Abstract
The article comes up with a measure that uses fiber vibration sensing technology to avoid external intrusion harm on electric cables, dealing with the problem that buried cables are sometimes destroyed by constructions. This measure is based on dual Mach-Zehnder(M-Z) interference, and it makes use of power grids’ fiber-optic cables laid in the cable trench—along with the electric cables—as sensors. These sensors could monitor vibration near to optical cables and trench, and recognize the events that vibrate the cable, and finally judge the extent of the harm caused by the events. The article also try to find out a more reliable and more efficient mechanism of patrolling electric cables, which is based on the abovementioned measure.
Highlights
With the huge power load pressure in cities, the scale of power cables for power grid construction has increased year by year
Since there are common communication optical cables laid in the same trench for buried cables, the optical fiber can be used as a vibration sensor required by optical fiber sensing technology to detect vibrations near the
This article mainly studies the use of optical fiber vibration sensing technology, using the power communication optical cable laid with the buried cable to monitor the vibration of the buried cable trench where the optical cable is located, and judge whether the vibration event will endanger the safety of the cable and cable trench, and the research is based on this technology establishes a new way of cable operation and maintenance inspection
Summary
With the huge power load pressure in cities, the scale of power cables for power grid construction has increased year by year. Optical fiber vibration sensing is a technology that can detect and warn of external force events that threaten cable safety. Since there are common communication optical cables laid in the same trench for buried cables, the optical fiber can be used as a vibration sensor required by optical fiber sensing technology to detect vibrations near the. This article mainly studies the use of optical fiber vibration sensing technology, using the power communication optical cable laid with the buried cable to monitor the vibration of the buried cable trench where the optical cable is located, and judge whether the vibration event will endanger the safety of the cable and cable trench, and the research is based on this technology establishes a new way of cable operation and maintenance inspection
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