CN218351173U

CN218351173U - Fireproof cable with central control line group

Info

Publication number: CN218351173U
Application number: CN202222924701.7U
Authority: CN
Inventors: 王筱卿
Original assignee: Shanghai Xinyi Special Cable Co ltd
Current assignee: Shanghai Xinyi Special Cable Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-01-20
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to the technical field of electric wires and cables, and provides a fireproof cable with a central control line group, which comprises a central control line group, a plurality of electric power wire cores, an isolation coating layer and a metal protective layer, wherein the plurality of electric power wire cores are circumferentially distributed on the outer side of the central control line group, and the isolation coating layer and the metal protective layer are sequentially coated on the outer sides of the plurality of electric power wire cores from inside to outside; the central control line group consists of a line group unit, a filling layer, an isolating layer and a control line group protecting layer, wherein the filling layer, the isolating layer and the control line group protecting layer are sequentially coated outside the line group unit from inside to outside, the line group unit consists of two symmetrically arranged control line cores and line group external insulation coated outside the two symmetrical line cores, and the control line core consists of a control line core conductor, a control line core shielding layer and a control line core insulation layer. The utility model discloses can be integrated in same cable subassembly with electric power energy transmission and control signal transmission mutually independent, improve circuit utilization rate.

Description

Fireproof cable with central control line group

Technical Field

The utility model relates to a wire and cable technical field especially relates to a fireproof cable with central control group.

Background

The fireproof cable is a special wire cable, has excellent fireproof performance, is used for power energy transmission in key field facilities, can ensure the integrity of a power energy transmission line in an extreme environment, and strives for more precious time for rescuing lives, properties and data resources. With the continuous development of application ends, the requirements on the comprehensive performance of the fireproof cable are continuously improved.

The key field is generally related to the energy and data application requirements of high integration and has compact and narrow laying and installation line space. Therefore, the applied fireproof cables are required to continuously improve the utilization rate of the line space. The improvement of the current-carrying capacity of the cable, the reduction of the outer diameter of the cable and the increase of the types of components inside the cable are approaches for improving the space utilization rate of a line, but in practical application of the cable, physical and mechanical properties, electrical insulation properties, fire resistance and installation and laying properties are involved, and adjustment of structures or materials usually causes the trade-off of various properties of the cable, and finally influences the comprehensive performance of the cable.

How to balance various performance designs of the fireproof cable through comprehensive structure design and material selection to obtain reasonable comprehensive performance, so that the fireproof cable is more suitable for the key field with complex installation environment, and is the key direction of research in the field.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at selecting through comprehensive structural design and material, balanced fireproof cable's each item performance design obtains when having reasonable comprehensive properties, improves the suitability of fireproof cable in the key field that has the complicated environment of laying.

The utility model provides a fireproof cable with central control line group, which comprises a central control line group, a plurality of power line cores, an isolation coating layer and a metal protective layer, wherein the plurality of power line cores are circumferentially distributed on the outer side of the central control line group, and the isolation coating layer and the metal protective layer are sequentially coated on the outer sides of the plurality of power line cores from inside to outside; the central control line group consists of a line group unit, a filling layer, an isolating layer and a control line group protecting layer, wherein the filling layer, the isolating layer and the control line group protecting layer are sequentially coated outside the line group unit from inside to outside, the line group unit consists of two symmetrically arranged control line cores and line group external insulation coated outside the two symmetrical line cores, and the control line core consists of a control line core conductor, a control line core shielding layer and a control line core insulation layer.

Furthermore, in the fireproof cable with the central control line group, the control line core conductor is made of an annealed copper material, the control line core shield is made of a semiconductive crosslinked polyethylene material, and the control line core insulation is made of a flame-retardant crosslinked polyethylene material.

Further, in the fire-resistant cable having a central control wire group according to the present invention, the outer insulation of the wire group is made of a silicone rubber material.

Furthermore, in the fire-proof cable with the central control wire group, in the central control wire group, the filling layer is made of magnesium oxide powder, the isolation layer is made of mica tape material, and the control wire group protection layer is made of silicon rubber material.

Furthermore, the fireproof cable with the central control line group comprises a plurality of central filling strips, and the central filling strips are arranged in gaps formed between adjacent power wire cores and the central control line group.

Furthermore, the fireproof cable with the central control line group further comprises a plurality of circumferential filling strips, and the circumferential filling strips are arranged in gaps formed between adjacent power wire cores and the isolation coating.

Furthermore, in the fireproof cable with the central control line group, the power line core consists of the power conductor, and the power line core inner insulation and the power line core outer insulation which are sequentially coated outside the power conductor from inside to outside.

Furthermore, in the fireproof cable with the central control line group, the power conductor is made of an annealed copper material, the inner insulation of the wire core of the electric wire is made of a mica tape material, and the outer insulation of the wire core of the electric wire is made of a silicon rubber material.

Further, in the fire-resistant cable with the central control wire group, the isolation coating layer is made of mica tape material.

Furthermore, in the fire-proof cable with the central control wire group, the metal protective layer is made of annealed copper material.

The utility model discloses a fireproof cable with central control group has following beneficial effect:

1. through with a plurality of electric power sinle silk circumference distribution in the outside of central control group, transmit electric power energy and control signal transmission integration in same cable assembly, improved the circuit utilization ratio.

2. Through set up central filler strip in the clearance that adjacent power sinle silk and central control group formed, set up circumference filler strip in the clearance that adjacent power sinle silk and isolation cladding layer formed, improve cable overall structure's stability.

3. Through the setting of control sinle silk shielding, control sinle silk are insulating, winding external insulation, filling layer, isolation layer, control group protective layer, when improving central control group fire prevention temperature resistance performance, avoid producing the interact between power sinle silk and the control sinle silk, guarantee power energy transmission and control signal transmission's independence.

Drawings

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

Fig. 1 is a schematic structural diagram of the fireproof cable with the central control wire group according to the present invention.

Fig. 2 is a schematic structural diagram of the central control line set of the present invention.

Fig. 3 is a schematic structural diagram of the wire group unit of the central control wire group according to the present invention.

In the figure, 1-center control wire group, 11-wire group unit, 111-control wire core conductor, 112-control wire core shield, 113-control wire core insulation, 114-winding outer insulation, 12-filling layer, 13-isolation layer, 14-control wire group sheath, 2-power wire core, 21-power wire core conductor, 22-power wire core inner insulation, 23-power wire core outer insulation, 3-neutral filling strip, 4-circumference filling strip, 5-isolation coating layer, 6-metal sheath.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the fire-proof cable with a central control line group of the present embodiment includes a central control line group 1, a plurality of power cores 2, and an insulation coating layer 5 and a metal sheath layer 6.

Specifically, as shown in fig. 1, the plurality of power line cores 2 are circumferentially distributed on the outer side of the central control line group 1, and the isolation coating layer 5 and the metal protective layer 6 are sequentially coated on the outer sides of the plurality of power line cores 2 from inside to outside.

As shown in fig. 2, the central control line group 1 is composed of a line group unit 11, and a filling layer 12, an isolation layer 13 and a control line group protection layer 14 which are sequentially coated outside the line group unit from inside to outside, wherein, as shown in fig. 3, the line group unit 11 is composed of two symmetrically arranged control line cores and a line group external insulation 114 coated outside the two symmetric line cores, and the control line core is composed of a control line core conductor 111, and a control line core shield 112 and a control line core insulation 113 which are sequentially coated outside the control line core conductor 111 from inside to outside.

This embodiment is through distributing a plurality of power core circumference in the outside of central control group, and it is integrated in same cable assembly with electric power energy transmission and control signal transmission, improved the circuit utilization ratio.

In practical applications, in the fireproof cable with the central control wire group according to the embodiment, the control wire core conductor 111 is made of an annealed copper material, the control wire core shield 112 is made of a semiconductive crosslinked polyethylene material, and the control wire core insulation 113 is made of a flame retardant crosslinked polyethylene material.

In practical applications, in the fire-resistant cable with the central control wire set of the present embodiment, the wire set external insulation 114 is made of a silicon rubber material.

In practical applications, in the central control line group 1 of the fire-proof cable with the central control line group according to the embodiment, the filling layer 12 is made of magnesium oxide powder, the isolation layer 13 is made of mica tape material, and the control line group sheath 14 is made of silicon rubber material.

The setting of control sinle silk shielding, control sinle silk are insulating, winding external insulation, filling layer, isolation layer, control group sheath is passed through to this embodiment, when improving central control group fire prevention temperature resistance ability, avoids producing the mutual influence between power sinle silk and the control sinle silk, guarantees power energy transmission and control signal transmission's independence.

As shown in fig. 1, the fire-resistant cable with a central control line group of the present embodiment includes a plurality of center-filling strips 3, and the center-filling strips 3 are disposed in the gaps formed between the adjacent power cores 2 and the central control line group 1.

As shown in fig. 1, the fireproof cable with the central control line group in the embodiment further includes a plurality of circumferential filler strips 4, and the circumferential filler strips 4 are disposed in gaps formed between adjacent power wire cores 2 and the isolation coating 5.

The central filling strip is arranged in the gap formed by the adjacent power wire cores and the central control line group, and the circumferential filling strip is arranged in the gap formed by the adjacent power wire cores and the isolation cladding layer, so that the stability of the overall structure of the cable is improved.

As shown in fig. 1, the power core 2 of the fireproof cable with the central control line group of the embodiment is composed of a power conductor 21, and a power core inner insulation 22 and a power core outer insulation 23 which are sequentially coated outside the power conductor 21 from inside to outside. The power conductor 21 is made of an annealed copper material, the wire core inner insulation 22 is made of a mica tape material, and the power wire core outer insulation 23 is made of a silicon rubber material.

In practical application, the insulation coating layer 5 of the fireproof cable with the central control wire group is formed by lapping and wrapping mica tapes. The metal protective layer 6 is made of annealed copper material.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The fireproof cable with the central control line group is characterized by comprising the central control line group, a plurality of power wire cores, an isolation coating layer and a metal protective layer, wherein the power wire cores are circumferentially distributed on the outer side of the central control line group, and the isolation coating layer and the metal protective layer are sequentially coated on the outer sides of the power wire cores from inside to outside; the central control line group consists of a line group unit, a filling layer, an isolating layer and a control line group protecting layer, wherein the filling layer, the isolating layer and the control line group protecting layer are sequentially coated outside the line group unit from inside to outside, the line group unit consists of two symmetrically arranged control line cores and line group external insulation coated outside the two symmetrical line cores, and the control line core consists of a control line core conductor, a control line core shielding layer and a control line core insulation layer.

2. The flameproof cable of claim 1, with the central control line group, wherein the control line core conductor is made of a copper material in an annealed state, the control line core shield is made of a semiconductive crosslinked polyethylene material, and the control line core insulation is made of a flame retardant crosslinked polyethylene material.

3. The flameproof cable with a central control wire group according to claim 1, characterized in that the wire group outer insulation is made of a silicone rubber material.

4. The fire cable having a center control wire set according to claim 1, wherein the center control wire set is formed with a filling layer made of magnesium oxide powder, an insulation layer made of mica tape material, and a control wire set covering layer made of silicone rubber material.

5. The fire rated cable having a center control wire set of claim 1, wherein the fire rated cable having a center control wire set includes a plurality of center filler strips disposed within gaps formed between adjacent power cores and the center control wire set.

6. The fire rated cable of claim 1 having a cenfral control line group further comprising a plurality of circumferential filler strips disposed within gaps formed between adjacent power cores and the insulating cladding.

7. The fire cable of claim 1, wherein the power core comprises a power conductor and a power core inner insulation and a power core outer insulation sequentially coated outside the power conductor from inside to outside.

8. The fire cable having a center control wire group according to claim 7, wherein the power conductor is made of a copper material in an annealed state, the inner insulation of the wire core is made of a mica tape material, and the outer insulation of the power core is made of a silicone rubber material.

9. The fire cable with a center control wire set as in claim 1, wherein the insulation coating layer is made of mica tape material.

10. The fire resistant cable of claim 1 wherein the metal sheath is made of a copper material in an annealed state.