What Should We Pay Attention To When Welding Indoor Optical Cable?

Indoor optical cable is the optical cable laid in the building, mainly used in the building communication equipment, computers, switches and end-user equipment. To get the message across. Indoor optical cables are mainly used for wiring in buildings, as well as connections between network devices.
A. Pay attention to the cutting depth when stripping the cable.
The key to the peeling of the outer sheath of the cable is to master the cutting depth of the sheath cutter, otherwise it is easy to break the fiber. In actual operation, the sheath cutting knife should be rotated, while paying attention to the incision, if the white polyester band can be seen, you should stop the feed and remove the cutter. This step is a skilled process that requires many practices to master the depth of the cut.
B. Fixing of optical cable and stripping of core beam tube.
After the optical cable is peeled, fix the optical cable in the optical cable connector box, open and strip the fiber core beam tube, and do all the preparations before optical fiber welding.
Attention should be paid at this time
1.) The core beam tube cannot be twisted. Before fixing the optical cable, you must pay attention to the position of the fiber core beam tube. When the strengthening piece passes through the fixing screw, the strengthening piece must be filled with the beam tube, not the fiber core beam tube. The fiber core beam tube must be on the same side of the strengthening piece entering the optical fiber holding plate, and cannot be twisted on the strengthening piece. If the reinforcement is pressed on the fiber core beam tube, the fiber core beam tube deformation will cause excessive loss, and the fiber in the fiber core beam tube will also break due to long-term stress, leaving hidden dangers to the project.
2.) The length of the reinforcement should be appropriate. After the position of the core beam tube is determined, the cable can be fixed. The optical cable must be fixed so that the position of the optical fiber in the connector box will not be loose, and the optical fiber loss or fiber breaking problem will be avoided due to the movement of the optical cable position. The fixing of the optical cable is divided into the fixing of the reinforcement and the fixing of the rest of the optical cable.
The fixing of the reinforcement should pay attention to its length, too long, can not be put in the joint box; It's too short to fix the cable. In general, when cutting the reinforcement, the distance between the splint of the fixed cable and the screw of the fixed reinforcement should be equal to the length left. The rest of the cable is fixed after the reinforcement is fixed, the clamp is tightened with screws, and it is tightly fixed at the cable inlet of the connector box.
3.) The opening and stripping length of the fiber core beam tube should be appropriate. After the cable is fixed, the stripping tube can be opened. If the stripping length is too long and reaches the placement slot of the optical fiber heat shrink tube, the residual fiber will be damaged when the fiber is coiled. When the stripping length is too short and the core beam tube is fixed, the fixing clip will get stuck on the optical fiber, which is easy to damage the optical fiber.
Therefore, it is generally appropriate to open and strip it to two fixed bayonets, and the fiber core beam tube will not cause optical fiber stress damage at this length and can be fixed well. However, when fixed, the clip can not be too tight, otherwise the fiber of the fiber core beam tube will increase the loss due to the force, and the fiber will break for a long time, leaving hidden dangers to the project.
C. Optical fiber welding.
The connection of optical fiber is directly related to the quality and life of the project, and the key is the preparation of optical fiber end face. The optical fiber end face is smooth, no burrs or defects, the welding machine can accept the confirmation well, and can make the joint to meet the engineering requirements, if the optical fiber end face is not qualified, the welding machine will refuse to work, or the joint loss is very large, does not meet the engineering requirements.
In the process of making the end face of the optical fiber, the wire stripper should be perpendicular to the axis of the optical fiber to ensure that the wire stripper does not scratch the optical fiber. When cutting the optical fiber, it is necessary to operate in strict accordance with the regulations, and the use of the end cutting knife should be precise in cutting length, fast in action, and clever in force to ensure that the optical fiber is broken, rather than broken. When taking the optical fiber, it is necessary to ensure that the optical fiber does not touch any object to avoid the end face injury, so that the end face is smooth and qualified.
Welding machine is the key equipment of optical fiber welding, but also a high degree of precision and expensive equipment. In the process of use must be strictly in accordance with the rules to operate, otherwise it may cause heavy losses. Special attention should be paid to the operating procedure of the welding machine, and the length of the heat shrink tube should be set in accordance with the requirements.
D. Protection of the remaining fibers After the optical fibers are fused, protect the optical fibers with heat shrink tubes and coil the remaining fibers.