mstrlucky74
Senior Member
- Location
- NJ
When running single conductor 15kv wire is the ground always 600v? Thanks.
MV Ground
- Thread starter mstrlucky74
- Start date
- Status
- Location
- San Francisco Bay Area, CA, USA
- Occupation
- Electrical Engineer
Hmmm... not sure what you mean. Ground is ground. Are you asking if the grounding conductor can be insulated and can that insulation be rated at only 600V?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I've seen HV cable with a bare wire ground, an open mesh like shielded cable but not as closed. I understand it's partially there to equalize and minimize voltage stress on the insulation.
mstrlucky74
Senior Member
- Location
- NJ
I guess??:? I just remember often seeing something like 3 #1/0(15kv) and 1 600v ground in past feeder schedules. Now I've come across 3#1/0 and 1 #1/0 ground but it doesn't say 600v for the ground
MyCleveland
Senior Member
- Location
- Cleveland, Ohio
Look over NEC 2017 250.184 (A) (1).
kwired
Electron manager
- Location
- NE Nebraska
My guess is that grounding conductor could be bare in most instances.
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
We get this with PV systems. Some designers spec 2KV insulated EGC's to go with the 2KV line conductors :rant:
- Status