Norm/EM Lighting

[Alwayslearningelec]

There is no code that says the lighting inveter circuits(EM) have to be in a separate conduit from normal, correct?

 

[d0nut]

Incorrect. 700.10(B).

 

[Alwayslearningelec]

Incorrect. 700.10(B).

Thanks. 3 & 4 are confusing.

 

[roger]

Thanks. 3 & 4 are confusing.
View attachment 2573692

Your scenario doesn't meet any of the five conditions, you are asking about the two systems being in the same conduit.

 

[Alwayslearningelec]

So your saying that the circuits would have to be separate even if from an lighting inverter fed from the same panel as the normal lighting circuits.

 

[d0nut]

So your saying that the circuits would have to be separate even if from an lighting inverter fed from the same panel as the normal lighting circuits.

Yes. The emergency branch begins at your inverter. The code is trying to protect against a single failure taking out all of your emergency egress lighting. A fault in a conductor in a shared conduit could take out both the normal and emergency circuit leaving your building egress dark. Failure of the upstream normal panel will cause the inverter to shift to its batteries and will provide the required emergency egress lighting to evacuate the building.