When installing optical fiber bushing, how to avoid air entering the bushing

Preventing air from entering the tube is a key step to ensure the stability of the fiber connection point and the quality of signal transmission during the installation of the fiber sleeve. The following are some effective measures to prevent air from entering the casing:

First, preparation

Casing selection:

Select an optical fiber sleeve with good sealing performance, and ensure that the sleeve can tightly wrap the optical fiber after heating and shrinking, leaving no gaps.

Check the casing for damage or air holes and avoid using defective casing.

Fiber processing:

Before connecting the optical fiber, ensure that the optical fiber end face is smooth, clean, and free of impurities and pollutants.

Use alcohol cotton or other special cleaning agent to clean the optical fiber surface to remove grease and dust.

Second, installation process control

Environmental control:

Installation in a clean, dry environment reduces the possibility of airborne dust and moisture entering the casing.

Heating operation:

Use a heat gun or other heating tools to evenly heat the casing to avoid deformation or burning caused by local overheating.

During the heating process, gently rotating or shaking the casing helps the air inside the casing to escape. However, the operation should be gentle to avoid excessive stress on the optical fiber.

Heating time control:

According to the material and specifications of the casing, reasonable control of heating time. Ensure that the casing is fully shrunk and tightly wrapped around the optical fiber, while avoiding casing damage caused by prolonged heating.

Third, follow-up inspection and maintenance

Cooling and setting:

After heating, allow the casing to cool naturally to room temperature. Avoid stress or cracks inside the casing caused by sharp cooling.

Tightness check:

After cooling, carefully check the tightness of the casing. Ensure that the casing is tightly wrapped around the fiber connection point, and there are no gaps or bubbles.

If the seal is found to be poor, repair or replace the casing in time.

Daily maintenance:

Check the status of the fiber bushing regularly to ensure its tightness and integrity.

Keep the optical fiber communication equipment clean and dry to reduce the impact of external environment on the optical fiber sleeve.

In summary, measures such as preliminary preparation, installation process control, and follow-up inspection and maintenance can effectively prevent air from entering the fiber tube, thus ensuring the stability of the fiber connection point and signal transmission quality. In actual operation, the operator should operate in strict accordance with the specifications and pay attention to the details to improve the installation quality and efficiency.

Chengdu Focus Infra Materials Co.,Ltd is a global business trading company. The company focused on the field of fiber optical networks and data communications, our products are widely used in telecommunication transmission network systems, wide area networks, FTTH, FTTX, FTTA and security monitoring systems. Products mainly include：heat shrink tubes, cold shrink tubes, joint closures, terminal connector, terminal box, fiber optic splice closure, PLC splitter, fiber pigtail, FTTH accessories.