CN212113271U

CN212113271U - Flexible mineral substance insulation fireproof cable

Info

Publication number: CN212113271U
Application number: CN202021116174.1U
Authority: CN
Inventors: 娄震; 娄斐; 娄忠金; 李敏; 娄永树; 韩佳
Original assignee: Jiangxi Santa Cable Technology Co ltd
Current assignee: Jiangxi Santa Cable Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-12-08
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses an insulating fireproof cable of flexible mineral substance, including the cable conductor, the insulating layer has been cup jointed to the outside of cable conductor, the insulating layer has cup jointed the isolation layer outward, be equipped with the mineral substance filling layer outside the isolation layer, be equipped with the oversheath outside the mineral substance filling layer. The fireproof cable has the characteristics of high flame retardance, good fireproof performance, good flexibility, easiness in installation, cleanness, environmental protection, temperature resistance, corrosion resistance, large current-carrying capacity, strong practicability and the like.

Description

Flexible mineral substance insulation fireproof cable

Technical Field

The utility model relates to the technical field of cables, specifically be an insulating fireproof cable of flexible mineral substance.

Background

The cable is made of one or more mutually insulated conductors and an outer insulation protective layer, a wire for transmitting electric power or information from one place to another place has the characteristics of internal electrification and external insulation, the conductors of a common electric wire and cable adopt core rod type solid copper, so that the cable is very hard and inconvenient to install, and the insulating material adopts organic high polymer materials, so that the cable is very easy to carbonize under the condition of flame and loses the insulation effect, the safety performance is poor, and the fireproof cable which is easy to install and can normally play a power transmission function even under the condition of flame needs to be designed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a flexible insulation fireproof cable can effectively solve the problem in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a flexible mineral substance insulation fireproof cable, includes the cable conductor, the insulating layer has been cup jointed to the outside of cable conductor, the insulating layer has cup jointed the isolation layer outward, be equipped with the mineral substance filling layer outside the isolation layer, be equipped with the oversheath outside the mineral substance filling layer.

Furthermore, five cable conductors are arranged in the fireproof cable, the maximum section of each cable conductor is 500 square millimeters, and the current-carrying capacity of the cable is improved, so that the cable bears large overload current.

Furthermore, the cable conductor is formed by stranding a plurality of strands of copper wires, so that the cable is softer and is convenient to install and lay.

Furthermore, the insulating layer is made of an inorganic mineral insulating material and is wound by multiple layers.

Furthermore, the inorganic mineral insulating material is an alkali-free glass fiber tape, and can resist temperature of more than 1000 ℃.

Furthermore, the isolation layer is made of polyethylene isolation materials.

Furthermore, the mineral substance filling layer is made of inorganic mineral substance materials, and the inorganic mineral substance materials are ceramic silica gel mud, so that the fireproof and fireproof inorganic mineral substance filling layer has the advantages of fire resistance, high temperature resistance, heat insulation and the like.

Furthermore, the outer sheath is made of a low-smoke non-toxic plastic material, and the plastic material is a flame-retardant polyolefin material and has good corrosion resistance.

(III) advantageous effects

Compared with the prior art, the utility model provides a flexible insulation fireproof cable possesses following beneficial effect:

1. the cable has the characteristics of fire prevention, high flame retardance, temperature resistance, corrosion resistance and high safety performance, the non-flame retardance of the cable is determined due to the fact that the cable is made of mineral compounds, power can be normally supplied when a fire disaster happens, a fire extinguishing device is started, loss caused by the fire disaster is reduced, the cable can bear 950 ℃ for 3 hours of combustion under the electrified condition, normal operation of a circuit is guaranteed, safety and reliability are achieved for personal protection, and meanwhile the cable also has radiation-resistant and explosion-proof performance;

2. the flexible mineral insulated fireproof cable is good in flexibility and easy to install, adopts mature stranded wire and cabling technology, adopts a non-metal material as an outer sheath, is more flexible, light and easy to bend, does not need a special terminal joint, and is more convenient to install and lay;

3. the cable is energy-saving and environment-friendly, and the insulating layer and the outer sheath of the cable are made of inorganic compound materials, so that the cable is halogen-free and non-toxic, and has no acid gas emission even under the fire condition, thereby being safer and more environment-friendly.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

Fig. 2 is a schematic sectional view of the utility model.

Fig. 3 is a schematic view of a cable conductor according to the present invention.

In the figure: 1. the cable comprises a cable conductor, 2 insulating layers, 3 isolating layers, 4 mineral substance filling layers and 5 outer sheaths.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a flexible mineral insulation fireproof cable comprises a cable conductor 1, an insulation layer 2 is sleeved outside the cable conductor 1, an insulation layer 3 is sleeved outside the insulation layer 2, a mineral filling layer 4 is arranged outside the insulation layer 3, and an outer sheath 5 is arranged outside the mineral filling layer 4.

In the utility model, five cable conductors 1 are arranged in the fireproof cable, the maximum section of the wire core is 500 square millimeters, and the current-carrying capacity of the cable is improved, so that the cable bears larger overload current; the cable conductor 1 is formed by twisting a plurality of strands of copper wires, so that the cable is more flexible and is convenient to install and lay; the insulating layer 2 is made of an inorganic mineral insulating material and wound in multiple layers, and the inorganic mineral insulating material is an alkali-free glass fiber tape and can resist temperature of more than 1000 ℃; the isolation layer 3 is made of polyethylene isolation materials; the mineral filling layer 4 is made of inorganic mineral materials developed by advanced nano technology at home and abroad, such as ceramic silica gel mud, and has the advantages of fire resistance, high temperature resistance, thermal insulation, heat insulation and the like; the outer sheath 5 is made of low-smoke nontoxic plastic materials and has good corrosion resistance.

It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flexible mineral substance insulation fireproof cable, characterized by: the cable comprises a cable conductor (1), an insulating layer (2) is sleeved outside the cable conductor (1), an insulating layer (3) is sleeved outside the insulating layer (2), a mineral filling layer (4) is arranged outside the insulating layer (3), and an outer sheath (5) is arranged outside the mineral filling layer (4).

2. The flexible mineral insulated fireproof cable of claim 1, wherein: five cable conductors (1) are arranged in the fireproof cable, and the maximum section of each cable conductor (1) is 500 square millimeters.

3. The flexible mineral insulated fireproof cable of claim 1, wherein: the cable conductor (1) is formed by stranding a plurality of strands of copper wires.

4. The flexible mineral insulated fireproof cable of claim 1, wherein: the insulating layer (2) is made of an inorganic mineral insulating material.

5. The flexible mineral insulated fireproof cable of claim 4, wherein: the inorganic mineral insulating material is an alkali-free glass fiber tape.

6. The flexible mineral insulated fireproof cable of claim 1, wherein: the isolation layer (3) is made of polyethylene isolation materials.

7. The flexible mineral insulated fireproof cable of claim 1, wherein: the mineral substance filling layer (4) is ceramic silica gel mud.

8. The flexible mineral insulated fireproof cable of claim 1, wherein: oversheath (5) adopt low-smoke nontoxic plastic material, the plastic material is fire-retardant polyolefin material.