UL Standards & Engagement Surface Raceways and Fittings for Use with Data, Signal, and Control Circuits UL 5C

1.1 These requirements cover surface raceways and fittings for use with Class 2 data, signal, control circuits, and optical fiber cable. These raceway systems are intended for mechanical protection and routing of circuits. They are not intended for applications which require the use of a raceway in accordance with the National Electrical Code, NFPA 70. 1.2 These requirements do not apply to cable trays, wireways, or metal or nonmetallic raceways that are intended for use on Class 1 circuits. 1.3 These requirements do not apply to the conductors, connectors, or similar items that are used as part of the circuit.