CN220381341U

CN220381341U - High-performance water-blocking 48-core ADSS optical cable applicable to extreme weather conditions

Info

Publication number: CN220381341U
Application number: CN202322223369.6U
Authority: CN
Inventors: 顾俊达; 费刚; 蔡旻皓; 袁媛; 戴和; 於静芳
Original assignee: Suzhou Furukawa Power Optic Cable Co Ltd
Current assignee: Suzhou Furukawa Power Optic Cable Co Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-01-23
Anticipated expiration: 2033-08-17

Abstract

The utility model discloses a high-performance water-blocking 48-core ADSS optical cable applicable to extreme weather conditions, which comprises a nonmetal reinforcing core, a plurality of optical units and at least one filling rope which are stranded outside the nonmetal reinforcing core, and water-blocking yarns arranged between the nonmetal reinforcing core and the optical units, wherein the outer parts of the optical units and the at least one filling rope are coated with water-blocking belts, the outer parts of the water-blocking belts are sequentially coated with inner jackets, at least one layer of aramid yarns and outer jackets, and 48-core optical fibers are filled inside the optical units. The utility model realizes that the optical cable is provided with the outer sheath and the inner sheath, and the aramid yarn is arranged between the inner sheath and the outer sheath, so that the mechanical property, the electrical property and the lightning stroke resistance of the optical cable are enhanced, and the waterproof property of the cable core is improved.

Description

High-performance water-blocking 48-core ADSS optical cable applicable to extreme weather conditions

Technical Field

The utility model belongs to the technical field of optical cables, and particularly relates to a high-performance water-blocking 48-core ADSS optical cable applicable to extreme climatic conditions.

Background

All-dielectric self-supporting fiber optic cable (ADSS) has the advantages of no metal, tension resistance, self-supporting, high insulation, no inductivity, small diameter, light weight, easy construction, economy and the like. The optical fiber bundle is wound on a central reinforcing member, and the combined optical cable is manufactured through protective measures such as insulation, water resistance, reinforcement, sheath and the like. ADSS optical cable has many characteristics, such as layer-stranding loose tube structural design, offer abundant, accurate excess length of optic fibre; under specific topography and meteorological conditions, the stress-strain characteristics are excellent; the long span design is larger, and the requirements of special long line sections can be met, so that the ADSS optical cable has extreme climate adaptation conditions.

The prior patent number is CN201220558621.8 single-sheath ADSS optical cable, which comprises a unit cable and a sheath layer, wherein the unit cable comprises an optical fiber and a sleeve, the sleeve is coated with the optical fiber, the sheath layer is composed of a built-in reinforcing layer and an outer sheath, the unit cable is arranged in the built-in reinforcing layer, the outer sheath is coated with the built-in reinforcing layer, the unit cable and water blocking yarns are arranged in the water blocking belt, and the built-in reinforcing layer is coated with the water blocking belt. The optical cable has only one outer sheath, and the protective performance of the optical cable needs to be enhanced.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides the high-performance water-blocking 48-core ADSS optical cable applicable to extreme weather conditions, so that the optical cable is provided with an outer sheath and an inner sheath, and aramid yarns are arranged between the inner sheath and the outer sheath, so that the mechanical performance, the electrical performance and the lightning stroke resistance of the optical cable are enhanced, and the waterproof performance of a cable core is improved. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the high-performance water-blocking 48-core ADSS optical cable suitable for extreme weather conditions comprises a nonmetal reinforcing core, a plurality of optical units and at least one filling rope which are stranded outside the nonmetal reinforcing core, and water-blocking yarns arranged between the nonmetal reinforcing core and the optical units, wherein the outer parts of the optical units and the at least one filling rope are coated with water-blocking belts, the outer parts of the water-blocking belts are coated with inner jackets, at least one layer of aramid yarns and outer jackets in sequence, and 48-core optical fibers are filled inside the optical units.

Specifically, the exterior of the nonmetallic reinforcing core is twisted with four light units and a filling rope.

Specifically, the optical unit comprises a PBT loose tube, a plurality of optical fibers filled in the PBT loose tube, and fiber paste filled in the PBT loose tube.

Specifically, each PBT loose tube is filled with 12-core optical fibers.

Specifically, the outer sheath is made of polyethylene material.

Compared with the prior art, the high-performance water-blocking 48-core ADSS optical cable applicable to the extreme climate conditions has the following main beneficial effects:

the outside of cable core structure sets up water blocking strip, inner sheath, aramid yarn, oversheath, suitably increases the thickness of sheath and aramid yarn's thickness, helps improving mechanical properties, electrical properties and the lightning stroke resistance performance of whole optical cable for the optical cable still can safe and reliable use under extreme climatic conditions.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

the figures represent the numbers:

1 nonmetal reinforcing core, 2 light units, 21PBT loose tubes, 22 optical fibers, 3 filling ropes, 4 water-blocking yarns, 5 water-blocking belts, 6 inner jackets, 7 aramid yarns and 8 outer jackets.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, but is apparent to those skilled in the art in view of the present utility model.

Examples:

referring to fig. 1, the present embodiment is a high-performance water-blocking 48-core ADSS optical cable suitable for extreme weather conditions, comprising a non-metal reinforcing core 1, a plurality of light units 2 and at least one filling rope 3 stranded outside the non-metal reinforcing core 1, and water-blocking yarns 4 disposed between the non-metal reinforcing core 1 and the plurality of light units 2; the outside cladding of a plurality of light units 2 and at least one filling rope 3 sets up the water blocking tape 5, and the outside cladding of water blocking tape 5 sets up inner sheath 6, at least one deck aramid yarn 7, and oversheath 8 in proper order, and the inside packing of light unit 2 is equipped with 48 core optic fibre.

In this embodiment, the nonmetal reinforcing core 1 is formed by bonding glass fibers, and four optical units 2 and a filling rope 3 are twisted outside the nonmetal reinforcing core 1, wherein the optical units 2 comprise a PBT loose tube 21, a plurality of optical fibers 22 filled in the PBT loose tube 21, and fiber paste filled in the PBT loose tube 21. Each PBT loose tube 21 is filled with 12-core optical fibers 22, 48-core optical fibers are arranged in total optical units 2, and four optical units 2 and one filling rope 3 are tightly twisted and positioned outside the nonmetal reinforced core 1 to form an integral cable core structure.

The outside cladding water blocking tape 5 of cable core structure, water blocking tape 5, inner sheath 6, aramid yarn 7, outer sheath 8 are cladding in proper order and are set up for the inside of cable core structure has better supporting strength, simultaneously, improves waterproof performance, makes the optical cable can satisfy extreme climate condition user demand, improves the security of using.

The outer sheath 8 in this embodiment is made of polyethylene material.

When the embodiment is applied, the whole optical cable has higher optical performance and mechanical performance, and software SAG0 is utilized to verify that the strain of the optical cable is smaller than 0.9% under the maximum working tension, so that the enough surplus length of the optical fiber is ensured, and meanwhile, the optical cable has economical efficiency. Can be safely and reliably used under extreme conditions such as drought, humidity, cold, heat and the like. The method has the advantages of high safety, convenient construction, economy, practicability, wide application range, strong maintainability and the like.

In the embodiment, the water blocking belt 5, the inner sheath 6, the aramid yarn 7 and the outer sheath 8 are arranged outside the cable core structure, the thickness of the sheath and the thickness of the aramid yarn are properly increased, the mechanical property, the electrical property and the lightning stroke resistance of the whole optical cable are improved, and the optical cable can be safely and reliably used under extreme weather conditions.

In the description of the present specification, the term "particular embodiment" or "a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims

1. The utility model provides a 48 core ADSS optical cable that blocks water of extreme weather condition suitable high performance, includes nonmetal enhancement core, twines in a plurality of light units and at least one filling rope of nonmetal enhancement core outside, and set up the yarn that blocks water between nonmetal enhancement core and a plurality of light units, its characterized in that: the outside cladding of a plurality of light units and at least one filling rope sets up the water blocking tape, the outside cladding of water blocking tape sets up inner sheath, at least one deck aramid yarn, and oversheath in proper order, the inside packing of light unit is equipped with 48 core optic fibre.

2. The extreme climate condition compatible high performance water resistant 48-core ADSS cable of claim 1 wherein: four light units and a filling rope are arranged on the outer portion of the nonmetal reinforced core in a twisting mode.

3. The extreme climate condition compatible high performance water resistant 48-core ADSS cable of claim 1 wherein: the light unit comprises a PBT loose tube, a plurality of optical fibers filled in the PBT loose tube and fiber paste filled in the PBT loose tube.

4. The extreme climate condition compatible high performance water resistant 48-core ADSS cable of claim 2 wherein: each PBT loose tube is filled with 12-core optical fibers.

5. The extreme climate condition compatible high performance water resistant 48-core ADSS cable of claim 1 wherein: the outer sheath is made of polyethylene material.