Which type of conductors is permitted to be in the same raceway as conductive optical fiber cables?

The correct answer is Class 2 conductors because they are specifically designed to operate at a lower voltage and are less likely to cause interference or pose hazards when installed alongside optical fiber cables. Class 2 circuits generally include low-energy and low-voltage conductors, which are appropriate for use with sensitive equipment like fiber optics. This compatibility helps maintain performance levels without introducing electromagnetic interference that could degrade the signal integrity of the optical fibers.

Class 1 conductors, which typically handle higher voltage levels and are associated with general purpose wiring, can introduce higher levels of electromagnetic interference, making them unsuitable for installation in close proximity to optical fibers. Class 3 conductors operate at a higher voltage than Class 2 but lower than Class 1, and while they might be less hazardous than power conductors, they can still produce interference issues that can affect the functionality of optical fibers. Power conductors, used for delivering electrical power, are not suitable companions for fiber cables due to the risk of interference and safety concerns. Therefore, Class 2 conductors are the only suitable conductor type to share a raceway with optical fiber cables.