What is a fiber optic splice closure? What are the internal structures of the optical cable splice box?
Optical cable splice box is a popular name, its scientific name is optical cable splicing box, also known as optical cable splicing package, optical cable splicing package and gun barrel. It belongs to the mechanical pressure sealing joint system and is a splice protection device that provides optical, sealing and mechanical strength continuity between adjacent optical cables. It is mainly suitable for straight-through and branch connections of various structural optical cables in overhead, pipeline, direct burial and other laying methods.
The optical cable splice box is a connecting part that connects two or more optical cables together and has protective parts. It must be used in the construction of optical cable lines, and it is one of the very important equipment. The quality of the optical cable splice box directly affects the quality of optical cables. The quality of the line and the service life of the optical cable line.
According to the optical cable connection method, it can be divided into straight-through type and branch type. According to whether the adapter can be assembled, it can be divided into an adapter type and an adapter type that cannot be assembled. According to the classification of the shell material, it can be divided into plastic shell and metal shell.
What are the internal structures of the optical cable splice box
1. Support frame: it is the main body of the internal components.
2. Optical cable fixing device: used for fixing the optical cable and the base and fixing the optical cable strengthening element. One is the internal fixing of the fiber optic cable strengthening core; the other is the clamping and fixing of the fiber optic cable and the support frame; the third is the sealing and fixing of the fiber optic cable and the cable entering and exiting the splice box with a heat shrinkable sheath.
3. Optical fiber placement device: It can store optical fiber connectors and remaining optical fibers in an orderly manner. The length of the remaining optical fibers should not be less than 1 meter, and the winding diameter of the remaining optical fiber reels should not be less than 35mm. Among them, the storage tray can have up to four layers, and the capacity is large, and the storage tray can be adjusted according to the number of cores connected by the optical cable.
4. Optical fiber connector protection: Put the heat-shrinkable protective sleeve on the fiber core fixing clip in the storage tray, or use silica gel fixing method.
5. Sealing of the optical cable and the splice box: Use abrasive cloth to polish the joint between the splice box and the optical cable at the entrance of the optical cable and the base, wipe the polished place with a cleaning agent, paste aluminum foil, and then put the heat shrinkable tube on the splice box At the entry point of the cable, use a blowtorch to heat slowly in the middle first and then to both ends, so that the entire heat shrinkable tube can be completely shrunk.
The above is all the content of what is an optical cable splice box and what is the internal structure of the optical cable splice box. In fact, the optical cable splice box is suitable for direct and branch connections of various structural optical cables such as overhead, pipeline, and direct burial. The optical cable splicing box is also suitable for splicing in the terminal room of the structural optical cable.
