Unshielded Cables Sharing the same raceway

Whats is the general consensus, or is there a code in the NEC, regarding unshielded cables being run in the same conduit with other low voltage cables? For example, running security cables with fire alarm. Is this acceptable?
Thanks a lot for your anwsers.
 
Last edited:

Gregg Harris

Senior Member
Whats is the general consensus, or is there a code in the NEC, regarding unshielded cables being run in the same conduit with other low voltage cables? For example, running security cables with fire alarm. Is this acceptable?
Thanks a lot for your anwsers.
760.139 Installation of Conductors of Different PLFA Circuits, Class 2, Class 3, and Communications Circuits in the Same Cable, Enclosure, Cable Tray, or Raceway. (A) Two or More PLFA Circuits. Cable and conductors of two or more power-limited fire alarm circuits, communications circuits, or Class 3 circuits shall be permitted within the same cable, enclosure, cable tray, or raceway.


(B) Class 2 Circuits with PLFA Circuits. Conductors of one or more Class 2 circuits shall be permitted within the same cable, enclosure, cable tray, or raceway with conductors of power-limited fire alarm circuits, provided that the insulation of the Class 2 circuit conductors in the cable, enclosure, or raceway is at least that required by the power-limited fire alarm circuits.
 
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