Facts about ADSS All-dielectric self-supporting cable

Explain Fully Dielectric Self Supporting Fiber Optic Cable ADSS

Self Supporting All Media Optical Cable is a non-metallic optical cable that is composed entirely of dielectric materials and contains the necessary support system and can be suspended directly on the power pole tower. Communication lines in an air deployment environment such as multiple zones and large sections.


The mechanical properties of ADSS optical cable are mainly reflected in the Maximum Allowable Tension (MAT), Daily Strength (EDS), and Maximum Tensile Strength (UTS).


ADSS cables use different jackets for different power routes. The most common ADSS jackets are available in two types: PE jacket and AT jacket.


PE cover: ordinary polyethylene cover. Used for power lines below 110KV.


AT holster: anti-tracking holster. Used for power lines above 110KV.


After reading the short introduction above, do you feel a little basic understanding of customers?


In the following, I will share some of the most widely used knowledge of ADSS cables from a factory production perspective, that is, from a structural design and materials perspective.


Let's first take a look at the first image below.


This structural design is the most widely used single jacketed braided cable.


It is made up of 6 internal shells or filled with FRP, which are combined around a central reinforcement (GFRP, a glass fiber reinforcement). We call this frame design 6 + 1.


6 TUBES consist of 6 colors, respectively:


The number of fibers in each sleeve can be 1-24.

See figure below: As the number of fibers increases, so does the number of tubes.



The advantages of this structural design: 1. More material cost-saving 2. Cable diameter can be smaller and lighter 3. Suitable for small fiber counts.


For internal structural design, how to choose? I summarize,


Therefore, according to a convention, we will recommend a 6 + 1 frame design. If your budget is very small, you can use a 5 + 1 frame design.


After talking about the design of the internal structure, we started talking about the sheath, which is the outer layer of the cable.


In terms of materials, they can be divided into two categories: AT and PE.


PE cover: ordinary polyethylene cover. Used for power lines below 110KV.


AT holster: Strengthen the anti-tracking holster. Used for power lines above 110KV.


Most of them use PE materials, so let's explain.


Due to the Latin American country, the supply voltage is generally not high, so the materials currently exported by our factory are mainly PE.


PE materials are also classified into HDPE (high-density PE) and MDPE (medium density PE).


HDPE (High-Density PE) is 30-40% more expensive than MDPE (Medium Density PE). Both can be guaranteed to be used for more than 30 years. The difference is that HDPE is harder and more wear-resistant. If your purchase budget is enough, use HDPE; if you want a lower price, please use MDPE. Because they can guarantee basic use, no problem.


After finishing the material, I need to talk about the structure. It is generally divided into a 1-layer layer and a 2-layer layer. As shown in the figure below. This is very clear.

Why is it divided into a 1-layer jacket and a 2-layer jacket? Why?


I think this is because the skin is thicker, others can not make you feel uncomfortable, they will not make you feel hurt. Defend yourself effectively against other people's attacks.


This is a metaphor. It means that it can prevent damage. These external damages include: birds, squirrels, worms, hail, acid rain, these natural damages. 2-layer jacket, double protection.



Finally, the most important thing is the use of Kevlar, which affects the length of the cable, it is the maximum pull.


This part can be said in a simple or complicated way, for everyone I am willing to rewrite an article dedicated to the design of Kevlar on ADSS cable.


Product Director: James Xu

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