Yes, fiber optic cabling is classified as low voltage, but with an important caveat—it doesn't transmit electrical voltage at all. The National Electrical Code (NEC), specifically Article 770, regulates the installation of fiber optic systems. While fiber optics operate under the umbrella of low-voltage systems, they differ fundamentally from. Fiber optic cables, recognized for their capacity to transmit data at light speeds, are central to modern telecommunications infrastructure. These cables qualify as low voltage due to their unique method of using light, which negates the need for electrical currents, enhancing both safety and. Are fiber-optic cables considered low-voltage cabling? Yes, fiber-optic cables are considered low-voltage cabling. These signals can carry data, voice, or video signals.