Скачать или смотреть What's in ADSS Cable？

ADSS (All-Dielectric Self-Supporting) cable is a specialized type of optical fiber cable designed for use in overhead power line installations where the cable needs to span between utility poles without metallic support or grounding. ADSS cables are particularly useful in high-voltage transmission environments due to their unique construction, which allows them to resist electrical fields without interfering with the power lines. Here's what's typically inside an ADSS cable:

1.Optical Fibers: At the heart of an ADSS cable are one or more optical fibers made of glass, which transmit data using light waves. These fibers are usually single-mode for long-distance transmission or multimode for shorter runs, depending on the application requirements.

2.Primary Buffer Tubes: The fibers are loosely housed within several primary buffer tubes. These tubes are made of a flexible and durable material, typically HDPE (High-Density Polyethylene), to protect the fibers from mechanical stress and moisture.

3.FRP (Fiberglass Reinforced Plastic) Rods or Aramid Yarns: Surrounding the buffer tubes are layers of strong, non-metallic materials like FRP rods or aramid yarns. These elements provide tensile strength, allowing the cable to support its own weight across long spans without sagging excessively.

4.Outer Jacket: The entire assembly is enclosed in an outer jacket made of weather-resistant materials, often UV-resistant PE (Polyethylene) or other polymers. This jacket protects the cable from environmental hazards such as sunlight, temperature extremes, and chemical exposure.

5.Neutral Layer (Optional): In some designs, there might be an additional layer of neutral material to balance the cable's construction and improve its performance under varying loads and temperatures.

6.Central Member (Optional): Some ADSS cables may feature a central strength member, typically a non-conductive material, to enhance the cable's overall strength and structural integrity.

7.Special Coatings and Gels: To further enhance the cable's performance in wet environments, ADSS cables may incorporate water-blocking gels or tapes that swell when in contact with water, preventing it from reaching the fibers.

The design of ADSS cables emphasizes non-conductivity and dielectric properties to ensure they do not conduct electricity, making them safe for deployment near high-voltage power lines without risk of electrical discharge or interference.