Shaanxi ADSS fiber optic cable has strong tensile strength, and the core material of ADSS fiber optic cable is the material of ADSS power overhead fiber optic cable

Description :

　　ADSS optical cable has a different structure from overhead conductors, and its tensile strength is borne by aramid rope. The elastic modulus of aramid rope is more than half that of steel, and its thermal expansion coefficient is a fraction of that of steel, which determines that the sag of ADSS optical cable is more sensitive to external load changes. Under icing conditions, the elongation of ADSS optical cables can reach 0.6%, while the elongation of conductors is only 0.1%; The sag is relatively slow to temperature changes, and remains basically unchanged during temperature changes; Under strong wind conditions, the wind deflection angle is very large. At a wind speed of 30m/s, the wind deflection angle can reach 80 °, while the wind deflection angle of the wire is only about half of that of the optical cable.

　　Has a strong ability to withstand extreme weather conditions such as strong winds and ice cover.

　　The outer protective layer of ADSS optical cable is made of AT or PE material, which operates in strong electric fields and has the problem of electrical corrosion.

　　ADSS optical cables may experience wind-induced vibrations. Smooth and stable lateral wind blowing towards the optical cable can cause wind vibration and fatigue damage at the hanging point.

　　ADSS optical cables have a certain degree of pressure resistance and can withstand the high grip strength of tension clamps. ADSS optical cables are installed on high-voltage transmission lines, with a general lifespan of over 25 years. There are many factors that affect their lifespan, including:

　　(1) The gradient of high-voltage induced electric field near the tower varies greatly. High voltage induced electric fields have strong electrical corrosion on optical cables. Generally, PE type is used for overhead power lines of 35KV and below, and AT type is used for lines of 110KV and above;

　　(2) For double circuit towers, due to power outages or line modifications in the first circuit, consideration should be given when selecting hanging points;

　　(3) When the line passes through a working area with salt spray and acid gas, chemical substances will corrode the outer sheath of the optical cable, causing damage to its electrical protection sleeve and making it susceptible to electric arc damage;

　　(4) Improper construction can cause damage or wear to the outer skin, and when operated in a long-term high-voltage electric field, the surface is prone to corrosion. A flat and smooth outer sheath of the optical cable can effectively reduce electrical corrosion and extend its service life.

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