CN210743659U

CN210743659U - Fire-resistant composite cable for smart power grids

Info

Publication number: CN210743659U
Application number: CN201921643568.XU
Authority: CN
Inventors: 方楚持
Original assignee: Hainan Witt Cable Co Ltd
Current assignee: Hainan Witt Cable Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-12
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to a smart power grids technical field just discloses a smart power grids is with fire-resistant composite cable, including the outer jacket, the inner wall fixed mounting of outer jacket has the glass fiber area. This fire-resistant composite cable for smart power grids, there is not steamed low fire-retardant polyolefin layer of cigarette and glass fiber tape through the use of fire-retardant layer, double protection has been formed, fire prevention adds high temperature resistant, provide the protection of first layer for the cable, fan-shaped structure through polyethylene structural layer, make the inside conductor of cable and the installation that optic fibre is compact together, basically not leave the space, the mica layer that uses through the flame retardant coating simultaneously, be the fire prevention high temperature resistant second layer protection of cable, the rock wool structural layer and the flame retardant coating synergism that the filling layer used, from inside fire prevention high temperature resistant, whole cable has used new inner structure, a large amount of fire prevention high temperature resistant material have been used simultaneously to the compacter, security and the fire behavior of cable have been improved in compact structure.

Description

Fire-resistant composite cable for smart power grids

Technical Field

The utility model relates to a smart power grids technical field specifically is a fire-resistant composite cable is used to smart power grids.

Background

The composite cable for the smart grid is used as a product of a user access end in smart grid construction, integrates optical fiber communication and power transmission, meets the requirements of information, automation and interaction of the smart grid, has strong advantages and wide application, and provides safe and reliable guarantee for the smart grid construction.

The general composite cable for the smart grid mostly adopts heat-resistant filling materials, is not provided with a fireproof and high-temperature-resistant protective layer, is not high-temperature-resistant and easy to burn, and can be directly damaged if a fire occurs.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a smart power grids is with fire-resistant composite cable possesses compact structure, and prevents fires advantage such as high temperature resistant, has solved the not compact enough of current cable structure, and the problem of preventing fires.

(II) technical scheme

For realize above-mentioned compact structure, and the purpose of fire prevention high temperature resistance, the utility model provides a following technical scheme: the utility model provides a fire-resistant composite cable for smart power grids, includes the outer jacket, the inner wall fixed mounting of outer jacket has the glass fiber area, the inner wall fixed mounting of glass fiber area has fire-retardant layer, the inner wall fixed mounting on fire-retardant layer has the band layer, the inner wall fixed mounting on band layer has three polyethylene structural layer, the inner wall fixed mounting on polyethylene structural layer has the insulating layer, the inner wall fixed mounting of insulating layer has the flame retardant coating, the inner wall fixed mounting of flame retardant coating has the conductor, the inside fixed mounting on band layer has optic fibre, the outside fixedly connected with filling layer of optic fibre.

Preferably, the shape of the polyethylene structure layer is fan-shaped, and the combination of the three polyethylene structure layers is circular.

Preferably, the filling layer is located between three polyethylene structural layers, and the filling layer is the rock wool structural layer.

Preferably, the outer protective layer is a halogen-free low-smoke flame-retardant polyolefin layer, and the flame-retardant layer is a low-halogen low-smoke flame-retardant PVC layer.

Preferably, the optical fiber is located at the central position inside the outer sheath, and the optical fiber is a quartz optical fiber

Preferably, the fireproof layer is a mica tape, and the thickness of the fireproof layer is not less than 3 mm.

(III) advantageous effects

Compared with the prior art, the utility model provides a smart power grids is with fire-resistant composite cable possesses following beneficial effect:

this fire-resistant composite cable for smart power grids, there is not steamed low fire-retardant polyolefin layer of cigarette and glass fiber tape through the use of fire-retardant layer, double protection has been formed, fire prevention adds high temperature resistant, provide the protection of first layer for the cable, fan-shaped structure through polyethylene structural layer, make the inside conductor of cable and the installation of optic fibre compactness together, basically not leave the space, make inside air be zero basically, prevent the high temperature ignition air of excess temperature from inside, the mica layer through the flame retardant coating use simultaneously, be the fire prevention high temperature resistant second layer protection of cable, the rock wool structural layer and the flame retardant coating synergism that the filling layer used, from inside fire prevention high temperature resistant, new inner structure has been used to whole cable, a large amount of fire prevention high temperature resistant material has been used in the compacter, security and the fire behavior of cable have been improved in compact structure.

Drawings

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

In the figure: the cable comprises an outer protective layer 1, optical fibers 2, a filling layer 3, a conductor 4, a fireproof layer 5, an insulating layer 6, a polyethylene structural layer 7, a belting layer 8, a flame-retardant layer 9 and a glass fiber tape 10.

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, a fire-resistant composite cable for a smart grid includes an outer sheath 1, and is characterized in that: the inner wall of the outer protection layer 1 is fixedly provided with a glass fiber band 10, the outer protection layer 1 is a halogen-free low-smoke flame-retardant polyolefin layer, the inner wall of the glass fiber band 10 is fixedly provided with a flame-retardant layer 9, the flame-retardant layer 9 is a low-halogen low-smoke flame-retardant PVC layer, the inner wall of the flame-retardant layer 9 is fixedly provided with a belting layer 8, the inner wall of the belting layer 8 is fixedly provided with three polyethylene structure layers 7, the polyethylene structure layers 7 are fan-shaped, the combination of the three polyethylene structure layers 7 is circular, the inner wall of the polyethylene structure layer 7 is fixedly provided with an insulating layer 6, the inner wall of the insulating layer 6 is fixedly provided with a fireproof layer 5, the fireproof layer 5 is a mica tape, the thickness of the fireproof layer 5 is not less than 3mm, the inner wall of the fireproof layer 5 is fixedly provided with a conductor 4, the inner part of the, the outside fixedly connected with filling layer 3 of optic fibre 2, filling layer 3 is located between three polyethylene structural layers 7, and filling layer 3 is the rock wool structural layer, through the halogen-free low smoke flame retardant polyolefin layer and glass fiber tape 10 that fire-retardant layer 9 used, formed the dual protection, fire prevention adds high temperature resistant, provide the first layer protection for the cable, through the fan-shaped structure of polyethylene structural layer 7, make conductor 4 and optic fibre 2 in the cable compact installation together, basically not leave the space, make the inside air basically zero, prevent the high temperature from igniting the air from inside, at the same time through the mica layer that fire barrier 5 used, it is the second layer protection of fire prevention high temperature resistant of cable, the rock wool structural layer that filling layer 3 used cooperates with fire barrier 5, from inside fire prevention high temperature resistant, the whole cable has used new inner structure, more compact while has used a large amount of fire prevention high temperature resistant material, the structure is compact, and meanwhile, the safety and the fire resistance of the cable are improved.

When using, through the halogen-free low smoke flame retardant polyolefin layer and the glass fiber tape 10 of fire-retardant layer 9 use, form dual protection, fire prevention adds high temperature resistant, provide the protection of first layer for the cable, fan-shaped structure through polyethylene structural layer 7, make the inside conductor 4 of cable and the compact installation of optic fibre 2 together, basically not leave the space, make the inside air be zero basically, prevent the too high ignition air of high temperature from inside, simultaneously through the mica layer that flame retardant coating 5 used, be the fire prevention high temperature resistant second layer protection of cable, the rock wool structural layer that filling layer 3 used cooperates with flame retardant coating 5, from inside fire prevention high temperature resistant, new inner structure has been used to whole cable, a large amount of fire prevention high temperature resistant material has been used in the compacter while, the security and the fire behavior of cable have been improved in compact structure.

To sum up, the fireproof composite cable for the smart grid forms double protection, fire resistance and high temperature resistance through the halogen-free low-smoke flame-retardant polyolefin layer used by the flame-retardant layer 9 and the glass fiber tape 10, and provides a first layer of protection for the cable, the conductor 4 and the optical fiber 2 in the cable are compactly installed together through the fan-shaped structure of the polyethylene structure layer 7, no gap is reserved basically, the internal air is basically zero, the air is prevented from being ignited due to overhigh temperature from the inside, meanwhile, the mica layer used by the fireproof layer 5 is used as a second layer of protection for the cable, the rock wool structure layer used by the filling layer 3 and the fireproof layer 5 are in synergistic action, the whole cable uses a new internal structure, is more compact and simultaneously uses a large amount of fireproof and high-temperature-resistant materials, the safety and the fireproof performance of the cable are improved while the structure is compact, the problem of current cable structure not compact enough, and not prevent fires is solved.

It is to be noted that 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-resistant composite cable for smart power grids, includes outer jacket (1), its characterized in that: the utility model discloses a fire-retardant building protective layer, including outer jacket (1), inner wall fixed mounting of glass fiber area (10) has glass fiber tape (10), the inner wall fixed mounting of glass fiber area (10) has fire-retardant layer (9), the inner wall fixed mounting of fire-retardant layer (9) has band layer (8), the inner wall fixed mounting of band layer (8) has three polyethylene structural layer (7), the inner wall fixed mounting of polyethylene structural layer (7) has insulating layer (6), the inner wall fixed mounting of insulating layer (6) has flame retardant coating (5), the inner wall fixed mounting of flame retardant coating (5) has conductor (4), the inside fixed mounting of band layer (8) has optic fibre (2), the outside fixedly connected with filling layer (3) of optic fibre (2).

2. The fire-resistant composite cable for the smart grid according to claim 1, wherein: the shape of the polyethylene structure layer (7) is fan-shaped, and the combination of the three polyethylene structure layers (7) is circular.

3. The fire-resistant composite cable for the smart grid according to claim 1, wherein: the filling layer (3) is located between the three polyethylene structure layers (7), and the filling layer (3) is a rock wool structure layer.

4. The fire-resistant composite cable for the smart grid according to claim 1, wherein: the outer protective layer (1) is a halogen-free low-smoke flame-retardant polyolefin layer, and the flame-retardant layer (9) is a low-halogen low-smoke flame-retardant PVC layer.

5. The fire-resistant composite cable for the smart grid according to claim 1, wherein: the optical fiber (2) is located in the center of the inner part of the outer protective layer (1), and the optical fiber (2) is a quartz optical fiber.

6. The fire-resistant composite cable for the smart grid according to claim 1, wherein: the fireproof layer (5) is a mica tape, and the thickness of the fireproof layer (5) is not less than 3 mm.