CN209843307U

CN209843307U - Low-smoke halogen-free flame-retardant fire-resistant cable

Info

Publication number: CN209843307U
Application number: CN201920594574.4U
Authority: CN
Inventors: 毛科达
Original assignee: Wuxi Shenguang Cable Co Ltd
Current assignee: Wuxi Shenguang Cable Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2019-12-24
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a fire-retardant fire resisting cable of low smoke and zero halogen, including oversheath layer, insulating layer, first insulation layer, armor, second insulating layer, cable main part and filling layer, the inside wall of oversheath layer is fixed with the insulating layer. The utility model discloses a set up the insulating layer, and the insulating layer is formed by the asbestos preparation, this kind of material of asbestos has better insulating properties, fire behavior and thermal-insulated heat retaining effect, so can play better thermal-insulated heat preservation effect, thereby can better adaptation external climate's change, through setting up the filling layer, and the filling layer is formed by the factice preparation, the factice material has better waterproof and insulating properties like this, and better elasticity has, so when the cable meets the impact of external force, can play better cushioning effect, and the oversheath layer, the first insulation layer, the second insulating layer, inner sheath layer and third insulating layer all adopt low smoke and zero halogen flame retardant polyolefin material to make, so better flame retardant efficiency has.

Description

Low-smoke halogen-free flame-retardant fire-resistant cable

Technical Field

The utility model relates to the technical field of cables, specifically a fire-retardant fire resisting cable of low smoke and zero halogen.

Background

A cable is generally a rope-like cable made up of several or groups of at least two twisted conductors, each group of conductors being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating, and the cable can be classified into a power cable, a communication cable, a control cable, etc. according to its purpose.

However, the flame retardant property, the weather resistance and the impact resistance of the existing cable are poor, so a low-smoke halogen-free flame-retardant fire-resistant cable is proposed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a fire-retardant fire resisting cable of low smoke and zero halogen has solved the flame retardant efficiency, the weather resistance and the shock resistance all relatively poor problem of current cable.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a low-smoke halogen-free flame-retardant fire-resistant cable comprises an outer sheath layer, a heat insulation layer, a first insulation layer, an armor layer, a second insulation layer, a cable main body and a filling layer, the inner side wall of the outer sheath layer is fixed with a heat insulation layer, the inner side wall of the heat insulation layer is fixed with a first insulation layer, an armor layer is fixed on the inner side wall of the first insulating layer, a second insulating layer is fixed on the inner side wall of the armor layer, the interior of the second insulating layer is provided with three cable main bodies, each cable main body consists of a conductor, an inner sheath layer, a shielding layer, a third insulating layer and a color ribbon, an inner sheath layer is fixed on the outer side wall of the conductor, a shielding layer is fixed on the outer side wall of the inner sheath layer, a third insulating layer is fixed on the outer side wall of the shielding layer, a color band is fixed on the outer side wall of the third insulating layer, and a filling layer is arranged between the cable main body and the second insulating layer.

Further optimizing the technical scheme, the outer sheath layer, the first insulating layer, the second insulating layer, the inner sheath layer and the third insulating layer are all made of low-smoke halogen-free flame-retardant polyolefin materials.

Further optimizing the technical scheme, the heat insulation layer is made of asbestos.

Further optimizing the technical scheme, the armor layer is a braided steel wire.

Further optimizing the technical scheme, the conductor is made of copper.

Further optimize this technical scheme, the shielding layer is for weaving form magnalium.

Further optimizing the technical scheme, the filling layer is made of ointment.

(III) advantageous effects

Compared with the prior art, the utility model provides a fire-retardant fire resisting cable of low smoke and zero halogen possesses following beneficial effect:

this fire-retardant fire resisting cable of low smoke and zero halogen, through setting up the insulating layer, and the insulating layer is formed by the asbestos preparation, this kind of material of asbestos has better insulating properties, fire behavior and thermal-insulated heat retaining effect, so can play better thermal-insulated heat preservation effect, thereby can better adaptation external climate's change, through setting up the filling layer, and the filling layer is formed by the factice preparation, the material has better waterproof and insulating properties like this of factice, and better elasticity has, so when the cable meets the impact of external force, can play better cushioning effect, and the oversheath layer, the first insulation layer, the second insulating layer, inner sheath layer and third insulating layer all adopt low smoke and zero halogen fire-retardant polyolefin material to make, so better flame retardant efficiency has.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the schematic diagram of the cable main structure of the present invention.

In the figure: 1. an outer jacket layer; 2. a thermal insulation layer; 3. a first insulating layer; 4. an armor layer; 5. a second insulating layer; 6. a cable body; 7. a conductor; 8. an inner jacket layer; 9. a shielding layer; 10. a third insulating layer; 11. a color band; 12. and (5) filling the layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a low-smoke halogen-free flame-retardant fire-resistant cable comprises an outer sheath layer 1, a heat insulation layer 2, a first insulation layer 3, an armor layer 4, a second insulation layer 5, a cable body 6 and a filling layer 12, wherein the inner side wall of the outer sheath layer 1 is fixed with the heat insulation layer 2, the inner side wall of the heat insulation layer 2 is fixed with the first insulation layer 3, the inner side wall of the first insulation layer 3 is fixed with the armor layer 4, the inner side wall of the armor layer 4 is fixed with the second insulation layer 5, three cable bodies 6 are arranged inside the second insulation layer 5, the cable body 6 consists of a conductor 7, an inner sheath layer 8, a shielding layer 9, a third insulation layer 10 and a color band 11, the outer side wall of the conductor 7 is fixed with the inner sheath layer 8, the outer side wall of the inner sheath layer 8 is fixed with the shielding layer 9, the outer side wall of the shielding layer 9 is fixed with the third insulation layer 10, the outer side wall of the third, through setting up insulating layer 2, and insulating layer 2 is formed by the asbestos preparation, this kind of material of asbestos has better insulating properties, fire behavior and thermal-insulated heat retaining effect, so can play better thermal-insulated heat retaining effect, thereby can be better adaptation climatic change, through setting up filling layer 12, and filling layer 12 is formed by the oleamen preparation, the oleamen like this material has better waterproof and insulating properties, and better elasticity has, so when the cable meets the impact of external force, can play better cushioning effect, and oversheath layer 1, first insulation layer 3, second insulation layer 5, inner sheath layer 8 and third insulation layer 10 all adopt low smoke and zero halogen flame retardant polyolefin material to make, so better flame retardant efficiency has.

Specifically, the outer sheath layer 1, the first insulating layer 3, the second insulating layer 5, the inner sheath layer 8 and the third insulating layer 10 are all made of low-smoke halogen-free flame-retardant polyolefin materials, and the materials have good flame retardance, insulativity and ageing resistance.

Specifically, the heat insulation layer 2 is made of asbestos, and the asbestos material has good insulation, fire prevention, heat insulation and heat preservation effects.

Specifically, the armor layer 4 is a braided steel wire, which is beneficial to improving the structural strength of the cable.

Specifically, the conductor 7 is made of copper, which is excellent in electrical conductivity.

Specifically, the shielding layer 9 is made of woven magnesium aluminum alloy, and can play a good shielding role.

Specifically, the filling layer 12 is made of ointment, and the ointment is a material having good waterproof performance, good insulating performance and good elasticity, and can play a good role in buffering when the cable encounters impact force.

When using, oversheath layer 1, first insulating layer 3, second insulating layer 5, inner sheath layer 8 and third insulating layer 10 all adopt low smoke and zero halogen flame retardant polyolefin material to make, so have better flame retardant efficiency, and through setting up insulating layer 2, can play better thermal-insulated heat preservation effect to the change of adaptation external climate that can be better, through setting up filling layer 12, when the cable meets the impact of external force, can play better buffering guard action.

In conclusion, this fire-retardant fire resisting cable of low smoke and zero halogen, through setting up insulating layer 2, and insulating layer 2 is formed by the asbestos preparation, this kind of material of asbestos has better insulating properties, fire behavior and thermal-insulated heat retaining effect, so can play better thermal-insulated heat retaining effect, thereby can better adaptation outside climate's change, through setting up filling layer 12, and filling layer 12 is formed by the oleamen, the material has better waterproof and insulating properties like the oleamen, and has better elasticity, so when the cable meets the impact of external force, can play better cushioning effect, and oversheath layer 1, first insulating layer 3, second insulating layer 5, inner sheath layer 8 and third insulating layer 10 all adopt fire-retardant polyolefin material of low smoke and zero halogen to make, so better fire-retardant effect has.

It is noted that, herein, relational terms such as first and second, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant fire resisting cable of low smoke and zero halogen, includes oversheath layer (1), insulating layer (2), first insulating layer (3), armor (4), second insulating layer (5), cable main part (6) and filling layer (12), its characterized in that: the cable is characterized in that a heat insulation layer (2) is fixed on the inner side wall of the outer sheath layer (1), a first insulation layer (3) is fixed on the inner side wall of the heat insulation layer (2), an armor layer (4) is fixed on the inner side wall of the first insulation layer (3), a second insulation layer (5) is fixed on the inner side wall of the armor layer (4), three cable bodies (6) are arranged inside the second insulation layer (5), each cable body (6) is composed of a conductor (7), an inner sheath layer (8), a shielding layer (9), a third insulation layer (10) and a color tape (11), the inner sheath layer (8) is fixed on the outer side wall of the conductor (7), the shielding layer (9) is fixed on the outer side wall of the shielding layer (9), the third insulation layer (10) is fixed on the outer side wall of the third insulation layer (10), the color tape (11) is fixed on the outer side wall of the third, and a filling layer (12) is arranged between the cable main body (6) and the second insulating layer (5).

2. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the outer sheath layer (1), the first insulating layer (3), the second insulating layer (5), the inner sheath layer (8) and the third insulating layer (10) are all made of low-smoke halogen-free flame-retardant polyolefin materials.

3. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the heat insulation layer (2) is made of asbestos.

4. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the armor layer (4) is a braided steel wire.

5. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the conductor (7) is made of copper.

6. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the shielding layer (9) is made of woven magnesium-aluminum alloy.

7. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the filling layer (12) is made of ointment.