CN213635451U

CN213635451U - Fire-resistant power cable of fire-retardant low smoke and zero halogen of B1 class

Info

Publication number: CN213635451U
Application number: CN202022845883.XU
Authority: CN
Inventors: 张平凡; 杨全法; 张盼锋; 张钰涛
Original assignee: Shaanxi Xite Cable Co ltd
Current assignee: Shaanxi Xite Cable Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-07-06
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a fire-resistant power cable of fire-retardant low smoke and zero halogen of B1 class, comprising a base layer, the inner wall fixedly connected with cable core of basic unit, the fixed surface of basic unit is connected with the inoxidizing coating, the fixed surface of inoxidizing coating is connected with resistant time layer, the fixed surface of resistant time layer is connected with protection against rodents layer, the fixed surface of protection against rodents layer is connected with low smoke and zero halogen fire-retardant polyolefin restrictive coating, resistant time layer includes first corrosion resistant layer, the fixed surface of first corrosion resistant layer is connected with second corrosion resistant layer. The utility model discloses possessing the advantage that protection against rodents function and weatherability are good, having solved current power cable, in the use, do not have protection against rodents function usually, lead to power cable to receive gnawing of rodent easily when using for a long time to cause cable leakage phenomenon, and because single structure, cable surface's ageing-resistant and corrosion resisting property are relatively poor, have reduced power cable life's problem.

Description

Fire-resistant power cable of fire-retardant low smoke and zero halogen of B1 class

Technical Field

The utility model relates to a power cable technical field specifically is fire-retardant low smoke and zero halogen fire-resistant power cable of B1 class.

Background

The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater, and has a gradually increasing proportion in the power line.

Current power cable does not have the protection against rodents function usually in the use, leads to power cable to receive gnawing of rodent easily when long-term the use to cause the cable electric leakage phenomenon, and because single structure, the ageing-resistant and corrosion resisting property on cable surface is relatively poor, has reduced power cable's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant low smoke and zero halogen fire-resistant power cable of B1 class possesses the advantage that protection against rodents function and weatherability are good, has solved current power cable, in the use, does not have protection against rodents function usually, leads to power cable to receive gnawing of rodent when using for a long time easily to cause cable electric leakage phenomenon, and because single structure, cable surface's ageing-resistant and corrosion resisting property are relatively poor, have reduced power cable life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: fire-resistant power cable of fire-retardant low smoke and zero halogen of B1 class, including the basic unit, the inner wall fixedly connected with cable core of basic unit, the surface fixedly connected with inoxidizing coating of basic unit, the surface fixedly connected with resistant layer of the inoxidizing coating, the surface fixedly connected with protection against rodents layer of resistant layer, the surface fixedly connected with low smoke and zero halogen fire-retardant polyolefin restrictive coating on protection against rodents layer, resistant layer includes first corrosion resistant layer, the surface fixedly connected with second corrosion resistant layer on first corrosion resistant layer, protection against rodents layer includes fire-retardant layer, the surface fixedly connected with layer of repelling rats on fire-retardant layer, the surface fixedly connected with armor weaving layer on layer of repelling rats.

Preferably, the protective layer comprises a first heat-resistant layer, and a second heat-resistant layer is fixedly connected to the outer surface of the first heat-resistant layer.

Preferably, the first heat-resistant layer is made of polyvinylidene fluoride, and the second heat-resistant layer is made of polytetrafluoroethylene.

Preferably, the first corrosion-resistant layer is made of ethylene propylene rubber, and the second corrosion-resistant layer is made of butyl rubber.

Preferably, the flame-retardant layer is made of mica tapes, the rat repelling layer is made of capsaicin, and the armor weaving layer is made of galvanized steel wires.

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

1. the utility model discloses a basic unit, the cable core, the inoxidizing coating, resistant time layer, protection against rodents layer, low smoke and zero halogen flame retardant polyolefin restrictive coating, first corrosion resistant layer, second corrosion resistant layer, fire-retardant layer, the cooperation of rat repelling layer and armor weaving layer, possess the advantage that protection against rodents function and weatherability are good, current power cable has been solved, in the use, do not have protection against rodents function usually, lead to power cable when using for a long time, receive gnawing of rodent easily, thereby cause cable leakage phenomenon, and because single structure, cable surface's ageing-resistant and corrosion resisting property are relatively poor, power cable life's problem has been reduced.

2. The utility model discloses a set up first corrosion resistant layer and second corrosion resistant layer, power cable's corrosion-resistant and ageing-resistant performance has been increased, power cable's life has been promoted, through setting up fire-retardant layer, power cable's flame retardant efficiency has been increased, through setting up rat repelling layer and armor weaving layer, power cable surface's intensity has been increased, can give off rat repelling smell simultaneously, effectively prevent because rodent gnaws the phenomenon that causes the electric leakage, through setting up first heat-resistant layer and second heat-resistant layer, power cable's heat resistance has been increased.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the partial structure of the present invention;

fig. 3 is the structural section view of the rat repelling layer of the utility model.

In the figure: 1 basic unit, 2 cable cores, 3 inoxidizing coating, 4 resistant weather layers, 5 protection against rodents layers, 6 low smoke and zero halogen flame retardant polyolefin restrictive coatings, 7 first corrosion resistant layer, 8 second corrosion resistant layer, 9 fire-retardant layers, 10 rat repelling layers, 11 armor weaving layers, 12 first heat-resistant layers, 13 second heat-resistant layers.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

Referring to fig. 1-3, a B1-class flame-retardant low-smoke halogen-free flame-retardant power cable includes a base layer 1, a cable core 2 fixedly connected to an inner wall of the base layer 1, a protective layer 3 fixedly connected to an outer surface of the base layer 1, the protective layer 3 including a first heat-resistant layer 12, a second heat-resistant layer 13 fixedly connected to an outer surface of the first heat-resistant layer 12, the heat-resistant performance of the power cable is enhanced by the arrangement of the first heat-resistant layer 12 and the second heat-resistant layer 13, the first heat-resistant layer 12 is made of polyvinylidene fluoride, the second heat-resistant layer 13 is made of polytetrafluoroethylene, the protective layer 3 is fixedly connected to a weather-resistant layer 4, the weather-resistant layer 4 is fixedly connected to an outer surface of the weather-resistant layer 5, the rat-proof layer 5 is fixedly connected to an outer surface of a low-smoke halogen-free flame-retardant polyolefin sheath layer 6, the weather-, through setting up first corrosion resistant layer 7 and second corrosion resistant layer 8, power cable's corrosion resistance and ageing resistance have been increased, power cable's life has been promoted, first corrosion resistant layer 7's material is EP rubbers, second corrosion resistant layer 8's material is butyl rubber, protection against rodents layer 5 includes fire-retardant layer 9, through setting up fire-retardant layer 9, power cable's flame retardant efficiency has been increased, fire-retardant layer 9's surface fixedly connected with rat repelling layer 10, rat repelling layer 10's surface fixedly connected with armor weaving layer 11, through setting up rat repelling layer 10 and armor weaving layer 11, power cable surface's intensity has been increased, simultaneously can distribute rat repelling smell, effectively prevent to gnaw the phenomenon that causes the electric leakage because rodent gnaws, fire-retardant layer 9's material is the mica tape, rat repelling layer 10's material is capsaicin, armor weaving layer 11's material is the galvanized steel wire, through basic unit 1, cable core 2, Inoxidizing coating 3, resistant layer 4, protection against rodents layer 5, low smoke and zero halogen fire-retardant polyolefin restrictive coating 6, first corrosion resistant layer 7, second corrosion resistant layer 8, fire-retardant layer 9, the cooperation of rat repelling layer 10 and armor weaving layer 11, possess the advantage that protection against rodents function and weatherability are good, current power cable has been solved, in the use, do not have protection against rodents function usually, lead to power cable when using for a long time, receive gnawing of rodent easily, thereby cause cable leakage phenomenon, and because single structure, the ageing-resistant and corrosion resisting property on cable surface is relatively poor, power cable life's problem has been reduced.

During the use, through setting up first corrosion resistant layer 7 and second corrosion resistant layer 8, power cable's corrosion-resistant and ageing-resistant performance has been increased, power cable's life has been promoted, through setting up fire-retardant layer 9, power cable's flame retardant efficiency has been increased, through setting up rat repelling layer 10 and armor weaving layer 11, power cable surface's intensity has been increased, can give off the rat repelling smell simultaneously, effectively prevent to gnaw the phenomenon that causes the electric leakage because rodent gnaws, through setting up first heat-resistant layer 12 and second heat-resistant layer 13, power cable's heat resistance has been increased.

In summary, the following steps: this fire-retardant low smoke and zero halogen fire-resistant power cable of B1 class, through basic unit 1, cable core 2, inoxidizing coating 3, resistant layer 4 of waiting, protection against rodents layer 5, low smoke and zero halogen fire-retardant polyolefin restrictive coating 6, first corrosion resistant layer 7, second corrosion resistant layer 8, fire-retardant layer 9, layer 10 and the cooperation of armor weaving layer 11 of repelling rats, current power cable has been solved, in the use, do not have protection against rodents function usually, lead to power cable when using for a long time, receive gnawing of rodent easily, thereby cause the cable electric leakage phenomenon, and because single structure, the ageing-resistant and corrosion resisting property on cable surface is relatively poor, power cable life's problem has been reduced.

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

Fire-retardant low smoke and zero halogen fire-resistant power cable of B1 class, including basic unit (1), its characterized in that: the inner wall fixedly connected with cable core (2) of basic unit (1), the surface fixedly connected with inoxidizing coating (3) of basic unit (1), the fixed surface of inoxidizing coating (3) is connected with resistant layer (4) of waiting, the fixed surface of resistant layer (4) is connected with protection against rodents layer (5), the fixed surface of protection against rodents layer (5) is connected with low smoke and zero halogen fire-retardant polyolefin restrictive coating (6), resistant layer (4) are including first corrosion resistant layer (7), the fixed surface of first corrosion resistant layer (7) is connected with second corrosion resistant layer (8), protection against rodents layer (5) is including fire-retardant layer (9), the fixed surface of fire-retardant layer (9) is connected with rat repelling layer (10), the fixed surface of rat repelling layer (10) is connected with armor weaving layer (11).
2. The fire-retardant low smoke zero halogen power cable of B1 class according to claim 1, characterized in that: the protective layer (3) comprises a first heat-resistant layer (12), and a second heat-resistant layer (13) is fixedly connected to the outer surface of the first heat-resistant layer (12).
3. The fire-retardant low smoke zero halogen power cable of B1 class according to claim 2, characterized in that: the first heat-resistant layer (12) is made of polyvinylidene fluoride, and the second heat-resistant layer (13) is made of polytetrafluoroethylene.
4. The fire-retardant low smoke zero halogen power cable of B1 class according to claim 1, characterized in that: the first corrosion-resistant layer (7) is made of ethylene propylene rubber, and the second corrosion-resistant layer (8) is made of butyl rubber.
5. The fire-retardant low smoke zero halogen power cable of B1 class according to claim 1, characterized in that: the material of fire-retardant layer (9) is the mica tape, the material of rat repelling layer (10) is capsaicin, the material of armor weaving layer (11) is galvanized steel wire.