CN218939263U

CN218939263U - Super-flexible fireproof cable

Info

Publication number: CN218939263U
Application number: CN202220166795.3U
Authority: CN
Inventors: 张明宇; 高国彪; 任世伟; 张欣; 高利新; 钱俊杰
Original assignee: Tianjin Ruiyuan Cable Co ltd
Current assignee: Tianjin Ruiyuan Cable Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2023-04-28
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses an ultra-flexible fireproof cable which comprises at least one wire core unit and a protection unit, wherein the wire core unit comprises a conductor core, a fireproof layer and an insulating layer, the conductor core is made of a fifth copper conductor, the fireproof layer coats the conductor core, and the insulating layer coats the fireproof layer; the protection unit coats the wire core unit, and the fireproof layer and the insulating layer meet the fireproof and electrical safety requirements of the cable; under the condition of ensuring fireproof performance, the cable adopts the fifth type conductor as the conductor core, has no rigid copper, aluminum sheath and other hard materials, so that the cable can be moved randomly and bent randomly, is convenient to lay and has strong reliability and good practicability.

Description

Super-flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, in particular to an ultra-soft fireproof cable.

Background

Along with the rapid development of national economy and the continuous improvement of the living standard of people, the social electricity consumption is greatly increased. The existing fireproof cable comprises a rigid fireproof cable and a flexible fireproof cable, wherein the rigid fireproof cable adopts magnesium oxide as an insulating material and a copper pipe as a sheath, and can only be used for fixedly laying, and has the advantages of complex bending operation and large bending radius. The flexible fireproof cable adopts an aluminum pipe or a copper pipe sheath, is softer than the rigid fireproof cable, but can be fixedly laid, and has the same bending radius as the rigid fireproof cable.

At present, no matter a rigid fireproof cable or a flexible fireproof cable, the cable can be fixedly laid, cannot be moved after being laid, is complex in bending operation, and is easy to damage insulation in the laying process.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the super-flexible fireproof cable which can be moved at will and bent at will.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

in order to solve the technical problems, the super-flexible fireproof cable comprises at least one wire core unit and a protection unit, wherein the wire core unit comprises a conductor core, a fireproof layer and an insulating layer, the conductor core is made of a fifth copper conductor, the fireproof layer coats the conductor core, and the insulating layer coats the fireproof layer; the protection unit wraps the wire core unit.

Optionally, the protection unit includes a glass fiber tape layer and an outer protection layer, the glass fiber tape layer coats the core unit, and the outer protection layer coats the glass fiber tape layer.

Optionally, the glass fiber tape layer is an alkali-free glass fiber tape.

Optionally, the material of the outer protective layer is high flame retardant halogen-free low smoke polyolefin.

Optionally, the refractory layer is a synthetic mica tape, and the refractory layer is wound outside the conductor core.

Optionally, the covering rate of the refractory layer is 20% -25%.

Optionally, the insulating layer is made of ceramic polyolefin.

Optionally, the super-flexible fireproof cable further comprises a filling layer, and the filling layer is filled between the protection unit and the core unit.

Optionally, the material of the filling layer is high flame retardant halogen-free low smoke polyolefin.

Optionally, the four wire core units are twisted and arranged.

The utility model has the beneficial effects that: according to the super-flexible fireproof cable provided by the utility model, as the cable core unit comprises the conductor core, the fireproof layer and the insulating layer, the conductor core is made of a fifth copper conductor, the fireproof layer coats the conductor core, and the insulating layer coats the fireproof layer; the protection unit coats the wire core unit, and the fireproof layer and the insulating layer meet the fireproof requirement of the cable; under the condition of ensuring fireproof performance, the cable adopts the fifth type conductor as the conductor core, has no hard materials such as copper and aluminum jackets with larger rigidity, can be moved at will and bent at will, is safe, reliable and convenient to lay, and has good practicability.

Drawings

Fig. 1 is a cross-sectional view of an ultra-flexible fire-resistant cable provided in an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 1, an ultra-flexible fireproof cable of the present embodiment includes four core units and a protection unit, where the four core units are twisted, and it is easy to understand that the number of core units is selected according to actual needs, and in other embodiments, the number of core units is at least one. Specifically, the wire core unit comprises a conductor core 1, a fire-resistant layer 2 and an insulating layer 3, wherein the conductor core 1 is made of a fifth type of copper conductor, and the conductor meets the requirements of the fifth type of conductor in the GB/T3956 standard.

The refractory layer 2 of this embodiment coats the conductor core 1, the refractory layer 2 is synthetic mica tape, the refractory layer 2 is around setting up in the outside of conductor core 1, the rate of covering of refractory layer 2 is 20% -25%. It should be noted that the number of layers of the synthetic mica tape may be selected according to practical needs, and in this embodiment, the outer portion of the conductor core 1 is lapped and wrapped with four layers of synthetic mica tape, that is, four layers of synthetic mica together form the refractory layer 2 of this embodiment. The insulating layer 3 of the present embodiment coats the refractory layer 2; the insulating layer 3 is made of ceramic polyolefin, and the insulating layer 3 is extruded and molded outside the refractory layer 2 through an extruder.

Further, the protection unit of this embodiment wraps the core unit. Specifically, the protection unit includes a glass fiber tape layer 4 and an outer protection layer 5, the glass fiber tape layer 4 coats the core unit, and the outer protection layer 5 coats the glass fiber tape layer 4. In this embodiment, the glass fiber tape layer 4 is an alkali-free glass fiber tape, and the material of the outer protective layer 5 is high flame retardant halogen-free low smoke polyolefin.

Further, the super-flexible fireproof cable of the present embodiment further includes a filling layer 6, and the filling layer 6 is filled between the protection unit and the core unit. The material of the filling layer 6 is high flame retardant halogen-free low smoke polyolefin.

According to the super-flexible fireproof cable provided by the embodiment, as the cable core unit comprises the conductor core 1, the fireproof layer 2 and the insulating layer 3, the conductor core 1 is made of a fifth copper conductor, the fireproof layer 2 coats the conductor core 1, and the insulating layer 3 coats the fireproof layer 2; the protection unit coats the wire core unit, and the fireproof layer 2 and the insulating layer 3 meet the fireproof requirement of the cable; under the condition that the fireproof performance of the cable is guaranteed, a fifth type of conductor is adopted as the conductor core 1, and hard materials such as copper and aluminum jackets with high rigidity are not adopted, so that the cable can be moved at will and bent at will, and the cable is convenient to lay, safe and reliable and has good practicability.

The device of the present utility model is not limited to the examples in the specific embodiments, and those skilled in the art can obtain other embodiments according to the technical solutions of the present utility model, and it is also within the scope of the technical innovation and protection of the present utility model.

Claims

1. The super-flexible fireproof cable is characterized by comprising at least one wire core unit and a protection unit, wherein the wire core unit comprises a conductor core, a fireproof layer and an insulating layer, the conductor core is made of a fifth copper conductor, the fireproof layer coats the conductor core, and the insulating layer coats the fireproof layer; the protection unit wraps the wire core unit;

the protection unit comprises a glass fiber tape layer and an outer protection layer, wherein the glass fiber tape layer coats the wire core unit, and the outer protection layer coats the glass fiber tape layer;

the glass fiber tape layer is an alkali-free glass fiber tape.

2. The ultra-flexible fireproof cable according to claim 1, wherein the material of the outer protective layer is high flame retardant halogen-free low smoke polyolefin.

3. The super-flexible fire-resistant cable according to claim 1, wherein the fire-resistant layer is a synthetic mica tape, and the fire-resistant layer is wound on the outside of the conductor core.

4. An ultra-flexible fire protection cable according to claim 3, wherein the refractory layer has a lap rate of 20% to 25%.

5. The super-flexible fireproof cable according to claim 1, wherein the insulating layer is made of ceramic polyolefin.

6. The super-flexible fire protection cable according to any one of claims 1 to 5, further comprising a filler layer filled between the protection unit and the core unit.

7. The super flexible fire protection cable according to claim 6, wherein the filler layer is made of high flame retardant halogen-free low smoke polyolefin.

8. The super-flexible fire protection cable according to any one of claims 1 to 5, wherein four of the core units are arranged in a twisted manner.