Optical cables are mainly composed of a certain number of cable cores, plastic protective sheaths, reinforced steel wires, fillers, outer sheaths, waterproof layers, buffer layers, insulated metal wires, etc. The components are adjusted according to the type of light and application scenarios. This article will also introduce the directly buried ADSS optical cable components.
After receiving the LOS alarm of light-emitting and light-receiving, in the communication room, first use professional optical cable survey equipment such as OTDR or optical cable survey instrument to find cables and determine the distance of breakpoints. Real production and life activities, such as road building, house building, etc., may cause external damage to the optical cable. If the optical cable needs to be replaced, it is also necessary to cut a part of the good optical cable in advance and replace the broken optical cable. For optical cables damaged by external force, the breakpoint generally occurs at the construction site.
1. Find the fiber optic cable with the breakpoint:
2. Cut off the outermost rubber jacket of the optical cable and the aramid yarn inside.
3. Prepare the optical cable splice box and peel off the second layer of rubber covering the optical cable.
4. Peel off the reinforcement and the reinforcement core. There will be oil filling between the reinforcement, reinforcement and the cable core. When stripping, pay attention to cleaning the cable core and sleeve with a paper towel.
5. Fix the stripped fiber optic cable on both ends of the fiber optic splice box.
6. Strip 12 cable cores from each cable, thermally strip the coating of the optical fiber, and use alcohol cotton to clean the stripped cores, and line up according to the spectral order of the cores, and place them on the optical fiber. Fix on the cutting tool and cut so that 12 is flush with the head of the fiber core.
7. After cutting and cleaning the optical cables on both sides of the breakpoint, place them on the ribbon optical cable fusion splicer, splicing each cable core, and observe the fusion effect through the display screen of the fusion splicer.
8. The spliced cable core is subjected to heat shrinking treatment of the casing, and the splicing point is fixed to prevent the occurrence of secondary breakpoints.
9. After all the 48-core cable cores are spliced, place them in the optical cable splice box, place the excess cable cores reasonably, and seal the splice box.
The 48-core ADSS optical cable is damaged due to excavation by external force, and the fault that the optical cable is interrupted is completed. Contact the service dispatching and monitoring department to check whether the service alarm is cleared.