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Compared to the metal core, the non-metallic reinforcing core is much better in safety due to insulation, lightning protection, and strong electricity.Aramid reinforcement is much better than glass fiber reinforcement in the non-metallic reinforcement core, and bending resistance is very important in the application of FTTH.Price: aramid fiber > glass fiber > steel wirePerformance: Steel modulus aramid fiber reinforced glass fiber reinforced > >
If used indoors wiring, often turn, only use aramid fiber, not glass fiber reinforced core, in order to facilitate wiring.The steel wire has two uses in the optical cable, the 1. as the center stiffener, and the 2. as the outer metal wrap around the package.The advantage of using steel wire is its high strength and strong lateral pressure resistance. Often used in outdoor environments such as overhead, pipelines, buried or submerged.Price, there is no direct comparability, need to consider the use of the environment, such as outdoor direct buried environment, non-metallic fiber optic cable is inappropriate. Indoor wiring environment, metal fiber cable is not appropriate.Must be compared, in the same mechanical strength (tension meter), the price is certainly the most expensive non-metallic.
Aramid fiber reinforced fibers provide tensile resistance.The glass fiber reinforced core provides bending resistance to the fiber optic cable (because it is not easy to die after a glass fiber reinforced core is bent). A part of the tensile resistance is also provided, but the contribution of the glass fiber reinforcement core is negligible when calculating the tensile strength of the cable.Kevlar and glass fiber reinforced cores are used to make non-metallic optical cables, mostly for indoor environments, and for safety. Sometimes used in outdoor environments, such as ADSS cables for power systems. Because there is no metal component in the cable, it will not be disturbed by lightning, and there is no risk of arcing at the joint.
