need some direction here ... heres the scenario ... putting an E-Lite on a different circuit from a different panel and my boss wants me to connect 2 J boxes with flex and use the existing conduit to feed the lite ... so we'll have circuits from 2 different panels in the same conduit ... can I do this ... thanks ... M
different panels: one raceway ...
- Thread starter mario
- Start date
- Status
- Location
- Massachusetts
Sure as long as this 'E-Lite' is the battery unit you posted about.
yes these are battery type e-lites. they are fed off the same circuit as the 'outside' lites and now we're putting them with the inside lites ... my problem was whether it was allowed to have the two different panel circuits in the same conduit ... is there an article telling me I can, just in case our inspector questions us ...
- Location
- New Jersey
- Occupation
- Journeyman Electrician
mario said:
Yes they can occupy the same conduit, box etc., unless one is part of a system that falls under Article 700.
Shockedby277v
Senior Member
- Location
- Michigan
I thought if you ran 2 circuits from two different panels the conductors must be identified seperately. After looking for it, I'm reading that the grounded conductors only, need to be identified differently.
200.6(D) and 300.3(C)1 are the 2 that I found.
200.6(D) and 300.3(C)1 are the 2 that I found.
- Location
- Massachusetts
Shockedby277v said:
Those sections apply to different systems, not necessarily panels.
Separate panels may or may not be separate systems.
Shockedby277v
Senior Member
- Location
- Michigan
iwire said:
To add, I believe this does not need to be a seperately derived system.
I understand 2 panels may be part of a same system. For the sake of argument, lets say you have 2 different 208/120 panels next to each other.
Then the grounded conductor in the same raceway must be identified to it's system??
I would like to know this myself if I'm understanding this correctly because I ran into this same issue about a month ago when I was running conduit.
- Location
- Massachusetts
Shockedby277v said:
IMO there is no other way to get another 'system' into a building other than adding an SDS in addition to an existing system.
If they both derive the 208/120 from the same source than no identification is necessary.
If they are supplied from two different systems say two separate transformers than IMO you would have to separately identify the grounded conductor.
Shockedby277v
Senior Member
- Location
- Michigan
Gotcha. Thnx. I was using the word system wrong I think. System is a whole vs parts.
hmspe
Senior Member
- Location
- Temple, TX
- Occupation
- PE
mario said:
Not sure I understand. Are these outdoor emergency lights on an outdoor lighting circuit, but you want to connect them to an indoor circuit instead? Or is the intent to feed the emergency light from both an outdoor circuit and an indoor circuit?
700.12(F) requires unit equipment to be supplied from a circuit in the area where the unit equipment is located (unless there are 3 or more normal lighting circuits in the area), so in most cases an outdoor emergency liight must be on an outdoor lighting circuit and indoor emergency light must be on an indoor lighting circuit. I've never seen unit equipment that can take two 120V feeds from different circuits.
Martin
these are battery type e-lites inside of a large shop. they are presently fed from a circuit that feeds the outside building wallpacks. we are going to feed them from the circuit for the inside lights so they will go on if the inside ones go out for whatever reason.
Pierre C Belarge
Senior Member
- Location
- Westchester County, New York
If these were separate systems, then you would also need to follow 210.5(C) & 215.12(C) for different system identification of conductors.
- Status