Interference from high-voltage cables and optical fibers
Since light does not interact with electromagnetic fields, fiber optic sensors and cables are inherently immune to Electromagnetic Interference (EMI), Radio Frequency Interference (RFI), and High-Voltage surges. bles in a high voltage environment, with typical line voltages of 115 kV or more, requires the evaluation of certain critical parameters. Curr ntly, there are a limited number of industry documents that address the requirements for optical fiber cables near high voltage circuits. Utilities build fiber optic networks in similar ways that others build them, aerial and underground, but they also mix aerial cables in their power distribution cables, sharing towers and poles. Application OPGW is mainly applied in communication line of newly constructed high voltage transmit electricity system with 35 KV or above, or replacement of existing ground wire of previous overhead high voltage transmit electricity system.
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