CN214336427U

CN214336427U - Communication and electric power integrated overhead parallel cluster insulated conductor

Info

Publication number: CN214336427U
Application number: CN202120218071.4U
Authority: CN
Inventors: 蒋超; 李斌; 祝军
Original assignee: Jiangsu Shangshang Cable Group Co Ltd
Current assignee: Jiangsu Shangshang Cable Group Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-01
Anticipated expiration: 2031-01-27

Abstract

A communication and power integrated overhead parallel cluster insulated conductor comprises a power cable and a communication cable; the power cable and the communication cable are connected in parallel with each other; the power cable comprises a conductor and a protective layer wrapped outside the conductor; the communication cable comprises a cable core and a protective layer wrapped outside the cable core; the power cable is connected with the communication cable through a connecting rib; the connecting rib is strip-shaped, and two edges of the connecting rib are respectively connected to the protective layer of the power cable and the protective layer of the communication cable; the axial direction of the power cable, the axial direction of the communication cable and the length direction of the connecting rib are parallel; the protective layer of the power cable, the protective layer of the communication cable and the connecting rib are made of the same material. The bunched insulated wire has better insulating property, is low in overall manufacturing cost, can be laid along a wall in a narrow passage area, does not need an electric pole, is relatively simple in construction, occupies a small space, can simultaneously transmit the effects of a telecommunication network, a broadcasting network, the Internet and the like, reduces the laying of repeated lines and reduces the construction cost.

Description

Communication and electric power integrated overhead parallel cluster insulated conductor

Technical Field

This technical scheme belongs to cable technical field, specifically is a communication and parallel insulating wire tied in a bundle of overhead of electric power integral type.

Background

With the progress of times and the development of social economy, rural power grid transformation engineering in China is deepened gradually, new technologies, new materials and new processes are widely applied to 0.4kV low-voltage power distribution networks, and compared with traditional overhead conductors and insulated wires, the overhead parallel bundling insulated conductors have a series of advantages, such as low maintenance cost, low overall manufacturing cost and the like, and therefore are widely applied. Communication lines need to be laid repeatedly in rural areas, so that the communication lines are often laid for many times, and the construction cost is high.

SUMMERY OF THE UTILITY MODEL

In order to reduce the repeated construction cost, an overhead parallel bundled insulated conductor with power and communication functions is proposed.

A communication and power integrated overhead parallel bundling insulated conductor structurally comprises a power cable and a communication cable; the power cable and the communication cable are connected in parallel with each other; the power cable comprises a conductor and a protective layer wrapped outside the conductor; the communication cable comprises a cable core and a protective layer outside the cable core;

the power cable is connected with the communication cable through a connecting rib; the connecting rib is strip-shaped, and two edges of the connecting rib are respectively connected to the protective layer of the power cable and the protective layer of the communication cable; the axial direction of the power cable, the axial direction of the communication cable and the length direction of the connecting rib are parallel;

the protective layer of the power cable, the protective layer of the communication cable and the connecting rib are made of the same material. The structure is suitable for the extrusion production of the same extruder and the die.

The finished cable is square, and the outer diameter ranges of the length and the width are controlled to be 20-40 mm.

According to the use requirement, the number of the power cables is 1 or more;

A. 1 power cable and communication cable are parallel to each other and connected through connecting ribs;

B. the power cables and the communication cables are parallel to each other, and the protective layers of the power cables are connected in pairs sequentially through the connecting ribs; only the protective layer of the last power cable is connected with the protective layer of the communication cable through a connecting rib; under the influence of no external force, all the power cables and the communication cables are symmetrical around the same axis. Under the structure, the angle formed by the two connecting ribs on the same power cable (namely the inner angle of the regular polygon) is related to the total quantity of the power cable and the communication cable. This overhead cable tied in a bundle naturally encloses into type square shape under laying state, and the occupation space is less.

Furthermore, the conductor is formed by stranding a plurality of annealed soft copper wires, the stranding pitch is 25-30 times, and the outer diameter range of the copper wires is 1.3-1.8 mm. The protection layer of the power cable is an insulation layer, and the insulation layer is formed by wrapping an insulation material outside a conductor; the nominal thickness of the insulating layer is 1.4mm, the average thickness of the insulating layer is not less than the nominal value, and the thinnest thickness is not less than 90-0.1 mm of the nominal value. The insulating material of the insulating layer may be a cross-linked polyethylene insulating material.

Further, the core of the communication cable is a communication optical fiber. The communication optical fiber can be 24-core single-mode optical fiber, and the outer diameter of the communication optical fiber corresponds to that of the conductor. Specifically, the 24-core single-mode fiber is type GYXTW.

Furthermore, the upper side of the connecting rib is also provided with a mark line.

When the concrete engineering is realized:

insulating bead size (approximate) (mm): 0.4 multiplied by 4.7 (thickness multiplied by width), the connecting rib is made of the crosslinked polyethylene insulating material which is the same as the insulating material, and the crosslinked polyethylene insulating material can be extruded together with the protective layer of the power cable and the communication cable during production, so that the effect of completing the production at one time is achieved.

The structural size of the insulating connecting rib can meet the strength requirement during overhead laying, so that all parts are effectively connected together. The tearing resistance of the connecting ribs is not more than 160N, the connecting ribs can be easily separated from each other during construction and laying, insulation and conductors are not damaged when the connecting ribs are torn and separated for use, and the requirement that the connecting ribs can be easily restored to be square during laying is met.

The outer diameter range of the power cable and the outer diameter range of the communication cable are both 8 mm-15 mm, and the adjacent distance of each part is based on the size of the connecting rib.

The finished cable is square, and the shape range of the length and the width is controlled to be 20-40 mm.

To sum up the utility model discloses an effect mainly has: compared with bare conductors, the overhead parallel bunched conductors have better insulating property, the overall cost is low, the conductors can be laid along walls in narrow areas of channels, electric poles are not needed, construction is relatively simple, and occupied space is small. Due to the existence of the connecting ribs, the space between adjacent conductors is enlarged, and natural insulation is formed by the space between the conductors.

The cluster insulated wire has the advantages that the cluster insulated wire can transmit telecommunication networks, broadcasting networks, the Internet and the like while meeting the requirement of transmitting electric power through the communication optical fiber of the wire, so that repeated circuit laying is reduced, and the construction cost is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an overhead parallel bundled insulated conductor of this example;

wherein: 1. a conductor; 2. an insulating layer; 3. connecting ribs; 4. a communication optical fiber; 5. a shield layer of a communication cable.

Detailed Description

The technical scheme is further explained by the attached drawings and the specific embodiments:

referring to fig. 1, the communication and power integrated overhead parallel bundled insulated conductor of the present embodiment includes a conductor 1, a communication optical fiber 4, an insulating layer 2, and a connecting rib 3.

The conductor 1 is formed by stranding a plurality of annealed copper wires; the twisting pitch is controlled to be 25-30, the outer diameter range of the copper wire is 1.3-1.8 mm, and the strength and softness of the cable can be effectively guaranteed.

The insulating layer 2 made of the crosslinked polyethylene material is made of a copper conductor wrapped by the crosslinked polyethylene insulating material. The nominal thickness of the insulating layer is 1.4mm, the average thickness of the insulating layer is not less than the nominal value, the thinnest thickness is not less than 90-0.1 mm of the nominal value, the insulating layer is tightly extruded on the copper conductor, the surface of the insulating layer is smooth and uniform in color, and the defects of mechanical damage, air bubbles, poor plasticization and the like are overcome.

The communication optical fiber adopts 24-core single-mode optical fiber, the used diameter is equivalent to that of a copper conductor, and a cross-linked polyethylene insulating layer is conveniently extruded together with the copper conductor.

The connecting ribs and the crosslinked polyethylene insulating layer are made of the same material. The connecting ribs should have a complete structure without being damaged, the crosslinked polyethylene insulating layers of the adjacent power cables are tightly connected, the surface should be smooth, the color and luster should be uniform, and the defects of mechanical damage, air bubbles, poor plasticization and the like are avoided.

The wire carries a communication optical fiber, and the communication optical fiber of the embodiment adopts a 24-core single-mode optical fiber, and the specification of the communication optical fiber can be adopted according to the specification of a cable, and usually adopts the specification of 9/125. The model of the 24-core single-mode fiber is GYXTW suitable for outdoor laying, and can be laid along with overhead parallel bundled insulated wires.

The cross-linked polyethylene insulating layer is formed by extruding cross-linked polyethylene insulating material outside the conductor;

the mark line of the connecting rib can be added to enable the insulated wire core to be easily identified, so that the power line is prevented from being damaged during wiring in communication construction;

the outer diameter range of the cable is controlled to be 20-40 mm;

in this example, there are 3 power cables, which meet the requirement of three-core wires of the utility power. And communication signals can be transmitted by one communication optical fiber.

The overhead parallel cluster insulated conductor is produced by extruding crosslinked polyethylene insulating materials outside a copper conductor and extruding crosslinked polyethylene insulating materials outside a communication optical fiber. The extrusion can be completed on the same extruder by using corresponding dies.

This cable: the addition of the connecting rib mark line can enable the insulated wire core to be easily identified, and the damage to a power line during the wiring of communication construction is avoided; the connecting ribs are adopted for connection outside the insulator, so that the circuit is simple and tidy, and the phenomenon that the wires touch one group at random in the past is avoided. The cross-linked polyethylene insulating plastic is adopted to manufacture the wire insulating layer, so that the voltage quality is improved, the line loss is reduced, and the cutting is not needed in the area with more trees; the communication optical fiber is added, so that the laying of the communication line can be completed simultaneously when the power line is laid, and the cost of repeated laying is reduced.

The detection results of the communication and power integrated overhead parallel cluster insulated conductor are as follows, and the test results are all qualified:

the above is the embodiment of the utility model, so all according to the utility model discloses the application scope structure, characteristics and principle do equivalent change or decorate, all include in the utility model discloses the patent application scope.

Claims

1. A communication and electric power integrated overhead parallel cluster insulated conductor structurally comprises an electric power cable and is characterized by also comprising a communication cable; the power cable and the communication cable are connected in parallel with each other;

the power cable comprises a conductor and a protective layer wrapped outside the conductor;

the communication cable comprises a cable core and a protective layer wrapped outside the cable core;

the protective layer of the power cable, the protective layer of the communication cable and the connecting rib are made of the same material;

the number of the power cables is 1 or more;

1 power cable and communication cable are parallel to each other and connected through connecting ribs;

the power cables and the communication cables are parallel to each other, and the protective layers of the power cables are connected in pairs sequentially through the connecting ribs; only the protective layer of the last power cable is connected with the protective layer of the communication cable through a connecting rib; under the influence of no external force, all the power cables and the communication cables are symmetrical around the same axis;

the protection layer of the power cable is an insulation layer, and the insulation layer is formed by wrapping an insulation material outside a conductor; the nominal thickness of the insulating layer is 1.4mm, the average thickness of the insulating layer is not less than the nominal value, and the thinnest thickness is not less than 90-0.1 mm of the nominal value;

the insulating material of the insulating layer is a cross-linked polyethylene insulating material;

the connecting rib size is: the thickness was 0.4mm and the width 4.7 mm.

2. The communication and power integrated overhead parallel bundling insulated conductor according to claim 1, wherein the conductor is formed by stranding a plurality of annealed soft copper wires, the stranding pitch is 25-30 times, and the outer diameter range of the copper wires is 1.3-1.8 mm.

3. The integrated communication and power overhead parallel bundled insulated conductor of claim 1, wherein the core of the communication cable is a communication optical fiber; the communication fiber is a 24-core single mode fiber; the outer diameter of the communication fiber corresponds to the outer diameter of the conductor.

4. The integrated communication and power overhead parallel bundling insulated wire of claim 1, wherein the connecting rib has a sign line on its upper side.