FTTH optical cable laying in corridor

Installation of OPGW cable tensioning clamps
2020年3月4日

General requirem KSD glasvezelkabel

a) Select the appropriate pipe material according to the site conditions.
b) Determine the length of the pipe and the installation position of the user box according to the field measurement. The installation height of the horizontal pipe and the passing box is the same.
c) Cut the pipe material to a suitable length according to the on-site measurement, and mill and file the fracture.
d) The horizontal pipeline should be tightly connected with the user box and the passing box. 3.2 Installation of bellows
a) The corrugated pipe is suitable for use in places with complex corridors and low requirements for aesthetics. It is easy to carry and cross vertical pipelines, but it is not convenient for secondary threading.
b) ①20 bellows can be used to protect the deployment of a single butterfly fiber optic cable, ①30 bellows can be used to protect the deployment of multiple butterfly fiber optic cables, and the bellows should be fixed to the wall by plastic pipe clips.
c) At the point of screw installation, select a suitable drill bit to drill holes, install expansion screws with expansion screws, install pipe clamps and fix the corrugated pipe, and the distance between the pipe clamps is 50 cm.
d) When the length of the straight section of the horizontal bellows exceeds 30 m or each length exceeds 15 m and there are more than two 90 ° bends, a pass box should be installed.
e) When the bellows passes through the corners or bumps of the building, a certain radian should be maintained, and pipe clamps should be installed at both ends of the radian to ensure the minimum bending radius of the butterfly cable and the convenience of putting in.
f) The butterfly fiber optic cable in the pass box should also meet its minimum bending half diameter requirement.
PVC pipe laying
a) The advantage of PVC pipe is that it is suitable for the field with high aesthetic requirements, and it is convenient to pass through the optical cable twice. The disadvantage is that the cost is high, it is not easy to carry, and it is difficult to cross the vertical pipe.
b) If you want to meet the needs of 1 staircase and 4 households to put 1 ~ 5 butterfly fiber optic cables, you can choose ①20 PVC pipe.
c) When the PVC pipe passes through the corners or bumps of the building, the cold bending method can be used to bend the PVC pipe. In order to facilitate the subsequent threading, the use of forming elbows should be avoided.
d) When installing PVC pipes, they should be arranged neatly, securely, and evenly spaced between points of fixation; install pipe clamps within 150 ~ 500mm of the terminal, the midpoint of the elbow or the junction box, and the user box; the straight section should also have pipes The card is fixed, and the distance is not more than 800mm.

 

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