CN210667854U

CN210667854U - Fire-resistant shielded cable

Info

Publication number: CN210667854U
Application number: CN201921961138.2U
Authority: CN
Inventors: 林洁斌; 侯洁浩
Original assignee: Guangdong Guangshen Cable Co Ltd
Current assignee: Guangdong Guangshen Cable Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-02
Anticipated expiration: 2029-11-13

Abstract

The utility model provides a fire-resistant shielded cable, a serial communication port, including sinle silk, insulating layer, shielding layer, separate oxygen layer, elastic component and sheath, the parcel has the insulating layer on the sinle silk, and the parcel has the shielding layer on the insulating layer, separates all sinle silks of oxygen layer parcel, and the clearance packing that separates between oxygen layer and the sinle silk has thermal insulation material, and the sheath parcel has and separates the oxygen layer, and the elastic component sets up in the sheath and separates between the oxygen layer to along the circumference evenly distributed who separates the oxygen layer. The utility model discloses separate all sinle silks of oxygen layer parcel, and it has thermal insulation material to fill in separating the clearance between oxygen layer and the sinle silk, also can reduce the sinle silk and be destroyed, reduces and leads to the condition of a fire aggravation because the sinle silk burning to threaten people's personal and property safety. Be provided with the elastic component between oxygen layer and the sheath at a distance from, when the cable received the extrusion, the elastic component can form the buffering to the extrusion, avoids separating structures such as oxygen layer and sinle silk and is destroyed because the extrusion force is too big.

Description

Fire-resistant shielded cable

Technical Field

The utility model relates to a cable especially relates to a fire-resistant shielded cable.

Background

The cable is used for transmitting and distributing electric energy, at present, in the developed present of electric power, communication industry, the cable is used in many different environments, when the cable is used in the building (especially the building in public place), to the fire-retardant requirement of cable higher and higher, if the fire behavior of cable is poor, when the conflagration takes place, the cable can possibly burn and the short circuit phenomenon appears, can aggravate the degree of combustion of conflagration more, make the conflagration can't obtain effectual control, not only seriously harm property safety, even people's personal safety can't be ensured even.

Moreover, current cable is when receiving the extrusion to when the extruded power surpassed its pressure that can bear, probably lead to the inner structure to be destroyed, because the cable once received the extrusion and lead to inside some structures that can prevent fires to suffer destruction, when the conflagration takes place, the unable structure fire prevention through preventing fires of passing through of cable, thereby leads to the cable burning. When fire accidents happen in dense places, the fire safety monitoring system can cause great economic loss and also bring great threat to the personal safety of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-resistant shielded cable, fire behavior is good and withstand voltage, can effectively prevent the intensity of a fire to stretch to reduce because cable fault causes the fire incident, reduce the harm to the personal property.

In order to realize the above-mentioned purpose, the utility model provides a fire-resistant shielded cable, include sinle silk, insulating layer, shielding layer, separate oxygen layer, elastic component and sheath, the parcel has on the sinle silk the insulating layer, the parcel has on the insulating layer the shielding layer, separate oxygen layer parcel all the sinle silk, separate the oxygen layer with clearance packing between the sinle silk has thermal insulation material, the sheath parcel has separate the oxygen layer, the elastic component set up in the sheath with separate between the oxygen layer, and follow separate the circumference evenly distributed on oxygen layer, the sheath is the half cylinder structure, the both sides of sheath are provided with the installation position equidistantly.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a separate all sinle silks of oxygen layer parcel, when the conflagration takes place, can effectively isolated air gets into and makes the intensity of a fire increase to destroy the sinle silk, and it has thermal insulation material to fill in the clearance that separates between oxygen layer and the sinle silk, also can reduce the sinle silk and be destroyed, reduces because the sinle silk burns and leads to the condition of a fire aggravation, thereby threatens people's personal and property safety. Be provided with the elastic component between oxygen layer and the sheath at a distance from, when the cable received the extrusion, the elastic component can form the buffering to the extrusion, avoids separating structures such as oxygen layer and sinle silk and destroyed because the extrusion force is too big, through set up the compressive property of elastic component in order to improve the cable in fire-resistant shielded cable.

Preferably, the heat insulating material is heat insulating foam.

Preferably, the elastic member is a spring.

Preferably, the sheath is a crosslinked polyethylene sheath.

Preferably, the utility model discloses a fire-resistant shielded cable still includes the tensile steel wire, the tensile steel wire set up in the oxygen barrier. This scheme still is provided with the tensile steel wire in the oxygen barrier, can effectively improve fire-resistant shielded cable's tensile.

Preferably, the diameter of the wire core is 1-15 mm.

Drawings

Fig. 1 is a schematic structural view of the fire-resistant shielded cable of the present invention.

Detailed Description

In order to clearly understand the technical features, objects and effects of the present invention, the detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Referring to fig. 1, the present invention provides a fire-resistant shielding cable 100, including three cores 101, an insulating layer 102, a shielding layer 103, an oxygen-blocking layer 104, an elastic member 105 and a sheath 106, where the insulating layer 102 wraps the cores 101, the shielding layer 103 includes the insulating layer 102, the oxygen-blocking layer 104 wraps all the cores 101, a gap between the oxygen-blocking layer 104 and the cores 101 is filled with a heat-insulating material, the sheath 106 wraps the oxygen-blocking layer 104, and the elastic member 105 is disposed between the oxygen-blocking layer 104 and the sheath 106, the elastic member 105 is uniformly arranged along the circumferential direction of the oxygen-blocking layer 104, and in this embodiment, the elastic member 105 is a spring.

Wherein, still be provided with tensile steel wire 107 in oxygen barrier 104, the quantity of tensile steel wire 107 is four, and the position that the specific distribution is shown in figure 1, and the quantity and the setting position of tensile steel wire 107 can be adjusted according to different needs.

In the present embodiment, the number of the cores 101 is 3, and the number of the cores 101 may be set to 2 or 4 according to a specific use environment, an electrical requirement, and the like, and the number of the cores 101 is not limited thereto.

Specifically, the diameter range of the wire core 101 is 1-15mm, and the diameter meeting the use requirement can be selected within the diameter range of the wire core 101 according to different use requirements. In this embodiment, the diameter of the wire core 101 is 5 mm.

Further, the jacket 106 is a cross-linked polyethylene jacket. And the sheath 106 can also be made of low-smoke halogen-free materials or some high-temperature-resistant fireproof materials so as to achieve the purpose of fire prevention and flame retardance.

Referring to fig. 1, in the present embodiment, the thermal insulation material is thermal insulation foam, which can effectively insulate heat, is light and durable, has good impact resistance, and can enhance the tensile resistance of the entire fire-resistant shielding cable 100. Of course, the heat insulating material may be any of the conventional heat insulating materials such as a pearl wool heat insulating material, a rock wool heat insulating material, and a rock wool heat insulating material.

The insulating layer 102 is a mica tape insulating layer, and the thickness of the insulating layer 102 ranges from 2 mm to 6mm, in this embodiment, the thickness of the insulating layer 102 is 3 mm. Certainly, the thickness of the insulating layer 102 can be selected within the thickness range of the insulating layer 102 according to the process requirements, the actual use environment and other factors, and the insulating layer 102 can also be selected from low-smoke halogen-free materials, such as cross-linked polyethylene materials, so as to achieve the purpose of fire prevention and flame retardance.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto. Within the scope of the concept of the present invention, corresponding changes can be made reasonably. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. The utility model provides a fire-resistant shielded cable, its characterized in that includes sinle silk, insulating layer, shielding layer, separates oxygen layer, elastic component and sheath, the parcel has on the sinle silk the insulating layer, the parcel has on the insulating layer the shielding layer, separate oxygen layer parcel all the sinle silk, separate the oxygen layer with clearance packing between the sinle silk has thermal insulation material, the sheath parcel has separate the oxygen layer, the elastic component set up in the sheath with separate between the oxygen layer, and follow separate the circumference evenly distributed on oxygen layer.

2. The fire resistant shielded electrical cable of claim 1 wherein the insulating material is a thermally insulating foam.

3. The fire resistant shielded electrical cable of claim 1 wherein the resilient member is a spring.

4. The fire resistant shielded electrical cable of claim 1 wherein the jacket is a cross-linked polyethylene jacket.

5. The fire resistant shielded electrical cable of claim 1 further comprising tensile steel wires disposed within the oxygen barrier.

6. The fire resistant shielded electrical cable of claim 1 wherein the core has a diameter of 1 to 15 mm.