CN216647919U

CN216647919U - Flame-retardant power cable

Info

Publication number: CN216647919U
Application number: CN202122138140.3U
Authority: CN
Inventors: 管荣华
Original assignee: Shanghai Yeshen Technology Co ltd
Current assignee: Shanghai Yeshen Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-05-31
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of power cables, and discloses a flame-retardant power cable which comprises a sheath and a cable core, wherein the cable core is arranged on the inner side of the sheath, the sheath comprises a first corrosion-resistant layer, a first fireproof layer, a second corrosion-resistant layer, a waterproof layer, an impermeable layer, a heat-insulating layer, a second fireproof layer and a first flame-retardant layer, the first fireproof layer is arranged on the inner side of the first corrosion-resistant layer, and the second corrosion-resistant layer is arranged on the inner side of the first fireproof layer. According to the utility model, through the matched arrangement of the first fireproof layer, the heat insulation layer, the second fireproof layer, the first flame-retardant layer and the second flame-retardant layer, the flame-retardant effect of the cable can be effectively improved, the cable is prevented from being ignited when short circuit or open fire occurs, and through the matched arrangement of the first corrosion-resistant layer, the second corrosion-resistant layer and the corrosion-resistant layer, the sheath and the cable core can both have good corrosion-resistant effect, so that the corrosion resistance of the cable can be effectively improved.

Description

Flame-retardant power cable

Technical Field

The utility model relates to the technical field of power cables, in particular to a flame-retardant power cable.

Background

The power cable is mainly 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, underwater power transmission lines crossing rivers and seas and the like. In the power lines, the proportion of cables is increasing, and power cables are cable products used for transmitting and distributing high-power electric energy in the main lines of power systems, including various voltage levels of 1-500KV and above, and various insulated power cables.

Some power cables currently on the market:

(1) in the using process of the power cable, due to the poor flame retardant effect of the existing power cable, when the cable is in short circuit or encounters a fire, the fire is easy to further expand, thereby affecting the life and property safety of people;

(2) in the in-process that uses at power cable, because the relatively poor reason of current power cable corrosion-resistant effect, easily lead to external corrosive substance to lead to the fact the corruption to the cable to lead to the cable core can't obtain effectual protection, easily take place the risk of electrocuteeing.

We have therefore proposed a flame retardant power cable in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art in the background art, the utility model aims to provide a flame-retardant power cable to solve the problems of poor flame-retardant effect and poor corrosion resistance effect of some flame-retardant power cables in the current market proposed in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the flame-retardant power cable comprises a sheath and a cable core, wherein the cable core is arranged on the inner side of the sheath;

the protective sleeve comprises a first corrosion-resistant layer, a first fireproof layer, a second corrosion-resistant layer, a waterproof layer, an impermeable layer, a heat-insulating layer, a second fireproof layer and a first flame-retardant layer, wherein the first fireproof layer is arranged on the inner side of the first corrosion-resistant layer;

the cable core includes sinle silk, anticorrosive coating, the fire-retardant layer of second, the anticorrosive coating is located the outside setting of sinle silk, the fire-retardant layer of second is located the outside setting of anticorrosive coating.

Preferably, the first corrosion-resistant layer is formed by spraying corrosion-resistant paint, and the first fireproof layer is made of fireproof membrane material.

Preferably, the second corrosion-resistant layer is made of a polyester tree finger material, the waterproof layer is made of a waterproof membrane material, and the impermeable layer is made of a geomembrane material.

Preferably, the heat insulation layer is made of a glass fiber material, the second fireproof layer is made of a rock wool material, and the first flame-retardant layer is made of a flame-retardant film material.

Furthermore, a filling layer is arranged on the inner side of the first flame-retardant layer, the filling layer is made of glass fiber rope materials, the anticorrosive layer is made of polyvinyl chloride materials, and the second flame-retardant layer is made of ceramic fiber materials.

(III) advantageous effects

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

(1) the flame-retardant effect of the cable can be effectively improved by matching the first fireproof layer, the heat insulation layer, the second fireproof layer, the first flame-retardant layer and the second flame-retardant layer, the cable is prevented from being ignited when being short-circuited or encountering open fire, and the fire is prevented from further expanding.

(2) The sheath and the cable core can have good corrosion resistance effect by matching the first corrosion-resistant layer, the second corrosion-resistant layer and the corrosion-resistant layer, so that the corrosion resistance of the cable can be effectively improved, and the cable is prevented from being damaged due to external corrosion.

Drawings

Fig. 1 is a schematic overall front view of the flame retardant power cable of the present invention;

fig. 2 is a schematic cross-sectional view of the flame-retardant power cable according to the present invention.

In the figure: 1. a sheath; 2. a cable core; 3. a first corrosion-resistant layer; 4. a first fire resistant layer; 5. a second corrosion-resistant layer; 6. a waterproof layer; 7. an impermeable layer; 8. a thermal insulation layer; 9. a second fire-resistant layer; 10. a first flame retardant layer; 11. a filling layer; 12. a wire core; 13. an anticorrosive layer; 14. a second flame retardant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a flame retardant power cable; the cable comprises a sheath 1 and a cable core 2, wherein the cable core 2 is arranged at the inner side of the sheath 1;

the sheath 1 comprises a first corrosion-resistant layer 3, a first fireproof layer 4, a second corrosion-resistant layer 5, a waterproof layer 6, an impermeable layer 7, a heat-insulating layer 8, a second fireproof layer 9 and a first flame-retardant layer 10, wherein the first fireproof layer 4 is arranged on the inner side of the first corrosion-resistant layer 3, the second corrosion-resistant layer 5 is arranged on the inner side of the first fireproof layer 4, the waterproof layer 6 is arranged on the inner side of the second corrosion-resistant layer 5, the impermeable layer 7 is arranged on the inner side of the waterproof layer 6, the heat-insulating layer 8 is arranged on the inner side of the impermeable layer 7, the second fireproof layer 9 is arranged on the inner side of the heat-insulating layer 8, and the first flame-retardant layer 10 is arranged on the inner side of the second fireproof layer 9;

the cable core 2 comprises a cable core 12, an anticorrosive layer 13 and a second flame-retardant layer 14, wherein the anticorrosive layer 13 is arranged on the outer side of the cable core 12, and the second flame-retardant layer 14 is arranged on the outer side of the anticorrosive layer 13;

according to the illustration of fig. 2, as a preferred embodiment of the present invention: the first corrosion-resistant layer 3 is formed by spraying corrosion-resistant paint, and the first fireproof layer 4 is made of fireproof film material;

according to the illustration of fig. 2, as a preferred embodiment of the present invention: the second corrosion-resistant layer 5 is made of a polyester tree finger material, the waterproof layer 6 is made of a waterproof membrane material, the impermeable layer 7 is made of a geomembrane material, and external rainwater can be prevented from permeating the cable core 2 through the matching arrangement between the waterproof layer 6 and the impermeable layer 7, so that the waterproof effect of the cable is ensured;

according to the illustration of fig. 2, as a preferred embodiment of the present invention: the heat insulation layer 8 is made of a glass fiber material, the second fireproof layer 9 is made of a rock wool material, and the first flame retardant layer 10 is made of a flame retardant film material;

according to the illustration of fig. 2, as a preferred embodiment of the present invention: the inner side of the first flame-retardant layer 10 is provided with a filling layer 11, the filling layer 11 is made of a glass fiber rope material, the anticorrosive layer 13 is made of a polyvinyl chloride material, and the second flame-retardant layer 14 is made of a ceramic fiber material.

Those not described in detail in this specification are well within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, may be fixedly connected or detachably connected; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations; it will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims

1. The flame-retardant power cable comprises a sheath (1) and a cable core (2), and is characterized in that the cable core (2) is arranged on the inner side of the sheath (1);

the protective sleeve (1) comprises a first corrosion-resistant layer (3), a first fireproof layer (4), a second corrosion-resistant layer (5), a waterproof layer (6), an impermeable layer (7), a heat-insulating layer (8), a second fireproof layer (9) and a first flame-retardant layer (10), wherein the first fireproof layer (4) is arranged on the inner side of the first corrosion-resistant layer (3), the second corrosion-resistant layer (5) is arranged on the inner side of the first fireproof layer (4), the waterproof layer (6) is arranged on the inner side of the second corrosion-resistant layer (5), the impermeable layer (7) is arranged on the inner side of the waterproof layer (6), the heat-insulating layer (8) is arranged on the inner side of the impermeable layer (7), the second fireproof layer (9) is arranged on the inner side of the heat-insulating layer (8), and the first flame-retardant layer (10) is arranged on the inner side of the second fireproof layer (9);

the cable core (2) comprises a cable core (12), an anticorrosive layer (13) and a second flame-retardant layer (14), wherein the anticorrosive layer (13) is arranged on the outer side of the cable core (12), and the second flame-retardant layer (14) is arranged on the outer side of the anticorrosive layer (13).

2. The flame-retardant power cable according to claim 1, wherein the first corrosion-resistant layer (3) is formed by spraying a corrosion-resistant coating, and the first flame-retardant layer (4) is made of a flame-retardant film material.

3. The flame-retardant power cable according to claim 1, wherein the second corrosion-resistant layer (5) is made of a polyester resin material, the waterproof layer (6) is made of a waterproof membrane material, and the impermeable layer (7) is made of a geomembrane material.

4. The flame retardant power cable according to claim 1, wherein the thermal insulation layer (8) is made of a fiberglass material, the second flame retardant layer (9) is made of a rock wool material, and the first flame retardant layer (10) is made of a flame retardant film material.

5. The flame retardant type power cable according to claim 1, wherein a filling layer (11) is disposed on the inner side of the first flame retardant layer (10), the filling layer (11) is made of a glass fiber rope material, the corrosion prevention layer (13) is made of a polyvinyl chloride material, and the second flame retardant layer (14) is made of a ceramic fiber material.