The self-supporting steel wire tension standard of the figure-8 optical cable is usually reflected in the tensile strength parameter, and the specific value needs to be determined according to the optical cable model and design specifications. The following is a typical reference range:
Tensile strength parameter example
Short-term allowable tensile force: Usually between 30N and 80N, the specific value needs to be determined in combination with the optical cable structure (such as loose tube material, sheath thickness, etc.).
Allowable flattening force: The minimum value is about 1.2N/100mm, and the specific value needs to refer to the product technical specifications.
Design suggestions
Self-supporting figure-8 optical cables mostly use non-metallic reinforcements (such as glass fiber reinforced tapes), and their tensile performance must meet the requirements of overhead installation with a span of less than 150 meters.
If a higher tensile standard is required, a design solution containing steel strands or special structures can be selected.
It is recommended to obtain the tensile test data of the specific model from the optical cable supplier to ensure that it meets the actual engineering needs.