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Where nonconductive optical fiber cables are installed with electric light or power conductors in a raceway, the raceway fill requirements of Chapters 3 and 9 shall apply.

Related Code Sections

770.133 Special Conditions, Installation of Optical Fibers and Electrical Conductors
of the following conditions exist: The nonconductive optical fiber cables are functionally associated with the electric light, power, Class 1, non-power ...