CN210777962U

CN210777962U - Overhead cable

Info

Publication number: CN210777962U
Application number: CN201922213475.XU
Authority: CN
Inventors: 王先锋
Original assignee: Xi'an Hualian Electrical Cable Co ltd
Current assignee: Xi'an Hualian Electrical Cable Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-06-16
Anticipated expiration: 2029-12-11

Abstract

The embodiment of the application discloses aerial cable, including conductive core, conductive core's fixed surface has cup jointed insulating silica gel, insulating silica gel's fixed surface is connected with the flame retardant coating, the fixed surface of flame retardant coating is connected with insulating layer, insulating layer's fixed surface has cup jointed the support guard net, the fixed surface of support guard net is connected with the protective layer. This aerial [ insulated ] cable, use through the cooperation that supports guard net and supporting wire, when this aerial [ insulated ] cable installs, the pulling force effect that utilizes support guard net and supporting wire supports the cable, and then improved this aerial [ insulated ] cable's fastness, avoid the cracked problem of cable to appear, utilize the flame retardant coating to form for magnesium oxide makes as insulating material simultaneously, neither burn because of the particularity of its material, also prolong to burn, and then make this aerial [ insulated ] cable possess good fire behavior, the stability of this aerial [ insulated ] cable has been improved.

Description

Overhead cable

Technical Field

The application relates to the technical field of overhead cables, in particular to an overhead cable.

Background

The overhead cable (called overhead insulated cable) is an overhead conductor with insulating layer and protective sheath, and is a special cable made up by adopting the similar production process of cross-linked cable, and is a new power transmission mode between overhead conductor and underground cable. Aerial [ insulated ] cable all is single core, can divide into duralumin line structure according to its structural difference, duralumin line structure, aluminum alloy line structure, steel core or aluminum alloy core bearing structure and self-supporting three-core line close structure (the sinle silk can be duralumin or duralumin line) etc. because aerial [ insulated ] cable uses in the high altitude, the external force intensity who receives is great, consequently the cracked condition of aerial [ insulated ] cable can often appear and take place, traditional aerial [ insulated ] cable is when receiving open fire damage simultaneously, the cracked condition of delaying a fire can appear in the cable, fire behavior is relatively poor, and traditional aerial [ insulated ] cable is difficult for discerning basic information, cause the trouble to inspection work, therefore we have proposed an aerial [ insulated ] cable.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application proposes an overhead cable to improve the above problems.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an overhead cable, includes conductive core, conductive core's fixed surface has cup jointed insulating silica gel, insulating silica gel's fixed surface is connected with the flame retardant coating, the fixed surface of flame retardant coating is connected with insulating layer, insulating layer's fixed surface has cup jointed the support guard net, the fixed surface of support guard net is connected with the protective layer, the fixed surface of protective layer has cup jointed outside protecting film, the fixed surface of protective layer is connected with the instruction label, the upper surface of instruction label parallels with the surface of protective layer.

Optionally, the indicator tags are linearly arranged on the surface of the protective layer, and the distance between two adjacent indicator tags is five hundred meters.

Optionally, the protective layer is made of a mixture of weather-resistant polyethylene, polyethylene and cross-linked polyethylene.

Optionally, what the electrically conductive sinle silk adopted is TY type round copper line.

Optionally, the material of the fire-proof layer is a magnesium oxide insulating material.

Optionally, the supporting protection net is of a steel wire net structure, and a supporting wire is fixedly sleeved inside the insulating silica gel.

The application provides a pair of aerial cable possesses following beneficial effect:

1. this aerial [ insulated ] cable, use through the cooperation that supports guard net and supporting wire, when this aerial [ insulated ] cable installs, the pulling force effect that utilizes support guard net and supporting wire supports the cable, and then improved this aerial [ insulated ] cable's fastness, avoid the cracked problem of cable to appear, utilize the flame retardant coating to form for magnesium oxide makes as insulating material simultaneously, neither burn because of the particularity of its material, also prolong to burn, and then make this aerial [ insulated ] cable possess good fire behavior, the stability of this aerial [ insulated ] cable has been improved.

2. This aerial [ insulated ] cable through increase the instruction label on the surface of protective layer, utilizes the instruction label to record basic information such as model specification and voltage of cable, and the staff of being convenient for discerns, can roughly detect the length of cable through the quantity of instruction label simultaneously, has improved this aerial [ insulated ] cable's practicality.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a schematic view of an aerial cable according to an embodiment of the present application;

fig. 2 shows a schematic diagram of an overhead cable side view according to an embodiment of the present application.

In the figure: 1. a conductive wire core; 2. a protective layer; 3. supporting the wire; 4. an insulating and heat-insulating layer; 5. a fire barrier layer; 6. insulating silica gel; 7. supporting the protection net; 8. an external protective film; 9. the label is indicated.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 2, the present invention provides a technical solution: an aerial cable comprises a conductive wire core 1, wherein the conductive wire core 1 is a TY-type round copper wire, the surface of the conductive wire core 1 is fixedly sleeved with an insulating silica gel 6, the surface of the insulating silica gel 6 is fixedly connected with a fireproof layer 5, the fireproof layer 5 is made of a magnesium oxide insulating material, when the aerial cable is threatened by a fire source, the fireproof layer 5 is used for isolating fire, the problem of fire fracture of the aerial cable is further avoided, the stability of the aerial cable is improved, the surface of the fireproof layer 5 is fixedly connected with an insulating and heat-insulating layer 4, the surface of the insulating and heat-insulating layer 4 is fixedly sleeved with a supporting and protecting net 7, the supporting and protecting net 7 is of a steel wire mesh structure, a supporting wire 3 is fixedly sleeved inside the insulating silica gel 6, and the supporting and protecting net 7 is matched with the supporting wire 3, when the overhead cable works, the toughness of the overhead cable is improved by utilizing the supporting and protecting net 7 and the supporting wires 3, the problem that the overhead cable is fractured and deformed by external force is avoided, the service life of the overhead cable is prolonged, the surface of the supporting and protecting net 7 is fixedly connected with the protecting layer 2, the protecting layer 2 is made of a mixed material of weather-resistant polyethylene, polyethylene and crosslinked polyethylene, the weather resistance of the overhead cable is improved by utilizing the material of the protecting layer 2 as the mixed material of the weather-resistant polyethylene, the polyethylene and the crosslinked polyethylene, the performance of the overhead cable also conforms to the standard vertebra of the cable, the surface of the protecting layer 2 is fixedly sleeved with the external protecting film 8, the surface of the protecting layer 2 is fixedly connected with the indicating labels 9, the indicating labels 9 are linearly arranged on the surface of the protecting layer 2, the distance between two adjacent indicating labels 9 is five hundred meters, the model specification, the voltage and other basic information of the cable are recorded by utilizing the indicating labels, the staff of being convenient for discerns, simultaneously because the distance between two adjacent instruction label 9 is five hundred meters, can roughly detect the length of cable through the quantity of instruction label 9, has improved this aerial [ insulated ] cable's practicality, and the upper surface of instruction label 9 is parallel with the surface of protective layer 2.

In summary, when the aerial cable provided by the application is used, firstly, a proper aerial cable is selected according to cable information engraved on the indication labels 9, and as the distance between the two indication labels 9 is 500 meters, the aerial cable is paid off according to the number of the indication labels 9 and then is installed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. An overhead cable comprising a conductive core (1), characterized in that: insulating silica gel (6) have been cup jointed to the fixed surface of conductive core (1), the fixed surface of insulating silica gel (6) is connected with flame retardant coating (5), the fixed surface of flame retardant coating (5) is connected with insulating layer (4), the fixed surface of insulating layer (4) has been cup jointed and has been supported protecting net (7), the fixed surface that supports protecting net (7) is connected with protective layer (2), the fixed surface of protective layer (2) has been cup jointed outside protecting film (8), the fixed surface of protective layer (2) is connected with indicator label (9), the upper surface of indicator label (9) parallels with the surface of protective layer (2).

2. An overhead cable as claimed in claim 1, wherein: the indicating labels (9) are linearly arranged on the surface of the protective layer (2), and the distance between every two adjacent indicating labels (9) is five hundred meters.

3. An overhead cable as claimed in claim 1, wherein: the protective layer (2) is made of a mixture of weather-resistant polyethylene, polyethylene and cross-linked polyethylene.

4. An overhead cable as claimed in claim 1, wherein: the conductive wire core (1) adopts a TY-type round copper wire.

5. An overhead cable as claimed in claim 1, wherein: the fireproof layer (5) is made of a magnesium oxide insulating material.

6. An overhead cable as claimed in claim 1, wherein: the supporting protection net (7) is of a steel wire mesh structure, and the supporting wires (3) are fixedly sleeved inside the insulating silica gel (6).