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How to design outdoor optical cables to meet the tensile and pressure resistance requirements of the outdoor environment?

Material selection and structural design
1. High-strength aramid fiber reinforced core
Suzhou TeRuiTong Communication Co., Ltd. first uses high-strength aramid fiber (such as Kevlar) as the reinforcing core in the design of outdoor optical cables. Aramid fiber is known for its extremely high tensile strength and good fatigue resistance. It can effectively resist external pulling forces, such as wind, ice load or human drag, ensuring that optical cables can remain stable in extreme weather and complex environments. . By accurately calculating the required tensile strength of the outdoor fiber optic cables and selecting the appropriate aramid fiber specifications and quantity, the strength of the optical cable is ensured while the overall weight is controlled, making construction and maintenance easier.
2. Double-layer sheath structure
In order to improve the pressure resistance of the outdoor optical cable, the company adopts a double-layer sheath design. The inner sheath is usually made of polyethylene (PE) or low-smoke halogen-free flame retardant material (LSZH), which not only provides basic mechanical protection and moisture-proof functions, but also effectively isolates the direct impact of the external environment on the optical fiber. The outer sheath is made of harder materials, such as polyurethane (PU) or high-density polyethylene (HDPE), to further enhance the cable's pressure resistance, wear resistance and aging resistance. The combination of double-layer sheath not only ensures the flexibility and flexibility of the optical cable, but also greatly improves its outdoor survivability.
Special processes and technical applications
1. Loose tube structure design
Inside the optical cable, a loose tube structure design is used between the optical fiber and the reinforcing core. This design allows the optical cable to have a certain buffer space when it is subjected to external forces, preventing the optical fiber from being damaged due to direct force. The loose tube structure can also effectively reduce the impact of temperature changes on the internal stress of the optical cable and improve the environmental adaptability of the outdoor fiber optic wire.
2. Waterproof sealing technology
In view of the changeable and moisture-prone outdoor environment, Suzhou TeRuiTong adopts advanced waterproof sealing technology, such as heat-shrinkable casing, gel filling or special waterproof tape, etc., to ensure complete sealing of optical cable ends and joints, effectively preventing Moisture intrusion prolongs the service life of optical cables.
3. Anti-UV aging treatment
Outdoor optical cables are exposed to sunlight for a long time, and long-term exposure to ultraviolet rays will accelerate material aging. Therefore, the company performs anti-UV aging treatment on the outer sheath materials of all outdoor fiber optic wires. By adding specific anti-UV additives or using special formula materials, the weather resistance of the sheaths is significantly improved to ensure long-term stable operation of optical cables outdoors.
Suzhou TeRuiTong Communications Co., Ltd. is well aware of the importance of product quality, so it has strict testing links after every process of optical cable production. For the final products, the company not only conducts comprehensive testing in compliance with international and industry standards, but also conducts customized testing based on the specific needs of customers to ensure that each optical cable can meet or even exceed expected performance indicators.
The company has a complete range of top testing equipment in the industry, including but not limited to tensile testing machines, pressure testers, environmental simulation test chambers, etc., which can simulate various extreme environmental conditions and test the key properties of outdoor fiber optic cables such as tensile strength, compression resistance, and weather resistance. Conduct a comprehensive assessment. In addition, the company also has a dedicated R&D center to continuously develop new detection technologies and methods to cope with the rapid development of future communication technology and changes in market demand.
In addition to standardized outdoor optical cable products, Suzhou TeRuiTong also provides customized solutions for specific application scenarios and customer needs, such as special requirements in defense communications, ship communications and other fields. The design and production comply with private network standards or special operator requirements. optical cable products. The company provides a comprehensive range of supporting components and construction tools, as well as professional technical support and after-sales services to ensure that customers can use optical cable products efficiently and safely.