OPGW installation technology is based on IEEE1138-1994, IEEE524-1992 and other power sector overhead line installation safety management regulations and operating techniques to prevent OPGW from being strained, scratched, sprained, crushed, and broken during erection. Different The mechanical and physical properties of structural OPGWs will be slightly different, and some installation requirements may be different. Among them, the stainless steel tubular OPGW has a compact structure and is basically the same as the traditional overhead power line construction and installation method.
Therefore, the construction unit must first be familiar with the specific conditions of the OPGW structure and optical cable paths of the project. The design unit shall submit the construction design drawings to the construction unit. The construction unit shall cross-span based on the routing of the entire system communication network optical cable layout. , prepare optical cable reservations, etc., and prepare an "OPGW construction plan", and listen to the relevant technical requirements of the supplier to be aware of everything.
1. Tension pay-off method: The main OPGW erection construction machinery OPGW erection principle adopts the tension pay-off method to make the OPGW balanced force, always maintain a certain tension and in a suspended state, and avoid the optical cable from landing on the ground. If the surface of the outer armor layer is damaged, compensation for young crops can be reduced, physical labor intensity can be reduced, and construction progress can be improved.
2. Fault clearing and site preparation: Before OPGW overhead laying, survey the entire line, remove obstacles, sign a cross-crossing agreement with relevant departments, build protective frames, prepare tensioners and tractors Operating site and necessary safety measures.
3. Storage and transportation of OPGW optical cables: OPGW optical cable reels must not be laid flat or stacked; the optical cables installed in the reels should be rolled in the direction of the rotation arrow marked on the OPGW reels; the cable reels must not be subjected to collision or squeeze during loading and unloading. Pressure and any mechanical damage, insert the truck for loading and unloading.
4. On-site acceptance of OPGW optical cables and hardware accessories: After the OPGW optical cables and hardware accessories arrive at the site, on-site appearance inspection and opening testing should be carried out immediately, and the product factory report should be compared to verify changes during transportation.
Except as specified in the contract, general OPGW engineering materials include optical fiber composite overhead ground wires, guide optical cables, tension clamps, suspension clamps, anti-vibration hammers, anti-vibration hammer protective strips, down-conductor clamps, and intermediate Splice box, terminal box, pigtail, traction twist remover, traction net sleeve, steel pipe cutting knife.
5. Personnel training: Strictly implement power technology management, power safety and on-site maintenance regulations, etc., and provide effective training to construction operators.
Explain the extraordinary protection of optical fibers and conduct trial assembly and trial operation of relevant equipment to ensure personal and equipment safety.Ensure project quality and construction progress.
