What is the traction speed for laying optical cables

The recommended traction speed for laying optical cables is generally up to 20 meters per minute, depending on cable type and installation conditions.

Recommended Traction Speed

During the installation of optical cables, particularly ADSS (All-Dielectric Self-Supporting) cables, the traction speed should not exceed 20 meters per minute to prevent mechanical stress and potential damage to the fibers. This speed ensures that the cable maintains a constant tension and avoids excessive sag, twisting, or contact with obstacles.

Traction Force and Tension Considerations

The traction force should not exceed 80% of the cable's allowable tension, with the instantaneous maximum force limited to 100% of the allowable tension. The main pulling force should be applied to the strength member (core) of the cable rather than the outer sheath to prevent damage. Use of tensioners and winches is recommended to maintain controlled tension, especially over long distances or complex terrain.

Swivels should be installed at the pulling end to prevent twisting during the pull.

Installation Precautions

Maintain a loose arc when releasing the cable from the drum to avoid kinks or small loops. Avoid sharp bends; the minimum bending radius should be at least 15 times the cable's outer diameter during installation. Use figure-8 loops when laying cable on the ground to prevent twisting.

Ensure continuous communication between personnel at both ends of the cable during traction. Check for obstacles such as branches, buildings, or the ground, and adjust tension or use pulleys as needed.

Summary

For safe and effective optical cable installation, adhere to a traction speed of up to 20 meters per minute, maintain tension within specified limits, and follow proper handling techniques to prevent mechanical damage. These practices help ensure the longevity and performance of the optical fiber network.