Lighting circuit

Kind of a part 2 the bigger red box represents a pull box the smaller a 1900 box some people here at my job are also saying that the circuit feeding the normal/em/nL lights in the hallway cannot be pulled in the same conduit as the LT 14 lights which are on a different circuit
 

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And part 3 is we're also being told to pipe out from the closest em/nL light to the exit signs marked for circuit #8 which if I'm making sense to y'all would mean it is ALSO sharing the neutral
 
Forgot to mention from the pull box to the 1900 box there's just a 12/3 which is then piped out to the closest start of the lights where I drew the red line
 
Are there multiple circuits from different sources feeding each light?
 
roger said:
Are there multiple circuits from different sources feeding these lights?
Click to expand...
The round pendent lights are circuit #6 which is half normal half em/nL so no from the same circuit BUT it's why I mentioned the 1900 box because from the panel they pulled one black one red ONE white
 
If the circuits are from the same source (the lights having batteries) you can share neutrals.
 
Ok, so you have a generator or UPS feeding the emergency wiring? IOW's different sources, Normal Power and Emergency Power source.
 
roger said:
Ok, so you have a generator or UPS feeding the emergency wiring? IOW's different sources, Normal Power and Emergency Power source.
Click to expand...
Somebody as of this morning I'm now being told it's an entirely different circuit from a different panel which still has me scratching my head because that now means 2 circuits are landing in the same round box
 
You need to read Part II of article 700. Take note of 700.10(B)
 
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