National standard non-metallic imported aramid yarn ADSS optical cable, domestic aramid ADSS self-supporting overhead optical cable

Description :

　　ADSS fiber optic cable, also known as all dielectric self-supporting fiber optic cable, uses all dielectric materials for the fiber optic cable. Self supporting refers to the ability of the fiber optic cable's reinforcing components to withstand their own weight and external loads. This name indicates the usage environment and key technologies of this type of optical cable: because it is self-supporting, its mechanical strength is crucial; The use of all dielectric materials is because optical cables are exposed to high voltage and strong electrical environments, and must be able to withstand the effects of strong electricity; As it is used overhead on the power tower, there must be supporting hangers to fix the optical cable on the tower. There are three key technologies for ADSS optical cables: mechanical design of the cable, determination of suspension points, and selection and installation of supporting fittings

　　The elongation of ADSS optical cable can reach 0.6%, while the wire 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.

　　ADSS optical cables use different sheaths for different power lines, and there are two common types of ADSS sheaths: PE sheath and AT sheath.

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

　　AT sheath: anti electric trace sheath. Used for power lines above 100KV.

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• ADSS optical cable