Understanding the basic knowledge of optical fiber cables for communication

How to choose the structure of optical fiber cable?
The structure of the
optical cable The optical cable is composed of a cable core, a strengthening element and a sheath.
(1) The cable core is divided into two structures: tight sleeve and loose sleeve. It can be composed of one or more optical fiber cores. The optical cable core diameter is 9um/125um single-mode fiber composed of one optical fiber core. The fiber core diameter of the fiber optic cable composed of multiple fiber cores is divided into multimode fibers of 50um/125um, 62.5um/125um, and 105um/125um.
(2) Strengthening elements are used to increase the load that the optical cable can withstand when laying, and there are metal and non-metallic points. The metal reinforcing element is used for long-distance transportation and outdoor connection, while the non-metallic reinforcing element is often used for indoor communication. The common material is aramid yarn, which is divided into domestic and imported, and the grade is also different. Commonly used foreign aramid yarns are Kevlar and Kevlar, which have good flame retardancy and tensile elasticity, and the price will be higher. For specific inquiry, please check (Sichuan Guangfa Technology Co., Ltd.).
(3) Cover
aluminum (contact) tape (person) and (Chen) poly (jing) ethylene (1) comprehensive (3) combined (9) longitudinal (8) bag (9) tape (2) adhesive (7) Boundary (3) outer (6) protective layer (3) layer (0) LAP, steel belt or steel wire garnish, polyethylene protective layer, etc.
(4) Casing method:
tight and loose casing