Share some precautions for optical cable construction specifications

1.Line distribution

The distribution of radio and television lines is similar to that of telecommunications and mobile cables. The specific laying methods of each business are somewhat different. They are mainly laid in three forms, namely filling, ducting, overhead sharing and usually not failing at the same time. They can use the form of backup resource sharing, as well as the three major businesses. Industry cooperation agreement, exchange of idle optical fiber resources, cutting can prevent sudden signal failures.

2.Optical cable detection

①Single reel test. When receiving the optical cable, check the optical cable to prevent the outer skin from being damaged and the end from having problems; see if the optical cable is qualified. Test the length of the optical fiber, check the integrity of the optical cable, the length of the skin and the registration of the outer packaging of the reel. Once the indicators, packaging and other problems are found, they should be reported to the construction company in writing immediately. ②Attached optical cable. The construction company must re-measure the length of the project to obtain the correct length between the poles. At the same time, according to the length of the optical cable, the work of organizing and configuring the reel reasonably can achieve full reel laying as much as possible.

3.Laying and setting up optical cables

In addition, the bending radius of the optical cable must be 15 times larger than the radius of the optical cable, and the project can be controlled below 20 times, and it cannot be folded or rolled. According to the outer diameter of the optical cable, the hook should be reasonably selected. The distance of the 25-hook card hanging is 40+3cm, and the corresponding card hanging distance of the 35-hook is 5 +3cm. The hook length on both sides of the els is 25+2cm. The card hook direction must be consistent. The remaining 48-core (including 48-core) main optical cables are 10-15m for every 5 cables, that is, 40-60m more per kilogram; 36-core (including 36-core) optical cables have 15-25m extension for 10 cables. The connection can be stacked with 1500cm of optical cable, and the reserved optical cable pad can be directly fixed to the rod of the connection port after the connection is completed. After the optical cable is laid, it is necessary to connect it flat without distortion and mechanical damage. Add a signboard for every 5 optical cables; add a signboard for the line box, rotation angle, and cable, keep a clear signboard, and hang it on the corresponding optical cable.

4.Optical cable connection

The environment for connecting the optical cable must be kept clean. If there is dust in the operating environment, it cannot be operated. Before connecting the optical cable, strictly check the specifications and structure of the optical cable, and carefully check the cable duplication, box fixing position, and cable installation length. After removing the optical cable, number the optical fiber according to the kit. The metal parts of the delivery box and the optical cable need to be electrically cut according to the design requirements, and their cores are fixed on the screws. Generally, welding optical fiber is used. Before using the welding machine, clean the important positions to prevent damage to the optical fiber and affect the connection quality. The characteristics of the optical fiber and the external environmental conditions are combined to put the welding machine in the most ideal state.