Why can’t optical fiber cables for power communication use metal reinforcing cores?

author
9th February 2026

Power lines can discharge through the metal reinforcing core, shattering the optical fiber and threatening the cable.

The metal reinforcing core can also generate induced current, posing a threat to operators.

I’ve seen strong induced currents where the reinforcing core discharged to ground, sparking, making it impossible for personnel to work on the connection.

Therefore, power communication optical cables cannot use cables with metal reinforcing cores.

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Why can’t optical fiber cables for power communication use metal reinforcing cores?

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