CN214203287U

CN214203287U - High-performance flame-retardant barrier B1-grade cable

Info

Publication number: CN214203287U
Application number: CN202120405765.9U
Authority: CN
Inventors: 游靖华; 卫建良; 崔科; 王雪; 胡丙强; 孙勇
Original assignee: Hubei Longteng Hongqi Cable Group Co ltd
Current assignee: Hubei Longteng Hongqi Cable Group Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-14
Anticipated expiration: 2031-02-24

Abstract

A high-performance flame-retardant barrier B1-grade cable comprises a flame-retardant polyolefin outer protector, flame-retardant filling is fixedly arranged inside the flame-retardant polyolefin outer protector, a flame-retardant layer is fixedly arranged on the inner wall of the flame-retardant polyolefin outer protector, a flame-retardant polyolefin oxygen-isolating layer is fixedly arranged inside the flame-retardant polyolefin outer protector, a halogen-free low-smoke high-flame-retardant tape wrapping is fixedly arranged on the inner wall of the flame-retardant polyolefin oxygen-isolating layer, an anti-corrosion device is arranged inside the flame-retardant polyolefin oxygen-isolating layer, two groups of first conductor devices are arranged on the upper portion of an inner cavity of the anti-corrosion device, two groups of second conductor devices are arranged on the lower portion of the inner cavity of the anti-corrosion device, and magnesium hydroxide mixture filling is arranged, so that magnesium hydroxide mixture filling can be decomposed into magnesium oxide and water in the cable combustion process, the flame temperature is effectively reduced through the existence of water, the combustion of the flame is prevented, the fire resistance of the cable is further effectively improved, And (4) flame retardant effect.

Description

High-performance flame-retardant barrier B1-grade cable

Technical Field

The utility model belongs to the technical field of the cable technique and specifically relates to a fire-retardant separation B1 level cable of high performance.

Background

The cable is an electric energy or signal transmission device, and generally comprises several or several groups of conducting wires, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

The prior art has the following defects or problems:

1. the existing cable has poor flame retardant effect when in use, thereby causing damage to the cable and improving potential safety hazard;

2. the existing cable is easy to corrode after long-term use, and the service life of the cable is shortened.

Disclosure of Invention

An object of the utility model is to prior art's weak point, provide a fire-retardant separation B1 level cable of high performance to it is poor to solve flame retardant efficiency, easily receives the problem of corruption.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant separation B level cable of high performance, protect outside including fire-retardant polyolefin, the inside fixed mounting that fire-retardant polyolefin was protected has fire-retardant packing, the inner wall fixed mounting that fire-retardant polyolefin was protected has fire-retardant layer, the inside fixed mounting that fire-retardant polyolefin was protected has fire-retardant polyolefin to separate the oxygen layer, the inner wall fixed mounting that fire-retardant polyolefin separates the oxygen layer has zero halogen low cigarette high flame retardant tape to wind the package, fire-retardant polyolefin separates the inside on oxygen layer and is provided with corrosion prevention device, corrosion prevention device's inner chamber upper portion is provided with two sets of first conductor device, corrosion prevention device's inner chamber lower part is provided with two sets of second conductor device.

As the utility model discloses an preferred technical scheme, the anticorrosion device includes the galvanized steel strip, and the inner wall fixed mounting of galvanized steel strip has the PVC layer, and the inside fixed mounting of galvanized steel strip has the magnesium hydrate mixture to fill, and galvanized steel strip fixed connection separates oxygen layer fixed connection with anticorrosion device and fire-retardant polyolefin in the inside that fire-retardant polyolefin separates the oxygen layer.

As the utility model discloses a preferred technical scheme, first conductor device includes first irradiation crosslinked polyethylene insulating layer, and the inside fixed mounting of first irradiation crosslinked polyethylene insulating layer has first mica tape, and the inner chamber swing joint of first mica tape has the first copper conductor of a plurality of groups, and first irradiation crosslinked polyethylene insulating layer fixed connection is with first conductor device and anticorrosion device fixed connection on anticorrosion device's upper portion.

As the utility model discloses a preferred technical scheme, second conductor device includes second irradiation crosslinked polyethylene insulating layer, and the inside fixed mounting of second irradiation crosslinked polyethylene insulating layer has the second mica tape, and the inner chamber swing joint of second mica tape has a plurality of groups second copper conductor, and second irradiation crosslinked polyethylene insulating layer fixed connection is with second conductor device and anti-corrosion device fixed connection in anti-corrosion device's lower part.

As the preferred technical scheme of the utility model, first conductor device and second conductor device are in on same vertical line.

As a preferred technical proposal of the utility model, the PVC layer is contacted with the outer surface filled with the magnesium hydroxide mixture.

Compared with the prior art, the utility model provides a fire-retardant separation B1 level cable of high performance possesses following beneficial effect:

1. through being provided with outer protecting of fire-retardant polyolefin and separating oxygen layer and can go out most heat reflection, in order to reduce the temperature influence of outside heat to internal structure, further effectively prevent outside heat to the conduction of copper conductor, be provided with magnesium hydrate mixture simultaneously and fill, magnesium hydrate mixture fills and can make magnesium hydrate mixture fill and decompose into magnesium oxide and water in cable combustion process, through the existence of moisture and effectively reduce flame temperature, prevent its burning, further effectively improved its fire prevention, flame retardant efficiency.

2. The galvanized steel strip is processed by the procedures of pickling, galvanizing, packaging and the like of a common steel strip, and has good corrosion resistance, and the PVC layer is also arranged, the PVC material is a non-crystalline material, and a stabilizer, a lubricant, an auxiliary processing agent, a pigment, an impact resistance agent and other additives are frequently added in actual use, so that the PVC layer has strong resistance to an oxidant, a reducing agent and strong acid, and the corrosion resistance effect is improved.

Drawings

Fig. 1 is an overall perspective view of the present invention;

FIG. 2 is a perspective view of the corrosion prevention device of the present invention;

fig. 3 is a schematic perspective view of a first conductor device according to the present invention;

fig. 4 is a perspective view of a second conductor device according to the present invention.

In the figure: 1. flame-retardant polyolefin outer protection; 2. flame-retardant filling; 3. a flame retardant layer; 4. a flame retardant polyolefin oxygen barrier layer; 5. wrapping the halogen-free low-smoke high-flame-retardant belt; 6. an anti-corrosion device; 7. a first conductor arrangement; 8. a second conductor arrangement; 61. a galvanized steel strip; 62. a PVC layer; 63. filling a magnesium hydroxide mixture; 71. a first irradiation crosslinked polyethylene insulation layer; 72. a first mica tape; 73. a first copper conductor; 81. a second irradiation crosslinked polyethylene insulation layer; 82. a second mica tape; 83. a second copper conductor.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, in this embodiment: the utility model provides a fire-retardant separation B1 level cable of high performance, 1 outside including fire-retardant polyolefin, the inside fixed mounting of 1 outside fire-retardant polyolefin has fire-retardant packing 2, the inner wall fixed mounting of 1 outside fire-retardant polyolefin has fire-retardant layer 3, the inside fixed mounting of 1 outside fire-retardant polyolefin separates oxygen layer 4 by fire-retardant polyolefin, through being provided with 1 outside fire-retardant polyolefin and fire-retardant polyolefin separate oxygen layer 4 and can reflect most heat away, in order to reduce the temperature influence of outside heat to the internal structure spare, fire-retardant polyolefin separates the inner wall fixed mounting of oxygen layer 4 and has low smoke and zero halogen high flame retardant tape to wrap package 5, fire-retardant polyolefin separates the inside of oxygen layer 4 and is provided with corrosion prevention device 6, the inner chamber upper portion of corrosion prevention device 6 is provided with two sets of first conductor device 7, the inner chamber lower part of corrosion prevention device 6 is provided with two sets of second conductor device 8.

In the embodiment, the anti-corrosion device 6 comprises a galvanized steel strip 61, the galvanized steel strip 61 is formed by pickling, galvanizing, packaging and other processes of a common steel strip, and as the galvanized steel strip 61 has good anti-corrosion performance, the inner wall of the galvanized steel strip 61 is fixedly provided with a PVC layer 62, the PVC layer 62 is provided, the PVC material is a non-crystalline material, and a stabilizer, a lubricant, an auxiliary processing agent, a pigment, an impact resistance agent and other additives are frequently added in actual use, so that the PVC layer 62 has strong resistance to an oxidant, a reducing agent and a strong acid, the anti-corrosion effect is improved, the magnesium hydroxide mixture filling 63 is fixedly arranged in the galvanized steel strip 61, the magnesium hydroxide mixture filling 63 can decompose the magnesium hydroxide mixture filling 63 into magnesium oxide and water in the cable combustion process, the flame temperature is effectively reduced through the existence of water, and the combustion is prevented, the fireproof and flame-retardant effects of the paint are further effectively improved, and the galvanized steel strip 61 is fixedly connected inside the flame-retardant polyolefin oxygen-barrier layer 4 to fixedly connect the anti-corrosion device 6 and the flame-retardant polyolefin oxygen-barrier layer 4; the first conductor device 7 comprises a first irradiation crosslinked polyethylene insulating layer 71, a first mica tape 72 is fixedly installed inside the first irradiation crosslinked polyethylene insulating layer 71, a plurality of groups of first copper conductors 73 are movably connected to the inner cavity of the first mica tape 72, and the first irradiation crosslinked polyethylene insulating layer 71 is fixedly connected to the upper part of the anti-corrosion device 6 to fixedly connect the first conductor device 7 and the anti-corrosion device 6; the second conductor device 8 comprises a second irradiation crosslinked polyethylene insulating layer 81, a second mica tape 82 is fixedly installed inside the second irradiation crosslinked polyethylene insulating layer 81, a plurality of groups of second copper conductors 83 are movably connected to the inner cavity of the second mica tape 82, and the second irradiation crosslinked polyethylene insulating layer 81 is fixedly connected to the lower part of the anti-corrosion device 6 so as to fixedly connect the second conductor device 8 and the anti-corrosion device 6; the first conductor means 7 and the second conductor means 8 are on the same vertical line; the PVC layer 62 is in contact with the outer surface of the magnesium hydroxide mixture fill 63.

The utility model discloses a theory of operation and use flow: most of heat can be reflected out by arranging the flame-retardant polyolefin outer protection layer 1 and the flame-retardant polyolefin oxygen-isolating layer 4, so that the temperature influence of external heat on an internal structural component is reduced, the external heat is further effectively prevented from being conducted to a copper conductor, meanwhile, the magnesium hydroxide mixture filling 63 is arranged, the magnesium hydroxide mixture filling 63 can enable the magnesium hydroxide mixture filling 63 to be decomposed into magnesium oxide and water in the cable combustion process, the flame temperature is effectively reduced through the existence of moisture, the combustion is prevented, and the fireproof and flame-retardant effects are further effectively improved; the galvanized steel strip 61 is processed by the procedures of pickling, galvanizing, packaging and the like of a common steel strip, and the PVC layer 62 is arranged because of good corrosion resistance, and the PVC material is a non-crystalline material, and a stabilizer, a lubricant, an auxiliary processing agent, a pigment, an impact resistance agent and other additives are frequently added in actual use, so that the PVC layer 62 has strong resistance to an oxidant, a reducing agent and strong acid, and the corrosion resistance effect is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-performance flame-retardant barrier B1 grade cable comprises a flame-retardant polyolefin outer sheath (1), and is characterized in that: the flame-retardant cable comprises a flame-retardant polyolefin outer protection sleeve (1), flame-retardant filling (2) is fixedly arranged inside the flame-retardant polyolefin outer protection sleeve (1), a flame-retardant layer (3) is fixedly arranged on the inner wall of the flame-retardant polyolefin outer protection sleeve (1), a flame-retardant polyolefin oxygen separation layer (4) is fixedly arranged inside the flame-retardant polyolefin outer protection sleeve (1), a halogen-free low-smoke high-flame-retardant belt wrapping (5) is fixedly arranged on the inner wall of the flame-retardant polyolefin oxygen separation layer (4), an anti-corrosion device (6) is arranged inside the flame-retardant polyolefin oxygen separation layer (4), two sets of first conductor devices (7) are arranged on the upper portion of an inner cavity of the anti-corrosion device (6), and two sets of second conductor devices (8) are arranged on the lower portion of the inner cavity of the anti-corrosion device (6).

2. The high performance flame retardant barrier B1 grade cable of claim 1, wherein: the anti-corrosion device (6) comprises a galvanized steel strip (61), a PVC layer (62) is fixedly mounted on the inner wall of the galvanized steel strip (61), magnesium hydroxide mixture filling (63) is fixedly mounted inside the galvanized steel strip (61), and the galvanized steel strip (61) is fixedly connected inside the flame-retardant polyolefin oxygen-insulating layer (4) to fixedly connect the anti-corrosion device (6) and the flame-retardant polyolefin oxygen-insulating layer (4).

3. The high performance flame retardant barrier B1 grade cable of claim 1, wherein: the first conductor device (7) comprises a first irradiation crosslinking polyethylene insulating layer (71), a first mica tape (72) is fixedly mounted inside the first irradiation crosslinking polyethylene insulating layer (71), a plurality of groups of first copper conductors (73) are movably connected to the inner cavity of the first mica tape (72), and the first irradiation crosslinking polyethylene insulating layer (71) is fixedly connected to the upper part of the anti-corrosion device (6) to fixedly connect the first conductor device (7) and the anti-corrosion device (6).

4. The high performance flame retardant barrier B1 grade cable of claim 1, wherein: the second conductor device (8) comprises a second irradiation crosslinked polyethylene insulating layer (81), a second mica tape (82) is fixedly mounted inside the second irradiation crosslinked polyethylene insulating layer (81), a plurality of groups of second copper conductors (83) are movably connected to the inner cavity of the second mica tape (82), and the second irradiation crosslinked polyethylene insulating layer (81) is fixedly connected to the lower portion of the anti-corrosion device (6) to fixedly connect the second conductor device (8) with the anti-corrosion device (6).

5. The high performance flame retardant barrier B1 grade cable of claim 1, wherein: the first conductor means (7) and the second conductor means (8) are on the same vertical line.

6. The high performance flame retardant barrier B1 grade cable of claim 2, wherein: the PVC layer (62) is in contact with the outer surface of the magnesium hydroxide mixture filling (63).