1. The tensile strength
Using drawing method through the pipeline laying optical cable of cable tension strength must be considered. When the cable hoisting, in vertical pipe, suspended between two poles or laying on the seafloor, anti tension reinforcement must be able to support the weight of the cable itself. In between the two poles hanging overhead cable must also withstand the test of heavy snow and high winds.
2. Compression resistance
Sometimes cable may suffer from the side of a great impact, the impact could crush optical fiber. Some cable also must be able to withstand large transport roller compaction.
3. Protect flexion
Sharp bend brings two problems, one is bend will produce radiation loss, the second is optical fiber is likely to damage. Good cable should have sufficient strength, can prevent excessive bending; At the same time, also has certain flexibility, to ensure easy to transport and laid.
4. Damage protection
Glass fiber in the case of damage degradation performance significantly. Caused by damage of tiny cracks extend along the glass and the loss increased significantly.
5. Vibration isolation
Vibration will lead to the increase of the fiber loss. In the design of optical cable, optical fiber with pads can restrict excessive movement.
6. Moistureproof and prevent the chemical erosion
Glass fiber if long time exposed to moisture and chemicals, performance degradation. Proper cable structure can protect optical fiber, no contact with these substances. In addition to should have high mechanical strength and chemical protection performance, good optical cable should also has light weight, small size, more flexible, fire prevention, prevent animal HSS bit and is not sensitive to temperature and other performance.