The lifting and relocation of optical cables refers to the active lifting, relocation and reinforcement of primary and secondary trunk optical cables that are passively caused by external factors, due to the quality of line equipment falling below maintenance standards, natural disasters and other reasons. , protection, etc.
It is an effective means to take the initiative, solve hidden dangers, and avoid dangers.
First item: The ups and downs and relocation of trunk lines should be based on the principle of "safe routing, reasonable plans, and economically feasible", and personnel at the bureau and branch levels will conduct on-site inspections and formulate plans.
Inspect the impact of hidden dangers on optical cables in the affected paragraphs, analyze and demonstrate the possibility and reliability of the lifting and lowering of optical cable lines, and formulate practical, safe and reliable lifting plans and emergency treatment plans for line accidents ( Including circuit proxy).
Article 2: Strict control, those that can be moved or moved will not be moved, and those that can be raised and lowered in place will not be moved. .
To ensure the relative stability of the line as much as possible.
Article 3: For the ups and downs of trunk lines, a reporting system must be implemented and barriers must be built and retained.
Article 4: Technical responsibility and on-site implementation The person in charge should follow the following requirements:
1. If the upgrading and protection section of the main line includes the lifting and relocation of joint boxes and first-level main line water lines, or changes in laying methods, the director in charge or the director of the technical office of the bureau shall be the technical person in charge, and the sub-director and line wrapper shall be present;
2. The director of the technical office of the general moving cable and other pipeline crossing bureau, branch director, and line wrapper should be present ;
3. Above the optical cable andThe head of the groundbreaking technical room, branch director, and line wrapper within a three-meter radius should all be present;
4． Reinforce, add or move marking stones and billboards above the line, and the line wrapper should explore the burial depth of the optical cable and follow the work instructions.
Article 5: Organize construction according to the formulated plan.
Adhere to the principle of "be prepared before moving cables".
Firstly, conduct point-by-point detection of the cable routes within the proposed lifting and lowering sections to grasp the changes in the location and burial depth of the optical cables; secondly, delineate the location of the new trench based on the remaining cable length available on site, And organize the excavation of the new trench.
If the optical cable is raised and lowered in situ, the original optical cable should be carefully dug out and temporary safety measures should be taken before excavation of the proposed cable trench.
p>Sixth Article: Sprinkle clear white and gray lines on the optical cable route and draw the optical cable profile.
The optical cable should be excavated manually. Our personnel can dig several probe points to find the optical cable and constantly review the location and depth. This is strictly prohibited. Use mechanical excavation (high-voltage red lines cannot be touched)
Article 7: The depth of the new cable trench must comply with the optical cable technology Requirements and refer to the final elevation data of the site to prevent secondary rises and falls
Article 8: For lines with connectors, the connectors should be excavated last and properly handled. Safety measures should be taken when turning or lifting the connector box.
The computer rooms at both ends should be monitored and emergency plans should be activated immediately in case of special circumstances.
Article 9: When the optical cable is lifted and dropped into place, it should be backfilled according to regulations. If necessary, it should be further strengthened according to the on-site conditions. When protecting, cement cover or cement mortar can be prepared in advance to strengthen the protection of the cable trench.
Article 10: Carry out closed 24-hour management of the entire process of lifting and lowering optical cables, implement internal "three eyes" on the person in charge, and manage according to the "red zone".
In principle, optical cables cannot be exposed overnight
Article 11: The reinforcement and protection of optical cable lines must be secure and in place, and reinforcement measures should be taken reasonably according to different situations.
Article 12: Set up visible ancillary equipment in a timely manner and make data modifications.
