What are the performance requirements for fiber optic splice closures?

Fiber optic splice closures connect two fiber optic cables together and have a splice that protects the components. The optical cable connection part, that is, the optical cable joint, is the part that protects the connection between two or more optical cables by the optical cable splice sheath, and meets the requirements of transmission characteristics and mechanical properties.

Performance requirements for fiber optic splice closures

(1) Compatible with the program and laying method of the connected optical cable, there are many optical cable programs. The structural form of the joint sheath is also diverse.

(2) It has good sealing performance. It is generally required to effectively maintain the performance of waterproof, moisture-proof and harmful gas immersion within 20 years.

(3) It has a certain mechanical strength. It is required to apply pressure to the cable splice closure to 70% of its strength, and the performance of the optical fiber in it is still unaffected.

(4) Long-term corrosion resistance. At present, the shell of the joint box is made of plastic products. In addition to ensuring wear resistance, the aging resistance and insulation properties of the material should also meet the requirements of 20 years of life.

(5) Removable and reusable. If the connector needs to be repaired during construction and maintenance, it is not necessary to cut off the optical cable, but only need to open the connector sheath and re-encapsulate it after inspection. It is of great significance to improve economic efficiency and ensure smooth communication.

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