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- Thread starter domnic
- Start date
- Status
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Do you mean GEC to each 100 amp panel?
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
You are still confusing us.. If the 2- 100 amp breakers are part of the meter main panel then there is no equipment grounding conductor however the equipment grounding conductor must be based on the service conductors. Thus A #4, I suspect is needed for the grounding electrode conductor and you only need one.
kwired
Electron manager
- Location
- NE Nebraska
The two 100 amp breakers are the service disocnnecting means. The service disconnect is bonded to the grounded service conductor. everything past the service disconnect(s) must have an equipment grounding conductor and you can not bond to the grounded conductor again. Only exceptions are for existing things that once did allow such, like frames of ranges and dryers, and feeders to separate buildings, some conditions come along where there are exceptions.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Dominic, if you want help you need to take the time and explain. Obviously, your first attempt did not work. From the meter to each panel there is no equipment grounding conductor. However, if the meter has 2 main breakers (100 amps) then an equipment grounding conductor is needed to each 100 amp panel.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Since you clarified that you're asking about an EGC yes you always need to run an EGC with a feeder to a panel. Since you have the service disconnects at the meter the conductors going to the panels are feeders.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Are you installing 2 conduits or one? If the conduit is metallic then no equipment grounding conductor is required.
kwired
Electron manager
- Location
- NE Nebraska
In post 1 he mentioned "with two 100 amp breakers in meter can", those very likely those two breakers are the service disconnecting means, and the runs from there to each panel in question are feeders.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Technically the metal conduit would be the EGC no?
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Yeah, but technically conduit is not a conductor.
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- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Yes, but it sounded suspicious-- why would you run an equipment grounding conductor in one run but not the other so I was guessing maybe he had one conduit with the 2 runs in it... IDK, this is why I felt like more info was needed
kwired
Electron manager
- Location
- NE Nebraska
I agree that OP isn't all that clear on what he has or exactly what he is asking about. One answer that should apply regardless is all branch circuits and feeders need to include an equipment grounding conductor, if they share a common raceway they can share a common EGC. Older existing situations do have some limited exceptions where you can use the grounded conductor (neutral) for equipment grounding purposes, mostly only would apply to ranges, dryers and feeders to separate buildings.
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