ADSS optical cable is also called full-media self-supporting optical cable. All medium and optical cable is made of all-media material. Self-supporting type refers to the self-weight and external load of the optical cable itself. This name points out the environment in which this cable is used and its key technologies: because it is self-supporting, its mechanical strength is very important; the use of all-media materials is because the cable is in a high-voltage and high-energy environment and must be able to withstand high voltage. Impact; Because it is used overhead on the power pole tower, it must have a matching pendant to fix the cable to the tower. That is to say, ADSS cable has three key technologies: mechanical design of cable, determination of suspension point and selection and installation of supporting tools.
The mechanical properties of ADSS optical cable are mainly reflected in the Maximum Allowable Tension (MAT), the Every Day Strength (EDS) and the Ultimate Tensile Strength (UTS).
The national standard for ordinary optical cables specifies the mechanical strength that optical cables with different modes of use (such as overhead, pipelines, direct burial, etc.) should have. The ADSS cable is a self-supporting overhead cable, so it must withstand the long-term effects of its own gravity and must withstand the baptism of the natural environment. If the mechanical performance of the ADSS cable is not designed properly and is not compatible with the local weather, the cable will have potential safety hazards and the life expectancy will be compromised. Therefore, each ADSS cable project must be able to reach 1800 m/stop according to the natural environment of the cable routing and the span of the span ADSS. It has high withstand voltage, good anti-corrosion performance and lightning protection, and can be used at 500kV. Graded transmission line towers are laid and have strong anti-shock performance. The general sand gun will not cause damage to the cable when shooting at a distance of 10 meters. It also has strong low temperature resistance and environmental adaptability. The optical cable is independently laid independently of the power transmission line, and the construction and maintenance are relatively convenient, and the power failure operation is not required, and the optical cable is relatively inexpensive.