1. Tensile strength
When using traction to lay optical cables through pipelines, the tensile strength of the cables must be considered. When the optical cable is lifted in a vertical pipeline, suspended between two power poles, or laid on the seabed, the tensile reinforcement must be able to support the weight of the optical cable itself. The overhead optical cable hanging between two power poles must also withstand the test of heavy snow and strong winds.
2. Anti extrusion ability
Sometimes optical cables may be subjected to significant impact from the side, which can crush the fiber. Some optical cables must also be able to withstand the crushing of large transportation vehicles.
3. Excessive bending protection
Sharp bending can cause two problems: firstly, there is radiation loss at the bending point, and secondly, the optical fiber may be damaged. A good optical cable should have sufficient strength to prevent excessive bending; At the same time, there must be a certain degree of flexibility to ensure easy transportation and laying.
4. Damage protection
Glass fiber optic performance will deteriorate sharply when damaged. Fine cracks caused by damage can extend along the glass and significantly increase losses.
5. Vibration isolation
Vibration can cause an increase in fiber loss. When designing optical cables, adding pads to the fibers can limit excessive movement.
6. Moisture and chemical erosion prevention
If glass fiber is exposed to moisture and chemicals for a long time, its performance will deteriorate. An appropriate fiber optic cable structure can protect the fiber optic cable from contact with these substances. In addition to having high mechanical strength and chemical protection performance, good optical cables should also have properties such as light weight, small size, flexibility, fire resistance, anti animal biting, and insensitivity to temperature.