Interpretation of 8-core outdoor optical cable wiring technology Outdoor optical cables are mainly used for the wiring of building group subsystems.
When implementing building complex subsystem wiring, optical fiber cables should be piped, and only as a last resort should direct buried optical cables or overhead optical cables be used.
In order to prevent sagging or slipping, fiber optic cables must be firmly fixed at the top, bottom and middle of the channels on each floor.
Normally, nylon ties or steel clips can be used for effective fixation.
Finally, linoleum sealing materials should be used to block and seal the gaps in all slots and pipe holes where optical cables pass through on each floor of the building, and fire prevention measures such as adding fireproof materials should be taken to achieve Moisture-proof and fire-proof effect.
When laying optical cables, an appropriate length should be reserved according to the design requirements. Generally 5m-10m should be reserved at the equipment end, and can be extended appropriately if there are special requirements.1. Clean and try.
Before laying the optical cable, the pipe holes should be cleaned section by section and tested.
Use a special cleaning tool when cleaning. After cleaning, use a test rod for test pass inspection.
The inner diameter of the plastic sub-tube should be 1.5 times the outer diameter of the optical cable.
When more than two sub-pipes are placed in a cement pipe hole, the equivalent total outer diameter of the sub-pipes should be less than 85% of the inner diameter of the pipe hole.
2. Lay out the plastic sub-tubes.
When two or more plastic sub-pipes are threaded, the ends do not need to be marked if the pipes are of different colors.
If the pipes are of the same color or have no color, their ends should be marked separately.
3. Optical cable traction.
The length of one optical cable pull should generally be less than 1000m.
When this distance is exceeded, segmented traction or auxiliary traction should be added in the middle to reduce cable tension and improve construction efficiency.
In order to protect the appearance of the optical cable from damage during the pulling process, protective measures such as guide devices or bell mouth protective tubes should be used when the optical cable penetrates into pipe holes, pipe corners, or intersects with other obstacles. .
