What are the reasons for the failure of plastic optical fiber cable
Optical fiber communication can be used to transmit signals because it makes good use of the role of optical fiber. The volume of optical fiber is very small, and has a good corrosion resistance, even if it is a long distance route, can also do a good transmission role. Nowadays, plastic optical cable lines have become the main means of communication.
Intrinsic factors, the insulation of optical fiber cable line, if the insulation performance is poor, joint box damp or water, will greatly reduce the operating strength of optical cable due to stress corrosion and static fatigue and other reasons, serious, there may be optical cable fracture, failure.
Line joint failure, which is also prone to problems, because the original optical cable structure has no protection or weakened, if it wants to work normally, it must rely on the joint box, so reduce joint failure, and better guarantee the smooth operation of the optical fiber line.
External factors, the first is the impact of thunder. All the network cables used in the wiring system are metal conductors. When they are struck by lightning, they will produce a strong current, which will cause damage to the optical cable equipment, and even cause casualties in serious cases. External force influence, this is caused by its wiring environment, the laying of optical fiber and cable is generally in the field, and its buried standard is deep underground layer below, so it is difficult to avoid damage to optical cable in this respect.
No matter adopt what kind of connection method in the construction of optical fiber connector parts of the coating layer has been removed, while strengthens the protection, but the strength of the fiber, the flexible joint is as good as they used to, plus the seasonal construction, temperature difference is bigger, or in the process of pan fiber when put the hot melt pipe too much influence, such as inappropriate position of the inside of the bare fiber will be squeezed to the internal formation of air bubbles. And in hot melt, dust and sand into the hot melt pipe, coupled with the influence of sun and rain, wind swing, vibration in the renovation process, the joint part of the overhead cable will have the possibility of obstacles.
The obstacles in the middle of the optical cable are caused by man-made external forces, natural disasters and other factors. In the test, the plastic optical fiber will be found in the same position of one or more channels blocked, or several optical fibers in a bundle tube appear large loss. In this case, you can determine the fault location based on the test distance and the maintenance diagram. If the total resistance is not caused by shooting, knife cutting or rodent damage, and the obstacle point is concealed to a certain extent, you can open the connector box that is considered close to the obstacle point, disconnect the faulty optical fiber, and test it on both sides
