Coating is an outer plastic layer applied to the cladding of a fiber optic cable for mechanical protection. It is typically a soft, plastic material that is designed to protect the fiber from physical damage. This layer helps to protect the cable from external elements, such as dust, moisture, and heat, which can adversely affect the integrity of the signal transmitted through the cable. Coating also helps to ensure the strength and durability of the cable, as the material is designed to resist wear and tear.
Coating is typically applied to the cable during the manufacturing process and is typically created using a variety of materials, such as PVC, rubber, or polyethylene. It is important to select the right type of coating material to ensure the cable is adequately protected. For example, PVC is commonly used for cables that are exposed to extreme temperatures, while rubber is typically used for cables that are exposed to high levels of moisture.
The thickness of the coating can also vary depending on the type of cable and the environment in which it is installed. Generally, thicker coatings are better at protecting the cable, as they provide a greater degree of protection. However, thicker coatings also add to the overall weight of the cable, so it is important to consider the application when selecting the right type of coating.
Overall, the coating of a fiber optic cable is an important consideration when selecting a cable. It helps to ensure the cable is protected from external elements, while also providing strength and durability. By selecting the right type of coating material and thickness, the cable can be adequately protected and perform to its maximum capability.