CN215006016U

CN215006016U - Large-core-number central tube type OPGW optical cable

Info

Publication number: CN215006016U
Application number: CN202121404236.3U
Authority: CN
Inventors: 丰茂磊; 朱兴; 杨志文; 濮佳辉
Original assignee: Jiangsu Hengtong Smart Grids Co Ltd
Current assignee: Jiangsu Hengtong Smart Grids Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-03
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to a large core number central tube type OPGW optical cable, which comprises a stainless steel optical unit positioned in the center; the optical unit comprises a plurality of optical fibers; injecting fiber paste into the optical unit; a plurality of aluminum-clad steel wires are arranged along the circumferential direction of the light unit; and anticorrosive cable paste is injected between the optical unit and the aluminum-clad steel wire. The utility model discloses light in weight, intensity are high, anti side pressure performance is good, and optic fibre bend radius is big, construction convenience.

Description

Large-core-number central tube type OPGW optical cable

Technical Field

The utility model belongs to the technical field of the compound overhead ground wire of optic fibre technique and specifically relates to indicate a central tubular OPGW optical cable of big core number.

Background

The optical fiber communication technology has the advantages of high transmission speed, low loss, strong anti-electromagnetic interference capability, high safety and the like, and becomes a support technology of a power grid information communication backbone network. As carriers of optical fiber communication technology, special power optical cables such as optical fiber composite overhead ground wires (OPGW), all-dielectric self-supporting optical cables (ADSS), and the like are widely used.

Based on the requirements of high-capacity, high-speed and high-bandwidth communication of the national power grid company on the power internet of things, the capacity of a power optical fiber communication network needs to be enlarged urgently, and the communication needs to a large-core-number OPGW more and more urgently.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model discloses a central tubular OPGW optical cable of big core number.

The utility model discloses the technical scheme who adopts as follows:

a large core number central tube type OPGW optical cable comprises a stainless steel optical unit positioned in the center; the optical unit comprises a plurality of optical fibers; injecting fiber paste into the optical unit; a plurality of aluminum-clad steel wires are arranged along the circumferential direction of the light unit; and anti-corrosion cable paste is injected between the optical unit and the aluminum-clad steel wire.

The method is further technically characterized in that: a plurality of the optical fibers are stranded.

The method is further technically characterized in that: the optical unit comprises 128 stranded optical fibers and the optical fibers are mini optical fibers.

The method is further technically characterized in that: the diameter of the light unit is 5.2 mm.

The method is further technically characterized in that: the light unit is a sleeve, and the outer wall of the sleeve is attached to the aluminum-clad steel wire.

The method is further technically characterized in that: eight aluminum-clad steel wires are arranged in the circumferential direction of the light unit.

The method is further technically characterized in that: and the outer walls of the two adjacent aluminum-clad steel wires are mutually attached.

The method is further technically characterized in that: the aluminum-clad steel wire comprises a plurality of outer layer monofilaments which are mutually twisted.

The method is further technically characterized in that: the length of the optical unit is L, and the residual length of the optical unit is 4-5L.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model discloses satisfy area overhead communication demands such as global range internal capacity, many bandwidths.

2. The utility model discloses have higher anti side pressure and the ability of shocking resistance, the stainless steel electric conductivity is low, intensity is high, and corrosion resisting property is excellent, and optic fibre can receive better protection.

3. The utility model discloses need not additionally to increase costs such as equipment, manual work, utilize current production line, adopt layer-stranding structure to strand light unit and aluminium package steel monofilament, suitably increase aluminium package steel monofilament intensity and effectively compensate light unit part load needs, do not change the stranding and synthesize the breaking force.

Drawings

In order to make the content of the present invention more clearly understood, the present invention will be described in further detail with reference to the following embodiments of the present invention, in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the present invention.

The specification reference numbers indicate: 1. a light unit; 2. anticorrosive cable paste; 3. and (4) aluminum-clad steel wires.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Therefore, the directional terminology used is for the purpose of description and is not intended to be limiting, and moreover, like reference numerals will be used to refer to like elements throughout.

Fig. 1 is a schematic diagram of the present invention. As shown in fig. 1, a large core number central tube type OPGW optical cable includes a stainless steel optical unit 1 at the center. The optical unit 1 includes a plurality of optical fibers. The optical unit 1 is filled with fiber paste, the fiber paste is optical fiber filling paste, and the fiber paste has the functions of water resistance and hydrogen evolution prevention and can protect optical fibers. In this embodiment, the diameter of the light unit 1 is 5.2 mm.

The optical unit 1 includes a plurality of stranded optical fibers. In this embodiment, the optical unit 1 includes 128 stranded optical fibers, and the optical fibers are mini optical fibers of miniG 652D. The 128 stranded optical fibers are suitable for high-capacity, multi-bandwidth power transmission overhead communication lines. The attenuation of the mini optical fiber with the model number of miniG652D is less than or equal to 0.210dB/km in a 1550nm window, and the additional attenuation of the mini optical fiber with the model number of miniG652D is less than or equal to 0.01dB/km at the wavelengths of 1310nm and 1550 nm.

The length of the light unit 1 is L, and the remaining length of the light unit 1 is 4-5L. The term "excess fiber length" is used in the word "longer than or equal to the length of a reference object" as compared with the length of the reference object. In practical application, the excess fiber length is defined as a relative value expressed by percentage, which is the difference between the fiber non-longitudinal-strain physical length calculated by the shortest path and the physical length of a reference object, in consideration of the coverage, uniformity and completeness of the excess fiber length concept. The residual length of the optical unit 1 is 4-5L per mill, and the residual length after the optical fibers are twisted is ensured to be more than 5L per mill.

A plurality of aluminum-clad steel wires 3 are provided along the circumferential direction of the light unit 1. And an anti-corrosion cable paste 2 is injected between the optical unit 1 and the aluminum-clad steel wire 3, and the anti-corrosion cable paste 2 is anti-corrosion factice. In this embodiment, eight aluminum-clad steel wires 3 are provided along the circumferential direction of the light unit 1. The outer walls of two adjacent aluminum-clad steel wires 3 are mutually attached. The aluminum-clad steel wire 3 includes a plurality of outer layer filaments twisted with each other.

The manufacturing method of the utility model is as follows:

the utility model discloses select once the stranding, outer pitch is selected to 146mm, guarantees that the finished product neither loosens nor explodes strand, snakelike, guarantees simultaneously that the optical fiber 1550 window attenuation after the transposition is less than or equal to 0.210dB/km, and 1310 window attenuation is less than or equal to 0.35dB/km, and optical fiber does not have the curve harmfully, unusual such as step.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, 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.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a central tube OPGW optical cable of big core count which characterized in that: comprising a centrally located stainless steel light unit (1); the optical unit (1) comprises a plurality of optical fibers; fiber paste is injected into the optical unit (1); a plurality of aluminum-clad steel wires (3) are arranged along the circumferential direction of the light unit (1); and an anti-corrosion cable paste (2) is injected between the optical unit (1) and the aluminum-clad steel wire (3).

2. The large core count central tube OPGW optical cable of claim 1, wherein: a plurality of the optical fibers are stranded.

3. The large core count central tube OPGW optical cable of claim 1, wherein: the optical unit (1) comprises 128 stranded optical fibers and the optical fibers are mini optical fibers.

4. The large core count central tube OPGW optical cable of claim 1, wherein: the diameter of the light unit (1) is 5.2 mm.

5. The large core count central tube OPGW optical cable of claim 1, wherein: the light unit (1) is a sleeve, and the outer wall of the sleeve is attached to the aluminum-clad steel wire (3).

6. The large core count central tube OPGW optical cable of claim 1, wherein: eight aluminum-clad steel wires (3) are arranged in the circumferential direction of the light unit (1).

7. The large core count central tube type OPGW optical cable of claim 6, wherein: the outer walls of the two adjacent aluminum-clad steel wires (3) are mutually attached.

8. The large core count central tube type OPGW optical cable of claim 6, wherein: the aluminum-clad steel wire (3) comprises a plurality of outer layer monofilaments which are mutually twisted.

9. The large core count central tube OPGW optical cable of claim 1, wherein: the length of the optical unit (1) is L, and the residual length of the optical unit (1) is 4-5L.