CN218181924U

CN218181924U - Halogen-free low-smoke fire-resistant power cable

Info

Publication number: CN218181924U
Application number: CN202220902145.0U
Authority: CN
Inventors: 董继福
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-12-30
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to the technical field of cables, and a there is not steamed low fire-resistant power cable of cigarette is disclosed, the cable core comprises a cable core, fixedly connected with flame retardant coating on the outer wall of one side of cable core, fixedly connected with shielding layer on the outer wall of one side that the cable core was kept away from to the flame retardant coating, fixedly connected with insulating layer on the outer wall of one side that the flame retardant coating was kept away from to the shielding layer, the insulating layer is kept away from the first protective layer of fixedly connected with on the outer wall of one side of shielding layer, fixedly connected with second protective layer on the outer wall of one side that the insulating layer was kept away from to first protective layer. Through setting up first protective layer, there is not steamed polyolefin to have low toxicity characteristic and safe clean characteristic, and the toxic gas that produces during the burning accords with industry standard, and through setting up the second protective layer, there is not steamed low fire-retardant polyolefin fire-resistant sheath of cigarette that smokes can be further play low fire-retardant effect.

Description

Halogen-free low-smoke fire-resistant power cable

Technical Field

The utility model relates to the technical field of cables, specifically a there is not steamed low fire-resistant power cable of cigarette.

Background

At present, with the rapid development of national economy, cables are widely applied to various power stations, such as nuclear power stations, thermal power stations and the like, and various fields such as subway stations, power plants, high-rise buildings, military facilities, oil platforms and the like, so that the requirements of people on the quality and functions of the cables are higher and higher; the common cable usually adopts a halogen-containing material such as a PVC insulating layer as a sheath layer, the structure is not compact, most importantly, a great amount of dense smoke is generated once the polyvinyl chloride insulated wire and cable are burnt in case of fire, so that rescue workers and people in disaster are often trapped by smoke and even die by suffocation, rescue work is difficult to carry out, rescue efficiency is low, and meanwhile, the burning of the halogen-containing material can generate a great amount of toxic gas to pollute the atmosphere; in addition, the function of the cable needs to be changed, so that it is urgent to produce a cable with reasonable structure and capable of overcoming the above disadvantages.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a there is not steamed low fire-resistant power cable of cigarette, reach the purpose of solving above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a there is not steamed low fire-resistant power cable of cigarette, includes the cable core, fixedly connected with flame retardant coating on the outer wall of one side of cable core, fixedly connected with shielding layer on the outer wall of one side that the cable core was kept away from to the flame retardant coating, fixedly connected with insulating layer on the outer wall of one side that the flame retardant coating was kept away from to the shielding layer, the first protective layer of fixedly connected with on the outer wall of one side that the shielding layer was kept away from to the insulating layer, fixedly connected with second protective layer on the outer wall of one side that the insulating layer was kept away from to first protective layer.

Preferably, the fireproof layer is basalt fiber, can bear high temperature of more than 950 ℃, and is a better insulating material, so that the fireproof layer has excellent insulating property and fire resistance, and the long-term working temperature is greatly increased.

Preferably, the shielding layer is made of an aluminum-plastic composite material, so that the anti-interference performance of the cable can be improved.

Preferably, the insulating layer is a silicon rubber insulating layer, and the material of the insulating layer can be selected from silicon rubber, XLPE or polyimide.

Preferably, the first protective layer is halogen-free polyolefin, which has low toxicity and safe and clean characteristics, and toxic gas generated during combustion meets the industrial standard.

Preferably, the second protective layer is a halogen-free low-smoke flame-retardant polyolefin fire-resistant sheath, and can further play a role in low-smoke flame retardance.

The utility model provides a there is not steamed low fire-resistant power cable of cigarette. The method has the following beneficial effects:

(1) The utility model discloses a set up first protective layer, there is not steamed polyolefin to have low toxicity characteristic and safe clean characteristic, and the toxic gas that produces during the burning accords with industry standard.

(2) The utility model discloses a set up the second protective layer, there is not steamed low fire-retardant polyolefin fire-resistant sheath of cigarette can further play low fire-retardant effect of cigarette.

Drawings

Fig. 1 is a layer diagram of the halogen-free low-smoke fire-resistant power cable of the present invention.

In the figure: 1. a cable core; 2. a fire barrier layer; 3. a shielding layer; 4. an insulating layer; 5. a first protective layer; 6. and a second protective 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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the utility model provides a technical scheme: the utility model provides a no halogen low smoke fire-resistant power cable, including cable core 1, fixedly connected with flame retardant coating 2 on one side outer wall of cable core 1, flame retardant coating 2 is the basalt fiber, it can not only bear the high temperature more than 950 ℃, but also better insulating material, therefore have superior insulating properties and fire resistance simultaneously, long-term service operating temperature has still been improved greatly, fixedly connected with shielding layer 3 on the one side outer wall that cable core 1 was kept away from to flame retardant coating 2, shielding layer 3 constitutes for aluminium-plastic composite, can improve the interference killing feature of cable, fixedly connected with insulating layer 4 on one side outer wall that shielding layer 2 was kept away from to shielding layer 3, insulating layer 4 is the silicon rubber insulating layer, the material of this insulating layer 4 then can select for silicon rubber, XLPE or polyimide, fixedly connected with first protective layer 5 on the one side outer wall that shielding layer 3 was kept away from to insulating layer 4, first protective layer 5 is halogen-free polyolefin, it has low toxicity characteristic and safe clean characteristic, the toxic gas that produces accords with the industry standard, first protective layer 5 is fixedly connected with second protective layer 6 on the one side outer wall that insulating layer 4 was kept away from, the halogen-free flame-retardant polyolefin protective layer, low smoke fire-resistant protective layer can further play the low smoke fire-resistant effect of fire-resistant effect.

When the cable is used, the cable core 1 is sequentially wrapped by the fireproof layer 2, the shielding layer 3, the insulating layer 4, the first protective layer 5 and the second protective layer 6, wherein the fireproof layer 2 is basalt fiber, and can bear high temperature of more than 950 ℃ and is a better insulating material, so that the cable has excellent insulating property and fire resistance, and the long-term working use temperature is greatly improved, the shielding layer 3 is made of an aluminum-plastic composite material and can improve the anti-interference performance of the cable, the insulating layer 4 is a silicon rubber insulating layer, the material of the insulating layer 4 can be selected from silicon rubber, XLPE or polyimide, the first protective layer 5 is halogen-free polyolefin and has low-toxicity characteristic and safe cleaning characteristic, toxic gas generated during combustion meets the industrial standard, and the second protective layer 6 is a halogen-free low-smoke flame-retardant polyolefin fire-resistant sheath and can further play a role in low smoke flame retardance.

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 a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a there is not steamed low fire-resistant power cable of cigarette, includes cable core (1), its characterized in that: fixedly connected with flame retardant coating (2) on the outer wall of one side of cable core (1), fixedly connected with shielding layer (3) on one side outer wall that cable core (1) was kept away from in flame retardant coating (2), fixedly connected with insulating layer (4) on one side outer wall that flame retardant coating (2) was kept away from in shielding layer (3), fixedly connected with first protective layer (5) on one side outer wall that shielding layer (3) was kept away from in insulating layer (4), fixedly connected with second protective layer (6) on one side outer wall that insulating layer (4) was kept away from in first protective layer (5).

2. A halogen-free low smoke fire resistant power cable as claimed in claim 1, characterized in that: the fireproof layer (2) is made of basalt fibers.

3. A halogen-free low smoke fire resistant power cable according to claim 2, characterized in that: the shielding layer (3) is made of an aluminum-plastic composite material.

4. A halogen-free low smoke fire resistant power cable according to claim 3, characterized in that: the insulating layer (4) is a silicon rubber insulating layer.

5. A halogen-free low-smoke fire-resistant power cable according to claim 4, characterized in that: the first protective layer (5) is halogen-free polyolefin.

6. A halogen-free low-smoke fire-resistant power cable according to claim 5, characterized in that: the second protective layer (6) is a halogen-free low-smoke flame-retardant polyolefin fire-resistant sheath.