How to express the model of composite optical cable

　　The type representation method of composite fiber optic cable usually follows certain naming rules, which help users identify the characteristics, uses and specifications of the fiber optic cable. The following is a detailed explanation of the type representation method of composite fiber optic cable:

　　First, the model composition

　　The type of composite cable is usually composed of the code of the cable type and the code of the specification, separated by a space or a specific symbol (such as "-").

　　Type code

　　The type code of a fiber optic cable consists of several parts, each of which is represented by a specific code. These parts usually include:

　　Classification code: Used to indicate the purpose or application environment of the optical cable. For example, "G" usually means optical cable, "Y" means outdoor optical cable, and "D" may mean power line composite optical cable (such as OPGW).

　　Reinforcement code: Used to indicate whether there is a reinforcement inside the cable, and the material of the reinforcement. For example, "F" means non-metallic reinforcement, and "unsigned" or "M" may mean metal reinforcement.

　　Structural Feature Code: Used to describe the structural characteristics of optical cables. For example, "X" represents the cable center tube structure, "T" represents the ointment-filled structure, and "D" represents the fiber ribbon structure.

　　Sheath code: Used to represent the sheath material or structure of a fiber optic cable. For example, "Y" means polyethylene sheath, "A" means aluminum-polyethylene adhesive structural sheath, "S" means steel-polyethylene adhesive structural sheath, etc.

　　Outer sheath or armour code: used to indicate whether there is an armour layer on the outside of the cable, as well as the material and structure of the armour layer. For example, "53" may indicate wrinkled steel strips and polyethylene sleeves with nylon layers, "33" may indicate steel wire armour, etc.

　　Specification code

　　The specification code of a fiber optic cable is used to indicate the size and number of fibers in the cable. It usually consists of the number of fibers and the fiber class code. The number of fibers is expressed as a number of the actual effective number of fibers of the same class in the cable, and the fiber class code is used to indicate the type and standard of the fiber. For example, "24B1" indicates that the cable contains 24 single-mode fibers of type B1.

　　IV. Examples

　　Here are some examples of composite cable models and their explanations:

　　GYXTW: denotes outdoor, center tube type, ointment filled with steel belt-polyethylene sheathed dense spinning layer twisted fiber optic cable with entrained steel wire.

　　GYTA: denotes outdoor, grease filled, aluminum strip longitudinal wrapped polyethylene outer sheath of metal reinforced armored optical cable.

　　GYTS: Represents outdoor, interlayer steel-reinforced fiber optic cable with high durability and compressive strength.

　　GYFTY: Represents outdoor, ointment-filled, non-metallic reinforced polyethylene outer sheath of non-metallic reinforced optical cable.

　　GYTA53 (or ADSS): Represents outdoor, armored composite fiber optic cable, also known as ADSS fiber optic cable, used in tower-to-tower and other occasions. The "53" here represents wrinkled steel strips and polyethylene sleeves with a nylon layer.

　　OPGW: represents an optical fiber composite overhead ground cable, which is placed in the ground wire of an overhead high-voltage transmission line to form an optical fiber communication network on the transmission line.

　　V. Precautions

　　The naming rules of different manufacturers may vary slightly, so when selecting a fiber optic cable, it is necessary to carefully consult the specifications or product manuals provided by the manufacturer.

　　The type representation method of optical cables may change with the development of technology and the update of standards, so it is necessary to pay attention to relevant standards and specifications in a timely manner.

　　To sum up, the model representation method of composite optical cable is a complex and systematic process, which involves many factors. By understanding the model representation method of optical cable, users can better identify the characteristics, uses and specifications of optical cable, so as to choose the cable product that suits their needs.