Can the same cable be class 1 for part of a circuit and class 2 for another at the same time?

Location
Florida
Occupation
Electrician
Is it okay to have cm cable cl2 in same conduit as line voltage to switch, but come out of a jbox and be in free air to fixtures at the same time

From what I've read, you can have the cable in the same conduit since the circuit is 120V and the cm cl2 cable is rated for 150V.

The cable is re-classified as a class 1 and will have to be wired with chapter 3 wiring methods.

But can the cable run down to the switch with 120V then come out of the box and jump to fixtures in free air or if it is in conduit to the switch, does it need to stay in conduit to the light? Can you have part of the 0-10V wiring be class 1 where it's in the conduit and call it class 2 when it's just in free air above the ceiling?

I have read a lot of threads, but haven't seen this scenario.

Thanks in advance
Tom
 
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