flex conduit fill

[art]

I have a 6 conductor cable with an outside diameter of 0.41". it's for a traffic signal radar detector and also carries voltage between 10-28 Volts I think it's considered Power over Ethernet (POE). First, is it communications cable under Article 800? if it is, I believe it has to be separated from the signal and lighting conductors. I plan on using flex if required. Everything has to fit in a 2" conduit. Second, what is the maximum conduit fill for flex?

 

[K8MHZ]

Second, what is the maximum conduit fill for flex?

For FMC we would use Chapter 9.

1 conductor 53%
2 conductors 31%
More than 2 conductors 40%

I think you can consider a single multi-conductor cable to be one conductor, so you should be able to use the 53%.

 

[GoldDigger]

Remember that Communications as used in that section specifically refers to common carrier/utility communications, not local data, whether it is audio, video, or anything else.
That seems to be the consensus anyway.

Sent from my XT1585 using Tapatalk

 

[art]

Update: the cable is not Ethernet. It's RS485 with DC power. Do I have to keep it separate from the signal and lighting conductors (120 V)?

 

[Cavie]

All the cables associated with the traffic controls are pulled in the same 2" conduit.