CN218729939U

CN218729939U - Plastic insulating flame-retardant anti-interference control cable

Info

Publication number: CN218729939U
Application number: CN202222676721.7U
Authority: CN
Inventors: 吴万明; 胡月香; 王晓春; 邵兰香
Original assignee: Yangzhou Yangzi Cable Manufacturing Co ltd
Current assignee: Yangzhou Yangzi Cable Manufacturing Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-24
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a fire-retardant anti-interference control cable of plastics insulation in control cable technical field, including the outer insulating layer, the inside packing of outer insulating layer is equipped with the filler, be equipped with five groups of cable cores in the filler, five groups of cable core outer walls all are equipped with the inner insulating layer, the inner insulating layer outer wall is equipped with the internal shield layer, the outer insulating layer outer wall is equipped with the external shield, the external shield outer wall is equipped with fire-retardant layer, fire-retardant layer outer wall is equipped with the compressive layer, the compressive layer outer wall is equipped with high temperature resistant layer, high temperature resistant layer outer wall is equipped with the protective layer, this practicality can improve control cable's interference killing feature under the cooperation of internal shield layer and external shield layer, improve control cable's signal transmission function, the utility model discloses can improve control cable's fire behavior under fire-retardant layer's effect, can improve control cable's high temperature resistance under high temperature resistant layer's effect, improve control cable's practicality.

Description

Plastic insulating flame-retardant anti-interference control cable

Technical Field

The utility model relates to a control cable technical field specifically is a fire-retardant anti-interference control cable of plastics insulation.

Background

At present, with the development of scientific technology, various industries are developed towards industrialization and electronization, which means that the using amount of cables is greatly increased, and the control cable is a polyvinyl chloride insulation and polyvinyl chloride sheath control cable suitable for industrial and mining enterprises, energy traffic departments, and occasions such as control and protection lines with the AC rated voltage of below 450/750 volts.

When the control cable is used, the control cable is easily interfered by the outside world to influence the signal transmission of the control cable, and the flame retardant property of the existing control cable is general to influence the use of the control cable, so that the plastic insulating flame-retardant anti-interference control cable is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant anti-interference control cable of plastics insulation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant anti-interference control cable of plastics insulation, includes the outer insulating layer, the inside packing of outer insulating layer is equipped with the filler, be equipped with five cable cores in the filler, five groups the cable core outer wall all is equipped with the inner insulating layer, the inner insulating layer outer wall is equipped with the internal shield layer, the outer insulating layer outer wall is equipped with the outer shielding layer, the outer shielding layer outer wall is equipped with fire-retardant layer, fire-retardant layer outer wall is equipped with the compressive layer, the compressive layer outer wall is equipped with high temperature resistant layer, the high temperature resistant layer outer wall is equipped with the protective layer.

Furthermore, the compression layer is internally provided with a plurality of groups of first reinforcing ribs, the plurality of groups of first reinforcing ribs are distributed in the compression layer in an annular array manner, and a plurality of groups of second reinforcing ribs are arranged between every two side walls of the first reinforcing ribs.

Further, the filler is a glass fiber filling rope.

Furthermore, the flame-retardant layer is a halogen-free low-smoke flame-retardant polyolefin material.

Furthermore, the inner insulating layer and the outer insulating layer are both made of halogen-free flame-retardant irradiation cross-linked polyethylene insulating materials.

Further, the protective layer is made of halogen-free irradiation cross-linked polyolefin material.

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

1. this practicality can improve control cable's interference killing feature under the cooperation of internal shield layer and outer shielding layer, improves control cable's signal transmission function, this practicality can improve control cable's fire behaviour under fire-retardant layer's effect, can improve control cable's high temperature resistance ability under the effect on high temperature resistant layer, improves control cable's practicality.

2. This practicality can make control cable have compressive property under the cooperation of anti-compression layer, first strengthening rib and second strengthening rib, can prevent that the extrusion that external force caused from making the broken cracked condition of cable emergence, improves control cable's life.

Drawings

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

fig. 2 is the schematic diagram of the internal structure of the anti-pressure layer of the present invention.

In the figure: 1. a cable core; 2. an inner insulating layer; 3. an inner shield layer; 4. a filler; 5. an outer insulating layer; 6. an outer shield layer; 7. a flame retardant layer; 8. a pressure resistant layer; 9. a first reinforcing rib; 10. a second reinforcing rib; 11. a high temperature resistant layer; 12. and a protective 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.

Example 1:

referring to fig. 1, the present invention provides a technical solution: the utility model provides a fire-retardant anti-interference control cable of plastics insulation, including outer insulation layer 5, the inside packing of outer insulation layer 5 is equipped with filler 4, filler 4 is the glass fiber filling rope, be equipped with five cable cores 1 in the filler 4, five cable cores 1 outer wall all is equipped with inner insulating layer 2, inner insulating layer 2 outer wall is equipped with inner shield layer 3, outer insulation layer 5 outer wall is equipped with outer shielding layer 6, can improve control cable's interference killing feature under inner shielding layer 3 and outer shielding layer 6's cooperation, control cable's signal transmission function is improved, inner insulating layer 2 and outer insulation layer 5 all adopt halogen-free fire-retardant irradiation crosslinked polyethylene insulating material, outer shielding layer 6 outer wall is equipped with fire-retardant layer 7, fire-retardant layer 7 is halogen-free low smoke flame retardant polyolefin material, can improve control cable's fire behaviour under fire-retardant layer 7's effect, halogen-free low smoke flame retardant polyolefin material's fire-retardant efficiency is good, fire-retardant layer 7 outer wall is equipped with anti-pressure layer 8, anti-pressure layer 8 outer wall is equipped with high temperature resistant layer 11, can improve control cable's high temperature resistance under high temperature resistant layer 11's effect, high temperature resistant layer 11 is equipped with the protective layer 12, fire-retardant protection layer 12 has the polyolefin protective layer 12, it carries out the protection layer to carry out the effect to halogen-free fire-retardant cable protection.

Referring to fig. 1-2, a plurality of groups of first reinforcing ribs 9 are arranged inside the compression-resistant layer 8, the plurality of groups of first reinforcing ribs 9 are distributed in the compression-resistant layer 8 in an annular array, a plurality of groups of second reinforcing ribs 10 are arranged between every two side walls of the plurality of groups of first reinforcing ribs 9, and the compression-resistant layer 8, the first reinforcing ribs 9 and the second reinforcing ribs 10 are matched to enable the control cable to have compression resistance, so that the situation that the cable is damaged and broken due to extrusion caused by external force can be prevented, and the service life of the control cable is prolonged.

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 fire-retardant anti-interference control cable of plastic insulation, includes outer insulating layer (5), its characterized in that: outer insulating layer (5) inside packing is equipped with filler (4), be equipped with five cable cores (1) in filler (4), five groups cable core (1) outer wall all is equipped with inner insulating layer (2), inner insulating layer (2) outer wall is equipped with inner shield layer (3), outer insulating layer (5) outer wall is equipped with outer shielding layer (6), outer shielding layer (6) outer wall is equipped with fire-retardant layer (7), fire-retardant layer (7) outer wall is equipped with crushing layer (8), crushing layer (8) outer wall is equipped with high temperature resistant layer (11), high temperature resistant layer (11) outer wall is equipped with protective layer (12).

2. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the pressure resistant layer (8) is internally provided with a plurality of groups of first reinforcing ribs (9), the plurality of groups of first reinforcing ribs (9) are distributed in the pressure resistant layer (8) in an annular array manner, and a plurality of groups of second reinforcing ribs (10) are arranged between every two side walls of the first reinforcing ribs (9).

3. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the filler (4) is a glass fiber filling rope.

4. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the flame-retardant layer (7) is made of halogen-free low-smoke flame-retardant polyolefin material.

5. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the inner insulating layer (2) and the outer insulating layer (5) are both made of halogen-free flame-retardant irradiation cross-linked polyethylene insulating materials.

6. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the protective layer (12) is made of halogen-free irradiation cross-linked polyolefin material.