Fireproof control cable

Abstract

The utility model discloses a fireproof control cable, and relates to the technical field of fireproof cables. The fireproof control cable comprises an outer sheath layer arranged on the outermost layer, a metal sheath layer is arranged in the outer sheath layer, a filling layer is arranged in the metal sheath layer, an insulation isolation layer is arranged in the filling layer, a mineral fireproof layer is arranged in the insulation isolation layer, a second insulation layer is arranged in the insulation isolation layer, and a fireproof layer is arranged in the second insulation layer. A conductor main body is arranged in the second insulating layer, and the second insulating layer and the conductor main body form a cable core. According to the fireproof control cable, heat release is reduced, the insulation performance of the cable core is effectively protected, the outer sheath layer is made of a high-temperature-resistant halogen-free low-smoke flame-retardant polyolefin material, and the polyolefin material is a halogen-free low-smoke flame-retardant non-toxic environment-friendly material, so that the flame-retardant fireproof performance of the cable can be effectively enhanced, the smoke toxicity generated in the combustion process is reduced, and the service life of the cable is prolonged. The fire-resistant and high-temperature-resistant performance of the cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof cable technical field, concretely is a fireproof control cable. BACKGROUND

[0002] With the rapid development of industry and the acceleration of urbanization, fire safety hazards are increasingly concerned, various large buildings are emerging, super high-rise buildings, large commercial complexes, data centers and so on, there are complex electrical systems in these places, fireproof control cable plays a key role in ensuring the normal operation of key equipment such as fire fighting system and fire alarm system when fire occurs.

[0003] The existing control cable mostly has the problem of fire resistance, if the cable is not resistant to high temperature and fire, the control line is easy to cause short circuit, leakage and other problems when fire occurs, thereby causing the spread of electrical fire or the normal operation of rescue equipment such as fire elevator, at present, in these special environments, the traditional flame-retardant fire-resistant cable cannot meet the needs of special working conditions due to the limitation of its insulation and sheath material, not only the service life and control precision are greatly reduced, but also a series of cost inputs such as product maintenance, repair, replacement and installation are increased. In view of the deficiency of prior art, the utility model provides a fireproof control cable to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a fireproof control cable, which solves the problem of cable not resistant to high temperature and fire.

[0005] In order to achieve the above purpose, the utility model realizes the following technical scheme: a fireproof control cable, comprising an outer sheath layer arranged at the outermost layer, a metal sheath layer arranged inside the outer sheath layer, a filling layer arranged inside the metal sheath layer, an insulating isolation layer arranged inside the filling layer, and a mineral fireproof layer arranged inside the insulating isolation layer.

[0006] The insulating isolation layer is provided with a second insulating layer, the second insulating layer is provided with a conductor main body, and the second insulating layer and the conductor main body form a cable core.

[0007] Preferably, the mineral fireproof layer comprises a first mica tape and a second mica tape, the first mica tape is arranged in the insulating isolation layer, the second mica tape is arranged in the first mica tape, the second mica tape is provided with a third mica tape inside, the third mica tape is provided with a first insulating layer inside, the conductor main body is made of oxygen-free copper, and the first mica tape, the second mica tape and the third mica tape are all made of phlogopite tape.

[0008] Preferably, the first insulation layer is wrapped with mineral insulation material, and the thickness of the first insulation layer is set to 0.5mm.

[0009] Preferably, the insulation isolation layer is made of cross-linked polyethylene material, and the thickness of the insulation isolation layer is set to 0.8-2.0mm.

[0010] Preferably, the filling layer is wrapped with ceramicized fiber filling rope and glass fiber tape material.

[0011] Preferably, the metal sheath layer is formed by longitudinally cladding, welding and embossing of soft copper tape.

[0012] Preferably, the outer sheath layer is made of polyolefin material.

[0013] The utility model discloses a kind of fireproof control cables, it has the beneficial effects as follows: the fireproof control cable, using mineral insulation material wrapping conductor fireproof layer;High-temperature-resistant flame-retardant environment-friendly material ceramicized fiber rope is filled layer, glass fiber tape is tightly wrapped and metal sheath layer, reduces heat release and effectively protects the insulation performance of cable core, outer sheath layer uses high-temperature-resistant halogen-free low-smoke flame-retardant polyolefin material, and polyolefin material is a kind of halogen-free low-smoke flame-retardant non-toxic environment-friendly material, can effectively enhance the flame-retardant fireproof performance of cable, reduce the toxicity of smoke generated in combustion process, using oxygen-free copper as the material of conductor main body, with stable excellent conductive performance, improve the performance of cable fire resistance and high temperature resistance. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] In the drawing: 1, outer sheath layer;2, metal sheath layer;3, filling layer;4, insulation isolation layer;5, mineral fireproof layer;51, first mica tape material;52, second mica tape material;53, third mica tape material;54, first insulation layer;6, second insulation layer;7, conductor main body. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] The utility model discloses a kind of fireproof control cables, solve the problem that cable is not resistant to high temperature fire, realize the performance of improving cable fire resistance and high temperature resistance

[0019] In order to better understand the above technical solutions, the above technical solutions will be described in detail in the following with reference to the drawings and specific embodiments of the specification.

[0020] The utility model discloses a kind of fireproof control cables, according to the attached Figure 1 As shown, including the outer sheath layer 1 of outermost layer, the inside of outer sheath layer 1 is equipped with metal sheath layer 2, the inside of metal sheath layer 2 is equipped with filling layer 3, the inside of filling layer 3 is equipped with insulating isolation layer 4, the inside of insulating isolation layer 4 is equipped with mineral fireproof layer 5;

[0021] The inside of insulating isolation layer 4 is equipped with second insulating layer 6, the inside of second insulating layer 6 is equipped with conductor main body 7, and second insulating layer 6 and conductor main body 7 form cable core.

[0022] Mineral fireproof layer 5 includes first mica tape 51 and second mica tape 52, first mica tape 51 is located in insulating isolation layer 4, second mica tape 52 is located in first mica tape 51, the inside of second mica tape 52 is equipped with third mica tape 53, the inside of third mica tape 53 is equipped with first insulating layer 54, conductor main body 7 uses oxygen-free copper as material, first mica tape 51, second mica tape 52, third mica tape 53 all use gold mica tape as material, gold mica tape is material from heat resistance, gold mica tape can resist higher temperature. In high temperature environment, it will not easily melt or lose original performance.

[0023] First insulating layer 54 is wrapped with mineral insulating material, and the mineral insulating material has excellent fireproof performance. This material itself is not flammable, and can prevent flame spread in high-temperature fire environment, effectively ensuring that the cable can maintain operation for a period of time in a fire, providing continuous power supply for important equipment such as fire fighting systems and emergency lighting. The thickness of the first insulating layer 54 is set to 0.5 mm.

[0024] The insulating isolation layer 4 is made of cross-linked polyethylene material, and the thickness of the insulating isolation layer 4 is set to be 0.8-2.0 mm. The cross-linked polyethylene material has high heat resistance, can work normally under certain high temperature environment, has high heat distortion temperature, can adapt to the heat generated during the working of the cable, and has low thermal expansion coefficient, stable size, and will not be greatly deformed due to temperature change to affect the performance of the cable, can improve the insulation, moisture resistance, flame resistance, high temperature resistance and fireproof performance of the cable core, and can protect the line safety, reduce the adverse effects on the environment, etc.

[0025] The filling layer 3 is wrapped by ceramic fiber filling rope and glass fiber belt material. The filling layer 3 is wrapped by the ceramic fiber filling rope and the glass fiber belt outside the cable core, which ensures the tight roundness of the cable core. The main features are to enhance the cable to effectively protect the cable from burning, reduce the thermal conductivity, resist high temperature, corrosion, oxidation and thermal stability, and improve the heat insulation and flame resistance.

[0026] The metal sheath layer 2 is made of soft copper belt which is longitudinally coated, welded and textured, which can effectively prevent the fireproof performance of the cable core, the insulation layer and the oxygen isolation layer from being damaged during the burning process, and effectively enhance the fire resistance and corrosion resistance of the cable.

[0027] The outer sheath layer 1 is made of polyolefin material, which is a halogen-free, low-smoke, flame-retardant, non-toxic and environmentally friendly material, which can effectively enhance the flame-retardant and fireproof performance of the cable and reduce the toxicity of smoke generated during the burning process.

[0028] The fireproof control cable uses mineral insulation material to wrap the conductor fireproof layer, and the ceramic fiber rope made of high-temperature resistant and flame-retardant environmentally friendly material is used as the filling layer 3, and the glass fiber belt is tightly wrapped and the metal sheath layer 2 is used. The heat release is reduced to effectively protect the insulation performance of the cable core. The outer sheath layer 1 is made of high-temperature resistant, halogen-free, low-smoke and flame-retardant polyolefin material. The polyolefin material is a halogen-free, low-smoke, flame-retardant, non-toxic and environmentally friendly material, which can effectively enhance the flame-retardant and fireproof performance of the cable and reduce the toxicity of smoke generated during the burning process. Oxygen-free copper is used as the material of the conductor main body 7, which has stable and excellent electrical conductivity, and improves the fire resistance and high temperature resistance of the cable.

[0029] It is to be noted that, in the present document, relational terms such as first and second and the like can 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. Moreover, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fireproof control cable comprising an outer sheath layer (1) arranged as an outermost layer, characterized in that, The outer sheath layer (1) is internally provided with a metal sheath layer (2), the metal sheath layer (2) is internally provided with a filling layer (3), the filling layer (3) is internally provided with an insulating isolation layer (4), the insulating isolation layer (4) is internally provided with a mineral fireproof layer (5); The insulating isolation layer (4) is internally provided with a second insulation layer (6), the second insulation layer (6) is internally provided with a conductor body (7), and the second insulation layer (6) and the conductor body (7) form a cable core.

2. A fire resistant control cable according to claim 1, characterised in that The mineral fireproof layer (5) comprises a first mica tape (51) and a second mica tape (52), the first mica tape (51) is arranged in the insulating isolation layer (4), the second mica tape (52) is arranged in the first mica tape (51), the second mica tape (52) is internally provided with a third mica tape (53), the third mica tape (53) is internally provided with a first insulation layer (54), the conductor body (7) is made of oxygen-free copper, and the first mica tape (51), the second mica tape (52) and the third mica tape (53) are all made of gold mica tape.

3. A fire resistant control cable according to claim 2, characterised in that, The first insulation layer (54) is wrapped with a mineral insulation material, and the thickness of the first insulation layer (54) is 0.5 mm.

4. A fire resistant control cable according to claim 1, characterised in that The insulating isolation layer (4) is made of cross-linked polyethylene material, and the thickness of the insulating isolation layer (4) is 0.8-2.0 mm.

5. A fire resistant control cable according to claim 1, wherein The filling layer (3) is wrapped with ceramic fiber filling rope and glass fiber tape material.

6. A fire resistant control cable according to claim 1, wherein The metal sheath layer (2) is made of soft copper tape through longitudinal coating, welding and corrugation.

7. A fire resistant control cable according to claim 1, wherein The outer sheath layer (1) is made of polyolefin material.

Images