A. Before construction, the occupancy of the pipeline should be checked, the plastic sub-pipes should be cleaned and placed, and the traction wire should be placed at the same time.

B. Calculate the deployment length, and there must be enough reserved length.

C. The length of one laying should not be too long (generally 2KM). When wiring, it should be pulled from the middle to both sides.

D. The traction force of the cabling is generally not more than 120kg, and the reinforced core part of the optical cable should be pulled, and the waterproof and strengthening treatment of the head of the optical cable should be done.

E. The lead-in and lead-out of the optical cable must be equipped with a guide device, and the floor cannot be directly mopped.

F. The pipeline optical cable should also pay attention to reliable grounding.

3) The laying of directly buried optical cables:

A. The depth of direct buried optical cable trench should be excavated according to the standard. The standard is shown in the following table:

B. Where it is not possible to dig trenches, the pipelines can be laid overhead or drilled.

C. The bottom of the ditch should be flat and firm, and a part of sand, cement or support can be pre-filled when necessary.