CN211654390U

CN211654390U - Flame-retardant fireproof weak current cable

Info

Publication number: CN211654390U
Application number: CN201922389507.1U
Authority: CN
Inventors: 兰立新
Original assignee: Yangzhou Yineng Electronic Network Co ltd
Current assignee: Yangzhou Yineng Electronic Network Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-09
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a fire-retardant fire prevention type light current cable belongs to cable technical field. The cable comprises a conductor, the outside crowded package of conductor has the insulating layer, the insulating layer outside is equipped with the flame retardant coating, the flame retardant coating outside is equipped with at a distance from the oxygen layer, it has the inner sheath to separate the outside crowded package of oxygen layer, the inner sheath outside constitutes the armor around covering galvanized steel strip, the outside cladding of armor has the shielding layer, the shielding layer outside is equipped with the buffer layer, the inside hollow buffer tube that runs through of buffer layer is equipped with, the outside crowded package of buffer layer has the oversheath, the oversheath surface coating has the silicone oil reservoir. The utility model is provided with the fireproof layer and the oxygen isolation layer, thereby effectively increasing the fire resistance of the cable and having high safety performance; the outer surface of the outer sheath is coated with a silicon oil layer, so that the protective effect is achieved, and the ageing resistance of the cable is improved.

Description

Flame-retardant fireproof weak current cable

Technical Field

The utility model relates to a cable technical field, specifically speaking especially relates to a fire-retardant fire prevention type light current cable.

Background

The weak current cable is used for security communication, electrical equipment and related weak current transmission, and along with the progress of science and technology, the weak current cable is also widely applied to electrical connection between mobile electric equipment in severe environments such as power generation, metallurgy, chemical engineering, harbors and the like, and under the severe environments, if the weak current cable cannot prevent fire and resist flame, the danger coefficient of use is increased.

Disclosure of Invention

In order to solve the problem, the utility model discloses a fire-retardant fire prevention type light current cable.

The utility model discloses a realize through following technical scheme:

the utility model provides a fire-retardant fire prevention type light current cable, includes the conductor, the outside crowded package of conductor has the insulating layer, the insulating layer outside is equipped with the flame retardant coating, the flame retardant coating outside is equipped with at a distance from the oxygen layer, it has the inner sheath to separate the outside crowded package of oxygen layer, the inner sheath outside constitutes the armor around covering galvanized steel strip, the outside cladding of armor has the shielding layer, the shielding layer outside is equipped with the buffer layer, the inside hollow buffer tube that runs through of buffer layer, the outside crowded package of buffer layer has the oversheath, the oversheath surface coating has the silicone oil layer.

The insulating layer is made of ceramic silicon rubber.

The fireproof layer is formed by wrapping a fireproof mica tape.

The oxygen-isolating layer is a magnesium oxide oxygen-isolating layer.

The inner sheath and the outer sheath are made of thermoplastic halogen-free low-smoke flame-retardant polyolefin sheath materials.

The shielding layer adopts an aluminum alloy woven mesh structure.

The buffer layer is made of thermoplastic elastomer materials.

The hollow buffer tube is a carbon corrugated tube.

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

the utility model is provided with the fireproof layer and the oxygen isolation layer, thereby effectively increasing the fire resistance of the cable and having high safety performance; the outer surface of the outer sheath is coated with a silicon oil layer, so that the protective effect is achieved, and the ageing resistance of the cable is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a conductor; 2. an insulating layer; 3. a fire barrier layer; 4. an oxygen barrier layer; 5. an inner sheath; 6. an armor layer; 7. a shielding layer; 8. a buffer layer; 9. a hollow buffer tube; 10. an outer sheath; 11. and (4) a silicon oil layer.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

the utility model provides a fire-retardant fire prevention type light current cable, includes

conductor

1, 1 outside crowded package of conductor has insulating layer 2, 2 outside in insulating layer are equipped with flame retardant coating 3, 3 outsides in flame retardant coating are equipped with at a distance from oxygen layer 4, it has inner sheath 5 to separate 4 outside crowded packages in oxygen layer, 5 outsides in inner sheath are around covering galvanized steel strip and constitute armor 6, the outside cladding of armor 6 has

shielding layer

7, 7 outsides in shielding layer are equipped with

buffer layer

8, 8 inside run through of buffer layer are equipped with a plurality of

hollow buffer tubes

9, 8 outside crowded packages in buffer layer have oversheath 10, the coating of oversheath 10 surface has silicon oil reservoir 11.

The insulating layer 2 is made of ceramic silicon rubber.

The fireproof layer 3 is formed by wrapping fireproof mica tapes.

The oxygen-isolating layer 4 is a magnesium oxide oxygen-isolating layer.

The inner sheath 5 and the outer sheath 10 are made of thermoplastic halogen-free low-smoke flame-retardant polyolefin sheath materials.

The shielding layer 7 is of an aluminum alloy woven mesh structure.

The cushioning layer 8 is made of thermoplastic elastomer material.

As shown in figure 1 of the attached drawings of the specification, the flame-retardant fireproof type weak current cable comprises a conductor 1, an insulating layer 2 is wrapped outside the conductor 1 in an extruding mode, a fireproof layer 3 is arranged outside the insulating layer 2, an oxygen separation layer 4 is arranged outside the fireproof layer 3, an inner sheath 5 is wrapped outside the oxygen separation layer 4 in an extruding mode, an armor layer 6 is formed outside the inner sheath 5 in a wrapping mode through a galvanized steel strip, a shielding layer 7 is wrapped outside the armor layer 6, a buffer layer 8 is arranged outside the shielding layer 7, a plurality of hollow buffer tubes 9 are arranged inside the buffer layer 8 in a penetrating mode, an outer sheath 10 is wrapped outside the buffer layer 8 in an extruding mode, and a silicon oil layer. Insulating layer 2 adopts ceramic silicon rubber to make, and flame retardant coating 3 is formed around the package by fire resistant mica tape, separates oxygen layer 4 for the magnesium oxide separates the oxygen layer, and inner sheath 5 and oversheath 10 adopt the halogen-free low cigarette fire-retardant polyolefin sheath material of thermoplasticity to make, and shielding layer 7 adopts the aluminum alloy to weave the net structure, and buffer layer 8 adopts the thermoplastic elastomer material to make.

The utility model discloses set up the flame retardant coating in the structure and separate the oxygen layer, when cable service environment conflagration breaing out, magnesium oxide separates the oxygen layer and is heated and form the crust that does not melt incombustible, plays the effect of cooling and isolation, avoids the intensity of a fire to stretch and causes bigger economic loss, and flame retardant efficiency is good, safe in utilization.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications in the shape, structure, characteristics and spirit of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a fire-retardant fire prevention type light current cable which characterized in that: including conductor (1), conductor (1) outside crowded package has insulating layer (2), insulating layer (2) outside is equipped with flame retardant coating (3), flame retardant coating (3) outside is equipped with at a distance from oxygen layer (4), it has inner sheath (5) to separate oxygen layer (4) outside crowded package, inner sheath (5) outside is around covering galvanized steel strip constitution armor (6), armor (6) outside cladding has shielding layer (7), shielding layer (7) outside is equipped with buffer layer (8), buffer layer (8) inside runs through and is equipped with a plurality of hollow buffer tubes (9), buffer layer (8) outside crowded package has oversheath (10), oversheath (10) surface coating has silicon oil layer (11).

2. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the insulating layer (2) is made of ceramic silicon rubber.

3. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the fireproof layer (3) is formed by wrapping a fireproof mica tape.

4. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the oxygen-isolating layer (4) is a magnesium oxide oxygen-isolating layer.

5. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the inner sheath (5) and the outer sheath (10) are made of thermoplastic halogen-free low-smoke flame-retardant polyolefin sheath materials.

6. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the shielding layer (7) adopts an aluminum alloy woven mesh structure.

7. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the buffer layer (8) is made of thermoplastic elastomer materials.

8. The flame-retardant and fire-retardant type weak electric cable according to claim 1, wherein: the hollow buffer tube (9) is a carbon corrugated tube.