ADSS fiber optic cable/all-dielectric self-supporting fiber optic cable is a non-metallic fiber optic cable composed entirely of dielectric materials, including necessary support systems, and can be directly suspended on power towers. It is mainly used for communication routes of overhead high-voltage power transmission systems. It can be used for communication lines in overhead laying environments such as lightning-prone areas and large spans. Then the following ZR optical fiber and cable manufacturers will introduce the structure and characteristics of ADSS optical cable.
ADSS optical cable is mainly divided into two types: layered structure and central tube structure.
1. Layer-stranded structure: The layer-stranded structure is easy to obtain a safe fiber excess length. Although the diameter and weight are relatively large, it has advantages in medium and large span applications.
The fiber optic loose tube is wound on the central reinforcement at a certain pitch, and then the inner sheath is extruded. Then, according to the required tensile strength, the appropriate spun yarn is wrapped, and then the PE or AT sheath is extruded. Because the cable core can be filled with ointment, but the resistance of the ointment is small, under the condition of large span and large sag of ADSS optical cable, the cable core is easy to "slip", and the loose tube pitch is easy to change. The loose tube may be secured to the central strength member and dry core by suitable means.
2. Central tube structure: The central tube structure is easy to obtain a small diameter, and the ice wind load is small; the weight is also relatively light, but the excess length of the optical fiber is limited.
The optical fiber is placed in a PBT (or other suitable material) tube filled with water blocking ointment with a certain excess length, wrapped with suitable spun yarn according to the required tensile strength, and then extruded into a PE sheath.
Characteristics of ADSS fiber optic cable
It has a different structure from overhead conductors, and has strong tolerance in extremely harsh climatic environments. And has a certain resistance to pressure, can withstand the greater grip of the tension clamp. However, when the smooth and stable lateral wind blows to the optical cable, wind vibration will occur, and fatigue damage will occur at the hanging point. Because the outer sheath is made of AT or PE material, there will be galvanic corrosion problems when it operates in a strong electric field.
ADSS fiber optic cable application scenarios
Through the introduction of ZR Fiber, I believe that everyone has some understanding of the structure and characteristics of ADSS fiber optic cable. If you want to know more about ZR fiber jumper products, welcome customers to come and consult.
