Coachmike
Senior Member
- Location
- Morris County, NJ
- Occupation
- Electrical Contractor
Have 4- 4" PVC feeders with 4- 750 MCM CU in each. Need to put a 250 MCM CU ground in each. Any ideas? TIA!
Adding Grounds...
- Thread starter Coachmike
- Start date
- Location
- New Jersey
- Occupation
- Journeyman Electrician
How long are the runs and how many bends? Unless you're going to pull out the 750's your only hope is to get a duct rodder type fish tape through the pipe and then pull in a rope.
ggunn
PE (Electrical), NABCEP certified
- Location
- Austin, TX, USA
- Occupation
- Consulting Electrical Engineer - Photovoltaic Systems
Did you just forget about grounding?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I believe this is related to the other thread where they're inserting a service rated ATS in the existing run making the condutors a feeder and not service conductors.
Point of Service
We have a 2000-amp service on an assisted living facility. We are installing a 500KW genset and 2000-amp ATS on the outside of the facility. The existing service is fed by 4- 4" parallel PVC UG conduits with 4- 750 MCM CU conductors. There is an existing spare/ empty 4" conduit that we would...
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LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Is the question whether to try just adding the EGC vs pulling the wires out and adding it?
It depends on many things, but I'd want to try adding it first.
It depends on many things, but I'd want to try adding it first.
bgard
Member
- Location
- NW Indiana
- Occupation
- Service manager
Pull in the 250 with a new 750, on the next one pull in the 250 and the 750 from the first run, and so on, you would need to have one new length of the 750,