Fiber optic cables may encounter a variety of faults during long-term use, which may be caused by a variety of factors. Here are some common fiber optic cable failures and their causes:
First, the optical fiber connection problem
Symptom: The optical fiber is improperly connected, resulting in signal attenuation, signal loss, or transmission interruption.
Possible causes:
The cable connection is loose or damaged.
Connectors are aged or contaminated.
The connection operation is not standard, such as improper peeling length of sheath.
Second, the optical fiber line is faulty
Fault symptom: The transmission of the optical fiber line is blocked, and the signal quality is decreased.
Possible causes:
Damage to the line, such as crushing, breaking, or external impact.
The line is subject to external interference, such as electromagnetic interference, lightning and so on.
Improper line laying, such as excessive bending, stretching too tight.
Third, optical fiber aging
Symptom: The optical fiber ages gradually, which degrades the signal transmission quality.
Possible causes:
Optical fiber materials produce static fatigue over time.
Factors such as ambient temperature and humidity accelerate optical fiber aging.
Fourth, the optical fiber is damp
Fault symptom: The signal transmission quality of the optical fiber is significantly decreased after being damp.
Possible causes:
The optical fiber connector box is improperly sealed, causing water to enter.
The cable is laid in a humid environment without taking any moisture proof measures.
Fifth, the failure caused by external factors
Symptom: The optical fiber cable is damaged by external forces, resulting in signal interruption.
Possible causes:
Construction, excavation and other engineering activities cut the cable.
Vehicle hangs up or hits the cable.
Malicious destruction or theft of optical cable.
Sixth, the failure caused by natural disasters
Symptom: Optical fiber cables are damaged or signal transmission is interrupted due to natural disasters.
Possible causes:
Flood, strong wind, ice and other natural disasters rush or break the cable.
Lightning strikes the optical cable, causing damage to the cable.
Fire destroys the cable or its protection.
Seventh, manufacturing quality issues
Fault phenomenon: There are defects in the optical fiber cable during the production process, resulting in unstable signal transmission quality.
Possible causes:
The optical fiber material quality is not up to standard.
Improper production process control, such as uneven fiber drawing, loose coupling box packaging, etc.
Eighth, the failure caused by environmental factors
Fault symptom: The signal transmission quality of the optical fiber cable is decreased or interrupted due to environmental factors.
Possible causes:
High intensity ultraviolet radiation causes accelerated aging of optical cable.
High temperature or low temperature environment affects the properties of optical cable materials.
The underground electrical corrosion environment causes erosion of optical cable.
Troubleshooting method
Fault location: The use of professional optical cable fault locator equipment to accurately determine the fault location.
Fault rectification: Take appropriate measures based on the type and cause of the fault, such as replacing damaged optical fibers or connectors, repairing cables, and improving the laying environment.
Preventive measures: Strengthen the protection measures of optical cable, such as avoiding contact with other construction machinery, reasonable design and construction of optical cable laying process, regular detection and maintenance of optical cable.
To sum up, common faults of optical fiber cables involve multiple aspects, and you need to consider the fault symptoms, possible causes, and handling methods. In practical applications, the maintenance and maintenance of optical fiber cables should be strengthened to discover and deal with potential faults in time to ensure the stable operation of optical fiber communication systems.
