the isolation layer (103), the PE insulating layer (105) is located inside the mica tape insulating layer (104), and the conductor (106) is located inside the PE insulating layer (105).

2. A multilayer flame retardant cable according to claim 1, characterized in that: the protective layer (101) can be one of a sheath or a tooth-shaped isolation sleeve, the protective layer (101) is made of insulating materials, and the surface of the protective layer is a smooth curved surface.

3. A multilayer flame retardant cable according to claim 1, characterized in that: the material of the fire-proof layer (102) is one of fire-proof mud or fire-proof rubber, and the thickness of the fire-proof layer (102) is larger than that of the protective layer (101).

4. A multilayer flame retardant cable according to claim 1, characterized in that: the material of the isolation layer (103) is one of a thick plastic film or a felt, and the thickness of the isolation layer (103) is smaller than that of the fire-proof layer (102).

5. A multilayer flame retardant cable according to claim 1, characterized in that: the number of the PE insulating layers (105) is five, the material of the PE insulating layers is thermoplastic resin, and the thickness of the PE insulating layers (105) is one of three specifications of 0.5 mm, 0.6 mm and 0.7 mm.

6. A multilayer flame retardant cable according to claim 1, characterized in that: the inside of inoxidizing coating (101) links with the surface adhesion of flame retardant coating (102), the inside of flame retardant coating (102) links with the surface adhesion of isolation layer (103), the inside of isolation layer (103) links with the surface adhesion of mica tape insulating layer (104), the inside of mica tape insulating layer (104) links with the surface adhesion of PE insulating layer (105).