CN211906996U

CN211906996U - Oxygen-isolating layer copper core aluminum sheath fireproof cable

Info

Publication number: CN211906996U
Application number: CN202020189627.7U
Authority: CN
Inventors: 芮黎春
Original assignee: Wuxi City Pu Cao Technology Co ltd
Current assignee: Wuxi City Pu Cao Technology Co ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-11-10
Anticipated expiration: 2030-02-21

Abstract

The utility model discloses a separate oxygen layer copper core aluminium sheath fireproof cable relates to cable technical field, only has one deck fire prevention material usually for solving current cable, and the effect is general, if be used for transmitting high-power electric energy, in case the great problem of conflagration loss takes place. Be provided with anticorrosive protection film on the outer wall of fire-retardant polyvinyl fluoride sheath, be provided with the fireproof cotton on the inner wall of fire-retardant polyvinyl fluoride sheath, be provided with the aluminium metal cover on the fireproof cotton's the inner wall, be provided with on the inner wall of aluminium metal cover and separate the oxygen layer, the inside that separates the oxygen layer is provided with the copper core conductor, and the copper core conductor is provided with threely, be provided with the protective layer on the outer wall of copper core conductor, the protective layer includes shielding layer, the synthetic mica tape of single face, insulating layer and water proof tape.

Description

Oxygen-isolating layer copper core aluminum sheath fireproof cable

Technical Field

The utility model relates to the technical field of cables, specifically be an oxygen layer copper core aluminium sheath fireproof cable separates.

Background

The cable is used for transmitting and distributing electric energy and is commonly used for urban underground power grids, leading-out lines of power stations, internal power supply of industrial and mining enterprises and underwater power transmission lines crossing rivers and sea. In an electric power line, the proportion of the cable is gradually increasing, the cable is a cable product used for transmitting and distributing high-power electric energy in a main line of an electric power system, and comprises various voltage grades of 1-500 KV and above, the cable is various insulated cables, the cable is generally a cable similar to a rope formed by twisting at least two stranded groups of a plurality of or groups of leads, each group of leads is mutually insulated and is usually twisted around a center, a highly insulated covering layer is wrapped outside the whole cable, the types of the cables are various, and the cable can be applied to different fields, and the use environments of the fields are different, so that the cable also has different requirements. Cables are classified into medium and low voltage power cables (35 kv and below), high voltage cables (110 kv and above), ultra high voltage cables (275-800 kv) and extra high voltage cables (1000 kv and above) according to voltage class.

However, the existing cable is usually only made of one layer of fireproof material, and has a common effect, and if the cable is used for transmitting high-power electric energy, once a fire disaster occurs, the loss is large; therefore, the existing requirements are not met, and the fireproof cable with the oxygen-isolating layer and the copper core and the aluminum sheath is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a separate oxygen layer copper core aluminium sheath fireproof cable to the current cable that provides in solving above-mentioned background art only has one deck fire prevention material usually, and the effect is general, if be used for transmitting high-power electric energy, in case the great problem of conflagration emergence loss.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a separate oxygen layer copper core aluminium sheath fireproof cable, includes fire-retardant polyfluoroethylene sheath, be provided with anticorrosive protection film on the outer wall of fire-retardant polyfluoroethylene sheath, be provided with fire prevention cotton on the inner wall of fire-retardant polyfluoroethylene sheath, be provided with the aluminium metal covering on the cotton inner wall of fire prevention, be provided with on the inner wall of aluminium metal covering and separate the oxygen layer, the inside that separates the oxygen layer is provided with the copper core conductor, and the copper core conductor is provided with threely, be provided with the protective layer on the outer wall of copper core conductor, the protective layer includes shielding layer, the synthetic mica tape of single face, insulating layer and water-stop strip.

Preferably, the three copper core conductors are provided with three rubber filling lines outside.

Preferably, the shielding layer is arranged on the outer wall of the copper core conductor.

Preferably, the single-sided synthetic mica tape is arranged on the outer wall of the shielding layer.

Preferably, the insulating layer is arranged between the single-sided synthetic mica tape and the water-resisting tape.

Preferably, the fireproof cotton is arranged between the flame-retardant polyvinyl fluoride sheath and the aluminum metal sheath.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up fire-retardant polyvinyl fluoride sheath, fire prevention cotton and metal covering inside the cable, fire the polyvinyl fluoride sheath and played insulating and fire-retardant effect, the cotton effect that can play thermal-insulated fire prevention of fire prevention, the aluminium metal covering has good high temperature resistance equally, can not warp under high temperature environment, and improved cable strength, multiple fire-retardant setting can prevent stretching of intensity of a fire, limit the burning in local range, effectively reduced the loss after the calamity.

2. The single-sided synthetic mica tape is wrapped on the outer wall of the copper core conductor, the single-sided synthetic mica tape takes synthetic mica paper as a base material, and glass fiber cloth as a single-sided reinforcing material, so that mineral mica can be cured in a high-temperature environment, a fire-proof effect is achieved, and short circuit of a cable is avoided.

3. Through set up in cable inside and separate the oxygen layer, separate the oxygen layer and support through three rubber filling lines, completely cut off the inside oxygen of cable, stopped the risk of the inside spontaneous combustion of cable.

Drawings

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

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a partial enlarged view of the point A of the present invention;

in the figure: 1. a flame-retardant polyvinyl fluoride sheath; 2. a corrosion-resistant protective film; 3. fireproof cotton; 4. an aluminum metal sleeve; 5. an oxygen barrier layer; 6. a copper-core conductor; 7. a protective layer; 701. a shielding layer; 702. synthesizing a mica tape on a single surface; 703. an insulating layer; 704. a water-stop strip; 8. and filling the wires with rubber.

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.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a separate oxygen layer copper core aluminium sheath fireproof cable, including fire-retardant polyvinyl fluoride sheath 1, be provided with anticorrosive protection film 2 on fire-retardant polyvinyl fluoride sheath 1's the outer wall, anticorrosive protection film 2 is the PE material, good corrosion resistance has, be provided with fireproof cotton 3 on fire-retardant polyvinyl fluoride sheath 1's the inner wall, be provided with aluminium metal covering 4 on fireproof cotton 3's the inner wall, be provided with on aluminium metal covering 4's the inner wall and separate oxygen layer 5, the inside that separates oxygen layer 5 is provided with copper core conductor 6, and copper core conductor 6 is provided with threely, be provided with protective layer 7 on copper core conductor 6's the outer wall, protective layer 7 includes shielding layer 701, the synthetic mica tape 702 of single face, insulating layer 703 and water-stop strip 704.

Further, the outside of three copper core conductor 6 all is provided with rubber filling line 8, and rubber filling line 8 is provided with threely, and three rubber filling line 8 can fill the inside vacancy space of cable, reaches the effect of the fixed copper core conductor 6 of extrusion, and copper core conductor 6 is provided with threely, can effectively improve the circular telegram efficiency of cable.

Further, shielding layer 701 sets up on copper core conductor 6's outer wall, and shielding layer 701 forms for the copper line is worked out, with copper core conductor 6 equipotential to well contact with insulating layer 703, thereby avoided taking place partial discharge between copper core conductor 6 and insulating layer 703, and can improve the interference killing feature of cable.

Further, the single-sided synthetic mica tape 702 is arranged on the outer wall of the shielding layer 701, the single-sided synthetic mica tape 702 takes synthetic mica paper as a base material, glass fiber cloth as a single-sided reinforcing material, and mineral mica can be cured under a high-temperature environment to play a role in fire insulation and avoid short circuit of the cable.

Further, the insulating layer 703 is arranged between the single-sided synthetic mica tape 702 and the water-stop tape 704, and the water-stop tape 704 has a good waterproof effect, so that the waterproof performance of the cable can be improved, and the insulating effect can be prevented from being affected by moisture of the insulating layer 703.

Further, the fireproof cotton 3 sets up between fire-retardant polyvinyl fluoride sheath 1 and aluminium metal covering 4, and fire-retardant polyvinyl fluoride sheath 1 has played insulating and fire-retardant effect, and the fireproof cotton 3 can play thermal-insulated fireproof's effect, and aluminium metal covering 4 has good high temperature resistance equally, can not warp under high temperature environment, and has improved cable strength.

The working principle is as follows: when in use, the flame-retardant polyvinyl fluoride sheath 1 is arranged inside the cable, the flame-retardant polyvinyl fluoride sheath 1 has insulation and flame-retardant effects, the fireproof cotton 3 inside the cable enhances the heat insulation and fire prevention functions of the power cable, the fireproof cotton 3 is wrapped on the outer wall of the aluminum metal sleeve 4, the aluminum metal sleeve 4 also has good high temperature resistance, can not deform in a high-temperature environment and improves the strength of the cable, the oxygen insulation layer 5 is arranged inside the cable to insulate oxygen inside the cable and avoid the risk of spontaneous combustion inside the cable, the single-sided synthetic mica tape 702 is wrapped outside the copper core conductor 6, the single-sided synthetic mica tape 702 takes synthetic mica paper as a base material, the glass fiber cloth is used as a single-sided reinforcing material, mica minerals can be solidified in a high-temperature environment to play a fire insulation role, the cable is prevented from being immediately short-circuited in a fire disaster, multiple flame-retardant settings can prevent the spread of fire, the combustion is limited in a local range, and the post-disaster loss is effectively reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a separate oxygen layer copper core aluminium sheath fireproof cable, includes fire-retardant polyvinyl fluoride sheath (1), its characterized in that: be provided with anticorrosive protection film (2) on the outer wall of fire-retardant polyvinyl fluoride sheath (1), be provided with fireproof cotton (3) on the inner wall of fire-retardant polyvinyl fluoride sheath (1), be provided with aluminium metal cover (4) on the inner wall of fireproof cotton (3), be provided with on the inner wall of aluminium metal cover (4) and separate oxygen layer (5), the inside that separates oxygen layer (5) is provided with copper core conductor (6), and copper core conductor (6) are provided with threely, be provided with protective layer (7) on the outer wall of copper core conductor (6), protective layer (7) are including shielding layer (701), the synthetic mica tape of single face (702), insulating layer (703) and water-stop strip (704).

2. The oxygen barrier copper core aluminum sheath fireproof cable of claim 1, wherein: the three copper core conductors (6) are all provided with rubber filling lines (8) outside, and the rubber filling lines (8) are provided with three.

3. The oxygen barrier copper core aluminum sheath fireproof cable of claim 1, wherein: the shielding layer (701) is arranged on the outer wall of the copper core conductor (6).

4. The oxygen barrier copper core aluminum sheath fireproof cable of claim 1, wherein: the single-sided synthetic mica tape (702) is arranged on the outer wall of the shielding layer (701).

5. The oxygen barrier copper core aluminum sheath fireproof cable of claim 1, wherein: the insulating layer (703) is arranged between the single-sided synthetic mica tape (702) and the water-resisting tape (704).

6. The oxygen barrier copper core aluminum sheath fireproof cable of claim 1, wherein: the fireproof cotton (3) is arranged between the flame-retardant polyvinyl fluoride sheath (1) and the aluminum metal sleeve (4).