Direct Buried Optical Cable Maintenance Measures

Updated on Mon Aug 18 2025

What are the maintenance measures for direct buried optical cables

1. Technical maintenance of optical cable lines

Because within the service life of the optical fiber digital communication system, due to the influence of aging, temperature and other factors, the total attenuation of the optical fiber in the direct buried optical cable relay section will change to a certain extent, so the optical fiber attenuation constant technology of the direct buried optical cable must be carried out. maintain. At the same time, it is necessary to perform technical maintenance on the electrical performance of the metal wire pair in the direct buried optical cable and the insulation resistance of the outer sheath of the optical cable.


2. Do a good job in the daily protection of optical cable lines

Relevant maintenance departments can organize manpower purposefully, do a good job in daily protection work, conduct regular inspections and special fixed-point inspections, so as to eliminate corrosive and other substances piled up on the direct-buried optical cable lines at any time, and at the same time in the excavation of direct-buried optical cables, The easy-to-scouring areas should be reinforced and repaired. In addition, the joint boxes for directly buried optical cables should be secured to prevent a series of deformation, corrosion damage, etc.

GYTA33 cable

3. Lightning protection for directly buried optical cables

Although the direct buried optical cable has good protection performance, the optical cable has an armor layer and a strengthening core, so when the direct buried optical cable line is struck by lightning, the optical cable line will also be damaged and burned. Therefore, when erecting a direct-buried optical cable, a suitable surge protection device can be used. In addition, the terminal box should be grounded after the optical cable enters the terminal box, so that the direct-buried optical cable of the brand can be protected against lightning.


Therefore, in order to fully demonstrate the powerful performance and function of direct-buried optical cables, and to better maintain communication conditions, comprehensive technical maintenance of optical cable lines, daily protection of direct-buried optical cable lines, and lightning protection for optical cables are three The important maintenance measures are the relevant maintenance teams must organize manpower and material resources to put them into action. Only in this way can the direct buried optical cable better serve life.



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