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ADSS (All-Dielectric Self-Supporting) fiber optic cable uses an all-dielectric structure and requires no metal support. It is primarily composed of optical fibers, weather-resistant sheaths, and reinforcing cores. The outer sheath typically uses high-strength weather-resistant materials, such as PE or AT sheaths, offering excellent resistance to corrosion, UV rays, and electromagnetic interference, ensuring long-term use in harsh environments.
ADSS (All-dielectric Self-supporting) optical fibre cable is a type of self-supporting aerial fiber optic cable designed for aerial installation and deployment and is suitable for various outdoor applications. Alteoptic' ADSS cable Using A-grade fiber core, the attenuation and dispersion characteristics are fully optimized, and precise geometric parameters ensure low splicing loss and high splicing efficiency. Our ADSS cables with Small outer diameter, light weight, flame retardant, easy to peel off, and highly flexible tight-fitting dry structure facilitates construction and maintenance, And good toughness and very high tensile modulus, suitable for long-distance pipeline laying, High mechanical strength, improves the tensile strength of optical cables Anti-interference, non-conductive, corrosion-resistant.
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编号 No. |
项目 Items |
单位 Unit |
参数 Specification |
|
|
G.652D |
||||
|
1 |
模场直径 Mode Field Diameter |
1310nm |
μm |
9.2±0.4 |
|
1550nm |
μm |
10.4±0.5 |
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|
2 |
包层直径 Cladding Diameter |
μm |
124.8±0.7 |
|
|
3 |
包层不圆度 Cladding Non-Circularity |
% |
≤0.7 |
|
|
4 |
芯/包层同心度误差 Core-Cladding Concentricity Error |
μm |
≤0.5 |
|
|
5 |
涂覆层直径 Coating Diameter |
μm |
245±5 |
|
|
6 |
涂覆层不圆度 Coating Non-Circularity |
% |
≤6.0 |
|
|
7 |
包层/涂覆层同心度误差 Cladding-Coating Concentricity Error |
μm |
≤12.0 |
|
|
8 |
光缆截止波长 Cable Cutoff Wavelength |
nm |
λcc ≤1260 |
|
|
9 |
衰减系数 Attenuation(max.) |
1310nm |
dB/km |
≤0.36 |
|
1550nm |
dB/km |
≤0.22 |
||
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项目 Items |
指标 Specifications |
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|
光纤芯数 Fiber No. |
24 |
|
|
线缆内部结构 Cable Inner Structure |
1+6 |
|
|
松套管 Loose Tube |
外径 Dimension |
2.0mm ±0.05mm |
|
材料 Material |
PBT |
|
|
套管数量 Tube No. |
4 |
|
|
纤芯数/管 Fibers per Tube |
6 |
|
|
填充绳 Fillers |
外径 Dimension |
2.0mm ±0.05mm |
|
材料 Material |
PVC |
|
|
颜色 Color |
White |
|
|
数量 No. |
2 |
|
|
中心加强件 Central Strengthen Member |
外径 Diameter |
2.0mm |
|
材料 Material |
FRP |
|
|
纺纶 Strengthen Member, |
跨距 Span |
100 Meters |
|
Aramid Yarn |
材料 Material |
Aramid Yarn |
|
外皮 Outer Sheath |
材料 Material |
PE |
|
颜色 Color |
Black |
|
|
线缆外径 OD. |
Cable Outer Diameter |
9.5 ±0.3mm |
|
线缆重量 Weight |
Cable Weight Per KM. |
75 ±10kg/km |
|
项目 Items |
指标 Specifications |
|
|
光纤芯数 Fiber No. |
24 |
|
|
线缆内部结构 Cable Inner Structure |
1+6 |
|
|
松套管 Loose Tube |
外径 Dimension |
2.0mm ±0.05mm |
|
材料 Material |
PBT |
|
|
套管数量 Tube No. |
4 |
|
|
纤芯数/管 Fibers per Tube |
6 |
|
|
填充绳 Fillers |
外径 Dimension |
2.0mm ±0.05mm |
|
材料 Material |
PVC |
|
|
颜色 Color |
White |
|
|
数量 No. |
2 |
|
|
中心加强件 Central Strengthen Member |
外径 Diameter |
2.0mm |
|
材料 Material |
FRP |
|
|
纺纶 Strengthen Member, Aramid Yarn |
跨距 Span |
100 Meters |
|
材料 Material |
Aramid Yarn |
|
ADSS Cable Meaning
All-Dielectric Self-Supporting (ADSS) cables are a type of optical fiber cable uniquely capable of selfsupporting installation between structures, eliminating the need for conductive metal elements. Commonly utilized by electrical utilities, these cables are installed alongside existing overhead transmission lines, often using the same supports as electrical conductors.
ADSS cables offer a cost-effective alternative to OPGW (Optical Ground Wire) and OPAC (Optical Phase Conductor) cables. They are engineered for strength, enabling installations spanning up to 1000 meters between support towers. Their design focuses on being lightweight and having a small diameter to minimize the impact on tower structures from factors like cable weight, wind, and ice.
The cable's design ensures the internal glass optical fibers are supported with minimal strain, maintaining low optical loss over the cable's lifetime. A protective jacket shields the fibers from moisture and safeguards the cable's polymer strength components from solar UV radiation.
Types of the ADSS Cables
ADSS cables, distinct for not using any metal wires, utilize optical fibers that are either housed in loose buffer tubes or arranged in a ribbon-like configuration. To ensure minimal strain on the fibers, the design typically includes excess slack in the fibers compared to the length of the cable's supporting structure.
For installations requiring longer spans, a prevalent design incorporates aramid fiber yarns for strength. These yarns are coated to prevent water absorption. Surrounding this strength layer is a core composed of several buffer tubes, each containing multiple fibers, which in turn encircle a central plastic core.
An external sheath encases the entire structure, offering protection against water ingress and sunlight exposure.
The types of ADSS (All-Dielectric Self-Supporting) cable can primarily be differentiated based on their sheathing or jacketing, with the most common variations being single sheath and double sheath designs. Here's a brief overview of each:
Single Sheath ADSS Cable:
Construction:
This type features a single outer jacket layer. Lightweight: It's typically lighter than double sheath variants.
Applications:
Ideal for environments with lower risk of mechanical damage or where cable weight is a critical factor.
Cost-Efficient:
Generally more cost-effective due to less material usage.
Environmental Resistance:
Offers sufficient protection against UV rays, moisture, and minor abrasions.
Double Sheath ADSS Cable:
Construction:
Equipped with two layers of sheathing, an inner and an outer jacket.
Enhanced Protection:
Provides better mechanical protection, making it suitable for harsher environments.
Durability:
More resistant to abrasion, rodents, and other forms of physical damage.
Weight and Cost:
Heavier and typically more expensive than single sheath cables due to additional materials.
Applications:
Preferred in areas with higher potential for mechanical stress, such as regions with dense vegetation or frequent severe weather.
What Are the Applications of ADSS Cables?
ADSS (All-Dielectric Self-Supporting) cables are widely used in several areas:
Short Span Aerial Installations:
Ideal for roadside power poles due to their lightweight, selfsupporting design.
Near High-Voltage Power Lines:
Their non-metallic nature makes them safe for use close to highvoltage lines.
Telecommunications:
Employed in long-distance telecom networks, capable of supporting up to 100 km circuits without repeaters using single-mode fibers.
Utility Networks:
Used by power utilities for reliable communication within the power grid.
Rural Connectivity:
Useful for providing broadband in rural or hard-to-reach areas.
Military Use: Originally developed for military applications, they are still used for rapid deployment in field communications.
How to select the right ADSS cable?
Selecting the right ADSS (All-Dielectric Self- Supporting) cable involves considering several key factors to ensure it meets the specific requirements of your project. Here's a guide to help you make the right choice:
Span Length:
Choose based on the distance between support structures; Short spans like 80m, longer spans up to 1000m.
Fiber Count:
Decide on the number of fibers(6,12,24,48,96,144) needed for your data transmission requirements.
Fiber type:
Most popular is G.652.D Environmental Conditions: Consider factors like wind, ice, and UV exposure to determine the need for protective sheathing.
Proximity to Power Lines:
Ensure the cableʼs electrical characteristics are safe for installation near power lines.
Mechanical Loads:
Evaluate the cableʼs tensile strength and weight for installation and environmental stress resistance.
Cable Diameter and Weight:
Balance strength with the limitations of installation and support structures.
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