GL FIBER, as an fiber cable manufacturer with 21 years of production experience, needs to consider multiple factors when choosing the correct model and specification of underground fiber optic cable. Here are some key steps and suggestions:
1. Clarify basic needs
Communication rate and transmission distance: Determine the required communicat
ion rate and transmission distance according to network planning to select the appropriate single-mode or multi-mode optical cable. Single-mode optical cable is suitable f
or long-distance, high-speed communication transmission, while multi-mode optical cable is suitable for short-distance, lower-speed application scenarios.
Core number selection: The core number refers to the number of optical fibers inside the optical cable, which is generally divided into 2 to 144 cores. Choosing the appropriate core number according to actual needs can effectively reduce the cost of optical cable.
2. Consider environmental factors
Geographic and climatic conditions: Consider the geographical environment (such as mountains, hills, flat land, etc.) and climatic conditions (such as temperature, humidity, soil pH, etc.) of the area where the optical cable is laid. For example, coastal areas may require waterproof and corrosion-resistant optical cables; high-cold areas require anti-freeze and anti-bend optical cables.
Special environmental factors: Assess whether there are special situations such as AC electrified railways, high-voltage transmission lines, lightning damage, flood disasters, and rodent damage. These factors may affect the selection of optical cables, such as the need to select optical cables with lightning protection and rodent-proof properties.
3. Understand the structure and performance of optical cables
Cable core structure: The optical cable with loose tube fiber structure has a larger range of free movement in the casing, which can basically offset the impact of temperature changes and is suitable for areas with large changes in ambient temperature.
Sheath and armor: Select appropriate sheath and armor materials according to the laying environment. For example, aluminum tape armor plays a radial moisture-proof role, steel tape armor plays a compressive role, and steel wire armor provides tensile and compressive properties.
Grease filling: Grease filling can improve the moisture-proof performance of optical cables and maintain the stability of transmission quality.
4. Select specific models
Based on the above analysis, select in combination with the optical cable models on the market. The following are some common underground fiber optic cable models and their characteristics:
GYTA53 type fiber cable: outdoor use, grease filling, aluminum tape longitudinally wrapped polyethylene outer sheath, suitable for overhead and pipeline laying. It has good moisture and rustproof effect, but the lateral pressure index is slightly inferior to that of steel belt.
GYTY53 type fiber cable: outdoor use, grease filling, steel belt longitudinally wrapped polyethylene double sheath, good anti-flattening effect, suitable for direct burial environment, places with high moisture requirements or high mechanical strength requirements.
GYFTA53 type fiber cable: outdoor use, grease filling, steel belt longitudinally wrapped, polyethylene inner sheath, non-metallic reinforcement, aluminum-polyethylene outer sheath, light weight, suitable for direct burial environment.
GYTS type fiber cable: with steel belt armor and polyethylene outer sheath, providing additional protection, suitable for direct burial environment requiring higher mechanical strength.
5. Consider post-maintenance
When selecting optical cables, you should also pay attention to their maintenance convenience so that they can be quickly located and repaired when a fault occurs. At the same time, follow the relevant national and industry standards to ensure that the quality of the project meets the requirements of the specifications.
In summary, choosing the correct model and specification of underground fiber optic cables requires comprehensive consideration of communication needs, environmental factors, optical cable structure and performance, and post-maintenance. Through careful analysis and comparison, the most suitable optical cable model can be selected to ensure the stability and reliability of the communication network.